Alert archive / Arizona / Excessive Heat Warnings in 2021

Excessive Heat Warning 1, NWS Tucson, AZ

June 9, 20216 counties in Arizona

NWS Tucson, AZ issued this excessive heat warning at Jun 9, 2021, 2:41 PM MST for 6 counties in Arizona. It took effect at Jun 12, 2021, 10:00 AM MST. It was in force for 8 days. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Jun 9, 2021, 2:41 PM MST (21:41 UTC)
In effect from
Jun 12, 2021, 10:00 AM MST
Expired
Jun 20, 2021, 9:00 PM MST
In force
8 days
Issued by
NWS Tucson, AZ

Counties Cochise County, AZ, Graham County, AZ, Greenlee County, AZ, Pima County, AZ, Pinal County, AZ, Santa Cruz County, AZ

The radar

The Tucson radar (KEMX), 61 km from the middle of the area, began a volume at 21:39 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Tuscon, AZ (KTUS), launched 12:00Z, 9.7 hours before the alert went out and 49 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Tuscon, AZ at 12:00Z on 2021-06-09Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Tuscon, AZ at 12:00Z on 2021-06-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 8 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
4214 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
8 m²/s²
0-3 km storm-relative helicity
76 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

489 
WWUS75 KTWC 092141
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
241 PM MST Wed Jun 9 2021

AZZ504-509-100545-
/O.UPG.KTWC.EH.A.0001.210613T1700Z-210616T1300Z/
/O.NEW.KTWC.EH.W.0001.210613T1700Z-210617T0300Z/
/O.NEW.KTWC.EH.A.0002.210617T0300Z-210619T0400Z/
Tucson Metro Area-Upper Gila River Valley-
Including the cities of Tucson, Green Valley, Marana, Vail, 
Clifton, and Safford
241 PM MST Wed Jun 9 2021

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM SUNDAY TO 8 PM MST
WEDNESDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
FRIDAY EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  108 to 113 Sunday through Wednesday, then 104 to 110 Thursday 
  and Friday.

* WHERE...Tucson Metro Area and Upper Gila River Valley.

* WHEN...For the Excessive Heat Warning, from 10 AM Sunday to 8 
  PM MST Wednesday. For the Excessive Heat Watch, from Wednesday 
  evening through Friday evening.

* IMPACTS...Extreme heat will significantly increase the potential
  for heat related illnesses, particularly for those working or
  participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next
  week. It may be sufficient to create enough cloud cover and
  thunderstorm chances to mitigate some of the heat the second
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ501-502-505-506-100545-
/O.UPG.KTWC.EH.A.0001.210613T1700Z-210616T1300Z/
/O.NEW.KTWC.EH.W.0001.210613T1700Z-210619T0400Z/
Western Pima County-Tohono O'odham Nation-
South Central Pinal County-Southeast Pinal County-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Picacho Peak State Park, Mammoth, and Oracle
241 PM MST Wed Jun 9 2021

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM SUNDAY TO 9 PM MST
FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  108 to 115.

* WHERE...Western Pima County, Tohono O'odham Nation, South 
  Central Pinal County and Southeast Pinal County.

* WHEN...From 10 AM Sunday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next
  week. It may be sufficient to create enough cloud cover and
  thunderstorm chances to mitigate some of the heat the second
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ503-100545-
/O.NEW.KTWC.EH.W.0001.210613T1700Z-210617T0300Z/
/O.NEW.KTWC.EH.A.0002.210617T0300Z-210619T0400Z/
Upper Santa Cruz River Valley/Altar Valley-
Including the city of Nogales
241 PM MST Wed Jun 9 2021

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM SUNDAY TO 8 PM MST
WEDNESDAY...
...EXCESSIVE HEAT WATCH IN EFFECT FROM WEDNESDAY EVENING THROUGH
FRIDAY EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  106 to 110 Sunday through Wednesday, then 102 to 108 Thursday 
  and Friday.

* WHERE...Upper Santa Cruz River Valley/Altar Valley.

* WHEN...For the Excessive Heat Warning, from 10 AM Sunday to 8 
  PM MST Wednesday. For the Excessive Heat Watch, from Wednesday 
  evening through Friday evening.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next
  week. It may be sufficient to create enough cloud cover and
  thunderstorm chances to mitigate some of the heat the second
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
24 follow-up statements
173 
WWUS75 KTWC 100435
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
935 PM MST Wed Jun 9 2021


AZZ503-504-509-101300-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210617T0300Z/
/O.CON.KTWC.EH.A.0002.210617T0300Z-210619T0400Z/
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
Upper Gila River Valley-
Including the cities of Nogales, Tucson, Green Valley, Marana, 
Vail, Clifton, and Safford
935 PM MST Wed Jun 9 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
8 PM MST WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH FRIDAY EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  106 to 110 Sunday through Wednesday, then 102 to 108 Thursday 
  and Friday.

* WHERE...Upper Santa Cruz River Valley/Altar Valley.

* WHEN...For the Excessive Heat Warning, from 10 AM Sunday to 8 
  PM MST Wednesday. For the Excessive Heat Watch, from Wednesday 
  evening through Friday evening.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ501-502-505-506-101300-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210619T0400Z/
Western Pima County-Tohono O'odham Nation-
South Central Pinal County-Southeast Pinal County-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Picacho Peak State Park, Mammoth, and Oracle
935 PM MST Wed Jun 9 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 115.

* WHERE...Western Pima County, Tohono O'odham Nation, South 
  Central Pinal County and Southeast Pinal County.

* WHEN...From 10 AM Sunday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
826 
WWUS75 KTWC 100930
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
230 AM MST Thu Jun 10 2021

AZZ503-504-509-110000-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210617T0300Z/
/O.CON.KTWC.EH.A.0002.210617T0300Z-210619T0400Z/
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
Upper Gila River Valley-
Including the cities of Nogales, Tucson, Green Valley, Marana, 
Vail, Clifton, and Safford
230 AM MST Thu Jun 10 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
8 PM MST WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH FRIDAY EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  106 to 110 Sunday through Wednesday, then 102 to 108 Thursday 
  and Friday.

* WHERE...Upper Santa Cruz River Valley/Altar Valley.

* WHEN...For the Excessive Heat Warning, from 10 AM Sunday to 8 
  PM MST Wednesday. For the Excessive Heat Watch, from Wednesday 
  evening through Friday evening.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ501-502-505-506-110000-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210619T0400Z/
Western Pima County-Tohono O'odham Nation-
South Central Pinal County-Southeast Pinal County-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Picacho Peak State Park, Mammoth, and Oracle
230 AM MST Thu Jun 10 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 115.

* WHERE...Western Pima County, Tohono O'odham Nation, South 
  Central Pinal County and Southeast Pinal County.

* WHEN...From 10 AM Sunday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
510 
WWUS75 KTWC 102112
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
212 PM MST Thu Jun 10 2021

AZZ503-504-509-111100-
/O.EXT.KTWC.EH.W.0001.210612T1700Z-210617T0300Z/
/O.CON.KTWC.EH.A.0002.210617T0300Z-210619T0400Z/
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
Upper Gila River Valley-
Including the cities of Nogales, Tucson, Green Valley, Marana, 
Vail, Clifton, and Safford
212 PM MST Thu Jun 10 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT FROM 10 AM SATURDAY TO
8 PM MST WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH FRIDAY EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  106 to 112 Saturday through Wednesday, then 102 to 108 Thursday
  and Friday.

* WHERE...Upper Santa Cruz River Valley/Altar Valley.

* WHEN...For the Excessive Heat Warning, from 10 AM Saturday to 
  8 PM MST Wednesday. For the Excessive Heat Watch, from 
  Wednesday evening through Friday evening.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ502-505-506-111100-
/O.EXT.KTWC.EH.W.0001.210612T1700Z-210619T0400Z/
Tohono O'odham Nation-South Central Pinal County-
Southeast Pinal County-
Including the cities of Sells, Picacho Peak State Park, Mammoth, 
and Oracle
212 PM MST Thu Jun 10 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT FROM 10 AM SATURDAY TO
9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 115.

* WHERE...Tohono O'odham Nation, South Central Pinal County and 
  Southeast Pinal County.

* WHEN...From 10 AM Saturday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ501-111100-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210619T0400Z/
Western Pima County-
Including the cities of Ajo and Organ Pipe Cactus N.M.
212 PM MST Thu Jun 10 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 115.

* WHERE...Western Pima County.

* WHEN...From 10 AM Sunday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
658 
WWUS75 KTWC 111110
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
410 AM MST Fri Jun 11 2021

AZZ503-504-509-112000-
/O.CON.KTWC.EH.W.0001.210612T1700Z-210617T0300Z/
/O.CON.KTWC.EH.A.0002.210617T0300Z-210619T0400Z/
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
Upper Gila River Valley-
Including the cities of Nogales, Tucson, Green Valley, Marana, 
Vail, Clifton, and Safford
410 AM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SATURDAY
TO 8 PM MST WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH FRIDAY EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  106 to 112 Saturday through Wednesday, then 102 to 108 
  Thursday and Friday.

* WHERE...Upper Santa Cruz River Valley/Altar Valley.

* WHEN...For the Excessive Heat Warning, from 10 AM Saturday to 
  8 PM MST Wednesday. For the Excessive Heat Watch, from 
  Wednesday evening through Friday evening.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ502-505-506-112000-
/O.CON.KTWC.EH.W.0001.210612T1700Z-210619T0400Z/
Tohono O'odham Nation-South Central Pinal County-
Southeast Pinal County-
Including the cities of Sells, Picacho Peak State Park, Mammoth, 
and Oracle
410 AM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SATURDAY
TO 9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 115.

* WHERE...Tohono O'odham Nation, South Central Pinal County and 
  Southeast Pinal County.

* WHEN...From 10 AM Saturday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ501-112000-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210619T0400Z/
Western Pima County-
Including the cities of Ajo and Organ Pipe Cactus N.M.
410 AM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 115.

* WHERE...Western Pima County.

* WHEN...From 10 AM Sunday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
487 
WWUS75 KTWC 111637
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
937 AM MST Fri Jun 11 2021

AZZ507-508-120000-
/O.EXB.KTWC.EH.W.0001.210612T1700Z-210615T0300Z/
Upper San Pedro River Valley-
Eastern Cochise County below 5000 feet-
Including the cities of Sierra Vista, Benson, and Willcox
937 AM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM SATURDAY TO 8 PM
MST MONDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  103 to 109.

* WHERE...Upper San Pedro River Valley and Eastern Cochise 
  County below 5000 feet.

* WHEN...From 10 AM Saturday to 8 PM MST Monday.

* IMPACTS...Extreme heat will significantly increase the potential
  for heat related illnesses, particularly for those working or
  participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ503-504-509-120000-
/O.CON.KTWC.EH.W.0001.210612T1700Z-210617T0300Z/
/O.CON.KTWC.EH.A.0002.210617T0300Z-210619T0400Z/
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
Upper Gila River Valley-
Including the cities of Nogales, Tucson, Green Valley, Marana, 
Vail, Clifton, and Safford
937 AM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SATURDAY
TO 8 PM MST WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH FRIDAY EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  107 to 113 Saturday through Wednesday, then 103 to 109 Thursday
  and Friday.

* WHERE...Upper Santa Cruz River Valley/Altar Valley.

* WHEN...For the Excessive Heat Warning, from 10 AM Saturday to 
  8 PM MST Wednesday. For the Excessive Heat Watch, from 
  Wednesday evening through Friday evening.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ502-505-506-120000-
/O.CON.KTWC.EH.W.0001.210612T1700Z-210619T0400Z/
Tohono O'odham Nation-South Central Pinal County-
Southeast Pinal County-
Including the cities of Sells, Picacho Peak State Park, Mammoth, 
and Oracle
937 AM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SATURDAY
TO 9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 115.

* WHERE...Tohono O'odham Nation, South Central Pinal County and 
  Southeast Pinal County.

* WHEN...From 10 AM Saturday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ501-120000-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210619T0400Z/
Western Pima County-
Including the cities of Ajo and Organ Pipe Cactus N.M.
937 AM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 115.

* WHERE...Western Pima County.

* WHEN...From 10 AM Sunday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
032 
WWUS75 KTWC 112105
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
205 PM MST Fri Jun 11 2021

AZZ503-504-509-121100-
/O.CON.KTWC.EH.W.0001.210612T1700Z-210617T0300Z/
/O.CON.KTWC.EH.A.0002.210617T0300Z-210619T0400Z/
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
Upper Gila River Valley-
Including the cities of Nogales, Tucson, Green Valley, Marana, 
Vail, Clifton, and Safford
205 PM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SATURDAY
TO 8 PM MST WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH FRIDAY EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  107 to 113 Saturday through Wednesday, then 104 to 110 Thursday
  and Friday.

* WHERE...Upper Santa Cruz River Valley/Altar Valley.

* WHEN...For the Excessive Heat Warning, from 10 AM Saturday to 
  8 PM MST Wednesday. For the Excessive Heat Watch, from 
  Wednesday evening through Friday evening.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ502-505-506-121100-
/O.CON.KTWC.EH.W.0001.210612T1700Z-210619T0400Z/
Tohono O'odham Nation-South Central Pinal County-
Southeast Pinal County-
Including the cities of Sells, Picacho Peak State Park, Mammoth, 
and Oracle
205 PM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SATURDAY
TO 9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  108 to 116.

* WHERE...Tohono O'odham Nation, South Central Pinal County and 
  Southeast Pinal County.

* WHEN...From 10 AM Saturday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ507-508-121100-
/O.CON.KTWC.EH.W.0001.210612T1700Z-210615T0300Z/
Upper San Pedro River Valley-
Eastern Cochise County below 5000 feet-
Including the cities of Sierra Vista, Benson, and Willcox
205 PM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SATURDAY
TO 8 PM MST MONDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  104 to 109.

* WHERE...Upper San Pedro River Valley and Eastern Cochise 
  County below 5000 feet.

* WHEN...From 10 AM Saturday to 8 PM MST Monday.

* IMPACTS...Extreme heat will significantly increase the potential
  for heat related illnesses, particularly for those working or
  participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ501-121100-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210619T0400Z/
Western Pima County-
Including the cities of Ajo and Organ Pipe Cactus N.M.
205 PM MST Fri Jun 11 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  109 to 116.

* WHERE...Western Pima County.

* WHEN...From 10 AM Sunday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

* ADDITIONAL DETAILS...Some moisture increase is expected next 
  week. It may be sufficient to create enough cloud cover and 
  thunderstorm chances to mitigate some of the heat the second 
  half of the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
584 
WWUS75 KTWC 120958
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
258 AM MST Sat Jun 12 2021

AZZ503-504-509-122000-
/O.CON.KTWC.EH.W.0001.210612T1700Z-210617T0300Z/
/O.CON.KTWC.EH.A.0002.210617T0300Z-210619T0400Z/
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
Upper Gila River Valley-
Including the cities of Nogales, Tucson, Green Valley, Marana, 
Vail, Clifton, and Safford
258 AM MST Sat Jun 12 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 8 PM MST WEDNESDAY...
...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM WEDNESDAY EVENING
THROUGH FRIDAY EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  107 to 113 Saturday through Wednesday, then 104 to 110 
  Thursday and Friday.

* WHERE...Upper Santa Cruz River Valley/Altar Valley.

* WHEN...For the Excessive Heat Warning, from 10 AM Saturday to 
  8 PM MST Wednesday. For the Excessive Heat Watch, from 
  Wednesday evening through Friday evening.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ502-505-506-122000-
/O.CON.KTWC.EH.W.0001.210612T1700Z-210619T0400Z/
Tohono O'odham Nation-South Central Pinal County-
Southeast Pinal County-
Including the cities of Sells, Picacho Peak State Park, Mammoth, 
and Oracle
258 AM MST Sat Jun 12 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 116.

* WHERE...Tohono O'odham Nation, South Central Pinal County and 
  Southeast Pinal County.

* WHEN...From 10 AM today to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ507-508-122000-
/O.CON.KTWC.EH.W.0001.210612T1700Z-210615T0300Z/
Upper San Pedro River Valley-
Eastern Cochise County below 5000 feet-
Including the cities of Sierra Vista, Benson, and Willcox
258 AM MST Sat Jun 12 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 8 PM MST MONDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  104 to 109.

* WHERE...Upper San Pedro River Valley and Eastern Cochise 
  County below 5000 feet.

* WHEN...From 10 AM today to 8 PM MST Monday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ501-122000-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210619T0400Z/
Western Pima County-
Including the cities of Ajo and Organ Pipe Cactus N.M.
258 AM MST Sat Jun 12 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 116.

* WHERE...Western Pima County.

* WHEN...From 10 AM Sunday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
270 
WWUS75 KTWC 121952
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
1252 PM MST Sat Jun 12 2021

AZZ503-504-509-130400-
/O.CAN.KTWC.EH.A.0002.210617T0300Z-210619T0400Z/
/O.EXT.KTWC.EH.W.0001.000000T0000Z-210619T0400Z/
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
Upper Gila River Valley-
Including the cities of Nogales, Tucson, Green Valley, Marana, 
Vail, Clifton, and Safford
1252 PM MST Sat Jun 12 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  107 to 113 today through Friday.

* WHERE...Upper Santa Cruz River Valley/Altar Valley, Tucson 
  Metro Area and Upper Gila River Valley.

* WHEN...In effect until 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the potential
  for heat related illnesses, particularly for those working or
  participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ502-505-506-130400-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210619T0400Z/
Tohono O'odham Nation-South Central Pinal County-
Southeast Pinal County-
Including the cities of Sells, Picacho Peak State Park, Mammoth, 
and Oracle
1252 PM MST Sat Jun 12 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 116.

* WHERE...Tohono O'odham Nation, South Central Pinal County and 
  Southeast Pinal County.

* WHEN...In effect until 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the potential
  for heat related illnesses, particularly for those working or
  participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ507-508-130400-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210615T0300Z/
Upper San Pedro River Valley-
Eastern Cochise County below 5000 feet-
Including the cities of Sierra Vista, Benson, and Willcox
1252 PM MST Sat Jun 12 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  104 to 109.

* WHERE...Upper San Pedro River Valley and Eastern Cochise 
  County below 5000 feet.

* WHEN...In effect until 8 PM MST Monday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ501-130400-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210619T0400Z/
Western Pima County-
Including the cities of Ajo and Organ Pipe Cactus N.M.
1252 PM MST Sat Jun 12 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM SUNDAY TO
9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 116.

* WHERE...Western Pima County.

* WHEN...From 10 AM Sunday to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
720 
WWUS75 KTWC 130918
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
218 AM MST Sun Jun 13 2021

AZZ502>506-509-131730-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210619T0400Z/
Tohono O'odham Nation-Upper Santa Cruz River Valley/Altar Valley-
Tucson Metro Area-South Central Pinal County-
Southeast Pinal County-Upper Gila River Valley-
Including the cities of Sells, Nogales, Tucson, Green Valley, 
Marana, Vail, Picacho Peak State Park, Mammoth, Oracle, Clifton, 
and Safford
218 AM MST Sun Jun 13 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  108 to 116.

* WHERE...Tohono O'odham Nation, South Central Pinal County and 
  Southeast Pinal County.

* WHEN...In effect until 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ507-508-131730-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210615T0300Z/
Upper San Pedro River Valley-
Eastern Cochise County below 5000 feet-
Including the cities of Sierra Vista, Benson, and Willcox
218 AM MST Sun Jun 13 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  106 to 110.

* WHERE...Upper San Pedro River Valley and Eastern Cochise 
  County below 5000 feet.

* WHEN...In effect until 8 PM MST Monday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ501-131730-
/O.CON.KTWC.EH.W.0001.210613T1700Z-210619T0400Z/
Western Pima County-
Including the cities of Ajo and Organ Pipe Cactus N.M.
218 AM MST Sun Jun 13 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM 10 AM THIS
MORNING TO 9 PM MST FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  109 to 115.

* WHERE...Western Pima County.

* WHEN...From 10 AM this morning to 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
560 
WWUS75 KTWC 132051
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
151 PM MST Sun Jun 13 2021

AZZ501>506-509-141400-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210619T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
151 PM MST Sun Jun 13 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
FRIDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 115.

* WHERE...Western Pima County.

* WHEN...In effect until 9 PM MST Friday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ507-508-141400-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210615T0300Z/
Upper San Pedro River Valley-
Eastern Cochise County below 5000 feet-
Including the cities of Sierra Vista, Benson, and Willcox
151 PM MST Sun Jun 13 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST
MONDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  106 to 110.

* WHERE...Upper San Pedro River Valley and Eastern Cochise 
  County below 5000 feet.

* WHEN...In effect until 8 PM MST Monday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
301 
WWUS75 KTWC 140926
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
226 AM MST Mon Jun 14 2021

AZZ501>506-509-141900-
/O.EXT.KTWC.EH.W.0001.000000T0000Z-210620T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
226 AM MST Mon Jun 14 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 9 PM MST SATURDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 115.

* WHERE...Western Pima County.

* WHEN...Until 9 PM MST Saturday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ507-508-141900-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210615T0300Z/
Upper San Pedro River Valley-
Eastern Cochise County below 5000 feet-
Including the cities of Sierra Vista, Benson, and Willcox
226 AM MST Mon Jun 14 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  106 to 110.

* WHERE...Upper San Pedro River Valley and Eastern Cochise 
  County below 5000 feet.

* WHEN...In effect until 8 PM MST Monday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
765 
WWUS75 KTWC 141758
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
1058 AM MST Mon Jun 14 2021


AZZ501>506-509-151200-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210620T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
1058 AM MST Mon Jun 14 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SATURDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 115.

* WHERE...Western Pima County.

* WHEN...Until 9 PM MST Saturday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

AZZ507-508-150300-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210615T0300Z/
Upper San Pedro River Valley-
Eastern Cochise County below 5000 feet-
Including the cities of Sierra Vista, Benson, and Willcox
1058 AM MST Mon Jun 14 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  106 to 110.

* WHERE...Upper San Pedro River Valley and Eastern Cochise 
  County below 5000 feet.

* WHEN...In effect until 8 PM MST Monday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
646 
WWUS75 KTWC 150247
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
747 PM MST Mon Jun 14 2021

AZZ507-508-150400-
/O.EXP.KTWC.EH.W.0001.000000T0000Z-210615T0300Z/
Upper San Pedro River Valley-
Eastern Cochise County below 5000 feet-
Including the cities of Sierra Vista, Benson, and Willcox
747 PM MST Mon Jun 14 2021

...EXCESSIVE HEAT WARNING WILL EXPIRE AT 8 PM MST THIS EVENING...

$$

AZZ501>506-509-151215-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210620T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
747 PM MST Mon Jun 14 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SATURDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 115.

* WHERE...Western Pima County, Pinal County, and parts of Graham
  and Greenlee Counties.

* WHEN...Until 9 PM MST Saturday.

* IMPACTS...Extreme heat will significantly increase the potential
  for heat related illnesses, particularly for those working or
  participating in outdoor activities.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
935 
WWUS75 KTWC 150904
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
204 AM MST Tue Jun 15 2021

AZZ501>506-509-152000-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210620T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
204 AM MST Tue Jun 15 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SATURDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 115.

* WHERE...Western Pima County, Pinal County, and parts of Graham 
  and Greenlee Counties.

* WHEN...Until 9 PM MST Saturday.

* IMPACTS...Extreme heat and humidity will significantly 
  increase the potential for heat related illnesses, 
  particularly for those working or participating in outdoor 
  activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
190 
WWUS75 KTWC 151950
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
1250 PM MST Tue Jun 15 2021

AZZ501>506-509-161200-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210620T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
1250 PM MST Tue Jun 15 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SATURDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  109 to 116.

* WHERE...Western Pima County, Pinal County, and parts of Graham 
  and Greenlee Counties.

* WHEN...Until 9 PM MST Saturday.

* IMPACTS...Extreme heat and humidity will significantly 
  increase the potential for heat related illnesses, 
  particularly for those working or participating in outdoor 
  activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
295 
WWUS75 KTWC 160908
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
208 AM MST Wed Jun 16 2021

AZZ501>506-509-162000-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210620T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
208 AM MST Wed Jun 16 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SATURDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  109 to 116.

* WHERE...Western Pima County, Pinal County, and parts of Graham 
  and Greenlee Counties.

* WHEN...Until 9 PM MST Saturday.

* IMPACTS...Extreme heat and humidity will significantly 
  increase the potential for heat related illnesses, 
  particularly for those working or participating in outdoor 
  activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
950 
WWUS75 KTWC 161939
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
1239 PM MST Wed Jun 16 2021


AZZ501>506-509-171100-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210620T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
1239 PM MST Wed Jun 16 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SATURDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 116.

* WHERE...Western Pima County, Pinal County, and parts of Graham 
  and Greenlee Counties.

* WHEN...Until 9 PM MST Saturday.

* IMPACTS...Extreme heat and humidity will significantly 
  increase the potential for heat related illnesses, 
  particularly for those working or participating in outdoor 
  activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

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359 
WWUS75 KTWC 170921
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
221 AM MST Thu Jun 17 2021

AZZ501>506-509-171900-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210620T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
221 AM MST Thu Jun 17 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SATURDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 116.

* WHERE...Western Pima County, Pinal County, and parts of Graham 
  and Greenlee Counties.

* WHEN...Until 9 PM MST Saturday.

* IMPACTS...Extreme heat and humidity will significantly 
  increase the potential for heat related illnesses, 
  particularly for those working or participating in outdoor 
  activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

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016 
WWUS75 KTWC 171918
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
1218 PM MST Thu Jun 17 2021

AZZ501>506-509-181200-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210620T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
1218 PM MST Thu Jun 17 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SATURDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 116.

* WHERE...Western Pima County, Pinal County, and parts of Graham 
  and Greenlee Counties.

* WHEN...Until 9 PM MST Saturday.

* IMPACTS...Extreme heat and humidity will significantly  
  increase the potential for heat related illnesses, particularly 
  for those working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

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051 
WWUS75 KTWC 180918
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
218 AM MST Fri Jun 18 2021

AZZ501>506-509-182300-
/O.EXT.KTWC.EH.W.0001.000000T0000Z-210621T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
218 AM MST Fri Jun 18 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 9 PM MST SUNDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 116.

* WHERE...Western Pima County, Pinal County, and parts of Graham 
  and Greenlee Counties.

* WHEN...Until 9 PM MST Sunday.

* IMPACTS...Extreme heat and humidity will significantly 
  increase the potential for heat related illnesses, 
  particularly for those working or participating in outdoor 
  activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

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926 
WWUS75 KTWC 182136
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
236 PM MST Fri Jun 18 2021

AZZ501>506-509-191200-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210621T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
236 PM MST Fri Jun 18 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SUNDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 116.

* WHERE...Western Pima County, Pinal County, and parts of Graham 
  and Greenlee Counties.

* WHEN...Until 9 PM MST Sunday.

* IMPACTS...Extreme heat and humidity will significantly  
  increase the potential for heat related illnesses, particularly 
  for those working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
213 
WWUS75 KTWC 190913
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
213 AM MST Sat Jun 19 2021

AZZ501>506-509-192300-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210621T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
213 AM MST Sat Jun 19 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SUNDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from 
  109 to 116.

* WHERE...Western Pima County, Pinal County, and parts of Graham 
  and Greenlee Counties.

* WHEN...Until 9 PM MST Sunday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
786 
WWUS75 KTWC 192038
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
138 PM MST Sat Jun 19 2021

AZZ501>506-509-201030-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210621T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
138 PM MST Sat Jun 19 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST
SUNDAY...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  108 to 116.

* WHERE...Most of south central to southeast Arizona, including
  the greater Tucson area.

* WHEN...Until 9 PM MST Sunday.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

Visit us on Facebook...Twitter...YouTube...and at weather.gov/Tucson
747 
WWUS75 KTWC 200920
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
220 AM MST Sun Jun 20 2021

AZZ501>506-509-210400-
/O.CON.KTWC.EH.W.0001.000000T0000Z-210621T0400Z/
Western Pima County-Tohono O'odham Nation-
Upper Santa Cruz River Valley/Altar Valley-Tucson Metro Area-
South Central Pinal County-Southeast Pinal County-
Upper Gila River Valley-
Including the cities of Ajo, Organ Pipe Cactus N.M., Sells, 
Nogales, Tucson, Green Valley, Marana, Vail, 
Picacho Peak State Park, Mammoth, Oracle, Clifton, and Safford
220 AM MST Sun Jun 20 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM MST THIS
EVENING...

* WHAT...Dangerously hot conditions. Afternoon temperatures from
  107 to 112.

* WHERE...Most of south central to southeast Arizona, including 
  the greater Tucson area.

* WHEN...Until 9 PM MST this evening.

* IMPACTS...Extreme heat will significantly increase the 
  potential for heat related illnesses, particularly for those 
  working or participating in outdoor activities.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Keep in mind you may need to adjust your plans based on the
latest health and safety guidelines from CDC and your local
officials. Cooling shelters may need to take your temperature or
ask questions about how you are feeling.

Drink plenty of fluids, stay in an air-conditioned room, stay out
of the sun, and check up on relatives and neighbors. Young
children and pets should never be left unattended in vehicles
under any circumstances.

Take extra precautions if you work or spend time outside. When
possible reschedule strenuous activities to early morning or
evening. Know the signs and symptoms of heat exhaustion and heat
stroke. Wear lightweight and loose fitting clothing when
possible. To reduce risk during outdoor work, the Occupational
Safety and Health Administration recommends scheduling frequent
rest breaks in shaded or air conditioned environments. Anyone
overcome by heat should be moved to a cool and shaded location.
Heat stroke is an emergency! Call 9 1 1.

&&

$$

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What forecasters said that day

The local office's own words before this excessive heat warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Tucson, AZ wrote its last area forecast discussion before this excessive heat warning went out at Jun 9, 2:30 AM MST, 12 hours 11 minutes earlier.

Area forecast discussion, Jun 9, 2:30 AM MST, 12 hours 11 minutes before
Area Forecast Discussion
National Weather Service Tucson AZ
230 AM MST Wed Jun 9 2021

.SYNOPSIS...Typical June temperatures the next couple of days.
Strong high pressure will heat things up late in the week into
next week, with temperatures around 10 degrees hotter than average
Sunday into early next week.

&&

.DISCUSSION...Southwest flow aloft as the area is between strong
high pressure centered over Chihuahua MX and a Pacific trof which
will move across the NW part of the CONUS later today into
Thursday. Enjoy the near normal highs today and tomorrow for the
heat machine will be cranking up this weekend into next week.

The strong upper high to our southeast will be expanding over the
desert southwest later in the week through the weekend bringing
near record high temperatures Saturday then record to near record
highs Sunday into early next week. The forecast highs Mon/Tue
were leaned toward the high end of the temperature spread with
the 00z GFS/ECMWF thickness numbers suggesting it could even be
slightly hotter. In coordination with WFO we will hoist up a
Excessive Heat Watch starting late Sunday morning into Tuesday for
most of Pima county, southeast Pinal and Graham county.

As the high pushes into northern AZ next week the flow aloft
becomes easterly which will bring an increase in mid-level
moisture to the area for a slight chance of mainly mountain
storms, likely dry, early next week. Some timing differences
between the GEFS (Mon) and EPS (Tue) on the increase of this
slightly above normal moisture for mid-June.

&&

.AVIATION...Valid through 10/00Z.
VFR conditions with FEW-SCT clouds above 20k ft MSL. SFC winds
SWLY/NWLY 10-15 kts with gusts 20-25 kts this afternoon and early
evening. Expect similar speeds Wednesday afternoon. Sfc winds then
diminish to light and variable once again aft 09/03Z. Aviation
discussion not updated for TAF amendments.

&&

.FIRE WEATHER...Dry and hot weather is expected through this
weekend as temperatures gradually climb to well above normal levels.
Some increased mid level moisture is possible early next week which
could increase the dry lightning threat. Otherwise, typical
afternoon breezes with gusts to around 20-25 mph is expected each
day this week due to strong daytime heating. Minimum humidities will
generally be in the single digits in the valleys and 6-12% in the
mountains with poor overnight recoveries. Lowest humidities look to
be during the Friday-Sunday timeframe.

&&

.TWC WATCHES/WARNINGS/ADVISORIES...
 Excessive Heat Watch from late Sunday morning through late
  Tuesday night for AZZ501-502-504>506-509.

&&

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The office that day

Everything else NWS Tucson, AZ issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 9, 2:22 AM MSTExcessive Heat WatchTWCGraham, Greenlee, Pima, Pinal12 hr
Jun 9, 2:41 PM MSTExcessive Heat WatchTWCGraham, Greenlee, Pima, Santa Cruz70 hr

Nearby

Excessive Heat Warnings in Arizona, 2021Every excessive heat warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.