Excessive Heat Warning 1, NWS Sacramento, CA

730 
WWUS76 KSTO 282053
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
153 PM PDT Fri May 28 2021

...Excessive Heat to Impact Northern California Over the Memorial
Day Holiday...

.An early-season heat event will impact portions of northern
California as high pressure builds overhead. High temperatures
will soar into upper the 90s and 100s as early as Sunday.
Additional warming is expected on Monday and Tuesday Valley-wide
with localized areas in the central and northern Sacramento
Valley approaching the 108 to 110 degree F range. These hot
afternoon temperatures, combined with warm overnight lows in the
middle/upper 60s to 70s, will produce widespread moderate to high
heat risk. Consequently, an Excessive Heat Warning has been
issued.

CAZ013-015>017-063-066-067-291500-
/O.CON.KSTO.EH.W.0001.210530T1900Z-210602T0300Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Southern Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-Motherlode-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Sacramento, Alder Springs, 
Paradise, Grass Valley, and Jackson
153 PM PDT Fri May 28 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON SUNDAY TO
8 PM PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to 
  108 degrees. Isolated locations may approach 110 degrees on 
  the hottest afternoons in the central and northern Sacramento 
  Valley.

* WHERE...Sacramento Valley and adjacent foothills.

* WHEN...From noon Sunday to 8 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments.

* ADDITIONAL DETAILS...Hottest afternoons are forecast to occur 
  on Memorial Day (Monday) and Tuesday. Holiday travelers, 
  hikers, campers, and outdoor enthusiasts should prepare for 
  the excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ018-019-291500-
/O.CON.KSTO.EH.W.0001.210531T1900Z-210602T0300Z/
Carquinez Strait and Delta-Northern San Joaquin Valley-
Including the cities of Fairfield/Suisun, Stockton, and Modesto
153 PM PDT Fri May 28 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON MONDAY TO
8 PM PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to 
  105 degrees.

* WHERE...The Delta region, Northern San Joaquin Valley, and 
  adjacent foothills.

* WHEN...From noon Monday to 8 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments.

* ADDITIONAL DETAILS...Hottest afternoons are forecast to occur 
  on Memorial Day (Monday) and Tuesday. Holiday travelers, 
  hikers, campers, and outdoor enthusiasts should prepare for 
  the excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

072 
WWUS76 KSTO 290922
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
222 AM PDT Sat May 29 2021

...Excessive Heat to Impact Northern California Over the Memorial
Day Holiday...

.An early-season heat event will impact portions of northern
California as high pressure builds overhead. High temperatures
will soar into mid/upper 90s to near 100 for the northern portion
of the Sacramento Valley today. Additional warming is expected on
Monday and Tuesday Valley-wide with localized areas in the 
central and northern Sacramento Valley approaching the 108 to 110 
degree F range. These hot afternoon temperatures, combined with 
warm overnight lows in the middle/upper 60s to 70s, will produce 
widespread moderate to high heat risk.

CAZ013-015>017-063-066-067-300000-
/O.CON.KSTO.EH.W.0001.210530T1900Z-210602T0300Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Southern Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-Motherlode-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Sacramento, Alder Springs, 
Paradise, Grass Valley, and Jackson
222 AM PDT Sat May 29 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON SUNDAY TO
8 PM PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to 
  108 degrees. Isolated locations may approach 110 degrees on 
  the hottest afternoons in the central and northern Sacramento 
  Valley.

* WHERE...Sacramento Valley and adjacent foothills.

* WHEN...From noon Sunday to 8 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments.

* ADDITIONAL DETAILS...Hottest afternoons are forecast to occur 
  on Memorial Day (Monday) and Tuesday. Holiday travelers, 
  hikers, campers, and outdoor enthusiasts should prepare for 
  the excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ018-019-300000-
/O.CON.KSTO.EH.W.0001.210531T1900Z-210602T0300Z/
Carquinez Strait and Delta-Northern San Joaquin Valley-
Including the cities of Fairfield/Suisun, Stockton, and Modesto
222 AM PDT Sat May 29 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON MONDAY TO
8 PM PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to 
  105 degrees.

* WHERE...The Delta region, Northern San Joaquin Valley, and 
  adjacent foothills.

* WHEN...From noon Monday to 8 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments.

* ADDITIONAL DETAILS...Hottest afternoons are forecast to occur 
  on Memorial Day (Monday) and Tuesday. Holiday travelers, 
  hikers, campers, and outdoor enthusiasts should prepare for 
  the excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

365 
WWUS76 KSTO 292041
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
141 PM PDT Sat May 29 2021

...Excessive Heat to Impact Northern California Over the Memorial
Day Holiday...

.An early-season heat event will impact portions of northern
California as high pressure builds overhead. High temperatures
will soar into mid/upper 90s to near 105 for the northern portion
of the Sacramento Valley Sunday. Additional warming is expected 
on Monday and Tuesday Valley-wide with localized areas in the 
central and northern Sacramento Valley approaching the 108 to 110 
degree F range. These hot afternoon temperatures, combined with 
warm overnight lows in the middle/upper 60s to 70s, will produce 
widespread moderate to high heat risk.

CAZ017-067-301200-
/O.EXT.KSTO.EH.W.0001.210531T1900Z-210602T0300Z/
Southern Sacramento Valley-Motherlode-
Including the cities of Sacramento, Grass Valley, and Jackson
141 PM PDT Sat May 29 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT FROM NOON MONDAY TO 8 PM
PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to
  108 degrees. Isolated locations may approach 108 degrees on
  Monday over the southern Sacramento valley.

* WHERE...Southern Sacramento Valley and adjacent foothills.

* WHEN...From noon Monday to 8 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. 

* ADDITIONAL DETAILS...Hottest afternoons are forecast to occur 
  on Memorial Day (Monday) and Tuesday. Holiday travelers, 
  hikers, campers, and outdoor enthusiasts should prepare for 
  the excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

CAZ013-015-016-063-066-301200-
/O.CON.KSTO.EH.W.0001.210530T1900Z-210602T0300Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
141 PM PDT Sat May 29 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON SUNDAY TO
8 PM PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to 
  108 degrees. Isolated locations may approach 110 degrees on 
  the hottest afternoons in the central and northern Sacramento 
  Valley. 

* WHERE...Sacramento Valley and adjacent foothills.

* WHEN...From noon Sunday to 8 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. 

* ADDITIONAL DETAILS...Hottest afternoons are forecast to occur 
  on Memorial Day (Monday) and Tuesday. Holiday travelers, 
  hikers, campers, and outdoor enthusiasts should prepare for 
  the excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ018-019-301200-
/O.CON.KSTO.EH.W.0001.210531T1900Z-210602T0300Z/
Carquinez Strait and Delta-Northern San Joaquin Valley-
Including the cities of Fairfield/Suisun, Stockton, and Modesto
141 PM PDT Sat May 29 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON MONDAY TO
8 PM PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to 
  105 degrees. 

* WHERE...The Delta region, Northern San Joaquin Valley, and 
  adjacent foothills. 

* WHEN...From noon Monday to 8 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. 

* ADDITIONAL DETAILS...Hottest afternoons are forecast to occur 
  on Memorial Day (Monday) and Tuesday. Holiday travelers, 
  hikers, campers, and outdoor enthusiasts should prepare for 
  the excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

845 
WWUS76 KSTO 301045
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
345 AM PDT Sun May 30 2021

...Excessive heat early this week...

.An early-season heat event will impact interior northern 
California as high pressure builds overhead. High temperatures 
will climb above the century mark across the northern half of the
Sacramento Valley today. Additional warming is expected on
Memorial Day with most of the Central Valley expected to see 
highs ranging from 105 to 110 degrees. These hot afternoon 
temperatures combined with warm overnight lows in the mid 60s to 
mid 70s will result in widespread moderate to high heat risk.

CAZ013-015-016-063-066-302330-
/O.CON.KSTO.EH.W.0001.210530T1900Z-210602T0300Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
345 AM PDT Sun May 30 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO
8 PM PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs 95 to 105 today, and
  100 to 110 on Memorial Day and Tuesday. Lows only in the upper
  60s and 70s.

* WHERE...Northern half of the Sacramento Valley and surrounding
  foothills.

* WHEN...From noon today to 8 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related
  illnesses such as heat exhaustion and heat stroke can occur due
  to prolonged exposure to hot temperatures. Most vulnerable
  include children, the elderly, those without air conditioning,
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ017>019-067-302330-
/O.CON.KSTO.EH.W.0001.210531T1900Z-210602T0300Z/
Southern Sacramento Valley-Carquinez Strait and Delta-
Northern San Joaquin Valley-Motherlode-
Including the cities of Sacramento, Fairfield/Suisun, Stockton, 
Modesto, Grass Valley, and Jackson
345 AM PDT Sun May 30 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON MONDAY TO
8 PM PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to
  around 108 degrees, hottest on Memorial Day.

* WHERE...Southern Sacramento Valley, Northern San Joaquin Valley,
  Carquinez Strait and Delta, and surrounding foothills.

* WHEN...From noon Monday to 8 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related
  illnesses such as heat exhaustion and heat stroke can occur due
  to prolonged exposure to hot temperatures. Most vulnerable
  include children, the elderly, those without air conditioning,
  and those with chronic ailments. Holiday travelers, hikers,
  campers, and outdoor enthusiasts should prepare for the
  excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

050 
WWUS76 KSTO 301953
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
1253 PM PDT Sun May 30 2021

...Excessive heat early this week...

.An early-season heat event will impact interior northern
California as high pressure builds overhead. High temperatures
will climb above the century mark across the northern half of the
Sacramento Valley today. Additional warming is expected on
Memorial Day with most of the Central Valley expected to see
highs ranging from 105 to 110 degrees. These hot afternoon
temperatures combined with warm overnight lows in the 60s to mid 
70s will result in widespread moderate to high heat risk. Delta
breeze will bring cooling to the Sacramento and Stockton areas on
Tuesday while it will still remain hot further inland.

CAZ013-015-016-063-066-311200-
/O.EXT.KSTO.EH.W.0001.000000T0000Z-210602T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
1253 PM PDT Sun May 30 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 9 PM PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs 95 to 105 today, and
  100 to 110 on Memorial Day and Tuesday. Lows in the upper 60s 
  to mid 70s. 

* WHERE...Northern half of the Sacramento Valley and surrounding 
  foothills. 

* WHEN...Now through 9 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

CAZ017-019-067-311200-
/O.EXT.KSTO.EH.W.0001.210531T1900Z-210602T0400Z/
Southern Sacramento Valley-Northern San Joaquin Valley-Motherlode-
Including the cities of Sacramento, Stockton, Modesto, 
Grass Valley, and Jackson
1253 PM PDT Sun May 30 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT FROM NOON MONDAY TO 9 PM
PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to
  around 108 degrees, hottest on Memorial Day. Delta breeze
  cooling Tuesday for Sacramento and Stockton areas but still hot
  further inland.

* WHERE...Southern Sacramento Valley, Northern San Joaquin Valley 
  and surrounding foothills. 

* WHEN...From noon Monday to 9 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ018-311200-
/O.EXT.KSTO.EH.W.0001.210531T1900Z-210601T0400Z/
Carquinez Strait and Delta-
Including the city of Fairfield/Suisun
1253 PM PDT Sun May 30 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT FROM NOON TO 9 PM PDT
MONDAY...

* WHAT...Hot conditions with afternoon highs in the mid 90s to 
  around 105 degrees on Memorial Day. 

* WHERE...Carquinez Strait and Delta. 

* WHEN...From noon Monday to 9 PM PDT Monday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

483 
WWUS76 KSTO 311112
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
412 AM PDT Mon May 31 2021

...Excessive heat early this week...

.An early-season heat event will impact interior northern
California early this week due to high pressure in place over the
region. High temperatures will climb above the century mark 
across much of the Valley and lower foothills today. Expected 
highs across the Valley and foothills will range from 95 to 110 
degrees. These hot afternoon temperatures combined with warm 
overnight lows in the 60s to mid 70s will result in widespread 
moderate to high heat risk. The Delta Breeze will bring cooling 
to the Sacramento and Stockton areas on Tuesday while it will 
still remain hot further inland.

CAZ013-015-016-063-066-010000-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210602T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
412 AM PDT Mon May 31 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT
TUESDAY...

* WHAT...Hot conditions with afternoon highs 100 to 110 today and
  Tuesday. Lows in the upper 60s to mid 70s.

* WHERE...Northern half of the Sacramento Valley and surrounding
  foothills. 

* WHEN...Until 9 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ017-019-067-010000-
/O.CON.KSTO.EH.W.0001.210531T1900Z-210602T0400Z/
Southern Sacramento Valley-Northern San Joaquin Valley-Motherlode-
Including the cities of Sacramento, Stockton, Modesto, 
Grass Valley, and Jackson
412 AM PDT Mon May 31 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO
9 PM PDT TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to
  around 108 degrees, hottest today. Delta breeze cooling Tuesday
  for Sacramento and Stockton areas but still hot further 
  inland.

* WHERE...Southern Sacramento Valley, Northern San Joaquin Valley
  and surrounding foothills.

* WHEN...From noon today to 9 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ018-010000-
/O.CON.KSTO.EH.W.0001.210531T1900Z-210601T0400Z/
Carquinez Strait and Delta-
Including the city of Fairfield/Suisun
412 AM PDT Mon May 31 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT FROM NOON TODAY TO
9 PM PDT THIS EVENING...

* WHAT...Hot conditions with afternoon highs in the mid 90s to
  around 105 degrees. 

* WHERE...Carquinez Strait and Delta County.

* WHEN...From noon today to 9 PM PDT this evening.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

579 
WWUS76 KSTO 312137
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
237 PM PDT Mon May 31 2021

...Excessive heat early this week...

.An early-season heat event will continue to impact interior 
northern California early this week due to high pressure in place 
over the region. High temperatures will climb above the century 
mark across much of the Valley and lower foothills today. Expected
highs across the Valley and foothills will range from 95 to 110 
degrees. These hot afternoon temperatures combined with warm 
overnight lows in the 60s to upper 70s will result in widespread 
moderate to high heat risk. The Delta Breeze will bring cooling to
the Sacramento and Stockton areas on Tuesday while it will still 
remain hot further inland.

CAZ013-015>017-019-063-066-067-011300-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210602T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Southern Sacramento Valley-Northern San Joaquin Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-Motherlode-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Sacramento, Stockton, Modesto, 
Alder Springs, Paradise, Grass Valley, and Jackson
237 PM PDT Mon May 31 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT
TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to 
  around 108 degrees, hottest today. Delta breeze cooling 
  Tuesday for Sacramento and Stockton areas but still hot 
  further inland.

* WHERE...Southern Sacramento Valley, Northern San Joaquin 
  Valley and surrounding foothills.

* WHEN...From noon today to 9 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ018-010400-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210601T0400Z/
Carquinez Strait and Delta-
Including the city of Fairfield/Suisun
237 PM PDT Mon May 31 2021

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

* WHAT...Hot conditions with afternoon highs in the mid 90s to 
  around 105 degrees.

* WHERE...Carquinez Strait and Delta County.

* WHEN...From noon today to 9 PM PDT this evening.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

639 
WWUS76 KSTO 312259 CCA
NPWSTO

URGENT - WEATHER MESSAGE...CORRECTED
National Weather Service Sacramento CA
359 PM PDT Mon May 31 2021

...Excessive heat early this week...

.An early-season heat event will continue to impact interior 
northern California early this week due to high pressure in place 
over the region. High temperatures will climb above the century 
mark across much of the Valley and lower foothills today. Expected
highs across the Valley and foothills will range from 95 to 110 
degrees. These hot afternoon temperatures combined with warm 
overnight lows in the 60s to upper 70s will result in widespread 
moderate to high heat risk. The Delta Breeze will bring cooling to
the Sacramento and Stockton areas on Tuesday while it will still 
remain hot further inland.

CAZ013-015>017-019-063-066-067-011300-
/O.COR.KSTO.EH.W.0001.000000T0000Z-210602T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Southern Sacramento Valley-Northern San Joaquin Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-Motherlode-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Sacramento, Stockton, Modesto, 
Alder Springs, Paradise, Grass Valley, and Jackson
359 PM PDT Mon May 31 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT
TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to 
  around 108 degrees, hottest today. Delta breeze cooling 
  Tuesday for Sacramento and Stockton areas but still hot 
  further inland.

* WHERE...Sacramento Valley, Northern San Joaquin Valley and all
  surrounding valley foothill locations.

* WHEN...From noon today to 9 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ018-010400-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210601T0400Z/
Carquinez Strait and Delta-
Including the city of Fairfield/Suisun
359 PM PDT Mon May 31 2021

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

* WHAT...Hot conditions with afternoon highs in the mid 90s to 
  around 105 degrees.

* WHERE...Carquinez Strait and Delta County.

* WHEN...From noon today to 9 PM PDT this evening.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

852 
WWUS76 KSTO 010405
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
905 PM PDT Mon May 31 2021

...Excessive heat early this week...

.An early-season heat event will continue to impact interior
northern California through Tuesday due to high pressure in place
over the region. High temperatures will climb above the century 
mark across much of the Valley and lower foothills again. 
Expected highs across the Valley and foothills will range from 98
to 108 degrees. These hot afternoon temperatures combined with 
warm overnight lows in the 60s to upper 70s will result in 
widespread moderate to high heat risk. The Delta Breeze will bring
cooling to the Sacramento and Stockton areas on Tuesday while it 
will still remain hot further inland.

CAZ018-010515-
/O.EXP.KSTO.EH.W.0001.000000T0000Z-210601T0400Z/
Carquinez Strait and Delta-
Including the city of Fairfield/Suisun
905 PM PDT Mon May 31 2021

...EXCESSIVE HEAT WARNING HAS EXPIRED...

Temperatures continue to cool off in the Delta this evening
therefore the Excessive Heat Warning will be allowed to expire.
Moderate flow through the Delta all day on Tuesday will help to 
cool temperatures.

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

CAZ013-015>017-019-063-066-067-011215-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210602T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Southern Sacramento Valley-Northern San Joaquin Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-Motherlode-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Sacramento, Stockton, Modesto, 
Alder Springs, Paradise, Grass Valley, and Jackson
905 PM PDT Mon May 31 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT
TUESDAY...

* WHAT...Hot conditions with afternoon highs in the upper 90s to 
  around 108 degrees, hottest today. Delta breeze cooling 
  Tuesday for Sacramento and Stockton areas but still hot 
  further inland. 

* WHERE...Sacramento Valley, Northern San Joaquin Valley and all 
  surrounding valley foothill locations. 

* WHEN...From noon today to 9 PM PDT Tuesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Holiday travelers, hikers, 
  campers, and outdoor enthusiasts should prepare for the 
  excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

297 
WWUS76 KSTO 010946
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
246 AM PDT Tue Jun 1 2021

...Hot weather persists into mid-week...

.An early-season heat event will continue to impact interior
NorCal through at least Wednesday as high pressure remains in 
place over the region. Another day of triple digit heat is
expected across much of the Central Valley and surrounding
foothills resulting in moderate to high heat risk. Moderate to
high heat risk will retreat to the northern Sacramento Valley and
surrounding terrain on Wednesday as the Delta Breeze gradually
brings cooling further inland.

CAZ017-011100-
/O.CAN.KSTO.EH.W.0001.000000T0000Z-210602T0400Z/
Southern Sacramento Valley-
Including the city of Sacramento
246 AM PDT Tue Jun 1 2021

...EXCESSIVE HEAT WARNING IS CANCELLED...

$$

CAZ013-015-016-063-066-012315-
/O.EXT.KSTO.EH.W.0001.000000T0000Z-210603T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
246 AM PDT Tue Jun 1 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 9 PM PDT
WEDNESDAY...

* WHAT...Hot conditions today with highs around 100 to 110
  degrees. Mild again tonight with lows only in the upper 60s to
  upper 70s. Heat persists Wednesday with highs around 100 to 105.

* WHERE...Central and northern Sacramento Valley and surrounding
  foothill terrain.

* WHEN...Until 9 PM PDT Wednesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related
  illnesses such as heat exhaustion and heat stroke can occur due
  to prolonged exposure to hot temperatures. Most vulnerable
  include children, the elderly, those without air conditioning,
  and those with chronic ailments. Vacationers, hikers, campers,
  and outdoor enthusiasts should continue to exercise caution for
  the excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ019-067-012315-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210602T0400Z/
Northern San Joaquin Valley-Motherlode-
Including the cities of Stockton, Modesto, Grass Valley, 
and Jackson
246 AM PDT Tue Jun 1 2021

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

* WHAT...Hot conditions persist today with highs around 100 to
  105.

* WHERE...Northern San Joaquin Valley and Motherlode.

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

* IMPACTS...Widespread moderate to high heat risk. Heat-related
  illnesses such as heat exhaustion and heat stroke can occur due
  to prolonged exposure to hot temperatures. Most vulnerable
  include children, the elderly, those without air conditioning,
  and those with chronic ailments. Vacationers, hikers, campers,
  and outdoor enthusiasts should continue to exercise caution for
  the excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

849 
WWUS76 KSTO 012116
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
216 PM PDT Tue Jun 1 2021

...Hot weather to continue into mid-week...

.An early-season heat event will continue to impact interior
NorCal as high pressure remains in place over the region. This 
triple digit heat will result in moderate to high heat risk. The 
excessive heat will retreat to the northern Sacramento Valley and 
surrounding terrain on Wednesday as the Delta Breeze gradually 
brings cooling farther inland.

CAZ019-067-020400-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210602T0400Z/
Northern San Joaquin Valley-Motherlode-
Including the cities of Stockton, Modesto, Grass Valley, 
and Jackson
216 PM PDT Tue Jun 1 2021

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

* WHAT...Hot conditions persist today with highs around 100 to 
  105.

* WHERE...Northern San Joaquin Valley and Motherlode.

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

* IMPACTS...Widespread moderate to high heat risk. Heat-related
  illnesses such as heat exhaustion and heat stroke can occur due
  to prolonged exposure to hot temperatures. Most vulnerable
  include children, the elderly, those without air conditioning,
  and those with chronic ailments. Hikers, campers, and outdoor 
  enthusiasts should continue to exercise caution for the 
  excessive heat.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ013-015-016-063-066-020400-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210603T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
216 PM PDT Tue Jun 1 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT
WEDNESDAY...

* WHAT...Hot conditions today with highs around 100 to 110 
  degrees. Mild again tonight with lows only in the upper 60s to 
  upper 70s. Heat persists Wednesday with highs around 100 to 
  105.

* WHERE...Central and northern Sacramento Valley and surrounding 
  foothill terrain.

* WHEN...Until 9 PM PDT Wednesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related
  illnesses such as heat exhaustion and heat stroke can occur due
  to prolonged exposure to hot temperatures. Most vulnerable
  include children, the elderly, those without air conditioning,
  and those with chronic ailments. Hikers, campers, and outdoor 
  enthusiasts should continue to exercise caution for the 
  excessive heat.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

833 
WWUS76 KSTO 020406
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
906 PM PDT Tue Jun 1 2021

...Hot weather to continue into mid-week...

.An early-season heat event will continue to impact parts of 
interior NorCal on Wednesday. This triple digit heat will result 
in moderate to high heat risk. The excessive heat will retreat to 
the northern Sacramento Valley and surrounding terrain on 
Wednesday as the Delta Breeze gradually brings cooling farther 
inland.

CAZ019-067-020515-
/O.EXP.KSTO.EH.W.0001.000000T0000Z-210602T0400Z/
Northern San Joaquin Valley-Motherlode-
Including the cities of Stockton, Modesto, Grass Valley, 
and Jackson
906 PM PDT Tue Jun 1 2021

...EXCESSIVE HEAT WARNING HAS EXPIRED...

Temperatures continue to cool off this evening therefore the 
Excessive Heat Warning will be allowed to expire. Moderate flow 
through the Delta has brought cooler temperatures this evening to
the Southern Sacramento, Northern San Joaquin and Motherlode.

Interact with us via social media
www.facebook.com/nws.sacramento
www.twitter.com/nwssacramento

$$

CAZ013-015-016-063-066-021215-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210603T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
906 PM PDT Tue Jun 1 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT
WEDNESDAY...

* WHAT...Mild again tonight with lows only in the upper 60s to 
  upper 70s. Heat persists Wednesday with highs around 100 to 105.
  

* WHERE...Central and northern Sacramento Valley and surrounding 
  foothill terrain. 

* WHEN...Until 9 PM PDT Wednesday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Hikers, campers, and outdoor 
  enthusiasts should continue to exercise caution for the 
  excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

404 
WWUS76 KSTO 020856
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
156 AM PDT Wed Jun 2 2021

...Hot weather to continue this week...

.An early-season heat event will continue to impact the northern 
Sacramento Valley and surrounding terrain through Thursday. This 
triple digit heat will result in moderate to high heat risk. 

CAZ013-015-016-063-066-022300-
/O.EXT.KSTO.EH.W.0001.000000T0000Z-210603T1600Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
156 AM PDT Wed Jun 2 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 9 AM PDT THURSDAY...

* WHAT...Hot conditions today and Thursday with highs around 100
  to 105 degrees. Overnight lows range from the upper 60s to mid
  70s.

* WHERE...Central and northern Sacramento Valley and surrounding
  foothill terrain. 

* WHEN...Until 9 AM PDT Thursday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Hikers, campers, and outdoor 
  enthusiasts should continue to exercise caution for the 
  excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

642 
WWUS76 KSTO 020907
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
207 AM PDT Wed Jun 2 2021

...Hot weather to continue this week...

.An early-season heat event will continue to impact the northern
Sacramento Valley and surrounding terrain through Thursday. This
triple digit heat will result in moderate to high heat risk.

CAZ013-015-016-063-066-022300-
/O.EXT.KSTO.EH.W.0001.000000T0000Z-210604T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
207 AM PDT Wed Jun 2 2021

...EXCESSIVE HEAT WARNING NOW IN EFFECT UNTIL 9 PM PDT THURSDAY...

* WHAT...Hot conditions today and Thursday with highs around 100
  to 105 degrees. Overnight lows range from the upper 60s to mid
  70s.

* WHERE...Central and northern Sacramento Valley and surrounding
  foothill terrain.

* WHEN...Until 9 PM PDT Thursday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Hikers, campers, and outdoor 
  enthusiasts should continue to exercise caution for the 
  excessive heat. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

056 
WWUS76 KSTO 022056
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
156 PM PDT Wed Jun 2 2021

...Hot weather to continue into Thursday...

.The early-season prolonged heat event will continue to impact 
the northern Sacramento Valley and surrounding terrain through 
Thursday. This triple digit heat will result in moderate to high 
heat risk.

CAZ013-015-016-063-066-031400-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210604T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
156 PM PDT Wed Jun 2 2021

...EXCESSIVE HEAT WARNING REMAINS IN EFFECT UNTIL 9 PM PDT
THURSDAY...

* WHAT...Hot conditions today and Thursday with highs around 100 
  to 105 degrees. Overnight lows range from the upper 60s to mid 
  70s.

* WHERE...Central and northern Sacramento Valley and surrounding 
  foothill terrain.

* WHEN...Until 9 PM PDT Thursday.

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Hikers, campers, and outdoor 
  enthusiasts should continue to exercise caution for the 
  excessive heat.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

358 
WWUS76 KSTO 030902
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
202 AM PDT Thu Jun 3 2021

...Hot weather to continue through today...

.The early-season prolonged heat event will continue to impact the 
northern Sacramento Valley and surrounding terrain today. This 
triple digit heat will result in moderate to high heat risk.

CAZ013-015-016-063-066-032300-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210604T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
202 AM PDT Thu Jun 3 2021

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

* WHAT...Hot conditions today with highs around 100 to 105 
  degrees.

* WHERE...Central and northern Sacramento Valley and surrounding
  foothill terrain.

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

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Hikers, campers, and outdoor 
  enthusiasts should continue to exercise caution for the 
  excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

243 
WWUS76 KSTO 032104
NPWSTO

URGENT - WEATHER MESSAGE
National Weather Service Sacramento CA
204 PM PDT Thu Jun 3 2021

...Hot weather to continue through today...

.The early-season prolonged heat event will continue to impact
the northern Sacramento Valley and surrounding terrain into this 
evening. This triple digit heat will result in moderate to high 
heat risk.

CAZ013-015-016-063-066-040400-
/O.CON.KSTO.EH.W.0001.000000T0000Z-210604T0400Z/
Shasta Lake Area / Northern Shasta County-
Northern Sacramento Valley-Central Sacramento Valley-
Mountains Southwestern Shasta County to Western Colusa County-
Northeast Foothills/Sacramento Valley-
Including the cities of Shasta Dam, Redding, Red Bluff, Chico, 
Oroville, Marysville/Yuba City, Alder Springs, and Paradise
204 PM PDT Thu Jun 3 2021

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

* WHAT...Hot conditions today with highs around 100 to 105 
  degrees.

* WHERE...Central and northern Sacramento Valley and surrounding 
  foothill terrain.

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

* IMPACTS...Widespread moderate to high heat risk. Heat-related 
  illnesses such as heat exhaustion and heat stroke can occur 
  due to prolonged exposure to hot temperatures. Most vulnerable 
  include children, the elderly, those without air conditioning, 
  and those with chronic ailments. Hikers, campers, and outdoor 
  enthusiasts should continue to exercise caution for the 
  excessive heat.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

Area Forecast Discussion
National Weather Service Sacramento CA
352 AM PDT Fri May 28 2021

.SYNOPSIS...
Dry weather with temperatures near or above average through the
rest of the week. Hot conditions with moderate to high heat risk
develop late weekend into early next week.

&&

.DISCUSSION...
The short term forecast remains on track this morning. The upper
level trough over the PacNW will continue to lift into Canada
today. This will be the start of a warming trend as near zonal
flow is expected over NorCal today, with an eastern Pacific high
building over the ocean. Models continue to develop a weak
shortwave just off the coast of CA late today and into Saturday
which will then push east into the southern Great Basin late
Saturday into Sunday. The most noticeable feature with this
trough will be the potential for thunderstorm activity over the
Sierra, primarily from the Lake Tahoe region southward Saturday
afternoon and evening. Sounding profiles show long skinny CAPE
along with inverted V lower levels, gusty winds with some small
hail will be possible with any of the stronger cells that develop.
PWATS will also push to around 0.50" and with little to no wind
shear storm motion will be slow and brief heavy downpours can be
expected before cells collapse on themselves.

Heading into Sunday, the eastern Pacific High will nose into the
West Coast. Heights are forecast to be around 585-589 dm rising to
near 590-593 by mid-week. This will bring our first triple digit
heat to the region this year, with most Valley locations making
ito the upper 90s to near 100 on Sunday. Hot temperatures will
continue as we head into Monday as Tuesday. The majority of the
Valley will likely be sitting at the 100-108 degree range on
Monday, while the foothills and mountains ("coolest" at the
higher elevations) soar into the 80s to near 100 degrees. In
addition to these hot summer like conditions, overnight lows will
be toasty as well. Valley and adjacent foothill locations will
only fall into mid 60s to mid 70s. Thus the heat risk category
will be high from Sacramento to Redding. An Excessive Heat Watch
remains in effect Sunday afternoon and will continue into next
week as additional warming is expected.

If you have outdoor plans over the holiday weekend you will want
to be prepared for the heat. You can start practicing heat safety
now, by looking before you lock your vehicle, wearing sunscreen,
and staying hydrated to name a few tips. For more heat safety
practices visit weather.gov/safety/heat.

If you're wondering when does the Valley typically reach 100
degrees, check out these locations and dates.
Sacramento - June 18
Redding AP - June 4
Stockton - June 9
Modesto - June 11

&&
.EXTENDED DISCUSSION (Tuesday THROUGH Friday)...

5H Cluster Analysis indicates a positively-tilted ridge will prevail
over the Ern Pac into Norcal early next week before becoming more
neutrally-tilted as it builds inland by the middle of the week. A +2
to +3 standardized height and temperature anomaly is indicated by
the NAEFS from Mon-Wed for the STO forecast area with much of the
CWA dominated by a 2+ 850 mbs temp anomaly with temps in the mid 20s
Deg C range. Deterministic models forecast 500 mbs heights in the
588-591 dam range. This will be Norcal's initial widespread triple
digit heat wave of the season with the heat continuing into the
middle of the week. Max temps in the 105-110 degree range are
forecast across the Nrn portion of the Sac Vly Mon and Tue with Tue
likely to be the hottest day. Not yet convinced on the amount of
cooling in the Srn Sac Vly on Wed given the 5H cluster analysis and
the NAEFS mean temp anomaly, along with the deterministic models
maintaining strong ridging over our area. Modeling does trend to
climo sometimes too quickly. However, the Delta (Sea) Breeze may
respond to the 2 to 3 days of intense heating in the Valley and may
respond to the land-sea temp gradient resulting in a true Sea
Breeze. With weakening pressure to the N of our CWA, and the seaward
displacement of the Pacific High (ridge), this could be a "Class
IIa" Sea Breeze which barely affects max temps at all, especially
over areas farther away from the "Delta Influence". There is enough
evidence to suggest more noticeable cooling on Thu as the ridge axis
shifts into the Great Basin as a trof develops off the CA coast
along 130W. An Excessive Heat Watch is in effect into Tuesday
evening, and a heat product may be needed for the Nrn Sac Vly on Wed
with max temps still near/above 105. BTW most foothills and
populated mountain locales will be well into the 80s and 90s during
this heat wave. Overnight lows will also be mild/warm especially in
the thermal belts where they will only fall into the mid 70s. ECMWF
brings stronger cooling to the forecast area by Fri (Cluster 2)
while the other clusters still maintain a little stronger ridging
with the potential for near to slightly above triple digit heat in
the Nrn Sac Vly while onshore flow provides cooling for much of
the rest of the area.

Dry forecast for the area during the EFP with a low chance of
convection on the fringes of our forecast area on Thu. JHM

&&

.AVIATION...

VFR SKC-FEW250 conditions over interior NorCal thru 12z Sat. Light
to moderate winds over Norcal except for SWly gusts to 28 kt through
the Carquinez Strait and Delta areas, mainly afternoon into evening.

&&

.STO WATCHES/WARNINGS/ADVISORIES...
Excessive Heat Watch from Sunday afternoon through Tuesday
evening for Carquinez Strait and Delta-Central Sacramento Valley-
Motherlode-Northeast Foothills/Sacramento Valley-Northern
Sacramento Valley-Northern San Joaquin Valley-Shasta Lake Area /
Northern Shasta County-Southern Sacramento Valley-Western Plumas
County/Lassen Park.

&&