Excessive Heat Watch 2, NWS San Diego, CA

618 
WWUS76 KSGX 242132
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
232 PM PDT Thu Jun 24 2021

CAZ060>062-065-250545-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
Apple and Lucerne Valleys-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Victorville, Hesperia, Apple Valley, 
Indio, Palm Springs, Cathedral City, Palm Desert, 
Palm Desert Country, La Quinta, Coachella, Borrego Springs, 
Banning, and Desert Hot Springs
232 PM PDT Thu Jun 24 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with temperatures of 103 to 
  108 possible in the high deserts, and 110-115 in the southern 
  deserts.

* WHERE...Apple and Lucerne Valleys, the Coachella Valley, and the
  San Diego County Deserts...

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...Minimum temperatures will be high, 
  contributing to the heat stress.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CAZ048-250545-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
232 PM PDT Thu Jun 24 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with temperatures up to 103 
  possible.

* WHERE...San Bernardino and Riverside County Valleys-The Inland 
  Empire.

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...A heat advisory may be issued instead of 
  a warning if these currently forecast temperatures are 
  realized.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CAZ055-056-058-250545-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, 
Idyllwild-Pine Cove, Julian, and Pine Valley
232 PM PDT Thu Jun 24 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with temperatures up to 100 
  possible.

* WHERE...San Bernardino County Mountains, Riverside County 
  Mountains and San Diego County Mountains below 6,000 feet 
  elevation.

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...Temperatures up to 100 are possible at 
  3,000 feet elevation and up to 90 at 6,000 feet elevation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego

419 
WWUS76 KSGX 250334
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
834 PM PDT Thu Jun 24 2021

CAZ060>062-065-251300-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
Apple and Lucerne Valleys-Coachella Valley-
San Diego County Deserts-San Gorgonio Pass Near Banning-
Including the cities of Victorville, Hesperia, Apple Valley, 
Indio, Palm Springs, Cathedral City, Palm Desert, 
Palm Desert Country, La Quinta, Coachella, Borrego Springs, 
Banning, and Desert Hot Springs
834 PM PDT Thu Jun 24 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with temperatures of 103 to 
  108 possible in the high deserts, and 110-115 in the southern 
  deserts.

* WHERE...Apple and Lucerne Valleys, the Coachella Valley, and 
  the San Diego County Deserts.

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat 
  stress.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay out of the
midday sun, and check up on relatives and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CAZ048-251300-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
834 PM PDT Thu Jun 24 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with temperatures up to 103 
  possible.

* WHERE...San Bernardino and Riverside County Valleys-The Inland 
  Empire.

* WHEN...From Sunday morning through Monday 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...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay out of the
midday sun, and check up on relatives and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CAZ055-056-058-251300-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, 
Idyllwild-Pine Cove, Julian, and Pine Valley
834 PM PDT Thu Jun 24 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with temperatures up to 100 
  possible.

* WHERE...San Bernardino County Mountains, Riverside County 
  Mountains and San Diego County Mountains below 6,000 feet 
  elevation.

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...Temperatures up to 100 are possible at 
  3,000 feet elevation and up to 90 at 6,000 feet elevation.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to drink plenty of fluids, stay out of the
midday sun, and check up on relatives and neighbors.

Young children and pets should never be left unattended in
vehicles under any circumstances. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego

287 
WWUS76 KSGX 250911
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
211 AM PDT Fri Jun 25 2021

CAZ060-252245-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
211 AM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with high temperatures of 104
  to 112 possible.

* WHERE...Apple and Lucerne Valleys.

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat 
  stress.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CAZ061-062-252245-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
Coachella Valley-San Diego County Deserts-
Including the cities of Indio, Palm Springs, Cathedral City, 
Palm Desert, Palm Desert Country, La Quinta, Coachella, 
and Borrego Springs
211 AM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with high temperatures of 112
  to 118 possible.

* WHERE...San Diego County Deserts and Coachella Valley.

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat 
  stress.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CAZ065-252245-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
San Gorgonio Pass Near Banning-
Including the cities of Banning and Desert Hot Springs
211 AM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with high temperatures of 104
  to 112 possible.

* WHERE...San Gorgonio Pass Near Banning.

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat 
  stress.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CAZ048-252245-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
211 AM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with high temperatures of 98
  to 108 possible.

* WHERE...San Bernardino and Riverside County Valleys-The Inland 
  Empire.

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat
  stress.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CAZ058-252245-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
San Diego County Mountains-
Including the cities of Julian and Pine Valley
211 AM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING...

* WHAT...Dangerously hot conditions with high temperatures mostly
  in the 90s possible.

* WHERE...San Diego County Mountains.

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat 
  stress.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

CAZ055-056-252245-
/O.CON.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
San Bernardino County Mountains-Riverside County Mountains-
Including the cities of Crestline, Lake Arrowhead, 
and Idyllwild-Pine Cove
211 AM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WATCH REMAINS IN EFFECT FROM SUNDAY MORNING
THROUGH MONDAY EVENING BELOW 6000 FEET...

* WHAT...Dangerously hot conditions with high temperatures in the
  90s to 102 below 6000 feet possible.

* WHERE...Riverside County Mountains and San Bernardino County 
  Mountains below 6000 feet.

* WHEN...From Sunday morning through Monday evening.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat 
  stress.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Monitor the latest forecasts and warnings for updates on this
situation. Be prepared to 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. This is especially true during
warm or hot weather when car interiors can reach lethal
temperatures in a matter of minutes.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego

17

667 
WWUS76 KSGX 252005
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
105 PM PDT Fri Jun 25 2021

CAZ060-260500-
/O.UPG.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
/O.NEW.KSGX.EH.W.0003.210627T1700Z-210629T0400Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
105 PM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM SUNDAY TO 9 PM PDT
MONDAY...

* WHAT...Dangerously hot conditions with temperatures up to 109 
  expected.

* WHERE...Apple and Lucerne Valleys.

* WHEN...From 10 AM Sunday to 9 PM PDT Monday.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat
  stress.

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.

&&

$$

CAZ061-062-260500-
/O.UPG.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
/O.NEW.KSGX.EH.W.0003.210627T1700Z-210629T0400Z/
Coachella Valley-San Diego County Deserts-
Including the cities of Indio, Palm Springs, Cathedral City, 
Palm Desert, Palm Desert Country, La Quinta, Coachella, 
and Borrego Springs
105 PM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM SUNDAY TO 9 PM PDT
MONDAY...

* WHAT...Dangerously hot conditions with temperatures up to 116 
  expected.

* WHERE...Coachella Valley and San Diego County Deserts.

* WHEN...From 10 AM Sunday to 9 PM PDT Monday.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat
  stress.

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.

&&

$$

CAZ065-260500-
/O.UPG.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
/O.NEW.KSGX.EH.W.0003.210627T1700Z-210629T0400Z/
San Gorgonio Pass Near Banning-
Including the cities of Banning and Desert Hot Springs
105 PM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM SUNDAY TO 9 PM PDT
MONDAY...

* WHAT...Dangerously hot conditions with temperatures up to 112 
  expected.

* WHERE...San Gorgonio Pass Near Banning.

* WHEN...From 10 AM Sunday to 9 PM PDT Monday.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat
  stress.

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.

&&

$$

CAZ058-260500-
/O.UPG.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
/O.NEW.KSGX.EH.W.0003.210627T1700Z-210629T0400Z/
San Diego County Mountains-
Including the cities of Julian and Pine Valley
105 PM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM SUNDAY TO 9 PM PDT
MONDAY...

* WHAT...Dangerously hot conditions with temperatures up to 100 
  expected.

* WHERE...San Diego County Mountains.

* WHEN...From 10 AM Sunday to 9 PM PDT Monday.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat
  stress.

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.

&&

$$

CAZ055-056-260500-
/O.UPG.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
/O.NEW.KSGX.EH.W.0003.210627T1700Z-210629T0400Z/
San Bernardino County Mountains-Riverside County Mountains-
Including the cities of Crestline, Lake Arrowhead, 
and Idyllwild-Pine Cove
105 PM PDT Fri Jun 25 2021

...EXCESSIVE HEAT WARNING IN EFFECT FROM 10 AM SUNDAY TO 9 PM PDT
MONDAY...

* WHAT...Dangerously hot conditions with temperatures up to 100 
  expected.

* WHERE...San Bernardino County Mountains and Riverside County 
  Mountains.

* WHEN...From 10 AM Sunday to 9 PM PDT Monday.

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

* ADDITIONAL DETAILS...Warm nights will contribute to the heat
  stress.

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.

&&

$$

CAZ048-260500-
/O.UPG.KSGX.EH.A.0002.210627T1700Z-210629T0500Z/
/O.NEW.KSGX.HT.Y.0002.210627T1700Z-210629T0400Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
105 PM PDT Fri Jun 25 2021

...HEAT ADVISORY IN EFFECT FROM 10 AM SUNDAY TO 9 PM PDT MONDAY...

* WHAT...Temperatures up to 104 expected.

* WHERE...San Bernardino and Riverside County Valleys-The Inland 
  Empire.

* WHEN...From 10 AM Sunday to 9 PM PDT Monday.

* IMPACTS...Hot temperatures may cause heat illnesses to occur.

* ADDITIONAL DETAILS...Warm nights will contribute to the heat
  stress.

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 San Diego CA
824 AM PDT Thu Jun 24 2021

.SYNOPSIS...
Building high pressure to the north will bring warming and drying
through the weekend. The marine layer will gradually become
shallower with night and morning low clouds and fog mostly
limited to coastal areas. High temperatures will warm through the
weekend. With high temperatures for inland areas of around 5 to 10
degrees by Sunday, there is the potential for excessive heat for
inland areas for Sunday and Monday. Some monsoonal moisture is
expected to gradually increase next week, bringing chances for
afternoon thunderstorms in the mountains and deserts.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

The marine layer rebounded rather nicely overnight after
yesterday's weak and temporary disruption from showers and
thunderstorms. The base of the weakened marine inversion is
around 1800 feet and the cloud deck is relatively thin. These
factors should lead to a relatively full clearing this morning.
Leftover moisture flecked the skies with altocumulus clouds this
morning, and a few cumulus might form over mountains today, but
other than that, fair and seasonal weather. A low pressure trough
along the CA coast will slowly weaken as a monster ridge of high
pressure builds over the Pacific Northwest this weekend. Actual
forecast temperatures for some spots like Portland on Sunday will
exceed highest all-time records. In SoCal the ridge is sandwiched
between lows over the ocean and the interior Southwest. So it is
weaker here, but will still give us a noticeable warming trend
this weekend. Low clouds and fog will continue nights and mornings
near the coast - not as far inland as today. Sunday and Monday
appear to be the hottest days inland under that building high
pressure. Ensemble/blended guidance has lower desert temps ranging
from 112 to 116 and high desert 102 to 110 those days, putting
the heat risk right on the cusp of a heat warning. Some spots will
exceed 100 in the Inland Empire. With the clockwise flow around
the ridge to our north, easterly flow will set up over SoCal next
week. Moisture increases gradually each day through about
Wednesday. Right now we have a slight chance of afternoon
thunderstorms over mountains/deserts starting Monday, but
increasing Tuesday and Wednesday. It might start backing off
Thursday and Friday, or simply continue. The added humidity and
clouds will trim temperatures a bit off the high end, but keep
them high on the low end. The thunderstorm potential will
fluctuate within a large range of time-space possibilites, but for
now they are confined to mountains/deserts and afternoons. The
marine layer will go more shallow and disrupted by the monsoon
flow, but probably hold its position in patchier form.

&&

.AVIATION...
241500Z...Coast/Valleys...Stratus with bases 1500-1900 ft MSL and
tops to 2100 ft MSL will gradually clear inland/valleys areas 15-
17Z, with coastal areas likely seeing CIGS persist through 18-20Z at
least. Possibility of coastal terminals remaining BKN/OVC most of
the afternoon as well, with periods of clearing being most likely 20-
00Z. Low cloud coverage will begin to increase after 00Z, with bases
starting between 1200-1700 ft MSL. San Diego coastal terminals are
likely to have CIGS by 03Z, possibly earlier, with KSNA delayed by
~2-4 hours. Approximately 50% chance of CIGS at KONT 11-15Z Fri.

Mountains/Deserts...Scattered clouds at/above 10,000 ft MSL and
unrestricted vis through Fri afternoon. NW to W winds with surface
gusts 25-35 kt developing across the desert mountain slopes, below
the passes, and into the deserts after 21Z, weakening tonight. MOD
up/downdrafts possible over and E of the mountains.

&&

.MARINE...
No hazardous marine conditions are expected through Monday.

&&

.BEACHES...
A Beach Hazards Statement for Orange County remains in effect
through tonight. High tides around 7 feet combined with elevated
surf could produce minor beach erosion and tidal flooding. Large
tidal swings will lead to an increased risk of strong rip currents,
especially during outgoing tides. Tides and surf lower Friday.

&&

.FIRE WEATHER...
High pressure to the north will bring warming and drying through
the weekend with the marine layer becoming shallower after Friday.
Lowest daytime humidity in the deserts will fall to 10 to 15
percent today and around 10 percent for Friday through the
weekend. That low humidity combined with gusty southwest to west
winds in the mountains and deserts each afternoon and evening will
result in elevated fire weather conditions for the deserts onto
the desert slopes of the mountains each afternoon.

For the early and middle part of next week, monsoonal moisture
may begin to spread into the area with a gradual recovery in
humidity through mid week. This could also bring a chance for
thunderstorms, mainly for the mountains and deserts and mainly
during the afternoon and early evening each day. The potential for
dry lightning strikes would be greater initially with the moisture
more limited. The potential for wetting rainfall could then
increase depending on the amount of moisture influx.

&&

.SKYWARN...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement through this evening for Orange County
     Coastal Areas.

PZ...NONE.

&&

PUBLIC...MM
FIRE WEATHER...17
AVIATION/MARINE/BEACHES...Rodriguez

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN DIEGO CA
859 AM PDT THU JUN 24 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0230 PM     WILDFIRE         5 SSE RAINBOW           33.35N 117.10W
06/23/2021                   SAN DIEGO          CA   FIRE DEPT/RESCUE

            MESA FIRE STARTED NEAR 2:30 PM SOUTHWEST OF
            PALA NEAR HIGHWAY 76. AS OF 8 AM JUNE 24TH,
            CALFIRE REPORTS THE FIRE HAS BURNED 350
            ACRES AND IS 10% CONTAINED. FORWARD RATE OF
            SPREAD STOPPED. BRIEF EVACUATION WARNINGS
            WERE ISSUED ON THE 23RD, AND HIGHWAY 76
            TEMPORARY CLOSED. NO REPORTS OF DAMAGED
            STRUCTURES.

&&

BR

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE SAN DIEGO CA
927 AM PDT THU JUN 24 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0300 PM     LIGHTNING        3 SE PALM SPRINGS       33.79N 116.47W
06/23/2021                   RIVERSIDE          CA   EMERGENCY MNGR

            EMERGENCY MANAGER RELAYED A REPORT OF A TREE
            STRUCK BY LIGHTNING IN CATHEDRAL CITY AS
            REPORTED BY KESQ. RADAR DETECTED RAIN CELLS
            AND LIGHTNING WAS ALSO DETECTED IN THE
            COACHELLA VALLEY. THE CATHEDRAL CITY FIRE
            DEPARTMENT RECEIVED REPORTS AT 36000 BLOCK
            OF BANKSIDE DRIVE. THE PALM TREE WAS
            IMMEDIATELY NEXT TO AT LEAST 2 HOME
            RESIDENCES.

&&

AOT