National Weather Service

Watches, Warnings & Advisories
NWS Homepage

One product issued by NWS for: San Bernardino CA
Share |

Excessive Heat Warning

National Weather Service SAN DIEGO CA
254 AM PDT Fri Aug 14 2020

San Bernardino and Riverside County Valleys-The Inland Empire-
San Diego County Valleys-San Bernardino County Mountains-
Riverside County Mountains-Santa Ana Mountains and Foothills-
San Diego County Mountains-Apple and Lucerne Valleys-
Coachella Valley-San Diego County Deserts-
San Gorgonio Pass Near Banning-Orange County Inland Areas-
Including the cities of Riverside, San Bernardino, Ontario,
Moreno Valley, Fontana, Rancho Cucamonga, Corona, Escondido,
El Cajon, San Marcos, La Mesa, Santee, Poway, Crestline, Julian,
Pine Valley, Victorville, Hesperia, Apple Valley, Indio,
Palm Springs, Cathedral City, Palm Desert, Palm Desert Country,
La Quinta, Coachella, Borrego Springs, Banning,
Desert Hot Springs, Santa Ana, Anaheim, Garden Grove, Orange,
Fullerton, and Mission Viejo
254 AM PDT Fri Aug 14 2020


* WHAT...Dangerously hot conditions with high temperatures from
  100 to 120, hottest in the deserts and Inland Empire.

* WHERE...Deserts, valleys, mountains below 5000 feet, and
  inland Orange County.

* WHEN...From noon today 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...High temperatures expected.
  Inland Empire...............102 to 110.
  Inland Orange County.........95 to 102.
  High Deserts................102 to 110.
  San Diego County Valleys.....95 to 106.
  Mountains below 5000 feet....92 to 102.
  Lower Deserts...............115 to 120.


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.



For more information from the National Weather Service visit

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
Page last modified: May 16, 2007
NATIONAL WEATHER SERVICE: for Safety, for Work, for Fun - FOR LIFE