34°14'S / 117°11'Z / Výška 1595 m / 12:19 20.03.2026, America/Los_Angeles (UTC-7)
Od: 20.03.2026, 02:25
Do: 20.03.2026, 16:00
* WHAT...Dangerously hot temperatures climbing to near-30 degrees above seasonal normals.
* WHERE...Portions of northwest Arizona, southeast California, and southern Nevada.
* WHEN...Until 8 PM PDT /8 PM MST/ Sunday.
* IMPACTS...Heat-related illnesses increase significantly during extreme heat events.
* ADDITIONAL DETAILS...Extreme early-season heat coupled with high tourism rates will make this heat very dangerous, particularly for those not acclimated to the heat and/or traveling from cooler climates. Numerous daily and monthly heat records are in jeopardy through at least Sunday.
San Bernardino
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.
Take extra precautions when outside. Wear lightweight and
loose-fitting clothing. Try to limit strenuous activities to early
morning or evening. Take action when you see symptoms of heat
exhaustion and heat stroke.
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.
Monitor the latest forecasts and warnings for updates.
NWS Las Vegas NV
20.03.2026, 02:25
Od: 20.03.2026, 04:27
Do: 20.03.2026, 14:15
* WHAT...Temperatures 82 to 95 degrees below 6500 ft.
* WHERE...Riverside County Mountains, San Bernardino County Mountains, and San Diego County Mountains.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
San Bernardino,San Bernardino County MountainsDrink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
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.NWS San Diego CA20.03.2026, 04:27Od: 20.03.2026, 04:27
Do: 20.03.2026, 14:15
* WHAT...Temperatures 96 to 102.
* WHERE...San Bernardino and Riverside County Valleys-The Inland Empire.
* WHEN...Until 8 PM PDT this evening.
* IMPACTS...Hot temperatures may cause heat illnesses.
* ADDITIONAL DETAILS...Overnight low temperatures in foothill locations will only fall into the lower to mid 70s limiting relief from the heat.
San BernardinoDrink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
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.NWS San Diego CA20.03.2026, 04:27