34°25'N / 117°38'O / Altitude 1266 m / 19:44 27/07/2026, America/Los_Angeles (UTC-7)
depuis : 27/07/2026, 04:47
à: 27/07/2026, 20:00
* WHAT...Dangerously hot conditions expected. Afternoon temperatures in the desert valleys will climb into the 108 to 114 degree range. Temperatures in the Colorado River Valley may exceed 115 degrees. Temperatures in the lower elevations of Death Valley will range from 115 to 120 degrees. Overnight lows generally 80 to 95 degrees. * WHERE...Portions of northwest Arizona, southeast California, and southern Nevada including the Greater Mojave Desert region. * WHEN...Until 8 PM PDT /8 PM MST/ this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events.
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
27/07/2026, 04:47depuis : 27/07/2026, 13:56
à: 27/07/2026, 20:00
* WHAT...Dangerously hot conditions. Afternoon temperatures 105 to 115. Major Heat Risk. * WHERE...Mostly rural portions of southwest Arizona and southeast California, including Joshua Tree National Park. * WHEN...Until 8 PM MST /8 PM PDT/ this evening. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
San BernardinoAn Extreme Heat Warning means that a period of very hot temperatures,
even by local standards, will occur. Actions should be taken to
lessen the impact of the extreme heat.
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 and
drink plenty of water.
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.
Public cooling shelters are available in some areas. Consult county
officials for more details.NWS Phoenix AZ27/07/2026, 13:56