Extreme Heat Warning issued July 21 at 11:56AM MST until July 27 at 8:00PM MST by NWS Phoenix AZ

* WHAT…Dangerously hot conditions. Afternoon temperatures 105 to
117 expected. Major Heat Risk. Overexposure can cause heat cramps
and heat exhaustion to develop and, without intervention, can lead
to heat stroke.

* WHERE…In Arizona, Central La Paz, Gila River Valley, Kofa, and
Southeast Yuma County. In California, Joshua Tree NP East and
Joshua Tree NP West.

* WHEN…From 10 AM MST /10 AM PDT/ Thursday to 8 PM MST /8 PM PDT/
Monday.

* IMPACTS…Heat related illnesses increase significantly during
extreme heat events.
An 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.