34°11'N / 114°13'W / Altitude 115 m / 23:53 2026/03/18, America/Phoenix (UTC-7)
From: 2026/03/18, 13:43
To: 2026/03/19, 02:00
* WHAT...Dangerously hot conditions. Afternoon temperatures 100 to 109. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
* WHERE...Portions of southwest Arizona and southeast and southern California.
* WHEN...Until 8 PM MST /8 PM PDT/ Sunday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events.
Parker Valley,La Paz
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.
NWS Phoenix AZ
2026/03/18, 13:43From: 2026/03/18, 13:43
To: 2026/03/19, 02:00
* WHAT...Dangerously hot conditions. Afternoon temperatures 100 to 108 expected. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
* WHERE...Portions of south central and southwest Arizona.
* WHEN...From 11 AM Thursday to 8 PM MST Sunday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events.
La PazAn 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 AZ2026/03/18, 13:43