33°25'N / 111°56'W / Altitude 353 m / 01:06 2026/03/19, America/Phoenix (UTC-7)
From: 2026/03/19, 11:00
To: 2026/03/19, 15:00
* WHAT...Dangerously hot conditions. Afternoon temperatures 100 to 107 expected. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
* WHERE...The Northwest Valley of the Phoenix Metro Area, The East Valley of the Phoenix Metro Area, Buckeye/Avondale, Deer Valley, Central Phoenix, North Phoenix/Glendale, Scottsdale/Paradise Valley, South Mountain/Ahwatukee, and Southeast Valley/Queen Creek.
* WHEN...From 11 AM Thursday to 8 PM MST Sunday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events.
* ADDITIONAL DETAILS...In Maricopa County, call 2-1-1 if you need help finding resources. More information at https://www.maricopa.gov/heat.
Maricopa,East Valley
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.
Recognize the signs and symptoms of heat-related illness. Early
signs include thirst and muscle cramps. Heat exhaustion may include:
cool, moist, pale skin; headache; dizziness; weakness or exhaustion;
nausea. The most serious illness is heat stroke, which may include:
vomiting; confusion; throbbing headache; decreased alertness or loss
of consciousness; high body temperature (above 105F); hot, dry skin;
rapid, weak pulse; rapid, shallow breathing; seizures.
NWS Phoenix AZ
2026/03/19, 00:06From: 2026/03/19, 11:00
To: 2026/03/19, 15:00
* WHAT...Dangerously hot conditions. Afternoon temperatures 97 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.
MaricopaAn 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.
Recognize the signs and symptoms of heat-related illness. Early
signs include thirst and muscle cramps. Heat exhaustion may include:
cool, moist, pale skin; headache; dizziness; weakness or exhaustion;
nausea. The most serious illness is heat stroke, which may include:
vomiting; confusion; throbbing headache; decreased alertness or loss
of consciousness; high body temperature (above 105F); hot, dry skin;
rapid, weak pulse; rapid, shallow breathing; seizures.NWS Phoenix AZ2026/03/19, 00:06From: 2026/03/19, 11:00
To: 2026/03/19, 15:00
* WHAT...Dangerously hot conditions. Afternoon temperatures 95 to 106 expected. Overexposure can cause heat cramps and heat exhaustion to develop and, without intervention, can lead to heat stroke.
* WHERE...Apache Junction/Gold Canyon, Cave Creek/New River, Dripping Springs, Fountain Hills/East Mesa, New River Mesa, Rio Verde/Salt River, and Superior.
* WHEN...From 11 AM Thursday to 8 PM MST Sunday.
* IMPACTS...Heat related illnesses increase significantly during extreme heat events.
MaricopaAn 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.
Recognize the signs and symptoms of heat-related illness. Early
signs include thirst and muscle cramps. Heat exhaustion may include:
cool, moist, pale skin; headache; dizziness; weakness or exhaustion;
nausea. The most serious illness is heat stroke, which may include:
vomiting; confusion; throbbing headache; decreased alertness or loss
of consciousness; high body temperature (above 105F); hot, dry skin;
rapid, weak pulse; rapid, shallow breathing; seizures.NWS Phoenix AZ2026/03/19, 00:06