929
WWUS75 KTWC 221930
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
1230 PM MST Fri Aug 22 2025

AZZ504>506-230330-
/O.EXT.KTWC.XH.W.0006.000000T0000Z-250825T0300Z/
Tucson Metro Area-South Central Pinal County-Southeast Pinal
County-
Including the cities of Green Valley, Picacho Peak State Park,
Marana, Vail, Tucson, Oracle, and Mammoth
1230 PM MST Fri Aug 22 2025

...EXTREME HEAT WARNING NOW IN EFFECT UNTIL 8 PM MST SUNDAY...

* WHAT...Dangerously hot conditions with temperatures up to 105
  across eastern Pima county and southeastern Pinal county leading
  to Major Heat Risk.

* WHERE...South Central Pinal County, Southeast Pinal County, and
  Tucson Metro Area.

* WHEN...Until 8 PM MST Sunday.

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

* ADDITIONAL DETAILS...Major Heat Risk is when heat will affect
  anyone without cooling or hydration as well as health systems and
  industries.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

&&

$$

AZZ501>503-507-509-230300-
/O.CON.KTWC.XH.W.0006.000000T0000Z-250823T0300Z/
Western Pima County-Tohono O`odham Nation-Upper Santa Cruz River
Valley/Altar Valley-Upper San Pedro River Valley-Upper Gila River
Valley-
Including the cities of Organ Pipe Cactus N.M., Sells, Benson,
Nogales, Safford, Ajo, Clifton, and Sierra Vista
1230 PM MST Fri Aug 22 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST THIS
EVENING...

* WHAT...Dangerously hot conditions with temperatures up to 105
  degrees leading to Major Heat Risk.

* WHERE...Tohono O`odham Nation, Upper Gila River Valley, Upper San
  Pedro River Valley, Upper Santa Cruz River Valley/Altar Valley,
  and Western Pima County.

* WHEN...Until 8 PM MST this evening.

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

* ADDITIONAL DETAILS...Major Heat Risk is when heat will affect
  anyone without cooling or hydration as well as health systems and
  industries.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

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.

&&

$$

KM