514
WWUS75 KTWC 040848
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
148 AM MST Mon Aug 4 2025

AZZ501>507-509-515-042300-
/O.CON.KTWC.XH.W.0005.000000T0000Z-250809T0300Z/
Western Pima County-Tohono O`odham Nation-Upper Santa Cruz River
Valley/Altar Valley-Tucson Metro Area-South Central Pinal County-
Southeast Pinal County-Upper San Pedro River Valley-Upper Gila
River Valley-Baboquivari Mountains-
Including the cities of Ajo, Organ Pipe Cactus N.M., Green
Valley, Oracle, Nogales, Marana, Picacho Peak State Park, Sierra
Vista, Benson, Mammoth, Clifton, Kitt Peak, Tucson, Safford,
Vail, and Sells
148 AM MST Mon Aug 4 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 8 PM MST FRIDAY...

* WHAT...Dangerously hot conditions with temperatures up to 115
  Wednesday and Thursday across portions of Pima County and
  south-central Pinal County. Otherwise temperatures will typically
  range from 102 to 111.

* WHERE...South Central Pinal County, Southeast Pinal County, Tohono
  O`odham Nation, Tucson Metro Area, 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 Friday.

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

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.

Do not leave young children and pets in unattended vehicles. Car
interiors will reach lethal temperatures in a matter of minutes.

&&

$$

AZZ508-042300-
/O.CON.KTWC.XH.W.0005.250805T1700Z-250809T0300Z/
Eastern Cochise County below 5000 feet-
Including the cities of Willcox and Douglas
148 AM MST Mon Aug 4 2025

...EXTREME HEAT WARNING REMAINS IN EFFECT FROM 10 AM TUESDAY TO 8 PM
MST FRIDAY...

* WHAT...Dangerously hot conditions with temperatures of 101 to 105.

* WHERE...Eastern Cochise County below 5000 feet.

* WHEN...From 10 AM Tuesday to 8 PM MST Friday.

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

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.

&&

$$

GEL