199
WWUS75 KTWC 311910
NPWTWC

URGENT - WEATHER MESSAGE
National Weather Service Tucson AZ
1210 PM MST Thu Jul 31 2025

AZZ501>507-509-515-011200-
/O.CON.KTWC.XH.W.0005.250801T1700Z-250804T0300Z/
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 Tucson, Green Valley, Clifton, Oracle,
Picacho Peak State Park, Sierra Vista, Marana, Safford, Kitt
Peak, Sells, Mammoth, Nogales, Benson, Ajo, Vail, and Organ Pipe
Cactus N.M.
1210 PM MST Thu Jul 31 2025

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

* WHAT...Dangerously hot conditions with temperatures up to 110
  expected.

* WHERE...Baboquivari Mountains, 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...From 10 AM Friday to 8 PM MST Sunday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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.

&&

$$

JT