944
WWUS75 KTWC 231659
NPWTWC
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
959 AM MST TUE JUN 23 2026
AZZ504-506-507-509-241200-
/O.EXT.KTWC.XH.W.0002.260623T1800Z-260626T0300Z/
TUCSON METRO AREA-SOUTHEAST PINAL COUNTY-UPPER SAN PEDRO RIVER
VALLEY-UPPER GILA RIVER VALLEY-
INCLUDING THE CITIES OF ORACLE, GREEN VALLEY, TUCSON, CLIFTON,
MARANA, SIERRA VISTA, VAIL, MAMMOTH, BENSON, AND SAFFORD
959 AM MST TUE JUN 23 2026
..EXTREME HEAT WARNING NOW IN EFFECT UNTIL 8 PM MST THURSDAY
* WHAT...DANGEROUSLY HOT CONDITIONS WITH AFTERNOON TEMPERATURES OF
107 TO 111 DEGREES. LOCALIZED MAJOR HEAT RISK.
* WHERE...SOUTHEAST PINAL COUNTY, TUCSON METRO AREA, UPPER GILA RIVER
VALLEY, AND UPPER SAN PEDRO RIVER VALLEY (MAINLY NORTH OF BENSON).
* WHEN...UNTIL 8 PM MST THURSDAY.
* 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.
GLZ
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