221
WWUS75 KTWC 210628
NPWTWC
URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE TUCSON AZ
1128 PM MST THU NOV 20 2025
AZZ503-507>509-211600-
/O.CON.KTWC.FZ.W.0009.251121T0900Z-251121T1600Z/
UPPER SANTA CRUZ RIVER VALLEY/ALTAR VALLEY-UPPER SAN PEDRO RIVER
VALLEY-EASTERN COCHISE COUNTY BELOW 5000 FEET-UPPER GILA RIVER
VALLEY-
INCLUDING THE CITIES OF WILLCOX, BENSON, DOUGLAS, SAFFORD, SIERRA
VISTA, CLIFTON, AND NOGALES
1128 PM MST THU NOV 20 2025
..FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM MST FRIDAY
* WHAT...SUB-FREEZING TEMPERATURES BETWEEN 23 TO 32 DEGREES EXPECTED.
* WHERE...EASTERN COCHISE COUNTY BELOW 5000 FEET, SULPHUR SPRINGS
VALLEY, UPPER SAN PEDRO RIVER VALLEY, AND UPPER SANTA CRUZ RIVER
VALLEY/ALTAR VALLEY.
* WHEN...UNTIL 9 AM MST FRIDAY.
* IMPACTS...FROST AND FREEZE CONDITIONS COULD KILL CROPS, OTHER
SENSITIVE VEGETATION AND POSSIBLY DAMAGE UNPROTECTED OUTDOOR
PLUMBING.
* ADDITIONAL DETAILS...PROBABILITY OF SUBFREEZING TEMPERATURES FOR
SELECT LOCATIONS ACROSS THE WARNED AREA:
-WILLCOX: 95%
-BENSON: 90%
-PATAGONIA: 90%
-RIO RICO: 90%
-SONOITA: 85%
-SAINT DAVID: 90%
-ELFRIDA: 85%
-SUNIZONA: 85%
-DOUGLAS: 70%
-SAN SIMON: 80%
PRECAUTIONARY/PREPAREDNESS ACTIONS...
TAKE STEPS NOW TO PROTECT TENDER PLANTS FROM THE COLD.
TO PREVENT WATER PIPES FROM FREEZING; WRAP OR DRAIN OR ALLOW THEM TO
DRIP SLOWLY.
AWH
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