Alerts from NWS Tucson AZ (UNOFFICIAL)
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Alerts from NWS Tucson AZ (UNOFFICIAL)
@tus.nws-bot.us
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Unofficial bot sharing alerts from NWS Tucson AZ.

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Freeze Warning issued December 5 at 3:51AM MST until December 5 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Sub-freezing temperatures between 29 and 32 degrees expected in the upper Gila River valley and in the upper Santa Cruz River Valley/Altar Valley. Sub-freezing temperatures between 25 and 29 degrees expected in the upper San Pedro Valley and Sulphur Springs Valley. * WHERE...Eastern Cochise County below 5000 feet, Upper Gila River Valley, Upper San Pedro River Valley, and Upper Santa Cruz River Valley/Altar Valley. * WHEN...Until 9 AM MST this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
December 5, 2025 at 11:00 AM
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Freeze Warning issued December 4 at 12:43PM MST until December 5 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Sub-freezing temperatures between 29 and 32 degrees expected in the upper Gila River valley and in the upper Santa Cruz River Valley/Altar Valley. Sub-freezing temperatures between 25 and 29 degrees expected in the upper San Pedro Valley and Sulphur Springs Valley. * WHERE...Eastern Cochise County below 5000 feet, Upper Gila River Valley, Upper San Pedro River Valley, and Upper Santa Cruz River Valley/Altar Valley. * WHEN...From 2 AM to 9 AM MST Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
December 4, 2025 at 7:45 PM
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Freeze Warning issued December 4 at 12:16AM MST until December 5 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Sub-freezing temperatures between 29 and 32 degrees expected in the upper Gila River valley and in the upper Santa Cruz River Valley/Altar Valley. Sub-freezing temperatures between 25 and 29 degrees expected in the upper San Pedro Valley and Sulphur Springs Valley. * WHERE...Eastern Cochise County below 5000 feet, Upper Gila River Valley, Upper San Pedro River Valley, and Upper Santa Cruz River Valley/Altar Valley. * WHEN...From 2 AM to 9 AM MST Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
December 4, 2025 at 7:30 AM
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Freeze Warning issued December 3 at 12:25PM MST until December 5 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Sub-freezing temperatures between 29 and 32 degrees expected in the upper Gila River valley and in the upper Santa Cruz River Valley/Altar Valley. Sub-freezing temperatures between 25 and 29 degrees expected in the upper San Pedro Valley and Sulphur Springs Valley. * WHERE...Eastern Cochise County below 5000 feet, Upper Gila River Valley, Upper San Pedro River Valley, and Upper Santa Cruz River Valley/Altar Valley. * WHEN...From 2 AM to 9 AM MST Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
December 3, 2025 at 7:30 PM
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Dense Fog Advisory issued November 25 at 5:23AM MST until November 25 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Visibility less than one quarter of a mile in dense fog. Several cameras in Nogales and between Sierra Vista and Benson showing dense fog. * WHERE...Upper San Pedro River Valley and Upper Santa Cruz River Valley/Altar Valley. * WHEN...Until 9 AM MST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
November 25, 2025 at 12:30 PM
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Dense Fog Advisory issued November 24 at 8:54AM MST until November 24 at 11:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Visibility less than one-quarter mile in dense fog. Benson and Nogales airports continue to report visibilities down to one-quarter of a mile. * WHERE...Eastern Cochise County below 5000 feet, Upper Gila River Valley, Upper San Pedro River Valley, and Upper Santa Cruz River Valley/Altar Valley. Includes the cities of Benson, Nogales, Sierra Vista, Safford, and Tombstone. * WHEN...Until 11 AM MST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
November 24, 2025 at 4:00 PM
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Dense Fog Advisory issued November 24 at 6:02AM MST until November 24 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Visibility less than one quarter mile in dense fog. Benson and Nogales airports have recorded visibilities down to one quarter of a mile. * WHERE...Upper San Pedro River Valley and Upper Santa Cruz River Valley/Altar Valley. Includes the cities of Nogales, Benson, Tombstone, and Sierra Vista. * WHEN...Until 9 AM MST this morning. * IMPACTS...Low visibility could make driving conditions hazardous. * WHAT...Visibility less than one quarter mile in dense fog. Cochise County Airport has recorded visibilities below one quarter mile. * WHERE...Eastern Cochise County below 5000 feet and Upper Gila River Valley. Including the city of Wilcox, Safford, and I-10 between mile markers 325 and 350. * WHEN...Until 9 AM MST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
November 24, 2025 at 1:15 PM
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Dense Fog Advisory issued November 24 at 4:00AM MST until November 24 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Visibility less than one quarter mile in dense fog. Cochise County Airport has recorded visibilities below one quarter mile. * WHERE...Eastern Cochise County below 5000 feet and Upper Gila River Valley. Including the city of Wilcox and I-10 between mile markers 325 and 350. * WHEN...Until 9 AM MST this morning. * IMPACTS...Low visibility could make driving conditions hazardous.
November 24, 2025 at 11:15 AM
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🚨 Severe Thunderstorm Warning issued November 22 at 7:41PM MST until November 22 at 8:00PM MST by NWS Tucson AZ 🚨
Additional Details Here.
At 741 PM MST, a severe thunderstorm was located near Whetstone, moving north at 45 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. Locations impacted include... Sierra Vista, Whetstone, Huachuca City, Fort Huachuca and Fairbank. This includes the following highways... Route 90 between mile markers 305 and 321. Route 82 between mile markers 50 and 66.
November 23, 2025 at 2:45 AM
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🚨 Severe Thunderstorm Warning issued November 22 at 7:26PM MST until November 22 at 8:00PM MST by NWS Tucson AZ 🚨
Additional Details Here.
SVRTWC The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... Southwestern Cochise County in southeastern Arizona... * Until 800 PM MST. * At 726 PM MST, a severe thunderstorm was located near Fort Huachuca, moving northeast at 45 mph. HAZARD...Quarter size hail. SOURCE...Radar indicated. IMPACT...Damage to vehicles is expected. * Locations impacted include... Sierra Vista, Whetstone, Huachuca City, Tombstone, Fort Huachuca, Charleston, Fairbank and Ramsey Canyon Preserve. This includes the following highways... Route 90 between mile markers 305 and 326. Route 80 between mile markers 313 and 317. Route 92 between mile markers 322 and 328. Route 82 between mile markers 50 and 67.
November 23, 2025 at 2:30 AM
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Freeze Warning issued November 20 at 11:28PM MST until November 21 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* 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%
November 21, 2025 at 6:30 AM
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Freeze Warning issued November 20 at 12:23PM MST until November 21 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* 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...From 2 AM to 9 AM MST Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
November 20, 2025 at 7:30 PM
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Freeze Warning issued November 20 at 2:45AM MST until November 21 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Sub-freezing temperatures between 24 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...From 2 AM to 9 AM MST Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
November 20, 2025 at 10:00 AM
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🚨 Severe Thunderstorm Warning issued November 19 at 8:25PM MST until November 19 at 8:45PM MST by NWS Tucson AZ 🚨
Additional Details Here.
At 825 PM MST, a severe thunderstorm was located 18 miles north of Kitt Peak, moving northeast at 25 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Queens Well and Silver Bell.
November 20, 2025 at 3:30 AM
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🚨 Severe Thunderstorm Warning issued November 19 at 8:04PM MST until November 19 at 8:45PM MST by NWS Tucson AZ 🚨
Additional Details Here.
SVRTWC The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... North Central Pima County in southeastern Arizona... * Until 845 PM MST. * At 804 PM MST, a severe thunderstorm was located 8 miles northeast of San Isidro, moving northeast at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Queens Well, Santa Rosa Ranch and Silver Bell. This includes Route 86 between mile markers 131 and 132.
November 20, 2025 at 3:15 AM
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🚨 Severe Thunderstorm Warning issued November 19 at 1:13PM MST until November 19 at 1:30PM MST by NWS Tucson AZ 🚨
Additional Details Here.
At 113 PM MST, a severe thunderstorm was located near Saddlebrooke Ranch, moving northeast at 30 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. Locations impacted include... Catalina, Oro Valley, Marana, Saddlebrooke, Saddlebrooke Ranch, Tortolita, Catalina State Park, Oracle Junction, Biosphere 2 and Dove Mountain. This includes the following highways... Route 79 between mile markers 92 and 100. Route 77 between mile markers 81 and 96.
November 19, 2025 at 8:15 PM
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🚨 Severe Thunderstorm Warning issued November 19 at 12:54PM MST until November 19 at 1:30PM MST by NWS Tucson AZ 🚨
Additional Details Here.
SVRTWC The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... Northeastern Pima County in southeastern Arizona... South Central Pinal County in southeastern Arizona... * Until 130 PM MST. * At 1254 PM MST, a severe thunderstorm was located over Tortolita, moving northeast at 35 mph. HAZARD...60 mph wind gusts and quarter size hail. SOURCE...Radar indicated. IMPACT...Hail damage to vehicles is expected. Expect wind damage to roofs, siding, and trees. * Locations impacted include... Tucson, Catalina, Oro Valley, Marana, Casas Adobes, Flowing Wells, Saddlebrooke, Saddlebrooke Ranch, Tortolita, Catalina State Park, Saguaro National Park West, Picture Rocks, Dove Mountain, Oracle Junction and Biosphere 2. This includes the following highways... Route 79 between mile markers 92 and 100. Route 77 between mile markers 77 and 96. Interstate 10 between mile markers 241 and 252.
November 19, 2025 at 8:00 PM
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Freeze Warning issued November 19 at 12:50PM MST until November 21 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Sub-freezing temperatures between 24 to 30 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...From 2 AM to 9 AM MST Friday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
November 19, 2025 at 8:00 PM
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Freeze Warning issued November 11 at 1:38AM MST until November 11 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Near to sub-freezing temperatures ranging from 29 to 34 degrees expected. * WHERE...Graham and Cochise counties mainly through the Sulphur Springs Valley and St. David to Benson areas. * WHEN...Until 9 AM MST this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
November 11, 2025 at 8:45 AM
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Freeze Warning issued November 10 at 12:24PM MST until November 11 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Near to sub-freezing temperatures ranging from 29 to 34 degrees possible for the Sulphur Springs Valley and St. David and Benson areas. * WHERE...Eastern Cochise County below 5000 feet, Upper Gila River Valley, and Upper San Pedro River Valley. * WHEN...From 2 AM to 9 AM MST Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
November 10, 2025 at 7:30 PM
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🚨 Freeze Watch issued November 10 at 2:37AM MST until November 11 at 9:00AM MST by NWS Tucson AZ 🚨
Additional Details Here.
* WHAT...Near to sub-freezing temperatures ranging from 29 to 34 degrees possible for the Sulphur Springs Valley and St. David and Benson areas. * WHERE...Eastern Cochise County below 5000 feet, Upper Gila River Valley, and Upper San Pedro River Valley. * WHEN...From late tonight through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
November 10, 2025 at 9:45 AM
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🚨 Freeze Watch issued November 9 at 1:31PM MST until November 11 at 9:00AM MST by NWS Tucson AZ 🚨
Additional Details Here.
* WHAT...Near to sub-freezing temperatures ranging from 29 to 34 degrees possible for the Sulphur Springs Valley and St. David and Benson areas. * WHERE...Eastern Cochise County below 5000 feet, Upper Gila River Valley, and Upper San Pedro River Valley. * WHEN...From 2 AM to 9 AM Tuesday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
November 9, 2025 at 8:45 PM
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Freeze Warning issued October 30 at 12:22AM MST until October 30 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Near to sub-freezing temperatures ranging between 30 to 34 degrees possible, especially in low drainage areas including the Sulphur Springs Valley. * WHERE...Eastern Cochise County below 5000 feet and Upper Gila River Valley. * WHEN...Until 9 AM MST this morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
October 30, 2025 at 7:30 AM
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Freeze Warning issued October 29 at 12:16PM MST until October 30 at 9:00AM MST by NWS Tucson AZ
Additional Details Here.
* WHAT...Near to sub-freezing temperatures ranging between 30 to 34 degrees possible, especially in low drainage areas including the Sulphur Springs Valley. * WHERE...Eastern Cochise County below 5000 feet and Upper Gila River Valley. * WHEN...From 2 AM to 9 AM MST Thursday. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
October 29, 2025 at 7:30 PM
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🚨 Freeze Watch issued October 29 at 12:48AM MST until October 30 at 9:00AM MST by NWS Tucson AZ 🚨
Additional Details Here.
* WHAT...Near to sub-freezing temperatures ranging between 30 to 34 degrees possible, especially in low drainage areas including the Sulphur Springs Valley. * WHERE...Eastern Cochise County below 5000 feet and Upper Gila River Valley. * WHEN...From late tonight through Thursday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
October 29, 2025 at 8:00 AM