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Home Return to list Severe Thunderstorm Warning 0128 Issued by the Flagstaff Forecast Office
Action: New Issued At: 2026-09-23 17:54:28
337
WUUS55 KFGZ 232254
SVRFGZ
AZC025-232330-
/O.NEW.KFGZ.SV.W.0128.260923T2254Z-260923T2330Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Flagstaff AZ
354 PM MST Wed Sep 23 2026
The National Weather Service in Flagstaff has issued a
* Severe Thunderstorm Warning for...
Yavapai County in west central Arizona...
* Until 430 PM MST.
* At 354 PM MST, a severe thunderstorm was located over the Agua Fria
National Monument, or 32 miles south of Camp Verde, moving south at
20 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...
Agua Fria National Monument, Black Canyon City, Sunset Point Rest
Area and Rock Springs.
This includes Interstate 17 between mile markers 242 and 257.
This includes the following recreation areas and campgrounds...
Black Canyon Campground.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
&&
LAT...LON 3404 11216 3425 11214 3430 11198 3406 11183
3401 11185 3405 11215 3404 11215
TIME...MOT...LOC 2253Z 337DEG 15KT 3413 11202
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Humphreys
Action: Continued Issued At: 2026-09-23 18:08:28
722
WWUS55 KFGZ 232307
SVSFGZ
Severe Weather Statement
National Weather Service Flagstaff AZ
407 PM MST Wed Sep 23 2026
AZC025-232330-
/O.CON.KFGZ.SV.W.0128.000000T0000Z-260923T2330Z/
Yavapai AZ-
407 PM MST Wed Sep 23 2026
...SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 430 PM MST FOR
YAVAPAI COUNTY...
At 407 PM MST, a severe thunderstorm was located 7 miles northeast of
Black Canyon City, moving south at 10 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Black Canyon City, Agua Fria National Monument and Rock Springs.
This includes Interstate 17 between mile markers 242 and 247.
This includes the following recreation areas and campgrounds...
Black Canyon Campground.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
Seek shelter inside a well-built structure and stay away from
windows. This storm is capable of producing damaging winds and large
hail.
Continuous cloud to ground lightning is occurring with this storm.
Lightning is one of natures leading killers. Remember, if you can
hear thunder, you are close enough to be struck by lightning.
&&
LAT...LON 3404 11216 3413 11215 3419 11207 3417 11194
3404 11184 3401 11185 3405 11215 3404 11215
TIME...MOT...LOC 2254Z 347DEG 10KT 3416 11205
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Humphreys
Action: Expired Issued At: 2026-09-23 18:32:29
506
WWUS55 KFGZ 232331
SVSFGZ
Severe Weather Statement
National Weather Service Flagstaff AZ
431 PM MST Wed Sep 23 2026
AZC025-232341-
/O.EXP.KFGZ.SV.W.0128.000000T0000Z-260923T2330Z/
Yavapai AZ-
431 PM MST Wed Sep 23 2026
...SEVERE THUNDERSTORM WARNING HAS EXPIRED FOR THE AGUA FRIA NATIONAL
MONUMENT IN YAVAPAI COUNTY...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning has been allowed to expire. However, small
hail, gusty winds, and heavy rain are still possible with this
thunderstorm.
&&
LAT...LON 3413 11215 3419 11207 3417 11194 3404 11184
3401 11185 3405 11215 3404 11215 3404 11216
TIME...MOT...LOC 2307Z 347DEG 10KT 3412 11204
$$
Humphreys
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