Alert archive / Arizona / Severe Thunderstorm Warnings in 2025

Severe Thunderstorm Warning 37, NWS Phoenix, AZ

September 1, 2025Maricopa County, Pinal County, Arizona

NWS Phoenix, AZ issued this severe thunderstorm warning at Sep 1, 2025, 4:53 PM MST for Maricopa County, Pinal County, Arizona. It was in force for 52 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Sep 1, 2025, 4:53 PM MST (23:53 UTC)
Expired: Sep 1, 2025, 5:45 PM MST
In force: 52 min
Issued by: NWS Phoenix, AZ
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Maricopa County, AZ, Pinal County, AZ

The radar

The Phoenix radar (KIWA), 29 km from the middle of the area, began a volume at 23:54 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Phoenix, AZ wrote its last area forecast discussion before this severe thunderstorm warning went out at Sep 1, 1:35 PM MST, 3 hours 18 minutes earlier.

Area forecast discussion, Sep 1, 1:35 PM MST, 3 hours 18 minutes before

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In the hours before

Special weather statement, Sep 1, 2:02 PM MST, 2 hours 51 minutes before

Special Weather Statement
National Weather Service Phoenix AZ
202 PM MST Mon Sep 1 2025

AZZ563-012130-
Southeast Gila County AZ-
202 PM MST Mon Sep 1 2025

...A STRONG THUNDERSTORM WILL IMPACT GILA COUNTY THROUGH 230 PM
MST...

At 201 PM MST, Doppler radar was tracking a strong thunderstorm near
Hilltop, or 26 miles northeast of Globe, moving west at 5 mph.

HAZARD...Wind gusts up to 40 mph and half inch hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Sawmill and Hilltop.

This includes US Highway 60 between mile markers 271 and 288.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3377 11036 3362 11037 3359 11062 3378 11063
TIME...MOT...LOC 2101Z 080DEG 5KT 3370 11048

MAX HAIL SIZE...0.50 IN
MAX WIND GUST...40 MPH

TW

Special weather statement, Sep 1, 2:56 PM MST, 1 hour 57 minutes before

Special Weather Statement
National Weather Service Phoenix AZ
256 PM MST Mon Sep 1 2025

AZZ547-556-558-560-562-563-012300-
Southeast Gila County AZ-Tonto Basin AZ-San Carlos AZ-Globe/Miami AZ-
Rio Verde/Salt River AZ-Pinal/Superstition Mountains AZ-
256 PM MST Mon Sep 1 2025

...STRONG THUNDERSTORMS WILL IMPACT GILA...MARICOPA AND PINAL
COUNTIES THROUGH 400 PM MST...

At 255 PM MST, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from near Coon Creek CG to 10
miles north of Cutter to near San Carlos. Movement was west at 15
mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Globe, San Carlos, Miami, Central Heights-Midland City, Cutter, Tonto
National Monument, Claypool, Top-Of-The-World, Inspiration, and
Roosevelt Estates.

This includes the following highways...
US Highway 60 between mile markers 237 and 271.
AZ Route 70 between mile markers 253 and 271.
AZ Route 77 between mile markers 161 and 170.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3338 11045 3329 11046 3320 11042 3319 11050
      3314 11059 3315 11064 3334 11097 3363 11123
      3367 11093 3364 11092 3368 11082 3366 11078
      3369 11074 3344 11025
TIME...MOT...LOC 2155Z 077DEG 12KT 3361 11081 3351 11061 3339 11038

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

TW

Special weather statement, Sep 1, 4:06 PM MST, 47 minutes before

Special Weather Statement
National Weather Service Phoenix AZ
406 PM MST Mon Sep 1 2025

AZZ545-547-556>558-563-020000-
Southeast Gila County AZ-New River Mesa AZ-Mazatzal Mountains AZ-
Tonto Basin AZ-Rio Verde/Salt River AZ-
Pinal/Superstition Mountains AZ-
406 PM MST Mon Sep 1 2025

...STRONG THUNDERSTORMS WILL IMPACT GILA...MARICOPA AND PINAL
COUNTIES THROUGH 500 PM MST...

At 405 PM MST, Doppler radar was tracking a cluster of strong
thunderstorms along a line extending from near Jakes Corner to 6
miles east of Tonto Basin to near Coon Creek CG. Movement was
southwest at 15 mph.

HAZARD...Wind gusts up to 40 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Round Valley, Sugarloaf Mountain, Sycamore Creek, Ballantine
Trailhead, Sunflower, Roosevelt, Punkin Center, Roosevelt Dam,
Saguaro Lake, Canyon Lake, Tonto Basin, Tonto National Monument, Four
Peaks, Apache Lake, Oak Spring Canyon, Horseshoe Reservoir, Roosevelt
Estates, and Tortilla Flat.

This includes the following highways...
AZ Route 87 between mile markers 198 and 229.
AZ Route 188 between mile markers 229 and 266.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

If on or near Roosevelt Lake, Apache Lake, Canyon Lake, Saguaro
Lake, or Bartlett Lake, get out of the water and move indoors or
inside a vehicle. Remember, lightning can strike out to 10 miles
from the parent thunderstorm. If you can hear thunder, you are close
enough to be struck by lightning. Move to safe shelter now! Do not
be caught on the water in a thunderstorm.

&&

LAT...LON 3396 11139 3391 11128 3380 11115 3376 11099
      3364 11092 3367 11082 3341 11110 3357 11156
      3400 11175 3400 11150 3401 11144
TIME...MOT...LOC 2305Z 050DEG 14KT 3398 11135 3383 11119 3371 11091

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH

TW

Special weather statement, Sep 1, 4:21 PM MST, 32 minutes before

Special Weather Statement
National Weather Service Phoenix AZ
421 PM MST Mon Sep 1 2025

AZZ548-549-551-553-555-020000-
Fountain Hills/East Mesa AZ-Northwest Pinal County AZ-
Southeast Valley/Queen Creek AZ-East Valley AZ-
Apache Junction/Gold Canyon AZ-
421 PM MST Mon Sep 1 2025

...A STRONG THUNDERSTORM WILL IMPACT MARICOPA AND PINAL COUNTIES
THROUGH 500 PM MST...

At 420 PM MST, Doppler radar was tracking a strong thunderstorm near
Gold Canyon, moving west at 15 mph.

HAZARD...Wind gusts of 50 to 55 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects.

Locations impacted include...
Mesa, Gilbert, Apache Junction, Gold Canyon, East Mesa, Queen Creek,
Chandler Heights, Gold Camp, Superstition Springs Mall, Florence
Junction, Kings Ranch, Phoenix Mesa Gateway Airport, and Queen
Valley.

This includes the following highways...
US Highway 60 between mile markers 187 and 213.
AZ Route 202 between mile markers 29 and 38.
AZ Route 79 near mile marker 150.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3339 11142 3325 11132 3318 11170 3342 11173
TIME...MOT...LOC 2320Z 087DEG 12KT 3330 11154

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...55 MPH

TW

The office that day

Everything else NWS Phoenix, AZ issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 31, 8:17 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	58 min
Sep 1, 2:02 PM MST	Special Weather Statement	PSR	Gila	28 min
Sep 1, 2:56 PM MST	Special Weather Statement	PSR	Gila	64 min
Sep 1, 4:06 PM MST	Special Weather Statement	PSR	Gila	54 min
Sep 1, 4:21 PM MST	Special Weather Statement	PSR	Pinal	39 min
Sep 1, 4:38 PM MST	Dust Storm Advisory	PSR	Maricopa, Pinal	52 min

Nearby

Severe Thunderstorm Warnings in Arizona, 2025 Every severe thunderstorm warning in 2025

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive.