Alert archive / Arizona / Severe Thunderstorm Warnings in 2026
Severe Thunderstorm Warning 21, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 8, 2026, 8:40 PM MST for Maricopa County, Arizona. It was in force for 35 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2026, 8:40 PM MST (03:40 UTC)
- Expired
- Aug 8, 2026, 9:15 PM MST
- In force
- 35 min
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Maricopa County, AZ
The radar
The Phoenix radar (KIWA), 124 km from the middle of the area, began a volume at 03:44 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.
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 3.7 hours before the alert went out and 172 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 352 J/kg
- Mixed-layer CIN
- -69 J/kg
- Mixed-layer LCL
- 2258 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- 90 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
482
WUUS55 KPSR 090340
SVRPSR
AZC013-090415-
/O.NEW.KPSR.SV.W.0021.260809T0340Z-260809T0415Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Phoenix AZ
840 PM MST Sat Aug 8 2026
The National Weather Service in Phoenix has issued a
* Severe Thunderstorm Warning for...
Maricopa County in south central Arizona...
* Until 915 PM MST.
* At 840 PM MST, a severe thunderstorm was located near Wickenburg,
moving south at 15 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Wickenburg.
This includes US Highway 60 between mile markers 99 and 118.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3399 11272 3397 11262 3371 11271 3380 11300
3400 11290
TIME...MOT...LOC 0340Z 020DEG 11KT 3389 11276
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
952 follow-up statements
205
WWUS55 KPSR 090358
SVSPSR
Severe Weather Statement
National Weather Service Phoenix AZ
858 PM MST Sat Aug 8 2026
AZC013-090415-
/O.CON.KPSR.SV.W.0021.000000T0000Z-260809T0415Z/
Maricopa AZ-
858 PM MST Sat Aug 8 2026
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 915 PM MST
FOR MARICOPA COUNTY...
At 858 PM MST, a severe thunderstorm was located 8 miles southwest of
Wickenburg, moving west at 20 mph.
HAZARD...60 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
Locations impacted include...
Wickenburg.
This includes US Highway 60 between mile markers 99 and 113.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3398 11269 3372 11274 3380 11300 3400 11290
3399 11272
TIME...MOT...LOC 0358Z 080DEG 16KT 3388 11287
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
95537
WWUS55 KPSR 090406
SVSPSR
Severe Weather Statement
National Weather Service Phoenix AZ
906 PM MST Sat Aug 8 2026
AZC013-090416-
/O.EXP.KPSR.SV.W.0021.000000T0000Z-260809T0415Z/
Maricopa AZ-
906 PM MST Sat Aug 8 2026
...THE SEVERE THUNDERSTORM WARNING FOR MARICOPA COUNTY WILL EXPIRE AT
915 PM MST...
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 will be allowed to expire.
&&
LAT...LON 3398 11269 3372 11274 3380 11300 3400 11290
3399 11272
TIME...MOT...LOC 0406Z 020DEG 11KT 3387 11287
$$
95The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 6:08 PM MST | Special Weather Statement | PSR | 52 min | |
| Aug 8, 8:13 PM MST | Special Weather Statement | PSR | 32 min | |
| Aug 8, 8:36 PM MST | Special Weather Statement | PSR | 39 min | |
| Aug 8, 9:06 PM MST | Areal Flood Advisory | PSR | Maricopa | 2 hr |
| Aug 8, 9:28 PM MST | Dust Storm Advisory | PSR | La Paz, Maricopa, Yuma | 45 min |
| Aug 8, 9:47 PM MST | Special Weather Statement | PSR | 43 min | |
| Aug 9, 3:57 PM MST | Special Weather Statement | PSR | Gila | 48 min |
| Aug 9, 4:03 PM MST | Special Weather Statement | PSR | La Paz | 42 min |
| Aug 9, 4:09 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 22 min |
| Aug 9, 4:35 PM MST | Severe Thunderstorm Warning | PSR | Gila, Maricopa, Pinal | 40 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2026Every severe thunderstorm warning in 2026
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.