Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 57, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 13, 2021, 3:30 PM MST for Gila County, Arizona. It was in force for 45 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 13, 2021, 3:30 PM MST (22:30 UTC)
- Expired
- Aug 13, 2021, 4:15 PM MST
- In force
- 45 min
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
County Gila County, AZ
The radar
The Phoenix radar (KIWA), 111 km from the middle of the area, began a volume at 22:29 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
Tuscon, AZ (KTUS), launched 12:00Z, 10.5 hours before the alert went out and 133 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
- 544 J/kg
- Mixed-layer CIN
- -46 J/kg
- Mixed-layer LCL
- 1049 m above ground
- 0-6 km bulk shear
- 1 kt
- 0-1 km storm-relative helicity
- -36 m²/s²
- 0-3 km storm-relative helicity
- -1 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
914
WUUS55 KPSR 132230
SVRPSR
AZC007-132315-
/O.NEW.KPSR.SV.W.0057.210813T2230Z-210813T2315Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Phoenix AZ
330 PM MST Fri Aug 13 2021
The National Weather Service in Phoenix has issued a
* Severe Thunderstorm Warning for...
Gila County in east central Arizona...
* Until 415 PM MST.
* At 330 PM MST, a severe thunderstorm was located near San Carlos,
or 21 miles east of Globe, moving southwest at 5 mph.
HAZARD...60 mph wind gusts and nickel size hail.
SOURCE...Radar indicated.
IMPACT...Expect damage to roofs, siding, and trees.
* Locations impacted include...
Globe, San Carlos and Cutter.
This includes the following highways...
US Highway 60 between mile markers 254 and 259.
AZ Route 70 between mile markers 256 and 271.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3341 11034 3338 11045 3329 11046 3321 11041
3320 11046 3318 11048 3319 11050 3316 11056
3347 11080 3353 11046
TIME...MOT...LOC 2230Z 056DEG 5KT 3337 11042
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...0.88 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SDB2 follow-up statements
449
WWUS55 KPSR 132251
SVSPSR
Severe Weather Statement
National Weather Service Phoenix AZ
351 PM MST Fri Aug 13 2021
AZC007-132315-
/O.CON.KPSR.SV.W.0057.000000T0000Z-210813T2315Z/
Gila AZ-
351 PM MST Fri Aug 13 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MST
FOR GILA COUNTY...
At 350 PM MST, a severe thunderstorm was located 7 miles southwest of
San Carlos, or 16 miles southeast of Globe, moving west at 25 mph.
HAZARD...70 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect considerable
tree damage. Wind damage is also likely to mobile homes,
roofs, and outbuildings.
Locations impacted include...
Globe, San Carlos and Cutter.
This includes the following highways...
US Highway 60 between mile markers 254 and 259.
AZ Route 70 between mile markers 256 and 271.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3340 11042 3339 11042 3338 11045 3329 11046
3321 11041 3320 11046 3318 11048 3319 11050
3316 11056 3347 11080 3353 11048
TIME...MOT...LOC 2250Z 070DEG 20KT 3327 11054
TORNADO...POSSIBLE
THUNDERSTORM DAMAGE THREAT...CONSIDERABLE
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...70 MPH
$$
SDB663
WWUS55 KPSR 132314
SVSPSR
Severe Weather Statement
National Weather Service Phoenix AZ
414 PM MST Fri Aug 13 2021
AZC007-132324-
/O.EXP.KPSR.SV.W.0057.000000T0000Z-210813T2315Z/
Gila AZ-
414 PM MST Fri Aug 13 2021
...THE SEVERE THUNDERSTORM WARNING FOR GILA COUNTY WILL EXPIRE AT 415
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. However small
hail, gusty winds and heavy rain are still possible with this
thunderstorm.
LAT...LON 3340 11042 3339 11042 3338 11045 3329 11046
3321 11041 3320 11046 3318 11048 3319 11050
3316 11056 3347 11080 3353 11048
TIME...MOT...LOC 2314Z 056DEG 5KT 3325 11057
$$
SDBThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 12, 5:16 PM MST | Special Weather Statement | PSR | Yuma | 44 min |
| Aug 12, 5:17 PM MST | Special Weather Statement | PSR | Yuma | 43 min |
| Aug 12, 5:53 PM MST | Areal Flood Advisory | PSR | Yuma | 3 hr |
| Aug 12, 6:28 PM MST | Special Weather Statement | PSR | La Paz | 47 min |
| Aug 12, 6:30 PM MST | Special Weather Statement | PSR | Yuma | 45 min |
| Aug 12, 6:42 PM MST | Areal Flood Advisory | PSR | La Paz | 3 hr |
| Aug 12, 6:47 PM MST | Areal Flood Advisory | PSR | Maricopa, Yuma | 3 hr |
| Aug 12, 6:50 PM MST | Severe Thunderstorm Warning | PSR | Yuma | 40 min |
| Aug 12, 6:52 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 38 min |
| Aug 12, 7:16 PM MST | Flash Flood Warning | PSR | Yuma | 4 hr |
| Aug 12, 7:25 PM MST | Severe Thunderstorm Warning | PSR | La Paz | 50 min |
| Aug 12, 7:42 PM MST | Areal Flood Advisory | PSR | La Paz, Yuma | 3 hr |
| Aug 12, 7:56 PM MST | Special Weather Statement | PSR | La Paz | 49 min |
| Aug 12, 8:05 PM MST | Dust Storm Advisory | PSR | La Paz, Yuma | 55 min |
| Aug 12, 8:48 PM MST | Flash Flood Warning | PSR | La Paz, Yuma | 4 hr |
| Aug 13, 2:50 PM MST | Special Weather Statement | PSR | Gila | 40 min |
| Aug 13, 3:36 PM MST | Flash Flood Warning | PSR | Gila | 4 hr |
| Aug 13, 4:12 PM MST | Flash Flood Warning | PSR | Gila | 4 hr |
| Aug 13, 4:14 PM MST | Special Weather Statement | PSR | Gila | 46 min |
| Aug 13, 4:34 PM MST | Severe Thunderstorm Warning | PSR | Gila, Maricopa, Pinal | 41 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2021Every severe thunderstorm warning in 2021
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.