Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 82, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Aug 16, 2021, 1:54 AM MST for La Paz County, Arizona. It was in force for 66 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 16, 2021, 1:54 AM MST (08:54 UTC)
- Expired
- Aug 16, 2021, 3:00 AM MST
- In force
- 66 min
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County La Paz County, AZ
The radar
The Yuma radar (KYUX), 164 km from the middle of the area, began a volume at 08:57 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
Phoenix, AZ (KPSR), launched 00:00Z, 8.9 hours before the alert went out and 181 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
- 1548 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 2123 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- -22 m²/s²
- 0-3 km storm-relative helicity
- 56 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
945
WUUS55 KPSR 160854
SVRPSR
AZC012-161000-
/O.NEW.KPSR.SV.W.0082.210816T0854Z-210816T1000Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Phoenix AZ
154 AM MST Mon Aug 16 2021
The National Weather Service in Phoenix has issued a
* Severe Thunderstorm Warning for...
Central La Paz County in west central Arizona...
* Until 300 AM MST.
* At 154 AM MST, a severe thunderstorm was located 7 miles east of
Bouse, or 27 miles southeast of Parker, moving southwest 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...
Quartzsite, Salome, Brenda, Vicksburg Junction, Wenden, Vicksburg,
Bouse and Harcuvar.
This includes the following highways...
AZ Interstate 10 between mile markers 15 and 61.
US Highway 60 between mile markers 31 and 69.
AZ Route 72 between mile markers 15 and 49.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Large hail and damaging winds and 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 3414 11383 3386 11340 3364 11339 3350 11369
3351 11397 3364 11429 3386 11428 3406 11415
TIME...MOT...LOC 0854Z 052DEG 28KT 3392 11386
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
Hirsch1 follow-up statement
496
WWUS55 KPSR 160954
SVSPSR
Severe Weather Statement
National Weather Service Phoenix AZ
254 AM MST Mon Aug 16 2021
AZC012-161004-
/O.EXP.KPSR.SV.W.0082.000000T0000Z-210816T1000Z/
La Paz AZ-
254 AM MST Mon Aug 16 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL LA PAZ COUNTY WILL
EXPIRE AT 300 AM MST...
The storm which prompted the warning has weakened below severe
limits, and has exited the warned area. Therefore, the warning will
be allowed to expire. However heavy rain is still possible with this
thunderstorm.
LAT...LON 3414 11383 3386 11340 3364 11339 3350 11369
3351 11397 3364 11429 3386 11428 3406 11415
TIME...MOT...LOC 0954Z 052DEG 28KT 3327 11432
$$
HirschThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 15, 7:49 PM MST | Special Weather Statement | PSR | Gila | 56 min |
| Aug 15, 8:26 PM MST | Severe Thunderstorm Warning | PSR | Gila | 49 min |
| Aug 15, 9:14 PM MST | Severe Thunderstorm Warning | PSR | Gila, Maricopa, Pinal | 46 min |
| Aug 15, 9:18 PM MST | Special Weather Statement | PSR | Gila | 42 min |
| Aug 15, 9:58 PM MST | Severe Thunderstorm Warning | PSR | Gila, Maricopa, Pinal | 47 min |
| Aug 15, 10:14 PM MST | Flash Flood Warning | PSR | Gila | 4 hr |
| Aug 15, 10:31 PM MST | Severe Thunderstorm Warning | PSR | Maricopa, Pinal | 44 min |
| Aug 15, 10:45 PM MST | Special Weather Statement | PSR | Pinal | 45 min |
| Aug 15, 10:50 PM MST | Flash Flood Warning | PSR | Gila, Maricopa, Pinal | 6 hr |
| Aug 15, 10:55 PM MST | Dust Storm Advisory | PSR | Maricopa, Pinal | 65 min |
| Aug 15, 10:58 PM MST | Areal Flood Advisory | PSR | Maricopa, Pinal | 3 hr |
| Aug 15, 11:14 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 46 min |
| Aug 15, 11:31 PM MST | Special Weather Statement | PSR | Maricopa | 44 min |
| Aug 15, 11:37 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 38 min |
| Aug 15, 11:44 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 32 min |
| Aug 15, 11:45 PM MST | Areal Flood Advisory | PSR | Maricopa | 3 hr |
| Aug 16, 12:18 AM MST | Special Weather Statement | PSR | 42 min | |
| Aug 16, 12:49 AM MST | Severe Thunderstorm Warning | PSR | La Paz, Maricopa | 56 min |
| Aug 16, 1:33 AM MST | Flash Flood Warning | PSR | La Paz, Maricopa | 6 hr |
| Aug 16, 1:47 AM MST | Special Weather Statement | PSR | La Paz | 58 min |
| Aug 16, 2:22 AM MST | Special Weather Statement | PSR | La Paz | 68 min |
| Aug 16, 2:53 AM MST | Flash Flood Warning | PSR | La Paz | 5 hr |
| Aug 16, 3:08 AM MST | Dust Storm Advisory | PSR | La Paz, Yuma | 2 hr |
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.