Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 126, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Oct 5, 2021, 5:41 PM MST for Maricopa County, Arizona. It was in force for 34 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
- Oct 5, 2021, 5:41 PM MST (00:41 UTC)
- Expired
- Oct 5, 2021, 6:15 PM MST
- In force
- 34 min
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Maricopa County, AZ
The radar
The Phoenix radar (KIWA), 140 km from the middle of the area, began a volume at 00:40 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 5, 11:46 AM MST | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Flgstf/Belemont, AZ (KFGZ), launched 00:00Z, 0.7 hours before the alert went out and 194 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 840 m above ground
- 0-6 km bulk shear
- 37 kt
- 0-1 km storm-relative helicity
- 16 m²/s²
- 0-3 km storm-relative helicity
- 135 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
890
WUUS55 KPSR 060041
SVRPSR
AZC013-060115-
/O.NEW.KPSR.SV.W.0126.211006T0041Z-211006T0115Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Phoenix AZ
541 PM MST Tue Oct 5 2021
The National Weather Service in Phoenix has issued a
* Severe Thunderstorm Warning for...
Maricopa County in south central Arizona...
* Until 615 PM MST.
* At 541 PM MST, a severe thunderstorm was located 14 miles southeast
of Aguila, or 19 miles northwest of Tonopah, moving north 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...
Aguila.
This includes US Highway 60 between mile markers 82 and 97.
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 3370 11294 3368 11315 3400 11325 3400 11294
TIME...MOT...LOC 0041Z 177DEG 26KT 3376 11307
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SDB1 follow-up statement
488
WWUS55 KPSR 060103
SVSPSR
Severe Weather Statement
National Weather Service Phoenix AZ
603 PM MST Tue Oct 5 2021
AZC013-060115-
/O.CON.KPSR.SV.W.0126.000000T0000Z-211006T0115Z/
Maricopa AZ-
603 PM MST Tue Oct 5 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 615 PM MST
FOR MARICOPA COUNTY...
At 602 PM MST, a severe thunderstorm was located near Aguila, or 18
miles west of Wickenburg, moving north at 30 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Aguila.
This includes US Highway 60 between mile markers 81 and 97.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
Continuous cloud to ground lightning is occurring with this storm.
Move indoors immediately. Lightning is one of nature's leading
killers. Remember, if you can hear thunder, you are close enough to
be struck by lightning.
Torrential rainfall is occurring with this storm, and may lead to
flash flooding. Do not drive your vehicle through flooded roadways.
&&
LAT...LON 3388 11294 3383 11320 3400 11325 3400 11294
TIME...MOT...LOC 0102Z 177DEG 26KT 3392 11308
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
SDBThe office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 5:05 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 40 min |
| Oct 5, 5:19 PM MST | Severe Thunderstorm Warning | PSR | Maricopa, Pinal | 41 min |
| Oct 5, 5:24 PM MST | Severe Thunderstorm Warning | PSR | Gila | 51 min |
| Oct 5, 5:46 PM MST | Special Weather Statement | PSR | Gila | 44 min |
| Oct 5, 6:00 PM MST | Severe Thunderstorm Warning | PSR | Maricopa | 45 min |
| Oct 5, 6:25 PM MST | Areal Flood Warning | PSR | Gila | 110 min |
| Oct 5, 6:40 PM MST | Special Weather Statement | PSR | 35 min | |
| Oct 5, 7:17 PM MST | Special Weather Statement | PSR | La Paz | 43 min |
| Oct 5, 7:38 PM MST | Severe Thunderstorm Warning | PSR | La Paz, Maricopa | 37 min |
| Oct 5, 7:50 PM MST | Areal Flood Advisory | PSR | La Paz | 3 hr |
| Oct 5, 8:16 PM MST | Special Weather Statement | PSR | 29 min | |
| Oct 5, 8:23 PM MST | Areal Flood Warning | PSR | Gila | 10 hr |
| Oct 6, 7:43 AM MST | Areal Flood Warning | PSR | Gila | 14 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.