Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 105, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 2, 2021, 8:13 PM MST for Pima County, Arizona. It was in force for 33 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 2, 2021, 8:13 PM MST (03:13 UTC)
- Expired
- Aug 2, 2021, 8:46 PM MST
- In force
- 33 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 70.0 mph
County Pima County, AZ
The radar
The Tucson radar (KEMX), 26 km from the middle of the area, began a volume at 03:16 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 00:00Z, 3.2 hours before the alert went out and 16 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
- 1093 J/kg
- Mixed-layer CIN
- -27 J/kg
- Mixed-layer LCL
- 2632 m above ground
- 0-6 km bulk shear
- 0 kt
- 0-1 km storm-relative helicity
- -18 m²/s²
- 0-3 km storm-relative helicity
- 37 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
302
WUUS55 KTWC 030313
SVRTWC
AZC019-030400-
/O.NEW.KTWC.SV.W.0105.210803T0313Z-210803T0400Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
813 PM MST Mon Aug 2 2021
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
East central Pima County in southeastern Arizona...
* Until 900 PM MST.
* At 812 PM MST, a severe thunderstorm was located near East Tucson
down to Rita Ranch. Vail, moving south at 15 mph.
HAZARD...70 mph wind gusts.
SOURCE...Radar indicated.
IMPACT...Expect considerable tree damage. Damage is likely to
mobile homes, roofs, and outbuildings.
* Locations impacted include...
Tucson, Davis-Monthan Air Force Base, Tanque Verde, Vail, East
Sahuarita, Corona De Tucson, Saguaro National Park East and Rita
Ranch.
This includes the following highways...
Interstate 10 between mile markers 269 and 288.
Route 83 between mile markers 51 and 58.
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 3228 11080 3215 11061 3188 11056 3196 11093
TIME...MOT...LOC 0312Z 006DEG 12KT 3210 11074
HAIL...<.75IN
WIND...70MPH
$$
Meyer2 follow-up statements
129 WWUS55 KTWC 030335 SVSTWC Severe Weather Statement National Weather Service Tucson AZ 835 PM MST Mon Aug 2 2021 AZC019-030400- /O.CON.KTWC.SV.W.0105.000000T0000Z-210803T0400Z/ Pima- 835 PM MST Mon Aug 2 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 900 PM MST FOR EAST CENTRAL PIMA COUNTY... At 832 PM MST, the severe thunderstorm that moved through portions of east Tucson is weakening. Now near Vail and southeast Tucson, it continues to push to the south at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Vail, East Sahuarita, Corona De Tucson, Saguaro National Park East and Rita Ranch. This includes the following highways... Interstate 10 between mile markers 269 and 288. Route 83 between mile markers 51 and 58. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3228 11080 3215 11061 3188 11056 3196 11093 TIME...MOT...LOC 0332Z 006DEG 12KT 3203 11075 HAIL...<.75IN WIND...60MPH $$ Meyer
289
WWUS55 KTWC 030346
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
846 PM MST Mon Aug 2 2021
AZC019-030355-
/O.CAN.KTWC.SV.W.0105.000000T0000Z-210803T0400Z/
Pima-
846 PM MST Mon Aug 2 2021
...THE SEVERE THUNDERSTORM WARNING FOR EAST CENTRAL PIMA COUNTY IS
CANCELLED...
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 has been cancelled. However gusty winds to
40 mph and heavy rain are still possible with this thunderstorm.
LAT...LON 3228 11080 3215 11061 3188 11056 3196 11093
TIME...MOT...LOC 0336Z 006DEG 12KT 3198 11076
$$
MeyerThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 2, 5:15 PM MST | Special Weather Statement | TWC | Santa Cruz | 30 min |
| Aug 2, 5:19 PM MST | Dust Storm Advisory | TWC | Cochise | 41 min |
| Aug 2, 5:33 PM MST | Special Weather Statement | TWC | 42 min | |
| Aug 2, 5:48 PM MST | Special Weather Statement | TWC | 42 min | |
| Aug 2, 5:51 PM MST | Areal Flood Advisory | TWC | Pima | 114 min |
| Aug 2, 5:58 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Aug 2, 6:24 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Aug 2, 6:26 PM MST | Areal Flood Advisory | TWC | Cochise, Santa Cruz | 2 hr |
| Aug 2, 6:31 PM MST | Special Weather Statement | TWC | 59 min | |
| Aug 2, 6:37 PM MST | Severe Thunderstorm Warning | TWC | Pima | 38 min |
| Aug 2, 6:55 PM MST | Flash Flood Warning | TWC | Pima | 3 hr |
| Aug 2, 7:06 PM MST | Areal Flood Advisory | TWC | Pinal | 114 min |
| Aug 2, 7:06 PM MST | Special Weather Statement | TWC | Cochise | 39 min |
| Aug 2, 7:15 PM MST | Special Weather Statement | TWC | Santa Cruz | 45 min |
| Aug 2, 7:25 PM MST | Special Weather Statement | TWC | 50 min | |
| Aug 2, 7:31 PM MST | Severe Thunderstorm Warning | TWC | Pima | 44 min |
| Aug 2, 8:14 PM MST | Flash Flood Warning | TWC | Pima | 3 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.