Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 95, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 29, 2021, 5:06 PM MST for Cochise County, Graham County, Pima County, Arizona. It was in force for 39 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
- Jul 29, 2021, 5:06 PM MST (00:06 UTC)
- Expired
- Jul 29, 2021, 5:45 PM MST
- In force
- 39 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
Counties Cochise County, AZ, Graham County, AZ, Pima County, AZ
The radar
The Tucson radar (KEMX), 68 km from the middle of the area, began a volume at 00:07 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, 0.1 hours before the alert went out and 65 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
- 146 J/kg
- Mixed-layer CIN
- -68 J/kg
- Mixed-layer LCL
- 2818 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 44 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
795
WUUS55 KTWC 300006
SVRTWC
AZC003-009-019-300045-
/O.NEW.KTWC.SV.W.0095.210730T0006Z-210730T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
506 PM MST Thu Jul 29 2021
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
Eastern Pima County in southeastern Arizona...
Southwestern Graham County in southeastern Arizona...
Northwestern Cochise County in southeastern Arizona...
* Until 545 PM MST.
* At 505 PM MST, a severe thunderstorm was located 26 miles northwest
of Willcox, moving west at 20 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...
Muleshoe Ranch Preserve and Cascabel.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3251 11016 3231 11016 3228 11047 3254 11044
TIME...MOT...LOC 0005Z 092DEG 16KT 3240 11025
HAIL...1.00IN
WIND...60MPH
$$
RH1 follow-up statement
999
WWUS55 KTWC 300041
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
541 PM MST Thu Jul 29 2021
AZC003-009-019-300050-
/O.EXP.KTWC.SV.W.0095.000000T0000Z-210730T0045Z/
Pima-Graham-Cochise-
541 PM MST Thu Jul 29 2021
...THE SEVERE THUNDERSTORM WARNING FOR EASTERN PIMA...SOUTHWESTERN
GRAHAM AND NORTHWESTERN COCHISE COUNTIES WILL EXPIRE AT 545 PM MST...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 3251 11016 3231 11016 3228 11047 3254 11044
TIME...MOT...LOC 0040Z 092DEG 16KT 3241 11043
$$
RHThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 29, 6:29 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Jul 29, 6:33 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 117 min |
| Jul 29, 7:11 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Jul 29, 7:53 PM MST | Areal Flood Advisory | TWC | Pima | 112 min |
| Jul 30, 2:38 PM MST | Special Weather Statement | TWC | Santa Cruz | 52 min |
| Jul 30, 3:07 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 38 min |
| Jul 30, 3:31 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 3 hr |
| Jul 30, 4:11 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 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.