Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 114, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 6, 2021, 3:59 PM MST for Cochise County, Arizona. It was in force for 46 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 6, 2021, 3:59 PM MST (22:59 UTC)
- Expired
- Aug 6, 2021, 4:45 PM MST
- In force
- 46 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Cochise County, AZ
The radar
The Tucson radar (KEMX), 48 km from the middle of the area, began a volume at 23:00 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, 11.0 hours before the alert went out and 71 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
- 1100 J/kg
- Mixed-layer CIN
- -195 J/kg
- Mixed-layer LCL
- 1879 m above ground
- 0-6 km bulk shear
- 11 kt
- 0-1 km storm-relative helicity
- -13 m²/s²
- 0-3 km storm-relative helicity
- -10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
791
WUUS55 KTWC 062259
SVRTWC
AZC003-062345-
/O.NEW.KTWC.SV.W.0114.210806T2259Z-210806T2345Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
359 PM MST Fri Aug 6 2021
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
Northwestern Cochise County in southeastern Arizona...
* Until 445 PM MST.
* At 359 PM MST, a severe thunderstorm was located 7 miles north of
St. David, or 8 miles northeast of Benson, moving west at 5 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...
Benson, St. David, Dragoon, Kartchner Caverns State Park and Texas
Canyon.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3221 11005 3188 10995 3181 11034 3215 11040
TIME...MOT...LOC 2259Z 082DEG 5KT 3200 11018
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RH1 follow-up statement
227
WWUS55 KTWC 062343
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
443 PM MST Fri Aug 6 2021
AZC003-062352-
/O.EXP.KTWC.SV.W.0114.000000T0000Z-210806T2345Z/
Cochise-
443 PM MST Fri Aug 6 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTHWESTERN COCHISE COUNTY
WILL EXPIRE AT 445 PM MST...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 3221 11005 3188 10995 3181 11034 3215 11040
TIME...MOT...LOC 2342Z 082DEG 5KT 3199 11025
$$
RHThe office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 5, 5:21 PM MST | Special Weather Statement | TWC | Pima | 39 min |
| Aug 6, 12:52 PM MST | Special Weather Statement | TWC | Santa Cruz | 38 min |
| Aug 6, 1:16 PM MST | Areal Flood Advisory | TWC | Cochise, Santa Cruz | 3 hr |
| Aug 6, 1:26 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 34 min |
| Aug 6, 1:58 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 47 min |
| Aug 6, 2:05 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 115 min |
| Aug 6, 2:29 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 31 min |
| Aug 6, 2:36 PM MST | Special Weather Statement | TWC | Pima | 24 min |
| Aug 6, 2:43 PM MST | Areal Flood Advisory | TWC | Graham | 2 hr |
| Aug 6, 2:46 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Graham | 44 min |
| Aug 6, 2:51 PM MST | Special Weather Statement | TWC | Santa Cruz | 24 min |
| Aug 6, 2:57 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 33 min |
| Aug 6, 3:00 PM MST | Areal Flood Advisory | TWC | Santa Cruz | 2 hr |
| Aug 6, 3:10 PM MST | Flash Flood Warning | TWC | Santa Cruz | 3 hr |
| Aug 6, 3:16 PM MST | Areal Flood Advisory | TWC | Pima | 119 min |
| Aug 6, 3:26 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Aug 6, 3:31 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 29 min |
| Aug 6, 3:40 PM MST | Areal Flood Advisory | TWC | Cochise | 3 hr |
| Aug 6, 3:46 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 29 min |
| Aug 6, 3:57 PM MST | Flash Flood Warning | TWC | Pima, Santa Cruz | 4 hr |
| Aug 6, 4:12 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Aug 6, 4:19 PM MST | Areal Flood Advisory | TWC | Cochise | 116 min |
| Aug 6, 4:55 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Aug 6, 4:58 PM MST | Special Weather Statement | TWC | Pima | 32 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.