Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 201, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Oct 5, 2021, 12:54 PM MST for Cochise County, Arizona. It was in force for 36 min. 1 report came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Oct 5, 2021, 12:54 PM MST (19:54 UTC)
- Expired
- Oct 5, 2021, 1:30 PM MST
- In force
- 36 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), 63 km from the middle of the area, began a volume at 19:56 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Oct 5, 1:12 PM MST | HAIL 0.7 | 16 Ssw Willcox, AZ | WINDS TO 50 MPH AND DIME SIZED HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Tuscon, AZ (KTUS), launched 12:00Z, 7.9 hours before the alert went out and 88 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
- 4 J/kg
- Mixed-layer CIN
- -376 J/kg
- Mixed-layer LCL
- 2029 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 114 m²/s²
- 0-3 km storm-relative helicity
- 129 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted.
964
WUUS55 KTWC 051954
SVRTWC
AZC003-052030-
/O.NEW.KTWC.SV.W.0201.211005T1954Z-211005T2030Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
1254 PM MST Tue Oct 5 2021
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
Central Cochise County in southeastern Arizona...
* Until 130 PM MST.
* At 1254 PM MST, a severe thunderstorm was located over Dragoon, or
18 miles southwest of Willcox, moving northeast 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...
Dragoon and Cochise.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3193 11002 3196 11010 3219 10998 3214 10977
TIME...MOT...LOC 1954Z 221DEG 16KT 3202 10999
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$1 follow-up statement
174
WWUS55 KTWC 052019
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
119 PM MST Tue Oct 5 2021
AZC003-052030-
/O.CON.KTWC.SV.W.0201.000000T0000Z-211005T2030Z/
Cochise-
119 PM MST Tue Oct 5 2021
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 130 PM MST
FOR CENTRAL COCHISE COUNTY...
At 118 PM MST, a severe thunderstorm was located 9 miles south of
Willcox, moving northeast at 20 mph.
HAZARD...60 mph wind gusts and quarter size hail.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage to
roofs, siding, and trees.
Locations impacted include...
Dragoon and Cochise.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3193 11002 3196 11010 3219 10998 3214 10977
TIME...MOT...LOC 2018Z 206DEG 19KT 3213 10989
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 5, 12:41 PM MST | Special Weather Statement | TWC | Cochise | 49 min |
| Oct 5, 1:27 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 48 min |
| Oct 5, 1:58 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Graham | 47 min |
| Oct 5, 2:48 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 42 min |
| Oct 5, 3:23 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 52 min |
| Oct 5, 3:32 PM MST | Special Weather Statement | TWC | Graham | 58 min |
| Oct 5, 3:38 PM MST | Severe Thunderstorm Warning | TWC | Pima | 52 min |
| Oct 5, 4:18 PM MST | Severe Thunderstorm Warning | TWC | Graham | 30 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.