Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 129, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 8, 2021, 6:14 PM MST for Cochise County, Arizona. It was in force for 20 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 8, 2021, 6:14 PM MST (01:14 UTC)
- Expired
- Aug 8, 2021, 6:34 PM MST
- In force
- 20 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), 71 km from the middle of the area, began a volume at 01:18 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, 1.2 hours before the alert went out and 108 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
- 742 J/kg
- Mixed-layer CIN
- -62 J/kg
- Mixed-layer LCL
- 2449 m above ground
- 0-6 km bulk shear
- 9 kt
- 0-1 km storm-relative helicity
- -60 m²/s²
- 0-3 km storm-relative helicity
- 31 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
542
WUUS55 KTWC 090114
SVRTWC
AZC003-090200-
/O.NEW.KTWC.SV.W.0129.210809T0114Z-210809T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
614 PM MST Sun Aug 8 2021
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
South central Cochise County in southeastern Arizona...
* Until 700 PM MST.
* At 614 PM MST, a severe thunderstorm was located 9 miles southeast
of Tombstone moving west at 10 mph.
HAZARD...60 mph wind gusts, quarter size hail and patchy blowing
dust.
SOURCE...Radar indicated.
IMPACT...Hail damage to vehicles is expected. Expect wind damage
to roofs, siding, and trees.
* Locations impacted include...
Tombstone.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3167 10984 3157 10987 3158 11011 3174 11005
TIME...MOT...LOC 0114Z 100DEG 10KT 3164 10993
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$1 follow-up statement
707
WWUS55 KTWC 090134
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
634 PM MST Sun Aug 8 2021
AZC003-090143-
/O.CAN.KTWC.SV.W.0129.000000T0000Z-210809T0200Z/
Cochise-
634 PM MST Sun Aug 8 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL COCHISE COUNTY
IS CANCELLED...
The storm southeast of Tombstone which prompted the warning has
weakened below severe limits, and no longer poses an immediate
threat to life or property. Therefore, the warning has been
cancelled. However gusty winds and heavy rain are still possible
with this thunderstorm.
LAT...LON 3167 10984 3157 10987 3158 11011 3174 11005
TIME...MOT...LOC 0124Z 100DEG 10KT 3165 10999
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 5:03 PM MST | Special Weather Statement | TWC | Cochise | 42 min |
| Aug 8, 5:18 PM MST | Special Weather Statement | TWC | Santa Cruz | 27 min |
| Aug 8, 5:22 PM MST | Special Weather Statement | TWC | Pima | 38 min |
| Aug 8, 5:22 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 38 min |
| Aug 8, 5:28 PM MST | Special Weather Statement | TWC | Cochise | 47 min |
| Aug 8, 5:51 PM MST | Special Weather Statement | TWC | Pima | 24 min |
| Aug 8, 6:09 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 66 min |
| Aug 8, 6:10 PM MST | Areal Flood Advisory | TWC | Pima | 2 hr |
| Aug 8, 6:13 PM MST | Special Weather Statement | TWC | Pima | 32 min |
| Aug 8, 6:19 PM MST | Severe Thunderstorm Warning | TWC | Pima | 41 min |
| Aug 8, 6:37 PM MST | Areal Flood Advisory | TWC | Cochise | 5 hr |
| Aug 8, 6:46 PM MST | Flash Flood Warning | TWC | Cochise | 5 hr |
| Aug 8, 6:56 PM MST | Dust Storm Advisory | TWC | Cochise, Pima, Pinal | 70 min |
| Aug 8, 8:45 PM MST | Severe Thunderstorm Warning | TWC | Pima, Santa Cruz | 45 min |
| Aug 8, 9:03 PM MST | Flash Flood Warning | TWC | Pima | 117 min |
| Aug 8, 9:28 PM MST | Areal Flood Advisory | TWC | Cochise, Pima, 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.