Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 50, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 11, 2021, 5:08 PM MST for Greenlee County, Arizona. It was in force for 37 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 11, 2021, 5:08 PM MST (00:08 UTC)
- Expired
- Jul 11, 2021, 5:45 PM MST
- In force
- 37 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Greenlee County, AZ
The radar
The Tucson radar (KEMX), 187 km from the middle of the area, began a volume at 00:08 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 watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Jul 11, 1:23 PM MST | Severe Thunderstorm Watch | SPC | 8 hr |
The nearest sounding before it
Tuscon, AZ (KTUS), launched 00:00Z, 0.1 hours before the alert went out and 186 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
- 727 J/kg
- Mixed-layer CIN
- -229 J/kg
- Mixed-layer LCL
- 3094 m above ground
- 0-6 km bulk shear
- 19 kt
- 0-1 km storm-relative helicity
- -31 m²/s²
- 0-3 km storm-relative helicity
- 28 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.1
The text
As transmitted.
788
WUUS55 KTWC 120008
SVRTWC
AZC011-120045-
/O.NEW.KTWC.SV.W.0050.210712T0008Z-210712T0045Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
508 PM MST Sun Jul 11 2021
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
Central Greenlee County in southeastern Arizona...
* Until 545 PM MST.
* At 507 PM MST, a severe thunderstorm was located 10 miles north of
Morenci, or 11 miles north of Clifton, moving south at 25 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...
Clifton, Morenci, York, Three Way and Guthrie.
This includes the following highways...
Route 75 between mile markers 391 and 398.
Route 78 between mile markers 155 and 167.
Route 191 between mile markers 151 and 182, and between mile markers
185 and 189.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3328 10938 3324 10908 3281 10911 3301 10942
TIME...MOT...LOC 0007Z 006DEG 23KT 3320 10929
HAIL...1.00IN
WIND...60MPH
$$1 follow-up statement
575
WWUS55 KTWC 120042
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
542 PM MST Sun Jul 11 2021
AZC011-120051-
/O.EXP.KTWC.SV.W.0050.000000T0000Z-210712T0045Z/
Greenlee-
542 PM MST Sun Jul 11 2021
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL GREENLEE COUNTY WILL
EXPIRE AT 545 PM MST...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
A Severe Thunderstorm Watch remains in effect until 900 PM MST for
southeastern Arizona.
LAT...LON 3328 10938 3324 10908 3281 10911 3301 10942
TIME...MOT...LOC 0041Z 006DEG 23KT 3299 10932
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 11, 6:51 PM MST | Special Weather Statement | TWC | Cochise | 39 min |
| Jul 11, 6:52 PM MST | Severe Thunderstorm Warning | TWC | Graham | 38 min |
| Jul 11, 7:25 PM MST | Special Weather Statement | TWC | Cochise | 50 min |
| Jul 11, 9:22 PM MST | Dust Storm Warning | TWC | Cochise, Graham, Greenlee | 53 min |
| Jul 11, 9:59 PM MST | Dust Storm Warning | TWC | Cochise, Graham, Greenlee | 61 min |
| Jul 11, 11:17 PM MST | Special Weather Statement | TWC | Cochise | 28 min |
| Jul 12, 1:56 PM MST | Flash Flood Watch | TWC | Cochise, Graham, Greenlee, Pima, Pinal, Santa Cruz | 4 days |
| Jul 12, 1:59 PM MST | Blowing Dust Advisory | TWC | Pima, Pinal | 9 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.