Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 130, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 8, 2021, 6:19 PM MST for Pima County, Arizona. It was in force for 41 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, 6:19 PM MST (01:19 UTC)
- Expired
- Aug 8, 2021, 7:00 PM MST
- In force
- 41 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Pima County, AZ
The radar
The Phoenix radar (KIWA), 105 km from the middle of the area, began a volume at 01:22 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, 1.3 hours before the alert went out and 81 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.
633
WUUS55 KTWC 090119
SVRTWC
AZC019-090200-
/O.NEW.KTWC.SV.W.0130.210809T0119Z-210809T0200Z/
BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service Tucson AZ
619 PM MST Sun Aug 8 2021
The National Weather Service in Tucson has issued a
* Severe Thunderstorm Warning for...
North central Pima County in southeastern Arizona...
* Until 700 PM MST.
* At 618 PM MST, a severe thunderstorm was located 17 miles east of
Santa Rosa, or 33 miles north of Sells, moving southeast at 10 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...
Queens Well.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
For your protection move to an interior room on the lowest floor of a
building.
&&
LAT...LON 3238 11188 3250 11173 3233 11148 3215 11170
TIME...MOT...LOC 0118Z 316DEG 8KT 3239 11175
HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...1.00 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH
$$
RH1 follow-up statement
112
WWUS55 KTWC 090155
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
655 PM MST Sun Aug 8 2021
AZC019-090205-
/O.EXP.KTWC.SV.W.0130.000000T0000Z-210809T0200Z/
Pima-
655 PM MST Sun Aug 8 2021
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL PIMA COUNTY WILL
EXPIRE AT 700 PM MST...
The storm which prompted the warning has weakened below severe
limits, and no longer poses an immediate threat to life or property.
Therefore, the warning will be allowed to expire.
LAT...LON 3238 11188 3250 11173 3233 11148 3215 11170
TIME...MOT...LOC 0155Z 316DEG 8KT 3233 11169
$$
RHThe 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, 6:14 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 20 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.