Alert archive / Arizona / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 108, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 6, 2021, 1:58 PM MST for Santa Cruz County, Arizona. It was in force for 47 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, 1:58 PM MST (20:58 UTC)
- Expired
- Aug 6, 2021, 2:45 PM MST
- In force
- 47 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
County Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 49 km from the middle of the area, began a volume at 21:00 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, 9.0 hours before the alert went out and 79 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.
657 WUUS55 KTWC 062058 SVRTWC AZC023-062145- /O.NEW.KTWC.SV.W.0108.210806T2058Z-210806T2145Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service Tucson AZ 158 PM MST Fri Aug 6 2021 The National Weather Service in Tucson has issued a * Severe Thunderstorm Warning for... Southeastern Santa Cruz County in southeastern Arizona... * Until 245 PM MST. * At 157 PM MST, a severe thunderstorm was located near Patagonia, or 15 miles northeast of Nogales, moving west at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Locations impacted include... Patagonia, Nogales International Airport, Patagonia Lake State Park, Kino Springs and Lochiel. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3158 11090 3154 11059 3133 11060 3133 11088 TIME...MOT...LOC 2057Z 095DEG 12KT 3146 11071 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ RH
2 follow-up statements
194 WWUS55 KTWC 062125 SVSTWC Severe Weather Statement National Weather Service Tucson AZ 225 PM MST Fri Aug 6 2021 AZC023-062145- /O.CON.KTWC.SV.W.0108.000000T0000Z-210806T2145Z/ Santa Cruz- 225 PM MST Fri Aug 6 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 245 PM MST FOR SOUTHEASTERN SANTA CRUZ COUNTY... At 224 PM MST, a severe thunderstorm was located near Patagonia, or 10 miles northeast of Nogales, moving west at 15 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Patagonia, Nogales International Airport, Patagonia Lake State Park and Kino Springs. PRECAUTIONARY/PREPAREDNESS ACTIONS... For your protection move to an interior room on the lowest floor of a building. && LAT...LON 3155 11063 3135 11065 3135 11088 3158 11090 TIME...MOT...LOC 2124Z 095DEG 12KT 3147 11082 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ RH
681
WWUS55 KTWC 062140
SVSTWC
Severe Weather Statement
National Weather Service Tucson AZ
240 PM MST Fri Aug 6 2021
AZC023-062149-
/O.EXP.KTWC.SV.W.0108.000000T0000Z-210806T2145Z/
Santa Cruz-
240 PM MST Fri Aug 6 2021
...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN SANTA CRUZ COUNTY
WILL EXPIRE AT 245 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 3155 11063 3135 11065 3135 11088 3158 11090
TIME...MOT...LOC 2139Z 095DEG 12KT 3147 11088
$$
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, 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, 3:59 PM MST | Severe Thunderstorm Warning | TWC | Cochise | 46 min |
| 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.