Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 31, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 22, 2012, 2:39 PM MST for Pima County, Arizona. It was in force for 51 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 22, 2012, 2:39 PM MST (21:39 UTC)
- Expired
- Jul 22, 2012, 3:30 PM MST
- In force
- 51 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Pima County, AZ
The radar
The Phoenix radar (KIWA), 157 km from the middle of the area, began a volume at 21:41 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
Phoenix, AZ (KPSR), launched 12:00Z, 9.7 hours before the alert went out and 158 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
- 151 J/kg
- Mixed-layer CIN
- -269 J/kg
- Mixed-layer LCL
- 1950 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 9 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
625 WUUS55 KTWC 222139 SVRTWC AZC019-222230- /O.NEW.KTWC.SV.W.0031.120722T2139Z-120722T2230Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 239 PM MST SUN JUL 22 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... WEST CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA... * UNTIL 330 PM MST * AT 236 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR GU VO...OR 40 MILES WEST OF SELLS...AND MOVING NORTHWEST AT 5 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO KUAKATCH PRECAUTIONARY/PREPAREDNESS ACTIONS... SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH... LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM. && LAT...LON 3212 11278 3230 11253 3209 11240 3194 11252 TIME...MOT...LOC 2139Z 124DEG 5KT 3206 11255 $$ MEYER
2 follow-up statements
141 WWUS55 KTWC 222204 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 304 PM MST SUN JUL 22 2012 AZC019-222230- /O.CON.KTWC.SV.W.0031.000000T0000Z-120722T2230Z/ PIMA AZ- 304 PM MST SUN JUL 22 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 330 PM MST FOR WEST CENTRAL PIMA COUNTY... AT 300 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR GU VO...OR 42 MILES WEST OF SELLS...MOVING NORTHWEST AT 5 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM. && LAT...LON 3212 11278 3230 11253 3209 11240 3194 11252 TIME...MOT...LOC 2204Z 124DEG 5KT 3209 11256 $$ MEYER
166 WWUS55 KTWC 222222 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 322 PM MST SUN JUL 22 2012 AZC019-222231- /O.EXP.KTWC.SV.W.0031.000000T0000Z-120722T2230Z/ PIMA AZ- 322 PM MST SUN JUL 22 2012 ...THE SEVERE THUNDERSTORM WARNING FOR WEST CENTRAL PIMA COUNTY WILL EXPIRE AT 330 PM MST... AT 320 PM MST THE THUNDERSTORM NEAR GU VO HAD DIMINISHED TO BELOW SEVERE LEVELS. HEAVY RAINFALL WILL CAUSE NORMALLY DRY WASHES IN THE AREA TO FLOW HEAVILY INTO THE LATE AFTERNOON HOURS. LAT...LON 3212 11278 3230 11253 3209 11240 3194 11252 TIME...MOT...LOC 2221Z 124DEG 5KT 3210 11258 $$ MEYER
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 21, 6:05 PM MST | Severe Thunderstorm Warning | TWC | Pima | 40 min |
| Jul 21, 6:17 PM MST | Areal Flood Advisory | TWC | Pima | 118 min |
| Jul 22, 11:44 AM MST | Special Weather Statement | TWC | Santa Cruz | 31 min |
| Jul 22, 12:27 PM MST | Special Weather Statement | TWC | Pinal | 48 min |
| Jul 22, 12:40 PM MST | Special Weather Statement | TWC | Santa Cruz | 50 min |
| Jul 22, 12:52 PM MST | Severe Thunderstorm Warning | TWC | Pima | 23 min |
| Jul 22, 1:15 PM MST | Severe Thunderstorm Warning | TWC | Pima | 60 min |
| Jul 22, 1:30 PM MST | Dust Storm Warning | TWC | Pima, Pinal | 3 hr |
| Jul 22, 1:36 PM MST | Special Weather Statement | TWC | 39 min | |
| Jul 22, 1:56 PM MST | Flash Flood Warning | TWC | Pima | 92 min |
Nearby
Severe Thunderstorm Warnings in Arizona, 2012Every severe thunderstorm warning in 2012
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.