Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 29, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jul 22, 2012, 12:52 PM MST for Pima County, Arizona. It was in force for 23 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, 12:52 PM MST (19:52 UTC)
- Expired
- Jul 22, 2012, 1:15 PM MST
- In force
- 23 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Pima County, AZ
The radar
The Tucson radar (KEMX), 54 km from the middle of the area, began a volume at 19:54 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, 7.9 hours before the alert went out and 23 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
- 234 J/kg
- Mixed-layer CIN
- -147 J/kg
- Mixed-layer LCL
- 1242 m above ground
- 0-6 km bulk shear
- 10 kt
- 0-1 km storm-relative helicity
- -16 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
993 WUUS55 KTWC 221952 SVRTWC AZC019-222015- /O.NEW.KTWC.SV.W.0029.120722T1952Z-120722T2015Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 1252 PM MST SUN JUL 22 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... EAST CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA... THIS INCLUDES THE CITY OF TUCSON... * UNTIL 115 PM MST * AT 1248 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 12 MILES SOUTH AND SOUTHWEST OF TUCSON...OR 13 MILES NORTH OF GREEN VALLEY...AND MOVING NORTH AT 10 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO TUCSON INTERNATIONAL AIRPORT...SAN XAVIER MISSION...SOUTH TUCSON AND RYAN FIELD. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM. && LAT...LON 3219 11138 3224 11090 3201 11092 3194 11111 TIME...MOT...LOC 1951Z 141DEG 7KT 3203 11107 $$ MEYER
1 follow-up statement
068 WWUS55 KTWC 222000 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 100 PM MST SUN JUL 22 2012 AZC019-222015- /O.CON.KTWC.SV.W.0029.000000T0000Z-120722T2015Z/ PIMA AZ- 100 PM MST SUN JUL 22 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM MST FOR EAST CENTRAL PIMA COUNTY... AT 1254 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SAN XAVIER MISSION... OR 10 MILES SOUTHWEST OF TUCSON...MOVING NORTH AT 10 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM. && LAT...LON 3219 11138 3224 11090 3201 11092 3194 11111 TIME...MOT...LOC 1959Z 141DEG 7KT 3206 11107 $$ 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, 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 |
| Jul 22, 2:39 PM MST | Severe Thunderstorm Warning | TWC | Pima | 51 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.