Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 95, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Sep 2, 2012, 3:25 PM MST for Pima County, Pinal County, Arizona. It was in force for 50 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
- Sep 2, 2012, 3:25 PM MST (22:25 UTC)
- Expired
- Sep 2, 2012, 4:15 PM MST
- In force
- 50 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
Counties Pima County, AZ, Pinal County, AZ
The radar
The Tucson radar (KEMX), 69 km from the middle of the area, began a volume at 22:25 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, 10.4 hours before the alert went out and 31 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
- 166 J/kg
- Mixed-layer CIN
- -271 J/kg
- Mixed-layer LCL
- 2049 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 45 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
169 WUUS55 KTWC 022225 SVRTWC AZC019-021-022315- /O.NEW.KTWC.SV.W.0095.120902T2225Z-120902T2315Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 325 PM MST SUN SEP 2 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN PIMA COUNTY IN SOUTH CENTRAL ARIZONA... THIS INCLUDES THE CITY OF ORO VALLEY... EXTREME SOUTH CENTRAL PINAL COUNTY IN SOUTH CENTRAL ARIZONA... * UNTIL 415 PM MST * AT 318 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 ORO VALLEY...AND MOVING NORTHWEST AT 5 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO CATALINA AND DOVE MOUNTAIN. 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 3242 11116 3259 11101 3244 11077 3228 11093 TIME...MOT...LOC 2224Z 117DEG 3KT 3241 11098 $$ MEYER
1 follow-up statement
600 WWUS55 KTWC 022246 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 346 PM MST SUN SEP 2 2012 AZC019-021-022315- /O.CON.KTWC.SV.W.0095.000000T0000Z-120902T2315Z/ PIMA AZ-PINAL AZ- 346 PM MST SUN SEP 2 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 415 PM MST FOR EXTREME SOUTH CENTRAL PINAL AND NORTHEASTERN PIMA COUNTIES... AT 342 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE TWO SEVERE THUNDERSTORMS CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH IN THE ORO VALLEY AREA. THE FIRST STORM WAS LOCATED NEAR AND WEST OF ORO VALLEY...WITH A SECOND STORM JUST SOUTHEAST AND EAST OF ORO VALLEY NEAR CATALINA STATE PARK AND NORTHERN CATALINA FOOTHILLS. STORM MOVEMENT WAS TO THE NORTHWEST AT 5 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH... LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THESE STORMS. && LAT...LON 3242 11116 3259 11101 3244 11077 3228 11093 TIME...MOT...LOC 2244Z 117DEG 3KT 3244 11100 $$ MEYER
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 1, 7:50 PM MST | Areal Flood Advisory | TWC | Pima | 115 min |
| Sep 2, 2:10 PM MST | Special Weather Statement | TWC | Santa Cruz | 50 min |
| Sep 2, 3:19 PM MST | Special Weather Statement | TWC | 56 min | |
| Sep 2, 3:31 PM MST | Severe Thunderstorm Warning | TWC | Pima | 44 min |
| Sep 2, 3:35 PM MST | Areal Flood Advisory | TWC | Pima | 85 min |
| Sep 2, 3:43 PM MST | Special Weather Statement | TWC | Pima | 47 min |
| Sep 2, 3:59 PM MST | Areal Flood Advisory | TWC | Pima | 91 min |
| Sep 2, 4:15 PM MST | Areal Flood Advisory | TWC | Pima, Santa Cruz | 3 hr |
| Sep 2, 4:15 PM MST | Severe Thunderstorm Warning | TWC | Pima | 23 min |
| Sep 2, 4:47 PM MST | Severe Thunderstorm Warning | TWC | Pima | 43 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.