Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 48, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 7, 2012, 10:06 PM MST for Santa Cruz County, Arizona. It was in force for 39 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 7, 2012, 10:06 PM MST (05:06 UTC)
- Expired
- Aug 7, 2012, 10:45 PM MST
- In force
- 39 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 30 km from the middle of the area, began a volume at 05:08 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 (KDMA), launched 00:00Z, 5.1 hours before the alert went out and 64 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
- 939 J/kg
- Mixed-layer CIN
- -79 J/kg
- Mixed-layer LCL
- 2973 m above ground
- 0-6 km bulk shear
- 17 kt
- 0-1 km storm-relative helicity
- -19 m²/s²
- 0-3 km storm-relative helicity
- 51 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
439 WUUS55 KTWC 080506 SVRTWC AZC023-080545- /O.NEW.KTWC.SV.W.0048.120808T0506Z-120808T0545Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 1006 PM MST TUE AUG 7 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA... * UNTIL 1045 PM MST * AT 1000 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 ELGIN...OR 15 MILES NORTHWEST OF SIERRA VISTA...AND MOVING WEST AT 15 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SONOITA 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 3154 11082 3173 11083 3172 11046 3159 11047 TIME...MOT...LOC 0506Z 083DEG 15KT 3169 11052 $$ MEYER
2 follow-up statements
199 WWUS55 KTWC 080523 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 1023 PM MST TUE AUG 7 2012 AZC023-080545- /O.CON.KTWC.SV.W.0048.000000T0000Z-120808T0545Z/ SANTA CRUZ AZ- 1023 PM MST TUE AUG 7 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1045 PM MST FOR NORTHEASTERN SANTA CRUZ COUNTY... AT 1018 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SONOITA...OR 21 MILES WEST OF SIERRA VISTA...MOVING WEST AT 20 MPH. PRECAUTIONARY/PREPAREDNESS ACTIONS... SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH... LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM. && LAT...LON 3154 11082 3173 11083 3172 11046 3159 11047 TIME...MOT...LOC 0523Z 084DEG 16KT 3166 11065 $$ MEYER
298 WWUS55 KTWC 080546 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 1046 PM MST TUE AUG 7 2012 AZC023-080555- /O.EXP.KTWC.SV.W.0048.000000T0000Z-120808T0545Z/ SANTA CRUZ AZ- 1046 PM MST TUE AUG 7 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SANTA CRUZ COUNTY HAS EXPIRED... AT 1045 PM MST THE AREA OF THUNDERSTORMS...NOW WEST OF SONOITA...HAD DIMINISHED TO BELOW SEVERE LEVELS. A STRONG OUTFLOW GENERATED BY THE STORMS WILL CONTINUE TO PUSH INTO WESTERN AREAS OF THE COUNTY WITH WIND GUSTS TO 45 OR 50 MPH POSSIBLE. LAT...LON 3154 11082 3173 11083 3172 11046 3159 11047 TIME...MOT...LOC 0523Z 084DEG 16KT 3166 11065 $$ MEYER
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 7, 9:40 PM MST | Special Weather Statement | TWC | Cochise | 50 min |
| Aug 7, 10:11 PM MST | Special Weather Statement | TWC | Santa Cruz | 49 min |
| Aug 7, 10:32 PM MST | Special Weather Statement | TWC | Santa Cruz | 43 min |
| Aug 7, 11:03 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 42 min |
| Aug 8, 3:35 PM MST | Special Weather Statement | TWC | Graham | 25 min |
| Aug 8, 3:35 PM MST | Severe Thunderstorm Warning | TWC | Pima | 40 min |
| Aug 8, 3:41 PM MST | Special Weather Statement | TWC | Cochise | 34 min |
| Aug 8, 4:02 PM MST | Severe Thunderstorm Warning | TWC | Cochise, Santa Cruz | 43 min |
| Aug 8, 4:17 PM MST | Severe Thunderstorm Warning | TWC | Pima | 58 min |
| Aug 8, 4:31 PM MST | Areal Flood Advisory | TWC | Cochise | 67 min |
| Aug 8, 4:46 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 44 min |
| Aug 8, 4:55 PM MST | Severe Thunderstorm Warning | TWC | Pinal | 65 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.