Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 53, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 8, 2012, 4:46 PM MST for Santa Cruz County, Arizona. It was in force for 44 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 8, 2012, 4:46 PM MST (23:46 UTC)
- Expired
- Aug 8, 2012, 5:30 PM MST
- In force
- 44 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 32 km from the middle of the area, began a volume at 23:46 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 12:00Z, 11.8 hours before the alert went out and 68 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
- 80 J/kg
- Mixed-layer CIN
- -373 J/kg
- Mixed-layer LCL
- 2508 m above ground
- 0-6 km bulk shear
- 7 kt
- 0-1 km storm-relative helicity
- -12 m²/s²
- 0-3 km storm-relative helicity
- 122 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
718
WUUS55 KTWC 082346
SVRTWC
AZC023-090030-
/O.NEW.KTWC.SV.W.0053.120808T2346Z-120809T0030Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
446 PM MST WED AUG 8 2012
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHEASTERN SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA...
* UNTIL 530 PM MST
* AT 437 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 SONOITA...OR 22 MILES WEST
OF SIERRA VISTA...AND MOVING SOUTHWEST AT 15 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO
CANELO...PATAGONIA LAKE AND PATAGONIA
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 3161 11051 3148 11048 3148 11092 3172 11089
3172 11054
TIME...MOT...LOC 2345Z 052DEG 13KT 3166 11065
$$2 follow-up statements
495
WWUS55 KTWC 090006
SVSTWC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
506 PM MST WED AUG 8 2012
AZC023-090030-
/O.CON.KTWC.SV.W.0053.000000T0000Z-120809T0030Z/
SANTA CRUZ AZ-
506 PM MST WED AUG 8 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 530 PM MST
FOR NORTHEASTERN SANTA CRUZ COUNTY...
AT 500 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO
INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN
EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SONOITA...OR 23 MILES
NORTHEAST OF NOGALES...MOVING SOUTHWEST AT 15 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM.
&&
LAT...LON 3161 11051 3148 11048 3148 11092 3172 11089
3172 11054
TIME...MOT...LOC 0005Z 052DEG 13KT 3162 11072
$$955
WWUS55 KTWC 090031
SVSTWC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
531 PM MST WED AUG 8 2012
AZC023-090040-
/O.EXP.KTWC.SV.W.0053.000000T0000Z-120809T0030Z/
SANTA CRUZ AZ-
531 PM MST WED AUG 8 2012
...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN SANTA CRUZ COUNTY
HAS EXPIRED...
AT 530 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR DETECTED A
WEAKENING AREA OF THUNDERSTORMS ACROSS NORTHEASTERN SANTA CRUZ
COUNTY. THESE THUNDERSTORMS ARE EXPECTED TO CONTINUE TO WEAKEN AND
THUS THE SEVERE THUNDERSTORM WARNING HAS BEEN ALLOWED TO EXPIRE AT
530 PM.
LAT...LON 3161 11051 3148 11048 3148 11092 3172 11089
3172 11054
TIME...MOT...LOC 0006Z 052DEG 13KT 3162 11072
$$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, 10:06 PM MST | Severe Thunderstorm Warning | TWC | Santa Cruz | 39 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, 4:55 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.