Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 47, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 6, 2012, 9:46 PM MST for Santa Cruz County, Arizona. It was in force for 21 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 6, 2012, 9:46 PM MST (04:46 UTC)
- Expired
- Aug 6, 2012, 10:07 PM MST
- In force
- 21 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 70 km from the middle of the area, began a volume at 04:47 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, 4.8 hours before the alert went out and 88 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
- 393 J/kg
- Mixed-layer CIN
- -14 J/kg
- Mixed-layer LCL
- 3301 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 12 m²/s²
- 0-3 km storm-relative helicity
- 41 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
398
WUUS55 KTWC 070446
SVRTWC
AZC023-070530-
/O.NEW.KTWC.SV.W.0047.120807T0446Z-120807T0530Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TUCSON AZ
946 PM MST MON AUG 6 2012
THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA...
THIS INCLUDES THE CITY OF NOGALES...
* UNTIL 1030 PM MST
* AT 937 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 NOGALES...AND MOVING WEST
AT 20 MPH.
* OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO RIO
RICO AND PENA BLANCA LAKE.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
SEEK SHELTER INDOORS. EXPECT DAMAGING WINDS IN EXCESS OF 60 MPH...
LARGE HAIL...FREQUENT LIGHTNING...AND HEAVY RAIN WITH THIS STORM.
THIS STORM HAS A HISTORY OF PRODUCING DESTRUCTIVE WINDS. SEEK
SHELTER NOW INSIDE A STURDY STRUCTURE AND STAY AWAY FROM WINDOWS!
&&
LAT...LON 3133 11111 3134 11113 3136 11116 3136 11121
3138 11123 3157 11112 3154 11077 3132 11079
TIME...MOT...LOC 0446Z 086DEG 19KT 3140 11094
$$
GL1 follow-up statement
005
WWUS55 KTWC 070507
SVSTWC
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE TUCSON AZ
1007 PM MST MON AUG 6 2012
AZC023-070517-
/O.CAN.KTWC.SV.W.0047.000000T0000Z-120807T0530Z/
SANTA CRUZ AZ-
1007 PM MST MON AUG 6 2012
...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL SANTA CRUZ COUNTY IS
CANCELLED...
DOPPLER RADAR SHOWED THAT THE SEVERE THUNDERSTORM HAD WEAKENED
CONSIDERABLY BELOW SEVERE LIMITS. LIGHT TO MODERATE RAIN WITH WIND
GUSTS UP TO 30 MPH WILL CONTINUE THROUGH 1030 PM MST.
LAT...LON 3133 11111 3134 11113 3136 11116 3136 11121
3138 11123 3157 11112 3154 11077 3132 11079
TIME...MOT...LOC 0507Z 086DEG 19KT 3139 11107
$$The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 6, 5:43 PM MST | Special Weather Statement | TWC | 47 min | |
| Aug 6, 6:57 PM MST | Special Weather Statement | TWC | 48 min | |
| Aug 6, 7:15 PM MST | Severe Thunderstorm Warning | TWC | Pima | 30 min |
| Aug 6, 7:41 PM MST | Severe Thunderstorm Warning | TWC | Pima, Pinal | 34 min |
| Aug 6, 8:17 PM MST | Special Weather Statement | TWC | Pinal | 28 min |
| Aug 6, 9:22 PM MST | Special Weather Statement | TWC | Santa Cruz | 53 min |
| Aug 6, 9:49 PM MST | Special Weather Statement | TWC | 26 min | |
| Aug 6, 10:23 PM MST | Special Weather Statement | TWC | Pinal | 52 min |
| Aug 6, 11:33 PM MST | Special Weather Statement | TWC | Pima | 42 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.