Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 52, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 8, 2012, 4:17 PM MST for Pima County, Arizona. It was in force for 58 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, 4:17 PM MST (23:17 UTC)
- Expired
- Aug 8, 2012, 5:15 PM MST
- In force
- 58 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Pima County, AZ
The radar
The Tucson radar (KEMX), 52 km from the middle of the area, began a volume at 23:18 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, 11.3 hours before the alert went out and 18 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.
182 WUUS55 KTWC 082317 SVRTWC AZC019-090015- /O.NEW.KTWC.SV.W.0052.120808T2317Z-120809T0015Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 417 PM MST WED AUG 8 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTHEASTERN PIMA COUNTY IN SOUTH CENTRAL ARIZONA... THIS INCLUDES THE CITIES OF...TUCSON...ORO VALLEY... * UNTIL 515 PM MST * AT 412 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 15 MILES EAST OF DOWNTOWN TUCSON...AND MOVING SOUTHWEST AT 10 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO SEVEN FALLS...SABINO CANYON...SAGUARO NATIONAL PARK EAST...TUCSON INTERNATIONAL AIRPORT...SOUTH TUCSON...SAN XAVIER MISSION...RITA RANCH...DAVIS-MONTHAN AIR FORCE BASE...CATALINA STATE PARK AND CATALINA FOOTHILLS. STRONG WINDS MAY PRECEDE THE RAIN. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO DAMAGING WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...LIGHTNING IS CLOSE ENOUGH TO STRIKE YOU. && LAT...LON 3249 11107 3249 11058 3210 11049 3204 11103 TIME...MOT...LOC 2316Z 063DEG 9KT 3229 11070 $$ KD
2 follow-up statements
768 WWUS55 KTWC 082345 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 445 PM MST WED AUG 8 2012 AZC019-090015- /O.CON.KTWC.SV.W.0052.000000T0000Z-120809T0015Z/ PIMA AZ- 445 PM MST WED AUG 8 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 515 PM MST FOR NORTHEASTERN PIMA COUNTY... AT 436 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR MOUNT LEMMON/SUMMERHAVEN...OR 13 MILES EAST OF ORO VALLEY...MOVING SOUTHWEST AT 10 MPH. THE STORM THAT ORIGINALLY PROMPTED THE WARNING HAD WEAKENED BUT GUSTY OUTFLOWS ARE STILL POSSIBLE N THE CITY OF TUCSON. PRECAUTIONARY/PREPAREDNESS ACTIONS... IN ADDITION TO DAMAGING WINDS...FREQUENT CLOUD TO GROUND LIGHTNING IS OCCURRING WITH THIS STORM. MOVE INDOORS IMMEDIATELY! IF YOU CAN HEAR THUNDER...LIGHTNING IS CLOSE ENOUGH TO STRIKE YOU. && LAT...LON 3249 11107 3249 11058 3210 11049 3204 11103 TIME...MOT...LOC 2344Z 054DEG 9KT 3244 11077 $$ KD
626 WWUS55 KTWC 090012 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 512 PM MST WED AUG 8 2012 AZC019-090019- /O.EXP.KTWC.SV.W.0052.000000T0000Z-120809T0015Z/ PIMA AZ- 512 PM MST WED AUG 8 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTHEASTERN PIMA COUNTY WILL EXPIRE AT 515 PM MST... THE STORM THAT PROMPTED THE WARNING HAD WEAKENED AND WAS NO LONGER CONSIDERED SEVERE. REPORT SEVERE WEATHER OR WEATHER RELATED DAMAGE TO THE NATIONAL WEATHER SERVICE. LAT...LON 3249 11107 3249 11058 3210 11049 3204 11103 TIME...MOT...LOC 0009Z 054DEG 9KT 3240 11083 $$ KD
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, 4:31 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.