Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 65, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Aug 13, 2012, 4:10 PM MST for Pima County, Arizona. It was in force for 35 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 13, 2012, 4:10 PM MST (23:10 UTC)
- Expired
- Aug 13, 2012, 4:45 PM MST
- In force
- 35 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
County Pima County, AZ
The radar
The Phoenix radar (KIWA), 120 km from the middle of the area, began a volume at 23:11 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
Phoenix, AZ (KPSR), launched 12:00Z, 11.2 hours before the alert went out and 122 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
- 12 J/kg
- Mixed-layer CIN
- -417 J/kg
- Mixed-layer LCL
- 3880 m above ground
- 0-6 km bulk shear
- 12 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 9 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
007 WUUS55 KTWC 132310 SVRTWC AZC019-132345- /O.NEW.KTWC.SV.W.0065.120813T2310Z-120813T2345Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 410 PM MST MON AUG 13 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTH CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA... * UNTIL 445 PM MST * AT 403 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 VAYA CHIN...OR 35 MILES NORTHWEST OF SELLS...AND MOVING NORTH AT 5 MPH. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO VENTANA 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 3250 11246 3250 11217 3219 11220 3219 11246 TIME...MOT...LOC 2310Z 184DEG 5KT 3231 11227 $$
2 follow-up statements
863 WWUS55 KTWC 132321 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 421 PM MST MON AUG 13 2012 AZC019-132345- /O.CON.KTWC.SV.W.0065.000000T0000Z-120813T2345Z/ PIMA AZ- 421 PM MST MON AUG 13 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 445 PM MST FOR NORTH CENTRAL PIMA COUNTY... AT 418 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR VAYA CHIN...OR 35 MILES NORTHWEST OF SELLS...MOVING NORTH AT 5 MPH. LAT...LON 3250 11246 3250 11217 3219 11220 3219 11246 TIME...MOT...LOC 2321Z 184DEG 5KT 3230 11227 $$
643 WWUS55 KTWC 132349 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 449 PM MST MON AUG 13 2012 AZC019-132359- /O.EXP.KTWC.SV.W.0065.000000T0000Z-120813T2345Z/ PIMA AZ- 449 PM MST MON AUG 13 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL PIMA COUNTY HAS EXPIRED... THE STORM WAS NO LONGER SEVERE. LAT...LON 3250 11246 3250 11217 3219 11220 3219 11246 TIME...MOT...LOC 2321Z 184DEG 5KT 3230 11227 $$
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 13, 2:49 PM MST | Severe Thunderstorm Warning | TWC | Pima | 26 min |
| Aug 13, 3:35 PM MST | Special Weather Statement | TWC | Pima | 40 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.