Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 21, NWS Phoenix, AZ
NWS Phoenix, AZ issued this severe thunderstorm warning at Jul 28, 2012, 3:43 PM MST for Pinal County, Arizona. It was in force for 32 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
- Jul 28, 2012, 3:43 PM MST (22:43 UTC)
- Expired
- Jul 28, 2012, 4:15 PM MST
- In force
- 32 min
- Issued by
- NWS Phoenix, AZ
- Area
- Storm-based polygon
County Pinal County, AZ
The radar
The Phoenix radar (KIWA), 28 km from the middle of the area, began a volume at 22:43 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, 10.7 hours before the alert went out and 59 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
- 44 J/kg
- Mixed-layer CIN
- -207 J/kg
- Mixed-layer LCL
- 2540 m above ground
- 0-6 km bulk shear
- 2 kt
- 0-1 km storm-relative helicity
- -5 m²/s²
- 0-3 km storm-relative helicity
- 62 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
478 WUUS55 KPSR 282243 SVRPSR AZC021-282315- /O.NEW.KPSR.SV.W.0021.120728T2243Z-120728T2315Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE PHOENIX AZ 343 PM MST SAT JUL 28 2012 THE NATIONAL WEATHER SERVICE IN PHOENIX HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... NORTH CENTRAL PINAL COUNTY IN SOUTH CENTRAL ARIZONA... INCLUDING FLORENCE JUNCTION AND NEARBY QUEEN VALLEY * UNTIL 415 PM MST * AT 334 PM MST...NATIONAL WEATHER SERVICE METEOROLOGISTS DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. IN ADDITION...DENSE BLOWING DUST MAY ACCOMPANY THIS SEVERE STORM. THIS STORM WAS LOCATED 5 MILES SOUTHEAST OF FLORENCE JUNCTION...OR 10 MILES SOUTHWEST OF SUPERIOR...AND MOVING NORTHWEST AT 10 MPH. STRONG WIND GUSTS FROM THESE STORMS MOVING NORTHWEST...WILL LIKELY GENERATE ADDITIONAL STRONG THUNDERSTORMS AND STRONG WIND GUSTS. * OTHER LOCATIONS IN THE WARNING INCLUDE BUT ARE NOT LIMITED TO QUEEN VALLEY AND KINGS RANCH LAT...LON 3317 11155 3343 11145 3326 11114 3308 11123 TIME...MOT...LOC 2241Z 113DEG 10KT 3321 11128 $$ HV
1 follow-up statement
613 WWUS55 KPSR 282316 SVSPSR SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE PHOENIX AZ 416 PM MST SAT JUL 28 2012 AZC021-282324- /O.EXP.KPSR.SV.W.0021.000000T0000Z-120728T2315Z/ PINAL AZ- 416 PM MST SAT JUL 28 2012 ...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL PINAL COUNTY INCLUDING NEARBY FLORENCE JUNCTION AND QUEEN VALLEY EXPIRED AT 415 PM MST... ALTHOUGH THUNDERSTORMS CONTINUE IN THE AREA...THE THREAT FOR SEVERE THUNDERSTORM WINDS HAVE ENDED. A CHANCE OF SHOWERS AND THUNDER STORMS WILL CONTINUE INTO THE EVENING HOURS. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY. THEY WILL RELAY YOUR REPORT TO THE NATIONAL WEATHER SERVICE FORECAST OFFICE. LAT...LON 3317 11155 3343 11145 3326 11114 3308 11123 TIME...MOT...LOC 2314Z 113DEG 10KT 3325 11138 $$ HV
The office that day
Everything else NWS Phoenix, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 4:09 PM MST | Flash Flood Warning | PSR | Gila, Maricopa | 3 hr |
| Jul 28, 4:32 PM MST | Areal Flood Advisory | PSR | Gila | 118 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.