Alert archive / Arizona / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 5, NWS Tucson, AZ
NWS Tucson, AZ issued this severe thunderstorm warning at Jun 28, 2012, 5:28 PM MST for Pima County, Santa Cruz 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
- Jun 28, 2012, 5:28 PM MST (00:28 UTC)
- Expired
- Jun 28, 2012, 6:00 PM MST
- In force
- 32 min
- Issued by
- NWS Tucson, AZ
- Area
- Storm-based polygon
Counties Pima County, AZ, Santa Cruz County, AZ
The radar
The Tucson radar (KEMX), 49 km from the middle of the area, began a volume at 00:30 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 (KTUS), launched 00:00Z, 0.5 hours before the alert went out and 51 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
- 32 J/kg
- Mixed-layer CIN
- -146 J/kg
- Mixed-layer LCL
- 3575 m above ground
- 0-6 km bulk shear
- 15 kt
- 0-1 km storm-relative helicity
- -48 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
891 WUUS55 KTWC 290028 SVRTWC AZC019-023-290100- /O.NEW.KTWC.SV.W.0005.120629T0028Z-120629T0100Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE TUCSON AZ 528 PM MST THU JUN 28 2012 THE NATIONAL WEATHER SERVICE IN TUCSON HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTH CENTRAL PIMA COUNTY IN SOUTH CENTRAL ARIZONA... THIS INCLUDES THE CITY OF GREEN VALLEY... NORTH CENTRAL SANTA CRUZ COUNTY IN SOUTHEAST ARIZONA... * UNTIL 600 PM MST * AT 521 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 9 MILES SOUTHWEST OF GREEN VALLEY...AND MOVING WEST AT 25 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 3159 11119 3196 11136 3191 11096 3169 11091 TIME...MOT...LOC 0027Z 092DEG 20KT 3176 11116 $$
2 follow-up statements
906 WWUS55 KTWC 290050 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 550 PM MST THU JUN 28 2012 AZC019-023-290100- /O.CON.KTWC.SV.W.0005.000000T0000Z-120629T0100Z/ SANTA CRUZ AZ-PIMA AZ- 550 PM MST THU JUN 28 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 600 PM MST FOR SOUTH CENTRAL PIMA AND NORTH CENTRAL SANTA CRUZ COUNTIES... AT 548 PM MST...NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO INDICATE A SEVERE THUNDERSTORM 6 MILES NORTHWEST OF ARIVACA JUNCTION... OR 8 MILES SOUTHWEST OF GREEN VALLEY...MOVING WEST AT 10 MPH. THIS STORM CONTINUES TO WEAKEN...BUT IS STILL CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH...ESPECIALLY TO THE WEST OF THE STORM ITSELF. LAT...LON 3159 11119 3196 11136 3191 11096 3169 11091 TIME...MOT...LOC 0048Z 082DEG 8KT 3179 11115 $$
626 WWUS55 KTWC 290059 SVSTWC SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE TUCSON AZ 559 PM MST THU JUN 28 2012 AZC019-023-290108- /O.EXP.KTWC.SV.W.0005.000000T0000Z-120629T0100Z/ SANTA CRUZ AZ-PIMA AZ- 559 PM MST THU JUN 28 2012 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTH CENTRAL PIMA AND NORTH CENTRAL SANTA CRUZ COUNTIES WILL EXPIRE AT 600 PM MST... THE STORM THAT PROMPTED THE SEVERE THUNDERSTORM WARNING HAS WEAKENED BELOW SEVERE LEVELS. THEREFORE...THE SEVERE THUNDERSTORMS WARNING HAS BEEN ALLOWED TO EXPIRE AT 6 PM MST. HOWEVER...A STRONG THUNDERSTORM 10 MILES SOUTH OF THREE POINTS REMAINS STRONG...AND IS CAPABLE OF PRODUCING WINDS TO 50 MPH AND SMALL HAIL. LAT...LON 3159 11119 3196 11136 3191 11096 3169 11091 TIME...MOT...LOC 0058Z 082DEG 8KT 3179 11118 $$
The office that day
Everything else NWS Tucson, AZ issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jun 28, 5:27 PM MST | Areal Flood Advisory | TWC | Pima, Santa Cruz | 2 hr |
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.