Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 110, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 12, 2012, 5:20 PM CDT for Gonzales County, Karnes County, Wilson County, Texas. It was in force for 25 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
- Sep 12, 2012, 5:20 PM CDT (22:20 UTC)
- Expired
- Sep 12, 2012, 5:45 PM CDT
- In force
- 25 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
Counties Gonzales County, TX, Karnes County, TX, Wilson County, TX
The radar
The Austin/San Antonio radar (KEWX), 57 km from the middle of the area, began a volume at 22:20 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
Corpus Christi, TX (KCRP), launched 12:00Z, 10.3 hours before the alert went out and 173 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
- 3197 J/kg
- Mixed-layer CIN
- 0 J/kg
- Mixed-layer LCL
- 551 m above ground
- 0-6 km bulk shear
- 4 kt
- 0-1 km storm-relative helicity
- -11 m²/s²
- 0-3 km storm-relative helicity
- 14 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
537 WUUS54 KEWX 122220 SVREWX TXC177-255-493-122245- /O.NEW.KEWX.SV.W.0110.120912T2220Z-120912T2245Z/ BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 520 PM CDT WED SEP 12 2012 THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR... SOUTHWESTERN GONZALES COUNTY... NORTH CENTRAL KARNES COUNTY... EAST CENTRAL WILSON COUNTY... * UNTIL 545 PM CDT. * AT 515 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED 6 MILES SOUTH OF PANDORA...OR 9 MILES NORTHEAST OF KOSCIUSKO...AND MOVING NORTH AT 10 MPH. * SOME LOCATIONS IN THE WARNING INCLUDE NIXON. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. && LAT...LON 2925 9794 2932 9774 2918 9769 2912 9786 TIME...MOT...LOC 2219Z 158DEG 9KT 2918 9781 $$
1 follow-up statement
021 WWUS54 KEWX 122233 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 533 PM CDT WED SEP 12 2012 TXC177-255-493-122245- /O.CON.KEWX.SV.W.0110.000000T0000Z-120912T2245Z/ GONZALES TX-WILSON TX-KARNES TX- 533 PM CDT WED SEP 12 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 545 PM CDT FOR NORTH CENTRAL KARNES...EAST CENTRAL WILSON AND SOUTHWESTERN GONZALES COUNTIES... AT 530 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR PANDORA...OR 9 MILES EAST OF STOCKDALE...MOVING NORTH AT 10 MPH. SOME LOCATIONS IN THE WARNING AREA INCLUDE NIXON. LAT...LON 2925 9794 2932 9774 2918 9769 2912 9786 TIME...MOT...LOC 2233Z 158DEG 7KT 2920 9782 $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 12, 4:49 PM CDT | Special Weather Statement | EWX | Gonzales | 41 min |
| Sep 12, 5:48 PM CDT | Special Weather Statement | EWX | Wilson | 57 min |
Nearby
Severe Thunderstorm Warnings in Texas, 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.