Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 49, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 1, 2012, 9:06 PM CDT for Maverick County, Texas. It was in force for 54 min. 2 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Apr 1, 2012, 9:06 PM CDT (02:06 UTC)
- Expired
- Apr 1, 2012, 10:00 PM CDT
- In force
- 54 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
County Maverick County, TX
The radar
The Laughlin AFB radar (KDFX), 81 km from the middle of the area, began a volume at 02:06 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 1, 9:10 PM CDT | HAIL 1 | Eagle Pass, TX | REPORTED IN THE ELM CREEK AREA JUST NORTH OF EAGLE PASS |
| Apr 1, 9:15 PM CDT | HAIL 1 | Eagle Pass, TX |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 2.1 hours before the alert went out and 102 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
- 2552 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 2272 m above ground
- 0-6 km bulk shear
- 6 kt
- 0-1 km storm-relative helicity
- 6 m²/s²
- 0-3 km storm-relative helicity
- 117 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
452
WUUS54 KEWX 020206
SVREWX
TXC323-020300-
/O.NEW.KEWX.SV.W.0049.120402T0206Z-120402T0300Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
906 PM CDT SUN APR 1 2012
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
MAVERICK COUNTY...
* UNTIL 1000 PM CDT.
* AT 903 PM CDT...NWS RADAR SHOWED AN AREA OF SHOWERS AND
THUNDERSTORMS FROM NEAR NORMANDY TO EAGLE PASS...MOVING
TO THE EAST AT 30 MPH.
THESE THUNDERSTORMS ARE CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND
DAMAGING WINDS IN EXCESS OF 60 MPH.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.
&&
LAT...LON 2827 10030 2831 10030 2838 10036 2849 10037
2853 10042 2858 10041 2867 10052 2874 10052
2881 10055 2883 10058 2896 10061 2902 10013
2819 10014 2819 10021
TIME...MOT...LOC 0203Z 233DEG 13KT 2875 10049
$$1 follow-up statement
666
WWUS54 KEWX 020229
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
929 PM CDT SUN APR 1 2012
TXC323-020300-
/O.CON.KEWX.SV.W.0049.000000T0000Z-120402T0300Z/
MAVERICK TX-
929 PM CDT SUN APR 1 2012
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1000 PM CDT
FOR MAVERICK COUNTY...
AT 927 PM CDT...SEVERE THUNDERSTORMS CAPABLE OF PRODUCING QUARTER
SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH WAS FROM EAST
OF DARLING...IN NORTHERN MAVERICK COUNTY...TO NEAR EAGLE PASS...
IN WESTERN MAVERICK COUNTY. THESE STORMS WERE MOVING EAST AT
30 MPH.
LAT...LON 2827 10030 2831 10030 2838 10036 2849 10037
2853 10042 2858 10041 2867 10052 2874 10052
2881 10055 2883 10058 2896 10061 2902 10013
2819 10014 2819 10021
TIME...MOT...LOC 0224Z 233DEG 13KT 2880 10042
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 1, 10:04 PM CDT | Severe Thunderstorm Warning | EWX | Maverick | 41 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.