Alert archive / Texas / Severe Thunderstorm Warnings in 2012
Severe Thunderstorm Warning 14, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 3, 2012, 10:38 PM CST for Bexar County, Texas. It was in force for 37 min. 4 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
- Feb 3, 2012, 10:38 PM CST (04:38 UTC)
- Expired
- Feb 3, 2012, 11:15 PM CST
- In force
- 37 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
County Bexar County, TX
The radar
The Austin/San Antonio radar (KEWX), 35 km from the middle of the area, began a volume at 04:38 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 |
|---|---|---|---|
| Feb 3, 10:45 PM CST | HAIL 1 | Castle Hills, TX | QUARTER SIZE HAIL AND 1 INCH OF RAINFALL IN 30 MINUTES. |
| Feb 3, 10:55 PM CST | HAIL 1 | Castle Hills, TX | |
| Feb 3, 11:15 PM CST | HAIL 1 | Kirby, TX | |
| Feb 3, 11:15 PM CST | HAIL 1.25 | 3 Ssw Shavano Park, TX | 1 AND QUARTER SIZE HAIL. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 00:00Z, 4.6 hours before the alert went out and 221 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
- 2376 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 706 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 99 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 1.2
- Supercell composite
- 6.5
The text
As transmitted, in the capitals the NWS used until 2016.
073
WUUS54 KEWX 040438
SVREWX
TXC029-040515-
/O.NEW.KEWX.SV.W.0014.120204T0438Z-120204T0515Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1038 PM CST FRI FEB 3 2012
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
CENTRAL BEXAR COUNTY...
* UNTIL 1115 PM CST.
* AT 1030 PM CST...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR SAN
ANTONIO...AND MOVING EAST AT 20 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE OLMOS PARK...ALAMO HEIGHTS...
TERRELL HILLS...KIRBY...CHINA GROVE...WINDCREST...UNIVERSAL CITY...
ST. HEDWIG...LIVE OAK AND SELMA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
HAIL UP TO ONE AND ONE HALF INCHES IN DIAMETER HAS BEEN REPORTED IN
SAN ANTONIO WITH THIS STORM. IF YOU ARE IN THE PATH OF THE STORM...TAKE
IMMEDIATE ACTION TO PROTECT LIFE AND PROPERTY.
&&
LAT...LON 2952 9863 2962 9834 2959 9831 2956 9830
2954 9827 2956 9824 2955 9822 2954 9823
2949 9819 2949 9817 2943 9815 2935 9858
TIME...MOT...LOC 0436Z 253DEG 16KT 2947 9852
$$1 follow-up statement
959 WWUS54 KEWX 040502 SVSEWX SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1102 PM CST FRI FEB 3 2012 TXC029-040515- /O.CON.KEWX.SV.W.0014.000000T0000Z-120204T0515Z/ BEXAR TX- 1102 PM CST FRI FEB 3 2012 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 1115 PM CST FOR CENTRAL BEXAR COUNTY... AT 1054 PM CST...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE THUNDERSTORM CAPABLE OF PRODUCING QUARTER TO HALF DOLLAR SIZE HAIL...AND DAMAGING WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR OLMOS PARK...OR NEAR SAN ANTONIO...MOVING EAST AT 10 MPH. SOME LOCATIONS IN THE WARNING AREA INCLUDE ALAMO HEIGHTS...SAN ANTONIO INT AP...TERRELL HILLS...WINDCREST...LIVE OAK AND KIRBY. PRECAUTIONARY/PREPAREDNESS ACTIONS... THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER... PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS. && LAT...LON 2959 9834 2943 9832 2941 9857 2952 9861 TIME...MOT...LOC 0501Z 254DEG 10KT 2949 9849 $$
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 3, 9:18 PM CST | Areal Flood Advisory | EWX | Bexar | 2 hr |
| Feb 3, 9:45 PM CST | Areal Flood Advisory | EWX | Williamson | 105 min |
| Feb 3, 10:02 PM CST | Flash Flood Warning | EWX | Bexar | 118 min |
| Feb 3, 10:15 PM CST | Severe Thunderstorm Warning | EWX | Bexar | 30 min |
| Feb 3, 10:36 PM CST | Flash Flood Warning | EWX | Williamson | 114 min |
| Feb 3, 10:51 PM CST | Flash Flood Warning | EWX | Bexar | 3 hr |
| Feb 3, 11:15 PM CST | Severe Thunderstorm Warning | EWX | Bexar, Guadalupe | 60 min |
| Feb 4, 12:15 AM CST | Severe Thunderstorm Warning | EWX | Bexar, Guadalupe, Wilson | 45 min |
| Feb 4, 12:57 AM CST | Areal Flood Advisory | EWX | Burnet | 2 hr |
| Feb 4, 1:07 AM CST | Areal Flood Advisory | EWX | Hays, Travis | 113 min |
| Feb 4, 1:25 AM CST | Flash Flood Warning | EWX | Travis, Williamson | 3 hr |
| Feb 4, 1:54 AM CST | Areal Flood Advisory | EWX | Bexar, Guadalupe, Wilson | 2 hr |
| Feb 4, 2:32 AM CST | Areal Flood Advisory | EWX | Bandera, Medina | 118 min |
| Feb 4, 2:42 AM CST | Flash Flood Warning | EWX | Hays, Travis | 3 hr |
| Feb 4, 3:11 AM CST | Areal Flood Advisory | EWX | Bandera, Bexar, Medina | 109 min |
| Feb 4, 3:27 AM CST | Areal Flood Advisory | EWX | Bastrop, Caldwell, Hays, Lee, Travis | 2 hr |
| Feb 4, 4:06 AM CST | Areal Flood Advisory | EWX | Bexar, Comal, Guadalupe | 114 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.