Alert archive / Texas / Severe Thunderstorm Warnings in 2011
Severe Thunderstorm Warning 89, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 25, 2011, 12:29 AM CDT for Burnet County, Llano County, Texas. It was in force for 46 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
- May 25, 2011, 12:29 AM CDT (05:29 UTC)
- Expired
- May 25, 2011, 1:15 AM CDT
- In force
- 46 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
Counties Burnet County, TX, Llano County, TX
The radar
The Ft Hood radar (KGRK), 86 km from the middle of the area, began a volume at 05:29 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
Fort Worth, TX (KFWD), launched 00:00Z, 5.5 hours before the alert went out and 226 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
- 2867 J/kg
- Mixed-layer CIN
- -16 J/kg
- Mixed-layer LCL
- 1457 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- 357 m²/s²
- 0-3 km storm-relative helicity
- 602 m²/s²
- Significant tornado parameter
- 6.2
- Supercell composite
- 44.3
The text
As transmitted, in the capitals the NWS used until 2016.
534
WUUS54 KEWX 250529
SVREWX
TXC053-299-250615-
/O.NEW.KEWX.SV.W.0089.110525T0529Z-110525T0615Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1229 AM CDT WED MAY 25 2011
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTHERN BURNET COUNTY...
EXTREME NORTHEASTERN LLANO COUNTY...
* UNTIL 115 AM CDT.
* AT 1220 AM CDT...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 11 MILES WEST OF
LAKE VICTOR...OR 11 MILES NORTH OF BUCHANAN DAM...AND MOVING EAST
AT 30 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE SUNNYLANE...SHADY GROVE...
WATSON AND JOPPA.
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.
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
WEDNESDAY MORNING FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 3105 9793 3104 9792 3078 9797 3089 9845
3093 9845 3094 9842 3095 9845 3103 9845
3104 9844
TIME...MOT...LOC 0529Z 284DEG 26KT 3093 9827
$$2 follow-up statements
287
WWUS54 KEWX 250542
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1242 AM CDT WED MAY 25 2011
TXC299-250552-
/O.CAN.KEWX.SV.W.0089.000000T0000Z-110525T0615Z/
LLANO TX-
1242 AM CDT WED MAY 25 2011
...THE SEVERE THUNDERSTORM WARNING FOR EXTREME NORTHEASTERN LLANO
COUNTY IS CANCELLED...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
WEDNESDAY MORNING FOR SOUTH CENTRAL TEXAS.
LAT...LON 3104 9830 3105 9793 3104 9792 3078 9797
3086 9831
TIME...MOT...LOC 0542Z 284DEG 26KT 3091 9816
$$
TXC053-250615-
/O.CON.KEWX.SV.W.0089.000000T0000Z-110525T0615Z/
BURNET TX-
1242 AM CDT WED MAY 25 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTHERN BURNET COUNTY...
AT 1233 AM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR LAKE
VICTOR...OR 10 MILES SOUTH OF LAMPASAS...MOVING EAST AT 30 MPH.
SOME LOCATIONS IN THE WARNING AREA INCLUDE SUNNYLANE...SHADY GROVE...
WATSON AND JOPPA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
WEDNESDAY MORNING FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 3104 9830 3105 9793 3104 9792 3078 9797
3086 9831
TIME...MOT...LOC 0542Z 284DEG 26KT 3091 9816
$$913
WWUS54 KEWX 250552
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
1252 AM CDT WED MAY 25 2011
TXC053-250615-
/O.CON.KEWX.SV.W.0089.000000T0000Z-110525T0615Z/
BURNET TX-
1252 AM CDT WED MAY 25 2011
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 AM CDT
FOR NORTHEASTERN BURNET COUNTY...
AT 1246 AM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING QUARTER SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR WATSON...OR
11 MILES NORTH OF BERTRAM...MOVING EAST AT 30 MPH.
SOME LOCATIONS IN THE WARNING AREA INCLUDE JOPPA.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT UNTIL 400 AM CDT
WEDNESDAY MORNING FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 3101 9811 3101 9793 3081 9797 3082 9810
3082 9812
TIME...MOT...LOC 0553Z 274DEG 24KT 3090 9805
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 12:55 AM CDT | Severe Thunderstorm Warning | EWX | Burnet, Williamson | 25 min |
| May 25, 1:44 AM CDT | Severe Thunderstorm Warning | EWX | Burnet, Williamson | 46 min |
| May 25, 2:31 AM CDT | Severe Thunderstorm Warning | EWX | Burnet, Williamson | 44 min |
| May 25, 5:02 AM CDT | Severe Thunderstorm Warning | EWX | Travis | 28 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2011Every severe thunderstorm warning in 2011
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.