Alert archive / Texas / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 13, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 25, 2009, 6:11 PM CDT for 4 counties in Texas. It was in force for 40 min. 1 report 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
- Mar 25, 2009, 6:11 PM CDT (23:11 UTC)
- Expired
- Mar 25, 2009, 6:51 PM CDT
- In force
- 40 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
Counties Bastrop County, TX, Lee County, TX, Travis County, TX, Williamson County, TX
The radar
The Ft Hood radar (KGRK), 35 km from the middle of the area, began a volume at 23:11 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 |
|---|---|---|---|
| Mar 25, 6:30 PM CDT | HAIL 0.75 | Coupland, TX |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Mar 25, 2:06 PM CDT | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 11.2 hours before the alert went out and 262 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2348 m above ground
- 0-6 km bulk shear
- 50 kt
- 0-1 km storm-relative helicity
- 73 m²/s²
- 0-3 km storm-relative helicity
- 248 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
WUUS54 KEWX 252311
SVREWX
TXC021-287-453-491-260015-
/O.NEW.KEWX.SV.W.0013.090325T2311Z-090326T0015Z/
BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
611 PM CDT WED MAR 25 2009
THE NATIONAL WEATHER SERVICE IN AUSTIN SAN ANTONIO HAS ISSUED A
* SEVERE THUNDERSTORM WARNING FOR...
NORTH CENTRAL BASTROP COUNTY...
NORTHWESTERN LEE COUNTY...
EAST CENTRAL TRAVIS COUNTY...
SOUTHEASTERN WILLIAMSON COUNTY...
* UNTIL 715 PM CDT.
* AT 609 PM CDT...NWS METEOROLOGISTS HAVE DETECTED A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL...AND DAMAGING
WINDS IN EXCESS OF 60 MPH. THIS STORM WAS LOCATED NEAR HUTTO...OR
7 MILES EAST OF PFLUGERVILLE...AND MOVING EAST AT 35 MPH.
* SOME LOCATIONS IN THE WARNING INCLUDE TAYLOR...COUPLAND...ELGIN...
THRALL...FEDOR...LEXINGTON AND TANGLEWOOD.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN PRODUCE
TORNADOES.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT WEDNESDAY EVENING
FOR SOUTH CENTRAL TEXAS.
&&
LAT...LON 3027 9697 3039 9758 3058 9757 3061 9720
3048 9715 3057 9699 3057 9696 3055 9694
TIME...MOT...LOC 2312Z 275DEG 29KT 3048 9748
$$2 follow-up statements
000
WWUS54 KEWX 252340
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
640 PM CDT WED MAR 25 2009
TXC021-287-453-491-260015-
/O.CON.KEWX.SV.W.0013.000000T0000Z-090326T0015Z/
WILLIAMSON TX-TRAVIS TX-LEE TX-BASTROP TX-
640 PM CDT WED MAR 25 2009
...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM CDT
FOR NORTH CENTRAL BASTROP...NORTHWESTERN LEE...EXTREME EAST CENTRAL
TRAVIS AND SOUTHEASTERN WILLIAMSON COUNTIES...
AT 635 PM CDT...NWS METEOROLOGISTS CONTINUED TO DETECT A SEVERE
THUNDERSTORM CAPABLE OF PRODUCING PENNY SIZE HAIL. THIS STORM WAS
LOCATED NEAR BEYARSVILLE...COUPLAND AND THRALL...OR 10 MILES
SOUTHEAST OF TAYLOR...MOVING EAST AT 35 MPH. PENNY SIZE HAIL IS
BEING REPORTED IN COUPLAND.
SOME LOCATIONS IN THE WARNING AREA INCLUDE KNOBB SPRINGS...BLUE...
FEDOR...LEXINGTON...TANGLEWOOD AND LEO.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A TORNADO WATCH REMAINS IN EFFECT UNTIL 9 PM CDT FOR THE WARNED
AREA. SEVERE THUNDERSTORMS CAN PRODUCE TORNADOES.
&&
LAT...LON 3027 9697 3037 9745 3059 9737 3061 9720
3048 9715 3057 9699 3057 9696 3055 9694
TIME...MOT...LOC 2336Z 275DEG 29KT 3050 9730
$$000
WWUS54 KEWX 252351
SVSEWX
SEVERE WEATHER STATEMENT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX
651 PM CDT WED MAR 25 2009
TXC021-287-453-491-252358-
/O.CAN.KEWX.SV.W.0013.000000T0000Z-090326T0015Z/
WILLIAMSON TX-TRAVIS TX-LEE TX-BASTROP TX-
651 PM CDT WED MAR 25 2009
...THE SEVERE THUNDERSTORM WARNING FOR NORTH CENTRAL BASTROP...
NORTHWESTERN LEE...EXTREME EAST CENTRAL TRAVIS AND SOUTHEASTERN
WILLIAMSON COUNTIES IS CANCELLED...
THE SEVERE THUNDERSTORM HAS WEAKENED AND MOVED OFF TO THE EAST.
SMALL HAIL AND BRIEF HEAVY RAIN ARE STILL POSSIBLE OVER FAR EASTERN
WILLIAMSON COUNTY FOR THE NEXT FEW MINUTES.
A TORNADO WATCH REMAINS IN EFFECT UNTIL 900 PM CDT WEDNESDAY EVENING
FOR MUCH OF SOUTH CENTRAL TEXAS.
LAT...LON 3027 9697 3037 9745 3059 9737 3061 9720
3048 9715 3057 9699 3057 9696 3055 9694
TIME...MOT...LOC 2348Z 275DEG 29KT 3049 9719
$$The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 25, 3:45 PM CDT | Severe Thunderstorm Warning | EWX | Gillespie, Llano | 60 min |
| Mar 25, 4:00 PM CDT | Tornado Warning | EWX | Llano | 45 min |
| Mar 25, 4:37 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet, Llano | 38 min |
| Mar 25, 4:48 PM CDT | Tornado Warning | EWX | Blanco, Burnet, Llano | 42 min |
| Mar 25, 4:59 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Burnet, Travis, Williamson | 46 min |
| Mar 25, 5:18 PM CDT | Severe Thunderstorm Warning | EWX | Blanco, Gillespie, Kendall | 42 min |
| Mar 25, 5:35 PM CDT | Severe Thunderstorm Warning | EWX | Travis, Williamson | 55 min |
| Mar 25, 6:05 PM CDT | Areal Flood Advisory | EWX | Hays, Travis, Williamson | 100 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2009Every severe thunderstorm warning in 2009
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.