Alert archive / Texas / Severe Thunderstorm Warnings in 1996
Severe Thunderstorm Warning 129, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Sep 19, 1996, 11:58 PM CDT for Williamson County, Texas. It was in force for 2 hr. 1 report came from inside the area while it was in force.
The area
The counties it named, with what was reported inside it.
The facts
- Issued
- Sep 19, 1996, 11:58 PM CDT (04:58 UTC)
- Expired
- Sep 20, 1996, 2:00 AM CDT
- In force
- 2 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Williamson County, TX
The radar
The Ft Hood radar (KGRK), 22 km from the middle of the area, began a volume at 04:59 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 |
|---|---|---|---|
| Sep 20, 12:15 AM CDT | Thunderstorm Wind | Georgetown, TX |
NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 00:00Z, 5.0 hours before the alert went out and 245 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
- 670 J/kg
- Mixed-layer CIN
- -29 J/kg
- Mixed-layer LCL
- 1365 m above ground
- 0-6 km bulk shear
- 18 kt
- 0-1 km storm-relative helicity
- 60 m²/s²
- 0-3 km storm-relative helicity
- 165 m²/s²
- Significant tornado parameter
- 0.1
- Supercell composite
- 2.0
The text
The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Sep 19, 9:15 PM CDT, 2 hours 43 minutes before
TXZ171>173-190>194-208-200400- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 905 PM CDT THU SEP 19 1996 ...SEVERE THUNDERSTORM WATCH IN EFFECT FOR CENTRAL TEXAS... INCLUDING THE GEORGETOWN AND AUSTIN METROPOLITAN AREAS... THE STORM PREDICTION CENTER OF THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WATCH FOR CENTRAL TEXAS VALID UNTIL 1 AM CDT FRIDAY MORNING. THE WATCH IN WITHIN AN AREA ALONG AND 60 MILES EITHER SIDE OF A LINE FROM 30 MILES WEST OF AUSTIN TO 55 MILES EAST-NORTHEAST OF WACO. THE METROPOLITAN AREAS OF GEORGETOWN AND AUSTIN ARE INCLUDED IN THE WATCH. A SEVERE THUNDERSTORM WATCH MEANS SEVERE THUNDERSTORMS MAY OCCUR IN THE AFFECTED AREA. PERSONS IN LLANO...BURNET...BLANCO...HAYS... WILLIAMSON...TRAVIS...LEE...BASTROP AND CALDWELL COUNTIES SHOULD MONITOR THE LATEST WEATHER BULLETINS AND FORECASTS AND BE READY TO MOVE TO A PLACE OF SAFETY IF A SEVERE WEATHER WARNING IS ISSUED. IN ADDITION TO LARGE HAIL...DAMAGING WINDS AND FREQUENT DEADLY LIGHTNING...SEVERE THUNDERSTORMS ALSO CAN PRODUCE TORNADOES... LOCALLY HEAVY RAINFALL AND FLASH FLOODING. ADDITIONAL STATEMENTS OR BULLETINS CONCERNING THIS WEATHER SITUATION WILL BE ISSUED AS CONDITIONS WARRANT...SO PLEASE STAY TUNED TO LOCAL RADIO...TV OR NOAA WEATHER RADIO STATIONS.
Local storm report, Sep 19, 11:50 PM CDT, 8 minutes before
PRELIMINARY LOCAL STORM REPORT...
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TEXAS
1145 PM CDT THU SEP 18 1996
TIME(CDT) .....CITY LOCATION..... STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
1115 PM KINGSLAND TX TREE LIMBS AND MAIL BOXES
09/19/96 LLANO DOWN DUE TO HIGH WINDS.
LLANO SHERIFF
1122 PM KINGSLAND TX .75 HAIL
09/19/96 LLANO AT KNOB HILL IN KINGSLAND
LLANO SHERIFFThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Sep 19, 9:55 PM CDT | Flash Flood Warning | EWX | Williamson | 2 hr |
| Sep 19, 9:55 PM CDT | Severe Thunderstorm Warning | EWX | Williamson | 2 hr |
| Sep 19, 10:45 PM CDT | Flash Flood Warning | EWX | Burnet | 2 hr |
| Sep 19, 10:45 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 2 hr |
| Sep 19, 10:56 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 64 min |
| Sep 19, 11:25 PM CDT | Severe Thunderstorm Warning | EWX | Travis | 65 min |
| Sep 19, 11:58 PM CDT | Flash Flood Warning | EWX | Williamson | 2 hr |
| Sep 20, 12:24 AM CDT | Flash Flood Warning | EWX | Travis | 2 hr |
| Sep 20, 12:24 AM CDT | Severe Thunderstorm Warning | EWX | Travis | 2 hr |
| Sep 20, 1:02 AM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 58 min |
| Sep 20, 1:09 AM CDT | Flash Flood Warning | EWX | Bastrop | 2 hr |
| Sep 20, 1:09 AM CDT | Severe Thunderstorm Warning | EWX | Bastrop | 2 hr |
| Sep 20, 1:26 AM CDT | Flash Flood Warning | EWX | Burnet, Llano | 2 hr |
| Sep 20, 1:26 AM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 2 hr |
| Sep 20, 1:43 AM CDT | Severe Thunderstorm Warning | EWX | Caldwell | 62 min |
| Sep 20, 2:26 AM CDT | Flash Flood Warning | EWX | Fayette, Gonzales | 2 hr |
| Sep 20, 2:26 AM CDT | Severe Thunderstorm Warning | EWX | Fayette, Gonzales | 2 hr |
| Sep 20, 6:30 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 60 min |
| Sep 20, 6:53 PM CDT | Tornado Warning | EWX | Burnet | 67 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1996Every severe thunderstorm warning in 1996
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.