Alert archive / Texas / Severe Thunderstorm Warnings in 1991
Severe Thunderstorm Warning 37, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 13, 1991, 6:58 PM CDT for Burleson County, Texas. It was in force for 32 min. 2 reports 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
- Apr 13, 1991, 6:58 PM CDT (23:58 UTC)
- Expired
- Apr 13, 1991, 7:30 PM CDT
- In force
- 32 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Burleson County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Apr 13, 7:20 PM CDT | Hail 1.5 | Burleson, TX | |
| Apr 13, 7:20 PM CDT | Hail 2.5 | Burleson, 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. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.
The nearest sounding before it
Stephenville/Cla, TX (KSEP), launched 12:00Z, 12.0 hours before the alert went out and 238 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
- 805 J/kg
- Mixed-layer CIN
- -308 J/kg
- Mixed-layer LCL
- 1877 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- 175 m²/s²
- 0-3 km storm-relative helicity
- 229 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -0.2
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, Apr 13, 2:14 PM CDT, 4 hours 44 minutes before
TXZ034>037-132030- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 210 PM CDT SAT APR 13 1991 ...THUNDERSTORM DEVELOPING WEST OF LAKE TRAVIS... AT 2 PM CDT AUSTIN RADAR INDICATED A THUNDEcRSTORM DEVELOPING RAPIDLY JUST TO THE WEST OF LAKE TRAVIS. THIS THUNDERSTORM MAY BECOME SEVERE WITHIN THE HOUR. IF YOU ON LAKE TRAVIS PLEASE MOVE TO SHORE RIGHT AWAY
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 13, 8:35 AM CDT | Severe Thunderstorm Warning | EWX | Llano | 40 min |
| Apr 13, 11:22 AM CDT | Tornado Warning | EWX | Williamson | 53 min |
| Apr 13, 12:48 PM CDT | Flash Flood Warning | EWX | Williamson | 3 hr |
| Apr 13, 3:11 PM CDT | Severe Thunderstorm Warning | EWX | Travis, Williamson | 64 min |
| Apr 13, 3:38 PM CDT | Tornado Warning | EWX | Travis, Williamson | 52 min |
| Apr 13, 4:30 PM CDT | Severe Thunderstorm Warning | EWX | Williamson | 35 min |
| Apr 13, 4:55 PM CDT | Severe Thunderstorm Warning | EWX | Burleson | 50 min |
| Apr 13, 5:59 PM CDT | Severe Thunderstorm Warning | EWX | Burleson, Lee | 61 min |
| Apr 13, 6:27 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop | 48 min |
Nearby
Severe Thunderstorm Warnings in Texas, 1991Every severe thunderstorm warning in 1991
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.