Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 77, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 20, 2001, 7:51 PM CDT for Burnet County, Texas. It was in force for 69 min. 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
- May 20, 2001, 7:51 PM CDT (00:51 UTC)
- Expired
- May 20, 2001, 9:00 PM CDT
- In force
- 69 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Burnet County, TX
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| May 20, 8:50 PM CDT | Thunderstorm Wind | Burnet, TX | Trees were split and knocked over into homes by severe thunderstorm winds. An aircraft was flipped onto its top at the Burnet airport by the winds. |
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, 0.9 hours before the alert went out and 242 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
- 1060 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 2345 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 55 m²/s²
- 0-3 km storm-relative helicity
- 134 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.6
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 210056 SVRSAT TXC053-210200- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 751 PM CDT SUN MAY 20 2001 THE NATIONAL WEATHER SERVICE IN AUSTIN/SAN ANTONIO HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... BURNET * UNTIL 9 PM CDT * AT 751 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 15 MILES WEST OF INKS LAKE STATE PARK...OR ABOUT 4 MILES SOUTHEAST OF LLANO...MOVING TOWARD THE EAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL BE... IN THE LAKE BUCHANAN-INKS LAKE-GRANITE SHOALS LAKE AREA AROUND 815 PM PM IN THE BURNET-MARBLE FALLS AREA AROUND 830 PM * THIS WARNING INCLUDES LOCATIONS IN AND AROUND... LAKE BUCHAHAN-INKS LAKE-GRANITE SHOALS LAKE-BURNET-MARBLE FALLS INTENSE LIGHTNING IS OCCURRING WITH THIS STORM. IF OUTDOORS...STAY AWAY FROM HIGH AREAS...METzAL OBJECTS...AND TALL ISOLATED TREES. MOVE INDOORS IF POSSIBLE BUT STAY AWAY FROM WINDOWS AND DOORS AND AVOID USING THE TELEPHONE UNLESS IT IS AN EMERGENCY. IF ON WATER...GET TO SHORE AND TO A PLACE OF SAFETY AT ONCE.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 20, 7:09 PM CDT | Severe Thunderstorm Warning | EWX | Llano | 66 min |
| May 20, 7:10 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell | 65 min |
| May 20, 7:28 PM CDT | Severe Thunderstorm Warning | EWX | Karnes, Wilson | 62 min |
| May 20, 8:29 PM CDT | Tornado Warning | EWX | Burnet | 31 min |
| May 20, 8:45 PM CDT | Tornado Warning | EWX | Travis, Williamson | 60 min |
| May 20, 9:47 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop, Lee, Travis, Williamson | 43 min |
| May 21, 6:39 AM CDT | Flash Flood Warning | EWX | Guadalupe | 2 hr |
Nearby
Severe Thunderstorm Warnings in Texas, 2001Every severe thunderstorm warning in 2001
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.