Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 17, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Mar 4, 2001, 12:17 AM CST for Zavala County, Texas. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties.
The facts
- Issued
- Mar 4, 2001, 12:17 AM CST (06:17 UTC)
- Expired
- Mar 4, 2001, 1:15 AM CST
- In force
- 58 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Zavala County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 6.3 hours before the alert went out and 103 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
- 29 J/kg
- Mixed-layer CIN
- -37 J/kg
- Mixed-layer LCL
- 1833 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 0 m²/s²
- 0-3 km storm-relative helicity
- 169 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 040625 CCA SVRSAT TXC507-040715- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 1217 AM CST SUN MAR 4 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... ZAVALA COUNTY * UNTIL 115 AM CST * AT 1217 AM CST...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM 24 MILES NORTHWEST OF LA PRYOR...OR ABOUT 23 MILES WEST OF UVALDE...MOVING SOUTHEAST AT 20 MPH. * THE SEVERE THUNDERSTORM WILL MOVE ACROSS HWY 57 JUST EAST OF LA PRYOR AROUND 1230. LARGE HAIL AND STRONG GUSTY WINDS ARE POSSIBLE WITH THIS SEVERE THUNDERSTORM. m LAT...LON 2909 10009 2901 10010 2868 9960 2905 9951
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.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at Mar 3, 8:30 PM CST, 3 hours 47 minutes earlier.
Area forecast discussion, Mar 3, 8:30 PM CST, 3 hours 47 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION...UPDATE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 830 PM CST SAT MAR 3 2001 SURFACE LOW EXITING NORTHEAST AWAY FROM THE COUNTY WARNING AREA AND DRAGGING THE PRECIP WITH IT. NEXT UPPER LEVEL TROUGH ENTERING THE WESTERN COUNTIES AS THIS DISCUSSION IS BEING WRITTEN. PRECIP WITH THIS SYSTEM HAS EXTENDED INTO THE COUNTRY WARNING AREA SOUTHWARD ONLY THROUGH THE HILL COUNTRY. DON'T BELIEVE PRECIP WILL EXTEND TOO MUCH FURTHER SOUTHWARD...BUT WILL LEAVE 20 PERCENT POPS TONIGHT FOR JUST IN CASE. DON'T BELIEVE POPS WILL LAST ALL NIGHT EITHER. WILL UPDATE THE 4PM ZONE FORECAST TO QUALIFY THE POPS...ENDING THEN AFTER MIDNIGHT. WILL HAVE DECREASING CLOUDINESS AFTER THE TROUGH PASSES AND THE POPS END. SO WILL INCLUDE THAT ALSO IN THE UPDATE. A DECREASING CLOUDINESS SITUATION WILL PREVAIL WITH PATCHY LIGHT FOG IN THE MORNING HOURS...OTHERWISE SUNDAY WILL BE MOSTLY SUNNY. ..................................... PREVIOUS DISCUSSION... AT EARLY TO MID AFTERNOON RAIN HAD ENDED ACROSS WESTERN HALF OF CWA (EXCEPT FOR A FEW LIGHT SHOWERS FAR WEST) AND PARTIAL CLEARING FOLLOWING SEVERAL COUNTIES TO THE REAR. VORT MAX IN NORTHWEST UPPER FLOW TO TRIGGER SLIGHT TO CHANCE SHOWERS TONIGHT. AVN CONTINUES WITH SHOWERS INTO MONDAY EVENING BUT I FAVOR THE DRIER ETA. THE SERIES OF BIG UPPER TROUGHS JUST KEEPS COMING WITH THE NEXT TO BRING SHOWERS AND THUNDERSTORMS THURSDAY FOLLOWED BY ANOTHER ROUND NEXT WEEKEND. FOR TEMPS...MILD DAYS AND COOL NIGHTS PREVAIL WITH SOME TWEEKING OF MAV NUMBERS LOOKING THE BEST. AUS 043/069 041/067 3-00 DRT 043/075 042/072 2000 SAT 047/071 042/068 2-00 .EWX...NONE.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Mar 3, 11:33 PM CST | Severe Thunderstorm Warning | EWX | Kinney | 42 min |
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; the sounding from the Mesonet's radiosonde archive.