Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 37, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 15, 2001, 9:42 PM CDT for Uvalde County, Texas. It was in force for 63 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
- Apr 15, 2001, 9:42 PM CDT (02:42 UTC)
- Expired
- Apr 15, 2001, 10:45 PM CDT
- In force
- 63 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Uvalde County, TX
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 2.7 hours before the alert went out and 117 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
- 1223 J/kg
- Mixed-layer CIN
- -49 J/kg
- Mixed-layer LCL
- 2335 m above ground
- 0-6 km bulk shear
- 40 kt
- 0-1 km storm-relative helicity
- -47 m²/s²
- 0-3 km storm-relative helicity
- -10 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- -2.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 160243 SVRSAT TXC463-160345- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 942 PM CDT SUN APR 15 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... UVALDE COUNTY * UNTIL 1045 PM CDT * AT 942 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM NEAR UTOPIA...DRIFTING SLOWLY SOUTHEASTWARD AROUND 5 MPH. PEOPLE IN THE UTOPIA AREA SHOULD PREPARE FOR LARGE HAIL...GUSTY WINDS...FREQUENT LIGHTNING...AND BRIEF BUT VERY HEAVY RAINS. LAT...LON 2962 9977 2911 9977 2911 9943 2961 9942
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 Apr 15, 8:30 PM CDT, 1 hour 12 minutes earlier.
Area forecast discussion, Apr 15, 8:30 PM CDT, 1 hour 12 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION...UPDATE NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 830 PM CDT SUN APR 15 2001 CURRENT SURFACE ANALYSIS HAS FRONTAL BOUNDARY AND WIND SHIFT LINE JUST NORTH OF THE ESCARPMENT RUNNING FROM NEAR AUS TO NEAR SAT TO NEAR DRT. THUNDERSTORM ACTIVITY CONTINUES TO REDEVELOP ALONG THE ESCARPMENT AND WILL CONTINUE THIS TREND FOR A FEW MORE HOURS BEFORE SLOWLY DECREASING IN INTENSITY AS THE COOLER AIR FILTERS SOUTH AND DAYTIME HEATING ABATES. LOOK FOR FRONTAL BOUNDARY TO SLOWLY SLIDE SOUTHWARD AND STALL OVER THE SOUTHERN COUNTIES LATER TONIGHT. LOWER DEW-POINTS WILL MAKE FOR A COOL NIGHT...BUT TEMPS ON MONDAY WILL STILL BE IN THE 80S. WILL UPDATE ZONE FORECAST TO ADJUST SKY CONDITION...TEMPS...WINDS AND POPS FOR TONIGHT. PREVIOUS DISCUSSION... PREFER THE SLOWER AVN SOLUTION ONCE AGAIN FOR THIS FCST. WEAK COLD FRONT IS ENTERING THE NORTHERN COUNTIES OF THE CWFA ATTM WITH CONVECTION FIRING OVER EAST TEXAS AND CENTRAL LOUISIANA. FRONT WILL LIKELY STALL OUT OVER THE SOUTHERN COUNTIES TONIGHT WITH NO PCPN EXPECTED FOR THE CWFA. HOWEVER SLIGHTLY LOWER DEWPOINTS WILL BE ASSOCIATED WITH THIS FRONT...ESPECIALLY ACROSS THE HILL COUNTRY AND EDWARDS PLATEAU. FRONTAL BOUNDARY WILL WASH OUT MONDAY AS SE SFC FLOW RETURNS BY THE AFTERNOON. STRONG COLD FRONT CURRENTLY OVER THE NORTHERN PLAINS WILL MOVE INTO THE HILL COUNTRY AND SOUTH CENTRAL TEXAS LATE MONDAY NIGHT/TUESDAY MORNING. SCATTERED TO NUMEROUS SHOWERS AND THUNDERSTORMS ARE EXPECTED ALONG AND BEHIND THE FRONT. SPC DAY2 OUTLOOK HAS THE NORTHERN HALF OF THE CWFA IN THE SLIGHT RISK AREA. WILL NOT MENTION SVR IN ZONE FCST...MAINLY NOCTURNAL PASSAGE OF FRONT ACROSS THE CWFA MAY PRECLUDE SVR WX DEVELOPMENT. BELOW NORMAL TEMPS WILL RESULT TUESDAY THRU THURSDAY...ENJOY. WARM AND HUMID WX WILL RETURN FOR THE WEEKEND. TEMPS AND POPS WILL BE CLOSE TO MAV NUMBERS. PRELIMS... AUS 63/81 58/65 46 1145 SAT 66/84 62/69 50 1135 DRT 65/87 65/71 52 0045 .EWX...NONE.
In the hours before
Special weather statement, Apr 15, 5:52 PM CDT, 3 hours 50 minutes before
TXZ184>187-189-202>207-221-160200- HAZARADOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 552 PM CDT SUN APR 15 2001 ...ISOLATED SEVERE THUNDERSTORMS POSSIBLE THIS EVENING ACROSS PORTIONS OF SOUTH CENTRAL TEXAS... ISOLATED SEVERE THUNDERSTORMS ARE POSSIBLE THIS EVENING ACROSS THE TEXAS HILL COUNTRY AND ADJACENT AREAS OF SOUTH CENTRAL TEXAS. A LINE OF THUNDERSTORMS ARE EXPECTED TO DEVELOP BETWEEN 6 PM AND 7 PM ACROSS THE CENTRAL AND EASTERN PORTIONS OF THE TEXAS HILL COUNTRY. THESE THUNDERSTORMS WILL DRIFT SLOWLY SOUTHWARD TO THE AREA ALONG HIGHWAY 90 BETWEEN UVALDE AND SAN ANTONIO BETWEEN 7 PM AND 9 PM. DUE TO THE STRONG DAYTIME HEATING THE AIR IS UNSTABLE ENOUGH SO THAT SOME OF THE THUNDERSTORMS COULD PRODUCE STRONG DAMAGING WINDS AND SOME LARGE HAIL. THIS OUTLOOK APPLIES TO FOLLOWING SPECIFIC COUNTIES... COMAL...MEDINA...KENDALL...WILSON...REAL...KERR...BEXAR...BANDERA... EDWARDS...KINNEY...GUADALUPE AND UVALDE. SPOTTER NETWORKS MAY NEED TO BE ACTIVATED AS THE THUNDERSTORMS MOVE ACROSS THE THREATENED AREA. && FOR INFORMATION ON WEATHER THREATS IN SURROUNDING AREAS...REFER TO OUTLOOKS FROM OFFICES IN MIDLAND...SAN ANGELO...FORT WORTH... HOUSTON/GALVESTON AND CORPUS CHRISTI.
Local storm report, Apr 15, 8:06 PM CDT, 1 hour 36 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
806 PM CDT SUN APR 15 2001
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0725 PM TARPLEY TX 1.75 INCH HAIL
04/15/01 BANDERA REPORTED BY LAW
ENFORCEMENT
0728 PM TARPLEY TX 1.75 INCH HAIL
04/15/01 BANDERA REPORTED BY CO-OP OBSERVER
DCThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 15, 8:45 PM CDT | Severe Thunderstorm Warning | EWX | Real | 60 min |
| Apr 16, 2:18 AM CDT | Severe Thunderstorm Warning | EWX | Edwards, Val Verde | 57 min |
| Apr 16, 3:28 AM CDT | Severe Thunderstorm Warning | EWX | Val Verde | 62 min |
| Apr 16, 3:55 PM CDT | Severe Thunderstorm Warning | EWX | Lee | 65 min |
| Apr 16, 4:48 PM CDT | Tornado Warning | EWX | Lee | 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.