Alert archive / Texas / Severe Thunderstorm Warnings in 2001
Severe Thunderstorm Warning 129, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Oct 12, 2001, 7:16 PM CDT for Edwards County, Texas. It was in force for 59 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
- Oct 12, 2001, 7:16 PM CDT (00:16 UTC)
- Expired
- Oct 12, 2001, 8:15 PM CDT
- In force
- 59 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties; the outline is the Mesonet’s reconstruction
County Edwards County, TX
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Oct 12, 6:30 PM CDT | Tornado Watch | SPC | 6 hr |
| Oct 12, 6:30 PM CDT | Tornado Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 0.3 hours before the alert went out and 96 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
- 3303 J/kg
- Mixed-layer CIN
- -10 J/kg
- Mixed-layer LCL
- 1597 m above ground
- 0-6 km bulk shear
- 59 kt
- 0-1 km storm-relative helicity
- 78 m²/s²
- 0-3 km storm-relative helicity
- 273 m²/s²
- Significant tornado parameter
- 2.5
- Supercell composite
- 22.5
The text
As transmitted, in the capitals the NWS used until 2016.
705 WUUS54 KEWX 130016 SVRSAT TXC137-130115- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 716 PM CDT FRI OCT 12 2001 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... EDWARDS * UNTIL 815 PM CDT * AT 716 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM OVER EDWARDS COUNTY...OR ABOUT 40 MILES EAST OF ROCKSPRINGS...MOVING NORTHEAST AT 20 MPH. A TORNADO WATCH IS IN EFFECT. SEVERE THUNDERSTORMS CAN AND DO PRODUCE TORNADOES WITH LITTLE OR NO ADVANCE WARNING. PREPARE TO MOVE TO A PLACE OF SAFETY IN A STURDY STRUCTURE SUCH AS A BASEMENT OR SMALL INTERIOR ROOM IF A TORNADO IS SPOTTED. LAT...LON 3002 10061 2990 10047 3026 9997 3045 10019
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 Oct 12, 2:50 PM CDT, 4 hours 26 minutes earlier.
Area forecast discussion, Oct 12, 2:50 PM CDT, 4 hours 26 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 250 PM CDT FRI OCT 12 2001 AREA LOOKS TO BE ON TRACK FOR SEVERE WEATHER TONIGHT...MAINLY OVER NORTHERN AND EASTERN SECTIONS. STORMS SHOULD BEGIN OUT WEST LATE THIS AFTERNOON OR EARLY THIS EVENING AND INTENSIFY AS THEY ENCOUNTER LOW LEVEL JET OVER HILL COUNTRY INTO SOUTH CENTRAL TEXAS. BY LATE EVENING...THUNDERSTORMS SHOULD ALIGN THEMSELVES IN SQUALL LINE FASHION ALONG EASTERN (NORTH SOUTH ORIENTED) ESCARPMENT...MOVING EAST RAPIDLY...WITH TORNADOES AND LARGE HAIL POSSIBLY ACCOMPANYING STORMS. INTENSITY OF LOW SHOULD ALLOW FOR GOOD WRAP AROUND CLOUDINESS THROUGH MUCH OF THE DAY ACROSS EASTERN ZONES...WITH WESTERN ZONES CLEARING RAPIDLY TOMMORROW MORNING. WIDESPREAD LIGHT TO MODERATE PRECIPITATION WITH SOME ELEVATED CONVECTION POSSIBLE AFTER FRONT PASSES LATE TONIGHT AND THIS SHOULD CONTINUE THROUGH ABOUT LATE MORNING. MUCH COLDER AIRMASS WILL BUILD ACROSS AREA SATURDAY NIGHT WITH LOWS DIPPING INTO THE UPPER 30S OVER THE NORTHERN HILLS...40S ELSEWHERE. SUNDAY LOOKS LIKE ABUNDANT SUNSHINE WITH TEMPERATURES IN THE UPPER 70S TO NEAR 80. A BEAUTIFUL WEEK IS IN STORE NEXT WEEK WITH ANOTHER SURGE OF COLDER AIR MOVING ACROSS TUESDAY NIGHT AND WEDNESDAY. SKIES SHOULD REMAIN MOSTLY CLEAR THROUGHOUT MUCH OF THE EXTENDED PERIOD WITH NORTHWEST TO WESTERLY FLOW ALOFT. LOW TEMPERATURES WILL BE IN THE 40S DURING THE FIRST HALF OF THE WORK WEEK...WARMING INTO THE 50S IN THE LATTER HALF. HIGHS GENERALLY IN THE 70S MONDAY THROUGH WEDNESDAY...WARMING INTO THE 80S WEDNESDAY THROUGH FRIDAY. .PRELIMINARY NUMBERS... AUS 62/69/44/77 8700 DRT 57/75/46/80 4100 SAT 62/73/42/78 8400 .EWX...NONE. 02/18
In the hours before
Special weather statement, Oct 12, 2:55 PM CDT, 4 hours 21 minutes before
TXZ171>173-183>194-202>209-217>225-228-130300- HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 255 PM CDT FRI OCT 12 2001 THERE IS A MODERATE RISK OF SEVERE THUNDERSTORMS THIS EVENING ACROSS THE EASTERN TWO-THIRDS OF SOUTH CENTRAL TEXAS. THIS AREA IS ALONG AND EAST OF A JUNCTION TO HONDO TO JOURDANTON LINE AND INCLUDES THE AUSTIN AND SAN ANTONIO METRO AREAS. WEST OF THIS LINE THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS COVERING THE REMAINDER OF SOUTH CENTRAL TEXAS. THIS OUTLOOK APPLIES TO THE FOLLOWING SPECIFIC COUNTIES... ATASCOSA...BANDERA...BASTROP...BEXAR...BLANCO...BURNET...CALDWELL... COMAL...DEWITT...DIMMIT...EDWARDS...FAYETTE...FRIO...GILLESPIE... GONZALES...GUADALUPE...HAYS...KARNES...KENDALL...KERR...KINNEY... LAVACA...LEE...LLANO...MAVERICK...MEDINA...REAL...TRAVIS...UVALDE... VAL VERDE...WILLIAMSON...WILSON AND ZAVALA. A VIGOROUS UPPER-LEVEL STORM SYSTEM AND AN ASSOCIATED COLD FRONT WILL DIVE SOUTHEAST INTO SOUTH TEXAS THIS EVENING AND TONIGHT. THE COMBINATION OF THESE TWO FEATURES WITH DEEP GULF MOISTURE WILL CREATE A THREAT FOR SEVERE THUNDERSTORMS. TORNADOES...LARGE HAIL...DAMAGING WINDS AND VERY HEAVY RAINFALL WILL BE POSSIBLE AHEAD OF THE FRONT WITH HAIL AND DAMAGING WINDS REMAINING POSSIBLE AFTER THE FRONT PASSES THROUGH. THE COLD FRONT IS EXPECTED TO BE NEAR... DEL RIO AND LLANO AREAS BY AROUND 9 PM... AUSTIN AND SAN ANTONIO BY AROUND MIDNIGHT... AND KENEDY AND HALLETSVILLE BY AROUND 4 AM SATURDAY MORNING. THE THREAT FOR TORNADOES WILL BE GREATEST IN THE LATE EVENING HOURS. AFTER MIDNIGHT...THE TORNADO THREAT SHOULD DECREASE AS THE AREA OF THUNDERSTORMS EVOLVES INTO A LARGE FRONTAL SQUALL LINE MOVING ACROSS THE EASTERN HALF OF SOUTH CENTRAL TEXAS. LARGE HAIL...DAMAGING WINDS...AND VERY HEAVY RAINS OF 2 TO 3 INCHES ARE POSSIBLE IN THESE AREAS LATE TONIGHT. SPOTTER NETWORK ACTIVATION IS LIKELY THIS EVENING 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.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 12, 7:21 PM CDT | Severe Thunderstorm Warning | EWX | Kinney | 64 min |
| Oct 12, 7:33 PM CDT | Tornado Warning | EWX | Kinney | 57 min |
| Oct 12, 8:08 PM CDT | Severe Thunderstorm Warning | EWX | Edwards, Real | 67 min |
| Oct 12, 8:20 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 55 min |
| Oct 12, 8:37 PM CDT | Severe Thunderstorm Warning | EWX | Kerr | 63 min |
| Oct 12, 9:06 PM CDT | Tornado Warning | EWX | Uvalde | 39 min |
| Oct 12, 9:27 PM CDT | Severe Thunderstorm Warning | EWX | Blanco | 48 min |
| Oct 12, 9:28 PM CDT | Severe Thunderstorm Warning | EWX | Gillespie, Kerr | 62 min |
| Oct 12, 9:40 PM CDT | Severe Thunderstorm Warning | EWX | Kinney | 50 min |
| Oct 12, 9:45 PM CDT | Tornado Warning | EWX | Medina, Uvalde | 60 min |
| Oct 12, 9:52 PM CDT | Severe Thunderstorm Warning | EWX | Bandera, Kendall | 38 min |
| Oct 12, 9:56 PM CDT | Tornado Warning | EWX | Blanco, Gillespie | 64 min |
| Oct 12, 10:14 PM CDT | Severe Thunderstorm Warning | EWX | Burnet | 46 min |
| Oct 12, 10:27 PM CDT | Severe Thunderstorm Warning | EWX | Hays, Travis | 63 min |
| Oct 12, 10:30 PM CDT | Severe Thunderstorm Warning | EWX | Kendall | 30 min |
| Oct 12, 10:44 PM CDT | Tornado Warning | EWX | Medina | 46 min |
| Oct 12, 10:45 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 60 min |
| Oct 12, 10:49 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 71 min |
| Oct 12, 10:55 PM CDT | Severe Thunderstorm Warning | EWX | Burnet, Llano | 65 min |
| Oct 12, 11:11 PM CDT | Severe Thunderstorm Warning | EWX | Comal | 49 min |
| Oct 12, 11:16 PM CDT | Severe Thunderstorm Warning | EWX | Williamson | 59 min |
| Oct 12, 11:25 PM CDT | Severe Thunderstorm Warning | EWX | Caldwell, Guadalupe | 65 min |
| Oct 12, 11:25 PM CDT | Severe Thunderstorm Warning | EWX | Bastrop | 65 min |
| Oct 12, 11:34 PM CDT | Severe Thunderstorm Warning | EWX | Medina | 56 min |
| Oct 12, 11:43 PM CDT | Severe Thunderstorm Warning | EWX | Kinney | 47 min |
| Oct 12, 11:51 PM CDT | Severe Thunderstorm Warning | EWX | Uvalde | 69 min |
| Oct 12, 11:58 PM CDT | Severe Thunderstorm Warning | EWX | Bexar, Comal | 62 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.