Alert archive / Texas / Severe Thunderstorm Warnings in 2002
Severe Thunderstorm Warning 51, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Apr 16, 2002, 7:58 PM CDT for Bexar County, Texas. It was in force for 22 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Apr 16, 2002, 7:58 PM CDT (00:58 UTC)
- Expired
- Apr 16, 2002, 8:20 PM CDT
- In force
- 22 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Counties, with a storm outline in the text
County Bexar County, TX
Did it verify
Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this severe thunderstorm warning while it was in force. That is not proof nothing happened: reports are thin where few people live.
Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Apr 16, 5:00 PM CDT | Severe Thunderstorm Watch | SPC | 6 hr |
The nearest sounding before it
Del Rio, TX (KDRT), launched 00:00Z, 1.0 hours before the alert went out and 223 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
- 626 J/kg
- Mixed-layer CIN
- -12 J/kg
- Mixed-layer LCL
- 2821 m above ground
- 0-6 km bulk shear
- 54 kt
- 0-1 km storm-relative helicity
- 17 m²/s²
- 0-3 km storm-relative helicity
- 142 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.3
The text
As transmitted, in the capitals the NWS used until 2016.
000 WUUS54 KEWX 170058 SVRSAT TXC029-170020- BULLETIN - EAS ACTIVATION REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 759 PM CDT TUE APR 16 2002 THE NATIONAL WEATHER SERVICE HAS ISSUED A * SEVERE THUNDERSTORM WARNING FOR THE FOLLOWING COUNTIES IN TEXAS... BEXAR * UNTIL 820 PM CDT * AT 759 PM...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED SEVERE THUNDERSTORMS OVER EASTERN BEXAR COUNTY...MOVING EAST AT 20 MPH. DAMAGING WIND AND HAIL IS POSSIBLE WITH THESE THUNDERSTORMS... ALONG WITH DEADLY LIGHTNING AND LOCALLY HEAVY RAIN. FLOODING ON LOW LYING STRETTS AND AT LOW WATER CROSSINGS IS ALSO POSSIBLE. LAT...LON 2949 9871 2936 9857 2944 9827 2965 9846
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 16, 2:33 PM CDT, 5 hours 25 minutes earlier.
Area forecast discussion, Apr 16, 2:33 PM CDT, 5 hours 25 minutes before
SOUTH CENTRAL TEXAS FORECAST DISCUSSION NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO TX 230 PM CDT MON APR 15 2002 UPPER DISTURBANCE CONTINUES NEWD...SWEEPING CLOUDS AND MOISTURE WITH IT. WILL NOT INCLUDE ANY POPS FOR TONIGHT AFTER ALL. FOR THE NEXT TWO DAYS...WEAK DISTURBANCES CONTINUE TO SWING ACROSS SC TX IN SWLY WINDS ALOFT...BUT WITH LAYER RH BELOW 40 PCT AND PW BELOW 1 INCH...RAIN CHANCES ARE NIL. LOW CLOUDS REFORM WED NITE...WITH THE STANDARD CLEARING TO PARTLY CLOUDY THU AFTN. ALL THIS TIME...FLOW IN BOUNDARY LAYER WILL HAVE BEEN REPLENISHING LOW LEVEL MOISTURE. BY FRI...LAYER RH WILL BE BACK OVER 50 PCT AND PW WILL BE OVER 1.5 INCHES. THATS ENOUGH FOR ANOTHER ROUND OF SHOWERS OR TSTMS FOR FRI AS THE NEXT DISTURBANCES PASS IN THE SWLY FLOW ALOFT. LOOKS LIKE THIS WILL CONTINUE INTO THE WEEKEND. NOT MUCH CHANGE IN TEMPS THRU THE PACKAGE. DRIER AIR WILL ALLOW SLIGHTLY COOLER MINS MOST SECTIONS ONIGHT...AND SLIGHTLY WARMER HIGHS ON WED. BY THU...WITH THE MOISTURE WILL RETURN...SC TX WILL RESUME MINS OF 60S TO NEAR 70 AND HIGHS IN THE 80S THRU THE REMAINDER OF THE PACKAGE. .EWX...NONE 09/18/DC PRELIMINARY NUMBERS... AUS 67/85/67/85/67 00001 DRT 64/91/67/90/68 00001 SAT 68/87/69/86/70 00001
In the hours before
Local storm report, Apr 16, 6:28 PM CDT, 1 hour 30 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
628 PM CDT TUE APR 16 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0530 PM RANDOLPH AFB TX .75 INCH HAIL
04/16/02 BEXAR REPORTED BY
METAR
0605 PM 5 E CAMPBELLTON AT TX ROTATING WALL CLOUD
JCT I37 AND FM791 REPORTED BY LAW
04/16/02 ATASCOSA ENFORCEMENT
0612 PM I37 CAMPBELLTON CUTOFF TX TWO ROTATING WALL CLOUDS
04/16/02 ATASCOSA REPORTED BY LAW
ENFORCEMENT
DCLocal storm report, Apr 16, 6:46 PM CDT, 1 hour 12 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
646 PM CDT TUE APR 16 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0628 PM CAMPBELLTON TX ROTATING WALL CLOUD
JCT I37 AND FM1099 REPORTED BY LAW
04/16/02 WILSON ENFORCEMENT
DCLocal storm report, Apr 16, 6:47 PM CDT, 1 hour 11 minutes before
PRELIMINARY LOCAL STORM REPORT...CORRECTED FOR COUNTY
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
647 PM CDT TUE APR 16 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0628 PM CAMPBELLTON TX ROTATING WALL CLOUD
JCT I37 AND FM1099 REPORTED BY LAW
04/16/02 ATASCOSA ENFORCEMENT
DCLocal storm report, Apr 16, 6:59 PM CDT, 59 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
659 PM CDT TUE APR 16 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0652 PM VANCE JACKSON AND LOOP 410
SAN ANTONIO TX .75 INCH HAIL
04/16/02 BEXAR REPORTED BY LAW
ENFORCEMENT
DCLocal storm report, Apr 16, 7:11 PM CDT, 47 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
711 PM CDT TUE APR 16 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0659 PM SAN ANTONIO AIRPORT TX .75 INCH HAIL
04/16/02 BEXAR REPORTED BY
METAR
DCLocal storm report, Apr 16, 7:40 PM CDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE AUSTIN/SAN ANTONIO, TX
740 PM CDT TUE APR 16 2002
TIME(CDT) .....CITY LOCATION.....STATE ...EVENT/REMARKS...
....COUNTY LOCATION....
0720 PM VANCE JACKSON AND LOOP 410
SAN ANTONIO TX ROTATING CLOUD
04/16/02 BEXAR REPORTED BY LAW
ENFORCEMENT
DCThe office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 16, 7:00 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 30 min |
| Apr 16, 7:04 PM CDT | Severe Thunderstorm Warning | EWX | Wilson | 56 min |
| Apr 16, 7:16 PM CDT | Severe Thunderstorm Warning | EWX | Atascosa, Karnes | 59 min |
| Apr 16, 7:31 PM CDT | Severe Thunderstorm Warning | EWX | Bexar | 29 min |
| Apr 16, 7:45 PM CDT | Severe Thunderstorm Warning | EWX | Comal, Guadalupe | 45 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2002Every severe thunderstorm warning in 2002
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.