Alert archive / Texas / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 7, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Feb 9, 1990, 5:41 PM CST for Bexar County, Texas. It was in force for 41 min.
The area
The counties it named.
The facts
- Issued
- Feb 9, 1990, 5:41 PM CST (23:41 UTC)
- Expired
- Feb 9, 1990, 6:22 PM CST
- In force
- 41 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Bexar County, TX
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Corpus Christi, TX (KCRP), launched 12:00Z, 11.7 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
- 90 J/kg
- Mixed-layer CIN
- -598 J/kg
- Mixed-layer LCL
- 751 m above ground
- 0-6 km bulk shear
- 42 kt
- 0-1 km storm-relative helicity
- 56 m²/s²
- 0-3 km storm-relative helicity
- 96 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 092342
SVRSAT
TXC029-100030-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
541 PM CST FRI FEB 9 1990
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 PM CST
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH TEXAS
...BEXAR
GOLFBALL SIZE HAIL WAS REPORTED IN NORTHWEST SAN ANTONIO IN A LINE OF
THUNDERSTORMS MOVING SOUTHEASTWoARD ACROSS THE COUNTY.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...HAIL
3/4 INCH OR MORE IN DIAMETER...FREQUENT LIGHTNING AND VERY HEAVY
RAIN.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.
In the hours before
Special weather statement, Feb 9, 1:42 PM CST, 3 hours 59 minutes before
TXZ036-037-092045- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 140 PM CST FRI FEB 9 1990 ...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 6 PM CST TODAY FOR TRAVIS...WILLIAMSON...BURLESON AND MILAM COUNTIES OF CENTRAL TEXAS. WEATHER RADAR INDICATED THUNDERSTORMS FROM NEAR KILLEEN NORTHEAST TO NORTH OF WACO. OTHER SHOWERS AND LIGHT RAIN WAS LOCATED FROM SOUTH OF AUSTIN NORTHWARD ACROSS THE AUSTIN AREA AND ON NORTH TO BETWEEN WACO AND COLLEGE STATION. THUNDERSTORMS WERE MOVING NORTHEAST AT NEAR 45 MPH ...WHILE THE AREA WAS MOVING SLOWLY EASTWARD.
Special weather statement, Feb 9, 3:38 PM CST, 2 hours 3 minutes before
TXZ034-037-092300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 345 PM CST FRI FEB 9 1990 ...THUNDERSTORMS FORMING IN THE HILL COUNTRY TO THE WEST OF AUSTIN... AT 330 PM...WEATHER RADAR INDICATED THUNDERSTORMS FORMING OVER THE WESTERN BORDER OF TRAVIS AND NORTHERN BLANCO COUNTY. RAINFALL RATES FROM THESE STORMS WERE NEAR ONE INCH PER HOUR IN A FEW SPOTS BETWEEN ROUND MOUNTAIN AND MARBLE FALLS. MOVEMENT IS TO THE NORTH EAST AT ABOUT 30 MPH. THIS STORM SHOULD CROSS WILLIAMSON COUNTY WITHIN THE NEXT HOUR OR SO. ...A TORNADO WATCH IS IN EFFECT FOR A LARGE PORTION OF CENTRAL AND SOUTHEAST TEXAS. THIS INCLUDES TRAVIS AND ALL SURROUNDING COUNTIES...
Special weather statement, Feb 9, 4:11 PM CST, 1 hour 30 minutes before
TXZ034>039-092300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 410 PM CST FRI FEB 9 1990 ...A TORNADO WATCH IS IN EFFECT FOR PARTS OF SOUTH CENTRAL AND SOUTHEAST TEXAS UNTIL 930 PM CST THIS EVENING... THUNDERSTORMS WERE DEVELOPING RAPIDLY OVER PARTS OF THE HILL COUNRTY LATE THIS AFTERNOON. THESE STORMS...WHICH WERE MOVING TO THE EAST AT 25 MPH...WERE FORMING IN AN AREA OF WARM...MOIST...AND UNSTABLE AIR LOCATED ALONG A COLD FRONT. THIS FRONT WAS ON A LINE FROM EAST OF FORTH WORTH TO NORTHWEST OF SAN ANTONIO. REMEMBER...A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR THE FORMATION OF TORNADOES IN AND CLOSE TO THE WATCH AREA. LARGE HAIL...DAMAGING WINDS...AND FREQUENT LIGHTNING MAY ACCOMPANY THESE STORMS. STRONG GUSTY WINDS AND FALLING TEMPERATURES ARE EXPECTED OVER SOUTH TEXAS TONIGHT. ADDITIONAL STATEMENTS WILL BE ISSUED THROUGHOUT THE NIGHT FROM THE LOCAL NATIONAL WEATHER SERVICE OFFICES...KEEPING YOU INFORMED OF THIS SEVERE WEATHER SITUATION.
Special weather statement, Feb 9, 4:33 PM CST, 1 hour 8 minutes before
TXZ034>039-092300- SPECIAL WEATHER STATEMENT...CORRECTION... NATIONAL WEATHER SERVICE SAN ANTONIO TX 430 PM CST FRI FEB 9 1990 ...A TORNADO WATCH IS IN EFFECT FOR PARTS OF SOUTH CENTRAL AND SOUTHEAST TEXAS UNTIL 900 PM CST THIS EVENING... ...THE WATCH AREA IS ALONG AND 60 STATUTE MILES NORTH AND SOUTH OF A LINE FROM 25 MILES SOUTHWEST OF AUSTIN TO 60 MILES EAST NORTHEAST OF LUFKIN. BEXAR COUNTY IS NOT INCLUDED IN THE WATCH AREA. COUNTIES NEAREST TO BEXAR COUNTY AFFECTED BY THE TORNADO WATCH ARE: COMAL... GUADALUPE...WILSON...AND GONZALES. THUNDERSTORMS WERE DEVELOPING RAPIDLY OVER PARTS OF THE HILL COUNRTY LATE THIS AFTERNOON. THESE STORMS...WHICH WERE MOVING TO THE EAST AT 25 MPH...WERE FORMING IN AN AREA OF WARM...MOIST...AND UNSTABLE AIR LOCATED ALONG A COLD FRONT. THIS FRONT WAS ON A LINE FROM EAST OF FORTH WORTH TO NORTHWEST OF SAN ANTONIO. REMEMBER...A TORNADO WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR THE FORMATION OF TORNADOES IN AND CLOSE TO THE WATCH AREA. LARGE HAIL...DAMAGING WINDS...AND FREQUENT LIGHTNING MAY ACCOMPANY THESE STORMS. STRONG GUSTY WINDS AND FALLING TEMPERATURES ARE EXPECTED OVER SOUTH TEXAS TONIGHT. ADDITIONAL STATEMENTS WILL ;BE ISSUED THROUGHOUT THE NIGHT FROM THE LOCAL NATIONAL WEATHER SERVICE OFFICES...KEEPING YOU INFORMED OF THIS SEVERE WEATHER SITUATION.
Special weather statement, Feb 9, 4:39 PM CST, 1 hour 2 minutes before
TXZ034-037-100000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 445 PM CST FRI FEB 9 1990 ...THUNDERSTORMS MOVING EASTWARD TOWARD AUSTIN... AT 430 PM...WEATHER RADAR INDICATED THUNDERSTORMS DEVELOPING IN NORTHERN HAYS AND THE WESTERN PORTION OF TRAVIS COUNTY. RAINFALL RATES FROM THESE STORMS WERE NEAR ONE INCH PER HOUR IN A FEW SPOTS JUST NORTH OF DRIPPING SPRINGS AND NEAR LAKE TRAVIS. MOVEMENT OF THESE STORMS IS SLOW AND TO THE EAST. THESE THUNDERSTORMS COULD MOVE INTO THE AUSTIN AREA WITHIN THE NEXT HOUR. AT 403 PM THE WIND SHIFTED AT THE WEATHER OFFICE TO THE NORTHWEST WITH GUSTS TO 31 MPH. ...A TORNADO WATCH IS IN EFFECT FOR A LARGE PORTION OF CENTRAL AND SOUGTHEAST TEXAS. THIS INCLUDES TRAVIS AND ALL SURROUNDING COUNTIES...
Special weather statement, Feb 9, 5:02 PM CST, 39 minutes before
TXZ034>039-100000- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 500 PM CST FRI FEB 9 1990 ...A TORNADO WATCH IS IN EFFECT FOR PARTS OF SOUTH CENTRAL AND SOUTHEAST TEXAS UNTIL 900 PM CST THIS EVENING...INCLUDING COMAL...GUADALUPE... GONZALES...AND WILSON COUNTIES... AT 500 PM CST...NATIONAL WEATHER SERVICE RADAR INDICATED SCATTERED THUNDERSTORMS...WITH VERY HEAVY RAIN...FROM NEAR AUSTIN TO NEAR CANYON LAKE. OTHER THUNDERSTORMS WERE DEVELOPING IN THE TEXAS HILL COUNTRY. MOVEMENT WAS TO THE EAST AT 20 MPH. PERIODS OF HEAVY RAINS...STRONG AND DAMAGING WINDS...DANGEROUS LIGHTNING AND HAIL ARE POSSIBLE WITH THESE THUNDERSTORMS. REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR TORNADOES TO DEVELOP IN AND CLOSE TO THE WATCH AREA. A COLD FRONT HAD MOVED THROUGH THE AUSTIN AREA LATE THIS AFTERNOON AND WAS EXPECTED TO REACH THE SAN ANTONIO METROPOLITAN AREA WITHIN THE NEXT HOUR. VERY GUSTY WINDS OF OV2ER 30 MPH CAN BE EXPECTED FROM THE NORTHWEST BEHIND THE FRONT. THUNDERSTORMS ARE EXPECTED TO CONTINUE DEVELOPING THIS EVENING OVER SOUTH CENTRAL AND SOUTHEAST TEXAS...AND PERSONS SHOULD REMAINED TUNED TO LATER WEATHER DEVELOPMENTS.
Nearby
Severe Thunderstorm Warnings in Texas, 1990Every severe thunderstorm warning in 1990
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.