Alert archive / Texas / Severe Thunderstorm Warnings in 1990
Severe Thunderstorm Warning 69, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at Jul 15, 1990, 10:30 PM CDT for Webb County, Texas. It was in force for 60 min.
The area
The counties it named.
The facts
- Issued
- Jul 15, 1990, 10:30 PM CDT (03:30 UTC)
- Expired
- Jul 15, 1990, 11:30 PM CDT
- In force
- 60 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Webb 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 00:00Z, 3.5 hours before the alert went out and 196 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
- 1774 J/kg
- Mixed-layer CIN
- -3 J/kg
- Mixed-layer LCL
- 784 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 137 m²/s²
- 0-3 km storm-relative helicity
- 266 m²/s²
- Significant tornado parameter
- 2.5
- Supercell composite
- 15.4
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 160330
SVRSAT
TXC479-160430-
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
1030 PM CDT SUN JUL 15 1990
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 1130 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH TEXAS
...WEBB
A SEVERE THUNDERSTORM WAS LOCATED OVER CENTRAL WEBB COUNTY MOVING
SLOWLY TO THE SOUTH AT LESS THAN 10 MILES AN HOUR. THIS STORM HAS
PRODUCED LARGE HAIL AS IT MOVED OUT OF LA SALLE 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.
PLEASE LISTEN TO YOUR LOCAL RADIO...TV OR NOAA WEATHER RADIO STATION
FOR LATER STATEMENTS OR WARNINGS REGARDING THIS SEVERE WEATHER EVENT.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, Jul 15, 4:56 PM CDT, 5 hours 34 minutes before
TXZ034>036-038>039-054-152300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO, TX 455 PM CDT SUN JUL 15 1990 ...SHOWERS AND THUNDERSTORMS CONTINUE ACROSS THE HILL COUNTRY...EDWARDS PLATEAU AND SOUTH CENTRAL TEXAS... A BROAD AREA OF SHOWERS AND A FEW THUNDERSTORMS STRETCHED ACROSS THE HILL COUNTRY...EDWARDS PLATEAU AND ADJACENT SECTIONS OF SOUTH CENTRAL TEXAS THIS AFTERNOON. THE BENEFICIAL RAINFALL...MUCH OF WHICH HAS FALLEN OVER THE EDWARDS AQUIFER RECHARGE ZONE...HAS GENERALLY BEEN LESS THAN AN INCH. SAN MARCOS...JUST SOUTH OF AUSTIN...REPORTED NEAR TWO INCHES. WITH THE RAINS EXPECTED TO CONTINUE THROUGHOUT TONIGHT...OTHER LOCATIONS COULD SEE TOTALS WELL IN EXCESS OF AN INCH BY MORNING. AN ISOLATED REPORT OF SEVERE WEATHER JUST SOUTH OF KERRVILLE WAS RECEIVED EARLIER THIS AFTERNOON. A TORNADO APPARENTLY TOUCHED DOWN CAUSING SUBSTANTIAL DAMAGE TO A MOBILE HOME PARK AND NEARBY RESIDENTIAL AREA. AS OF YET...NO REPORTS OF INJURIES HAVE BEEN RECEIVED. THE RAINS ARE BEING TRIGGERED BY AN UNSEASONABLY STRONG UPPER AIR DISTURBANCE THAT IS INTERACTING WITH A STATIONARY FRONT LYING EAST-TO- WEST ACROSS THE AREA. THE FRONT IS EXPECTED TO WEAKEN...BUT SHOULD REMAIN THE FOCUS FOR SHOWER AND THUNDERSTORMS DEVELOPMENT THROUGHOUT TONIGHT AND INTO MONDAY.
Special weather statement, Jul 15, 6:32 PM CDT, 3 hours 58 minutes before
TXZ039-160100- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO, TX 630 PM CDT SUN JUL 15 1990 NATIONAL WEATHER SERVICE RADAR INDICATED A STRONG THUNDERSTORM OVER SOUTHWEST BEXAR COUNTY MOVING TO THE NORTHEAST AT 15 MILES AN HOUR. IF THIS PRESENT MOVEMENT CONTINUES...THE STORM WILL MOVE ACROSS THE SAN ANTONIO METROPOLITAN AREA WITHIN THE NEXT HALF HOUR. ALONG WITH HEAVY RAIN...RESIDENTS CAN EXPECT FREQUENT LIGHTNING...STRONG GUSTY WIND AND SOME SMALL HAIL AS THE STORM MOVES ACROSS THE CITY. WITH THE RAINS THROUGHOUT TODAY...ADDITIONAL HEAVY RAINFALL FROM THIS STORM MAY BE QUICK TO PRODUCE MINOR FLOODING OF STREETS AND LOW-WATER CROSSINGS. STAY TUNED TO LOCAL RADIO...TELE,VISION OR NOAA WEATHER RADIO FOR ADDITIONAL UPDATES.
Special weather statement, Jul 15, 7:02 PM CDT, 3 hours 28 minutes before
TXZ039-160100- URBAN FLOOD STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO, TX 700 PM CDT SUN JUL 15 1990 FLOODING OF STREETS AND LOW-WATER CROSSINGS WAS LIKELY OCCURRING THIS EVENING IN AND AROUND THE SAN ANTONIO METROPOLITAN AREA AS HEAVY RAINS CONTINUED TO FALL. STRONG THUNDERSTORMS WERE INDICATED BY RADAR MOVING NORTHEAST ACROSS THE CITY AND PRODUCING RAINFALL ON THE ORDER OF THREE TO FOUR INCHES PER HOUR. MOTORISTS SHOULD EXERCISE CAUTION WHEN TRAVELING ON CITY STREETS AND ROADWAYS. DO NOT ATTEMPT TO DRIVE ACROSS LOW-WATER CROSSINGS OR ROADS INUNDATED BY WATER OF UNKNOWN DEPTH. RESIDENTS LIVING NEAR SMALL STREAMS SHOULD CONTINUE TO MONITOR WEATHER CONDITIONS CLOSELY AND BE PREPAREDn TO MOVE TO A PLACE OF SAFETY SHOULD RAPID RISES IN STREAM LEVELS OCCUR. STAY TUNED TO NOAA WEATHER RADIO FOR ADDITIONAL UPDATES.
Special weather statement, Jul 15, 8:23 PM CDT, 2 hours 7 minutes before
TXZ030-034>037-160200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE AUSTIN TX 817 PM CDT SUN JUL 15 1990 ...HEAVY RAIN ACCUMULATIONS SOUTH OF AUSTIN... EARLY TONIGHT...WIDESPREAD MOSTLY LIGHT TO MODERATE RAINS COVERED A LARGE PORTION OF CENTRAL AND SOUTH CENTRAL TEXAS. MOST RAINFALL A- MOUNTS HAVE BEEN IN THE ONE TO TWO INCH CATEGORY...ALTHOUGH MANY SPOTS TO THE SOUTH AND SOUTHWEST OF AUSTIN HAVE RECORDED AROUND 3 INCHES. SO FAR THE HIGHEST AMOUNT CAME IN FROM LOCKHART WHERE 4.26 INCHES HAD FALLEN UP TO 8 PM. MOST OF THE HEAVIER SHOWERS REMAIN IN AND AROUND SAN ANTONIO...WITH LITTLE OR NO MOVEMENT. JVD
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 8:15 PM CDT | Severe Thunderstorm Warning | EWX | La Salle | 45 min |
| Jul 15, 9:20 PM CDT | Flash Flood Warning | EWX | Atascosa, Bexar | 115 min |
| Jul 15, 9:35 PM CDT | Severe Thunderstorm Warning | EWX | Webb | 55 min |
| Jul 15, 11:59 PM CDT | Severe Thunderstorm Warning | EWX | Dimmit | 61 min |
| Jul 16, 2:03 AM CDT | Flash Flood Warning | EWX | Atascosa, Bexar, Medina, Uvalde | 3 hr |
| Jul 16, 4:50 AM CDT | Flash Flood Warning | EWX | Atascosa, Bexar, Medina | 4 hr |
| Jul 16, 8:42 AM CDT | Flash Flood Warning | EWX | Dimmit | 3 hr |
| Jul 16, 9:09 AM CDT | Flash Flood Warning | EWX | Atascosa, Bexar | 3 hr |
| Jul 16, 11:30 AM CDT | Flash Flood Warning | EWX | Zavala | 3 hr |
| Jul 16, 11:44 AM CDT | Flash Flood Warning | EWX | Dimmit | 3 hr |
| Jul 16, 12:12 PM CDT | Flash Flood Warning | EWX | Atascosa | 4 hr |
| Jul 16, 4:17 PM CDT | Flash Flood Warning | EWX | Atascosa, Bexar, Wilson | 3 hr |
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.