Alert archive / Texas / Flash Flood Warnings in 1990
Flash Flood Warning 60, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 9, 1990, 5:31 AM CDT for Gonzales County, Karnes County, Wilson County, Texas. It was in force for 119 min.
The area
The counties it named.
The facts
- Issued
- Oct 9, 1990, 5:31 AM CDT (10:31 UTC)
- Expired
- Oct 9, 1990, 7:30 AM CDT
- In force
- 119 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Gonzales County, TX, Karnes County, TX, Wilson 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, 10.5 hours before the alert went out and 168 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
- 637 J/kg
- Mixed-layer CIN
- -94 J/kg
- Mixed-layer LCL
- 1311 m above ground
- 0-6 km bulk shear
- 26 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 107 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.3
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSAT 091031
FFWSAT
TXC177-255-493-091230-
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
531 AM CDT TUE OCT 9 1990
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 630 AM CDT
AND A FLASH FLOOD WARNING EFFECTIVE UNTIL 730 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTIES...
IN SOUTH TEXAS
...GONZALES...KARNES...WILSON
A LINE OF SEVERE THUNDERSTORMS IS MOVING INTO THE ABOVE MENTIONED
COUNTIES. THIS LINE OF THUNDERSTORMS IS CAPABLE OF PRODUCING WINDS
IN THE EXCESS OF 50 MPH. THE LINE IS MOVING EAST AT 15 TO 20 MPH.
THESE THUNDERSTORMS WILL ALSO PRODUCE VERY HEAVY RAINFALL WITH
FLASH FLOODING LIKELY DURING THE NEXT TWO HOURS.
MOTORIST ARE ADVISED NOT TO DRIVE ACROSS FLOODED LOW WATER CROSSINGS
ARE IN LOW AREAS NEXT TO FLOODED STREAMS.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EXCESS OF 55 MPH...HAIL
3/4 INCH OR MORE IN DIAMETER...FREQUENT LIGHTNING AND VERY HEAVY
RAIN.
WHEN A THUNDERSTORM THREATENS...SEEK SHELTER INSIDE A HOME OR
BUILDING AWAY FROM DOORS AND WINDOWS. REFRAIN FROM USING ELECTRICAL
APPLIANCES.What forecasters said that day
The local office's own words before this flash flood 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, Oct 8, 11:56 PM CDT, 5 hours 35 minutes before
TXZ034>039-054-090800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 1155 PM CDT MON OCT 8 1990 AT 1150 PM...WEATHER SERVICE RADAR INDICATED AN AREA OF SCATTERED SHOWERS AND A FEW THUNDERSTORMS ALONG A COLD FRONT THAT STRETCHED FROM JUST NORTH OF AUSTIN TO JUNCTION AND WESTWARD TO NEAR OZONA. BRIEF HEAVY RAIN AND GUSTY WINDS CAN BE EXPECTED WITH THE THUNDERSTORMS. IN ADDITION TO THE RAIN...NORTH WINDS OF 15 TO 20 MPH AND TEMPERATURES FALLING INTO THE 50S AND 60S HAD ACCOMPANIED THE FRONT. THE FRONT WAS MOVING TO THE SOUTH AT 15 MPH...INDICATING IT WOULD MOVE ACROSS THE REMAINDER OF THE HILL COUNTRY IN THE EARLY MORNING HOURS. THE FRONT WILL MOVE THROUGH THE AUSTIN AREA IN THE NEXT HOUR OR TWO AND INTO THE SAN ANTONIO METROPOLITAN AREA BETWEEN 3 AND 4 AM THIS MORNING. COLD...WINDY AND OCCASIONALLY RAIN CONDITIONS ARE EXPECTED TO PREVAIL THROUGH TUESDAY AND TUESDAY NIGHT...A DRAMATIC CHANGE FROM THE WARM AND SUNNY PAST FEW DAYS.
Special weather statement, Oct 9, 2:56 AM CDT, 2 hours 35 minutes before
TXZ034>039-054-090800- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO TX 245 AM CDT TUE OCT 9 1990 ...FLOOD AND FLASH FLOOD WATCH IS IN EFFECT FOR PORTIONS OF SOUTH AND SOUTHEAST TEXAS... THE WATCH IS FOR THAT PART OF SOUTH TEXAS NEAR AND NORTH OF A LINE FROM PALACIOS TO SAN ANTONIO...INCLUDING THE SAN ANTONIO METROPOLITAN AREA. AT 240 AM...WEATHER SERVICE RADAR INDICATED A LINE OF STRONG THUNDERSTORMS WITH VERY HEAVY RAIN WAS LOCATED FROM WEST OF KERRVILLE TO CRYSTAL CITY. BRIEF HEAVY RAIN AND GUSTY WINDS CAN BE EXPECTED WITH THE THUNDERSTORMS ALONG WITH POSSIBLE FLOODING OF STREET DURNING THE RUSH HOUR TRAFFIC THIS MORNING. NORTH WINDS OF 15 TO 20 MPH AND TEMPERATURES FALLING INTO THE 50S AND 60S. SHOULD ACCOMPANIED THE FRONT. THE FRONT WAS MOVING TO THE SOUTH AT 15 MPH... INDICATING IT WOULD MOVE THROUGH SAN ANTONIO DURNING THE EARLY MORNING HOURS.
The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 9, 4:16 AM CDT | Flash Flood Warning | EWX | Bexar, Guadalupe | 74 min |
| Oct 9, 4:16 AM CDT | Severe Thunderstorm Warning | EWX | Bexar, Guadalupe | 74 min |
| Oct 9, 5:31 AM CDT | Severe Thunderstorm Warning | EWX | Gonzales, Karnes, Wilson | 59 min |
| Oct 9, 8:48 AM CDT | Flash Flood Warning | EWX | Webb | 57 min |
| Oct 9, 9:42 AM CDT | Flash Flood Warning | EWX | Webb | 63 min |
Nearby
Flash Flood Warnings in Texas, 1990Every flash flood 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.