Alert archive / Texas / Flash Flood Warnings in 1990
Flash Flood Warning 59, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Oct 9, 1990, 4:16 AM CDT for Bexar County, Guadalupe County, Texas. It was in force for 74 min.
The area
The counties it named.
The facts
- Issued
- Oct 9, 1990, 4:16 AM CDT (09:16 UTC)
- Expired
- Oct 9, 1990, 5:30 AM CDT
- In force
- 74 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
Counties Bexar County, TX, Guadalupe 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, 9.3 hours before the alert went out and 217 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 090917
FFWSAT
TXC029-091015-
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
416 AM CDT TUE OCT 9 1990
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 515 AM CDT
AND A FLASH FLOOD WARNING EFFECTIVE UNTIL 515 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH TEXAS
...BEXAR AND GUADALUPE COUNTY...
A SEVERE THUNDERSTORM IS OVER THE NORTHERN PART OF BEXAR COUNTY MOVING
TO THE EAST AT 15 MPH. A WIND GUST TO 50 MPH BETWEEN WAS MEASURED AT THANTONIO INTERNATIONAL AIRPORT AT AROUND 4AM CDT.
RAINFALL DURING THE PAST HOUR RAINFALL AT THE NWS OFFICE HAS BEEN
1.30. STREET FLOODING IS OCCURRING WITH WATER OVER SOME LOW WATER
CROSSINGS IN THE CITY. MOTORIST SHOULD EXERCISE CAUTION FOR THE NEXT
HOUR OR TWO AND DO NOT DRIVE INTO FLOODED AREAS.
SEVERE THUNDERSTORMS PRODUCE DAMAGING WIND IN EX CESS 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 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, 11:08 PM CDT, 5 hours 8 minutes before
TXZ054-090610- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE DEL RIO TX 1110 PM CDT MON OCT 8 1990 AT 1105 PM CDT THUNDERSTORMS WITH RAINSHOWERS AND FREQUENT DANGEROUS LIGHTNING WERE OBSERVED AT THE DEL RIO INTERNATIONAL AIRPORT. RADAR ALSO INDICATED THUNDERSTORMS FROM 75 MILES SOUTHWEST TO 75 MILES NORTHEAST OF DEL RIO. THESE STORMS WERE MOVING TO THE EAST AT 20 MPH. SMALL HAIL AND STRONG GUSTY WINDS ARE ALSO POSSIBLE WITH THESE STORMS. BpOATERS AND FISHERMEN ON LAKE AMISTAD SHOULD SEEK SAFE HARBOR.
Special weather statement, Oct 8, 11:56 PM CDT, 4 hours 20 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, 1 hour 20 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 | Severe Thunderstorm Warning | EWX | Bexar, Guadalupe | 74 min |
| Oct 9, 5:31 AM CDT | Flash Flood Warning | EWX | Gonzales, Karnes, Wilson | 119 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.