Alert archive / Texas / Flash Flood Warnings in 1990
Flash Flood Warning 42, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this flash flood warning at Jul 23, 1990, 7:04 PM CDT for Kendall County, Texas. It was in force for 4 hr.
The area
The counties it named.
The facts
- Issued
- Jul 23, 1990, 7:04 PM CDT (00:04 UTC)
- Expired
- Jul 23, 1990, 11:00 PM CDT
- In force
- 4 hr
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Whole counties
County Kendall 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
Del Rio, TX (KDRT), launched 00:00Z, 0.1 hours before the alert went out and 215 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
- 139 J/kg
- Mixed-layer CIN
- -83 J/kg
- Mixed-layer LCL
- 1130 m above ground
- 0-6 km bulk shear
- 16 kt
- 0-1 km storm-relative helicity
- 13 m²/s²
- 0-3 km storm-relative helicity
- 3 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 240006
FFWSAT
TXC259-240400-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SAN ANTONIO TX
704 PM CDT MON JUL 23 1990
THE NATIONAL WEATHER SERVICE IN SAN ANTONIO HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1100 PM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
IN SOUTH TEXAS
...KENDALL
KENDALL COUNTY SHERIFFS DEPARTMENT REPORTS FM ROAD 1376 6 MILES NORTH
OF BOERNE HAS WATER OVER THE ROAD. BETWEEN SISTERDLE AND COMFORT 3 AND
ONE HALF INCHES OF RAIN HAS BEEN REPORTED IN LESS THAN AN HOUR. RAIN
MAY CONTINUE INTO THE NEXT HOUR. PERSONS IN KENDALL COUNTY SHOULD
CLOSELY MONITOR WEATHER CONDITIONS.
A FLASH FLOOD WARNING MEANS THAT FLOODING IS IMMINENT OR HAS BEEN
REPORTED.
REMEMBER...DEATHS DURING FLASH FLOODING ARE FREQUENTLY RELATED TO
MOTORISTS DRIVING INTO FLOODED LOW WATER CROSSINGS OR FROM CHILDREN
PLAYING NEAR FLOODED STREAMS OR DRAINAGE AREAS.
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 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, Jul 23, 6:29 PM CDT, 35 minutes before
TXZ039-240200- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SAN ANTONIO, TX 625 PM CDT SUN JUL 22 1990 SHOWERS AND THUNDERSTORMS FORMED TO THE SOUTH OF THE SAN ANTONIO METROPOLITAN AREA EARLIER THIS AFTERNOON. THE THUNDERSTORMS MOVED TO THE NORTH ACROSS MAINLY THE SOUTHERN AND WESTERN PARTS OF THE CITY AND AT 6 PM RADAR INDICATED THAT MOST OF THE ACTIVITY HAD MOVED INTO KENDALL COUNTY WITH A FEW THUNDERSTORMS LINGERING IN NORTHWEST BEXAR COUNTY. THE SAN ANTONIO WEATHER SERVICE HAD MEASURED ONLY TWO HUNDRETHS OF AN INCH OF RAIN...HOWEVER IT IS LIKELY THAT HEAVIER AMOUNTS FELL OVER THE SOUTHERN AND WESTERN PARTS OF THE CITY. SINCE THE STORMS WERE MOVING RAPIDLY TO THE NORTH...AT AROUND 25 MILES AN HOUR...NO FLOODING WAS REPORTED OR FLASH FLOOD WARNINGS ISSUED. ALTHOUGH SAN ANTONIO AT THIS TIME IS NOT UNDER A FLASH FLOOD WATCH...THUNDERSTORMS ARE STILL POSSIBLE THIS EVENING...ALONG WITH BRIEF HEAVY RAIN...FREQUENT LIGHTNING...AND STRONG GUSTY WINDS.
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.