Flash Flood Warning 20, NWS Austin/San Antonio, TX

Issued

May 22, 1990, 3:34 AM CDT (08:34 UTC)

Expired

May 22, 1990, 4:34 AM CDT

In force

60 min

Issued by

NWS Austin/San Antonio, TX

Area

Whole counties

County Val Verde County, TX

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

000 
TTAA00 KDRT 220834
FFWDRT
TXC465-221230-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE DEL RIO TX
334 AM CDT TUE MAY 22 1990
 
THE NATIONAL WEATHER SERVICE IN DEL RIO HAS ISSUED A
SEVERE THUNDERSTORM EFFECTIVE UNTIL 434 AM CDT AND FLASH FLOOD WARNING
EFFECTIVE UNTIL  730 AM CDT
FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN SOUTH CENTRAL TEXAS
 
   ...VAL VERDE COUNTY
 
AT 335 AM CDT HONDO RADAR SHOWS A SEVERE THUNDERSTORM LOCATED OVER OR
JUST TO THE EAST OF LAKE AMISTAD NEAR ROUGH CAYNON. ROUGH CAYNON
RANGER REPORTED VERY HEAVY RAIN...DANGEROUS LIGHTNING AND MARBLE SIZE
HAIL AS THE STORM PASSED OVER. THIS THUNDERSTORM INDICATES THE
POSSIBILTY OF PRODUCING LARGE HAIL.
 
THE SLOW MOVEMENT OF THESE STORMS TO THE EAST INCREASE THE CHANCES OF 
FLOODING OF LOW WATER CROSSINGS AND LOW LYING AREAS.
 
MOTORISTS ARE URGED NOT TO DRIVE ACROSS FLOODED LOW WATER CROSSING AND
TO APPROACH ANY LOW WATER CROSSINGS WITH CAUTION.  AS MODERATE RAINS
CONTINUE IN DEL RIO MINOR FLOODING OF STREETS AND LOW LYING AREAS WITH
OCCURR.
 
IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER FROM THE WEATHER IN A
STRONG BUILDING.  DAMAGING WIND...LARGE HAIL...VERY HEAVY RAIN...
AND DEADLY LIGHTNING ARE ALL POSSIBLE IN SEVERE THUNDERSTORMS.
STAY INSIDE AWAY FROM WINDOWS UNTIL THE STORM HAS PASSED.
 
NNNN

In the hours before

STORM REPORT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
1009 PM CDT MON MAY 21 1990

TIME                EVENT

243 PM CDT          GOLFBALL SIZED HAIL WITH HEAVY RAIN AND GUSTY
                    WIND SOUTHWEST OF KERRVILLE

650 PM CDT          GOLFBALL SIZED HAIL WITH HIGH WINDS 6 WEST OF UVALDE

TXZ038-041-054-220530-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
1110 PM CDT MON MAY 21 1990

A THUNDERSTORM HAD REDEVELOPED JUST BEFORE 1100 PM THIS EVENING ABOUT
8 MILES TO THE NORTHWEST OF THE CITY OF DEL RIO.  THIS STORM WAS MOVING
TO THE SOUTHEAST AT 10 MPH.  IF IT CONTINUES ITS CURRENT DIRECTION AND
RATE OF SPEED...IT WILL REACH THE CITY OF DEL RIO SHORTLY BEFORE MIDNIGHT.
IN THE VERY UNSTABLE AIRMASS OVER THE EDWARDS PLATEAU TONIGHT...SUCH
SHOWERS AND THUNDERSTORMS CAN BUILD VERY RAPIDLY...PRODUCING BRIEF BUT
VERY HEAVY RAIN...GUSTY WINDS...DANGEROUS LIGHTNING...AND EVEN SOME HAIL.

ADDITIONAL THUNDERSTORMS WERE INDICATED BY WEATHER SERVICE RADAR AT
1105 PM IVN THE MOUNTAINS OF MEXICO...FROM ABOUT 30 MILES WEST OF EAGLE
PASS TO AROUND 40 MILES WEST OF LAREDO.  LITTLE MOVEMENT WAS INDICATED
WITH THESE THUNDERSTORMS.

TXZ038-054-220900-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SAN ANTONIO, TX
250 AM CDT TUE MAY 22 1990

AT 245 AM CDT AN AREA OF THUNDERSTORMS EXTENDED FROM JUST NORTH OF DEL RIO
SOUTHWARD ALONG THE RIO GRANDE RIVER TO THE SOUTHERN END OF MAVERICK
COUNTY.  THESE THUNDERSTORMS WERE DRIFTING VERY SLOWLY TOWARD THE EAST.

PEOPLE IN MAVERICK AND WESTERN KINNEY COUNTIES CAN EXPECT BRIEF HEAVY
RAINS...FREQUENT LIGHTNING...AND POSSIBLE HAIL DURING THE NEXT HOUR OR
TWO.

Flash Flood Warnings in Texas, 1990Every flash flood warning in 1990

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.