Flash Flood Warning 48, NWS Houston/Galveston, TX

Issued

May 24, 1997, 6:35 PM CDT (23:35 UTC)

Expired

May 24, 1997, 9:30 PM CDT

In force

3 hr

Issued by

NWS Houston/Galveston, TX

Area

Whole counties

County Harris County, TX

The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 23:38 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

000 
TTAA00 KHOU 242333
FFWHOU
TXC201-250230-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLOOD AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
635 PM CDT SAT MAY 24 1997
 
THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  930 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHEAST TEXAS
 
   ...HARRIS COUNTY
 
AT 625 PM CDT...VERY HEAVY RAIN ASSOCIATED WITH STRONG THUNDERSTORMS
CONTINUE TO MOVE ACROSS HARRIS COUNTY THIS EVENING. RAINFALL TOTALS
SINCE THIS AFTERNOON HAVE AVERAGED 2 TO 3 INCHES WITH ISOLATED TOTALS
TO 5 TO 6 INCHES.  MANY BAYOUS...STREAMS...CREEKS HAVE FLOODED.
BUFFALO BAYOU AT THE CONFLUENCE WITH WHITE OAK BAYOU IS OVER BANKS
AND CAUSING FLOODING UNDER THE OVERPASSES OF I-10 AND I-45 AND DOWN
STREAM.  PERSONS TRAVELLING IN NORTHERN DOWNTOWN SHOULD AVOID THE MILAM
AND COMMERCE AREAS.  THIS FLOODING IS COMPARABLE TO JUNE 1989 FLOOD.
ALSO...THE CONFLUENCE OF LITTLE WHITE OAK AND WHITE OAK BAYOU MAY
ALSO SEE FLOODING DUE TO BACKWATER EFFECT.  HALLS BAYOU AT JENSEN ROAD
IS 3 FEET ABOVE BANK AT THIS TIME.  PERSONS IN THIS AREA MAY ALREADY
BE EXPERIENCING FLOODING IN SOME HOMES.  AT GARNERS BAYOU AT BELTWAY
8...WATERS IS 2.5 FEET ABOVE BANK AND APPROACHING 10 YEAR FLOOD LEVELS.
AT CYPRESS CREEK AND GRANTS ROAD IS AT TOP OF BANK AND AN ADDITIONAL
SLIGHT RISE MAY OCCUR OVER THE NEXT FEW HOURS.
 
THE HEAVIEST RAIN HAS MOVED SOUTH OF THE DOWNTOWN AREA INTO BRAZORIA AND
GALVESTON COUNTIES. FLOODING WILL LIKELY CONTINUE ACROSS MUCH OF THE
HOUSTON METROPOLITAN AREA FOR THE NEXT 3 HOURS
.
 
THIS IS A DANGEROUS FLOOD SITUATION.  MOST FLASH FLOOD DEATHS OCCUR
IN AUTOMOBILES. DO NOT ATTEMPT TO CROSS BRIDGES...DIPS...OR
UNDERPASSES.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO
RECOGNIZE THE DANGERS OF FLOODS AND FLASH FLOODS. IF FLASH
FnLOODING IS OBSERVED...ACT QUICKLY. MOVE UP TO ESCAPE FLOOD
WATERS. DO NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER
BEGINS RISING.
 
 
 
&

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at May 24, 2:45 PM CDT, 3 hours 50 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
245 PM CDT SAT MAY 24 1997

A LOT OF COVERAGE ON THE RADAR THIS AFTN.  CONVECTION ASSOCIATED WITH
THAT 2ND S/W - WITH THE AMS OVER SE TX STILL VERY UNSTABLE/MOIST/WARM
(ADAP LIs AOA -8/SFC DWPNTS IN THE LWR 70S).  AFTER THE ACTIVITY THIS
AFTN, THINGS SHOULD CALM DOWN A BIT FOR THE REMAINDER OF THE MEMORIAL
DAY WEEKEND.  UPPER FLOW GOES ZONAL TONITE AS THE MID-LEVELS BECOME A
BIT MORE SWLY.  WHILE AT THE SFC... MOST OF THE MOISTURE GETS SCOURED
(BY WAY OF THE STORMS TODAY) WITH THE AMS REMAINING VERY UNSTABLE (LI
PROGGED FOR TOMORROW: -6/-10 AND CAPES PROGGED AT 30-50K).  AGAIN, NO
MOISTURE TO WORK ON AND NO FOCI/TRIGGERS INDICATED BY THE MODELS THRU
MONDAY (EXCEPT MAYBE THE SEABREEZE).  SFC WINDS ALSO BECOME MORE SWLY
THRU MON.  SO, THE BOTTOM LINE FCST: DRYING AND WARMING.  WILL TAKE A
BLEND OF GUIDANCE NUMBERS.  41

PRELIMS...
CLL T-E/E-B B/B 67/90 69/93 6222 (+R/SVR WX TONIGHT)
IAH T-E/E-B B/B 70/90 73/92 6222 (+R/SVR WX TONIGHT)
GLS T-E/E-B B/B 74/84 75/86 2222

Flash Flood Warnings in Texas, 1997Every flash flood warning in 1997

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; radar from the NEXRAD Level II archive.