Flash Flood Warning 36, NWS Houston/Galveston, TX

Issued

Jun 8, 2001, 7:55 PM CDT (00:55 UTC)

Expired

Jun 9, 2001, 12:00 AM CDT

In force

4 hr

Issued by

NWS Houston/Galveston, TX

Area

Whole counties; the outline is the Mesonet’s reconstruction

County Harris County, TX

The Houston radar (KHGX), 54 km from the middle of the area, began a volume at 00:58 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 
WGUS54 KHGX 090055
FFWHOU
TXC201-090500-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
755 PM CDT FRI JUN 8 2001

THE NATIONAL WEATHER SERVICE HAS EXTENDED THE

* FLASH FLOOD WARNING FOR...
  HARRIS COUNTY IN SOUTHEAST TEXAS

* UNTIL 1200 AM CDT

* THIS IS A VERY DANGEROUS FLOOD SITUATION MAJOR ROAD FLOODING IS 
OCCURRING OVER MANY PARTS OF THE HOUSTON METROPOLITAN AREA. AT 750 
PM CDT...DOPPLER RADAR INDICATED VERY HEAVY RAINFALL CONTINUING OVER 
MOST OF HARRIS COUNTY. THREE HOUR RADAR RAINFALL ESTIMATES EXCEEDED 
7 INCHES FROM CHANNEL VIEW SOUTH TO NEAR HIGHWAY 225. MUCH OF 
HOUSTON INSIDE LOOP 610 HAS HAD 3 TO 5 INCHES OF RAINFALL.  MORE IS 
ON THE WAY.  HEAVY THUNDERSTORMS CONTINUE TO DEVELOP OVER FORT BEND 
NORTHERN BRAZORIA COUNTY THEN MOVE NORTHEAST AND MERGE WITH THE RAIN 
OVER HARRIS COUNTY.  EXPECT AT LEAST 2 TO 4 MORE INCHES OF RAIN BY 
11 PM.

* FLOODING IS OCCURRING AT MANY LOCATIONS THROUGHOUT HARRIS COUNTY. 

IF AT ALL POSSIBLE...DO NOT TRAVEL IN HARRIS COUNTY UNTIL THIS FLOOD 
THREAT HAS PASSED.

SMALL CREEKS...STREAMS...BAYOUS...UNDERPASSES...AND FEEDER ROADS MAY
FLOOD QUICKLY. AVOID LOCATIONS WATER COVERS THE GROUND

USE EXTRA CAUTION AT NIGHT WHEN IT IS HARDER TO RECOGNIZE THE DEPTH
AND SPEED OF FLASH FLOOD WATERS.

PLEASE REPORT FLOODING TO THE COUNTY SHERIFF...LOCAL POLICE...OR
DEPARTMENT OF PUBLIC SAFETY. THEY WILL RELAY YOUR REPORT TO THE
NATIONAL WEATHER SERVICE.

LAT...LON 3001 9512 2960 9509 2973 9563 3007 9588

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Jun 8, 3:42 PM CDT, 4 hours 13 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
252 PM CDT FRI JUN 8 2001

A DANGEROUS FLASH FLOOD THREAT PERSISTS ACROSS SOUTHEAST TEXAS AS
THE CIRCULATION CENTER OF FORMER TROPICAL DEPRESSION ALLISON REMAINS
OVER THE BRENHAM AREA. WITHIN THE LAST HOUR...THUNDERSTORMS HAVE
BEGUN TO LINE UP ALONG I-45 IN NORTHERN MONTGOMERY COUNTY. CLOUD
TOPS HAVE BEGUN TO COOL AND LIGHTNING STRIKES ARE ON THE INCREASE
WITH THESE STORMS TOO. A MORE SOLID AREA OF SHOWERS (WITH COOLING
TOPS TOO) CONTINUES TO THE NORTH THROUGH NORTHEAST OF THE CIRCULATION
CENTER FROM AROUND SOMERVILLE TO ROANS PRAIRIE. THIS COULD BE THE
BEGINNING OF THE EXPECTED EVENTUAL FORMATION OF A SOLID LINE OF
SHOWERS AND THUNDERSTORMS THAT WILL BEGIN TO TRAIN NORTH AND
NORTHEAST AND LEAD TO THE INCREASING THREAT FOR FLASH FLOODING.
MODELS STRONGLY POINT TOWARD THE HEAVY RAIN THREAT ACROSS A LARGE
PORTION OF SOUTHEAST TEXAS INTO THE EVENING HOURS AND OVERNIGHT
TONIGHT. LOW LEVEL FLOW OFF THE GULF IS PROGGED TO INCREASE AND A
CONVERGENCE ZONE SHOULD BE ABLE TO SET UP TO THE NORTH OF THE
HOUSTON AREA OVERNIGHT WHICH WILL ALSO HELP TO ENHANCE RAINFALL. IT
IS STILL A BIT TOO EARLY TO GET A GOOD FEEL AS TO EXACTLY WHERE THE
HEAVIEST RAINS WILL DEVELOP...BUT CONFIDENCE IS VERY HIGH THAT BY
TOMORROW MORNING WE'LL SEE RAINFALL TOTALS IN SPOTS ACROSS OUR
FORECAST AREA AROUND 5 INCHES AND APPROACHING OR EXCEEDING 10 INCHES
IN ISOLATED SPOTS. THESE NUMBERS MAY NEED TO BE ADJUSTED EVEN
GREATER THAN 10 INCHES BEFORE THE NIGHT ENDS.

OUR HEAVY RAINS SINCE TUESDAY HAVE LEFT GROUNDS VERY WET...AND IT
WILL NOT TAKE MUCH TO CAUSE MORE FLOODING. THE FLASH FLOOD WATCH
WILL REMAIN IN EFFECT FOR ALL OF SOUTHEAST TEXAS THROUGH TONIGHT.

WILL CONTINUE THE HIGH POP FORECAST THROUGH SUNDAY...THEN DECREASE
TO A CHANCE OF PRECIP IN THE EXTENDED FORECAST. THE NEXT 24 TO 36
HOURS APPEAR TO BE THE TIME FRAME FOR THE GREATEST THREAT FOR RAINS
AND FLOODS.

42/35/39/DH

.HGX...FLASH FLOOD WATCH ALL OF SOUTHEAST TEXAS THROUGH TONIGHT.
        SMALL CRAFT EXERCISE CAUTION 0-60 NM WATERS.

PRELIMS...
CLL TT 071/082 071/082 071 +95
IAH TT 072/084 072/085 072 +97
GLS TT 075/084 075/084 075 +97

Flash Flood Warnings in Texas, 2001Every flash flood warning in 2001

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.