Flash Flood Warning 19, NWS Houston/Galveston, TX

Issued

Aug 15, 2002, 1:45 PM CDT (18:45 UTC)

Expired

Aug 15, 2002, 5:00 PM CDT

In force

3 hr

Issued by

NWS Houston/Galveston, TX

Area

Counties, with a storm outline in the text

Counties Brazoria County, TX, Galveston County, TX, Harris County, TX

The Houston radar (KHGX), 8 km from the middle of the area, began a volume at 18:46 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.

Not verified. The Iowa Environmental Mesonet's Cow found no qualifying storm report inside this flash flood warning while it was in force. That is not proof nothing happened: reports are thin where few people live.

Cow counts a report within 15 km of the polygon while the warning was in force: a tornado for a tornado warning; hail of 1 inch or more, a gust of 58 mph or more or wind damage for a severe thunderstorm warning; a flash flood report for a flash flood warning.

000 
WGUS54 KHGX 151845
FFWHOU
TXC039-167-201-152200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
145 PM CDT THU AUG 15 2002

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  EASTERN HARRIS COUNTY IN SOUTHEAST TEXAS
  BRAZORIA COUNTY IN SOUTHEAST TEXAS
  GALVESTON COUNTY IN SOUTHEAST TEXAS

* UNTIL 500 PM CDT

* AT 145 PM CDT...DOPPLER RADAR INDICATED STRONG THUNDERSTORMS 
PRODUCING VERY HEAVY RAINFALL EAST OF A ROSHARON TO MANVEL TO SOUTH 
HOUSTON LINE. FEEDER ROADS ALONG I-45 AND MANY SECONDARY ROADS ARE 
BECOMING WATER COVERED. THE CITY OF GALVESTON HAS RECEIVED OVER 11 
INCHES OF RAIN IN THE LAST 12 HOURS. 5 TO 7 INCHES OF RAIN HAS 
FALLEN OVER PARTS OF EASTERN BRAZORIA AND EASTERN HARRIS COUNTIES. 
ANOTHER 1 TO 3 INCHES OF RAIN WILL BE POSSIBLE BY 5 PM.

* FLOODING IS EXPECTED IN OR NEAR...
  GALVESTON...HITCHCOCK...HOBBY AIRPORT...ELLINGTON FIELD...WEBSTER

DO NOT CROSS ANY LOCATION WHERE WATER COVERS THE ROAD

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 2961 9514 2921 9468 2896 9549 2981 9532

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Aug 15, 9:55 AM CDT, 3 hours 50 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
955 AM CDT THU AUG 15 2002

STARTING TO SEE ADDITIONAL DEVELOPMENT SW OF AREA THAT GOT HAMMERED
LATE LAST NIGHT AND EARLY THIS MORNING. HVY RAIN AREAS AS FAR N AS
CLL ATTM. HAVE OPTED TO GO WITH FFA FOR ALL BUT SW CORNER OF CWA
THIS AFTN. WONT TAKE MUCH TO CAUSE MORE FLD PROBLEMS GIVEN
SATURATED GROUND.

SFC ANALYSIS SHOWS MESO BOUNDARY JUST W OF A BRENHAM TO ANGLETON
LN. AREA ALONG AND EAST OF THIS LINE OF MOST CONCERN.

MODELS INDC ENHANCED LIFT AND MOISTURE EXITING THE REGION DRG THE
AFTN. AM NOT ANTICIPATING ANY PROBS TNGT.

FFA ALREADY OUT. NEW ZFP SHORTLY.

46/37/30/WT

.HGX....SCA OFFSHORE...SCEC NEARSHORE.

PRELIMS...
CLL EB 090/076 094/075 095 623
IAH TB 087/076 092/076 094 734
GLS TB 086/080 088/080 089 744
SW COAST                   534

Flash Flood Warnings in Texas, 2002Every flash flood warning in 2002

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.