Flash Flood Warning 35, NWS Houston/Galveston, TX

Issued

Sep 8, 2002, 11:35 AM CDT (16:35 UTC)

Expired

Sep 8, 2002, 2:30 PM CDT

In force

3 hr

Issued by

NWS Houston/Galveston, TX

Area

Counties, with a storm outline in the text

County Liberty County, TX

The Houston radar (KHGX), 89 km from the middle of the area, began a volume at 16:36 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 081635
FFWHOU
TXC291-081930-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1130 AM CDT SUN SEP 8 2002

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

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

* UNTIL 230 PM CDT

* AT 1121 AM CDT...DOPPLER RADAR INDICATED TRAINING HEAVY RAINFALL 
MOVING SOUTH TO NORTH ACROSS THE COUNTY WITH RAINFALL RATES OF 1.5 
TO 2.0 INCHES PER HOUR. THE SHERIFF CONTINUES TO REPORT LOCAL 
STREET FLOODING INCLUDING: FM 2518 NEAR HIGHWAY 105...FM 1413 SOUTH 
OF DAYTON...AND THE CEDAR OAKS SUBDIVISION. AT COUNTYLINE ROAD AND 
FM 1409 THE BRIDGE IS ALLEGED TO HAVE BEEN WASHED OUT OR IN THE 
PROCESS OF DOING SO. RADAR ESTIMATES INDICATE AROUND 3 INCHES OF 
RAIN HAS FALLEN IN THE PAST 3 HOURS BRINGING A 6 HOUR TOTAL TO 
BETWEEN 6 AND 10 INCHES. ANOTHER 3 TO 4 INCHES IS POSSIBLE THROUGH 
230 PM.

* FLOODING IS EXPECTED IN OR NEAR...
  LIBERTY...DAYTON...DAISETTA...AMES...CLEVELAND...RYE...RAYBURN...  
  MOSS HILL
   
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 3048 9475 3013 9465 2992 9450 2992 9495
          3031 9513 3042 9493

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Sep 8, 9:45 AM CDT, 1 hour 50 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
945 AM CDT SUN SEP 8 2002

A LARGE AREA OF SHRA/TSRA ONGOING THIS MORNING. SEVERAL OF THE
STORMS HAVE SHOWN SIGNS OF ROATATION. MORNING SOUNDINGS SHOW PWS
AOA 2.3 INCHES...K INDICES IN THE UPPER 30S AND HELICITY VALUES
150-200. 13Z ANALYSIS SHOWS A WEAK SFC BOUNDARY DRAPED ACROSS THE
REGION VCT TO LFT AND SFC STREAMLINES SHOW STRONG CONFLUENCE ACROSS
SE TX. 85H DEW PTS ARE 16 C AND 85H WINDS ARE SLIGHTLY CONFLUENT AS
WELL. BEST 85H INFLOW LIES ALONG A LCH TO OUN LINE. IR IMAGERY
REVEALS A NICE FETCH OF MSTR LINING UP FROM CHAMBERS COUNTY
SOUTHEAST INTO THE GULF. THIS AREA OF MSTR LOOKS LIKE IT WILL STREAM
INLAND AND AFFECT THE NE ZONES LATER THIS AFTERNOON. NO CHANGES TO
CURRENT FORECAST. MAYBE AN UPDATE LATER IF MESO-BNDRYS WREAK HAVOC.

43/47

.HGX...FLASH FLOOD WATCH THROUGH TONIGHT.
       SCA GULF WATERS.

PRELIMS...
CLL TT 086/075 088/074 091 874
IAH TT 085/076 087/075 089 976
GLS TT 085/080 086/080 086 965

In the hours before

TXZ210-226-235-236-081600-

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
553 AM CDT SUN SEP 8 2002

...ISOLATED TORNADOES POSSIBLE THIS MORNING SOUTHWEST OF A
COLUMBUS TO WHARTON TO SARGENT LINE...

DEEP TROPICAL MOISTURE STREAMING INTO THE REMAINS OF FAY WILL FUEL
THUNDERSTORMS OVER THESE AREAS AND SOUTH TEXAS AS WELL. STORMS
SHOULD CONTINUE TO DEVELOP FROM THE COLUMBUS AREA SOUTH TO THE
MATAGORDA BAY AREA AND SOUTH INTO THE COASTAL BEND WATERS. THESE
STORMS WILL BE DEVELOPING IN A REGION OF ENHANCED WIND SHEAR AND
MAY BE CAPABLE OF PRODUCING SHORT LIVED TORNADOES.  AS THE WINDS
IN THIS AREA RELAX THIS LATE THIS MORNING THE THREAT FOR TORNADOES
WILL LIKELY DIMINISH.

PERSONS SHOULD MONITOR LATEST WEATHER INFORMATION IN CASE A TORNADO
WATCH OR WARNING IS ISSUED FOR YOUR AREA.

STAY TUNED TO NOAA WEATHER RADIO OR OTHER WEATHER NEWS SOURCES FOR
FURTHER UPDATES ON THIS SEVERE WEATHER THREAT.

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.