Flash Flood Warning 71, NWS Houston/Galveston, TX

Issued

Nov 21, 2004, 3:03 AM CST (09:03 UTC)

Expired

Nov 21, 2004, 6:00 AM CST

In force

3 hr

Issued by

NWS Houston/Galveston, TX

Area

Counties, with a storm outline in the text

County Jackson County, TX

The Houston radar (KHGX), 155 km from the middle of the area, began a volume at 09:06 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 210908
FFWHGX
TXC239-211200-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
303 AM CST SUN NOV 21 2004

THE NATIONAL WEATHER SERVICE IN LEAGUE CITY HAS ISSUED A

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

* UNTIL 600 AM CST

* AT 301 AM CST...LOCAL LAW ENFORCEMENT OFFICIALS REPORTING 
WIDESPREAD MAJOR FLOODING. NEARLY ALL OF THE STREETS IN GANADO ARE 
IMPASSABLE. MANY STREATS IN EDNA HAVE FLOODED. HIGH WATER RESCUES 
HAVE BEEN REPORTED. 

* FLOODING IS EXPECTED IN OR NEAR...
 ENDA...GANADO...CORDELE AND MORALES.

SCATTERED SHOWERS AND A FEW THUNDERSTORMS EMBEDDED IN A VERY STRONG 
AND MOIST FLOW FROM THE GULF WILL CONTINUE TO DUMP HEAVY RAIN ACROSS 
THE COUNTY. ADDITIONAL RAINFALL AMOUNTS OF 1 TO 2 INCHES WILL BE 
POSSIBLE FURTHER AGGREVATING THE FLOODING. PERSONS SHOULD AVOID 
TRAVEL UNLESS IT IS TO MOVE TO HIGHER GROUND AWAY FROM FLOOD PRONE 
AREAS. DO NOT ATTEMPT TO CROSS WATER FLOWING OVER SUBMERGED BRIDGES 
THE CURRENT COULD SWEEP YOU AND YOUR VEHICLE DOWNSTREAM

EXCESSIVE RUNOFF FROM HEAVY RAINFALL MAY CAUSE FLOODING OF LAND
ADJACENT TO CREEKS AND BAYOUS...DRAINAGE AREAS AND LOW LYING SPOTS.
ADDITIONALLY...FLOODING MAY OCCUR ON...STREETS...FRONTAGE ROADS...AND
HIGHWAY UNDERPASSES. AVOID LOCATIONS WHERE WATER COVERS THE GROUND

SMALL CREEKS...STREAMS...BAYOUS WILL FLOOD..AND FARM-TO-MARKET OR 
OTHER SECONDARY ROADS WILL BE IMPASSABLE. AVOID LOCATIONS 
WHERE WATER COVERS THE GROUND

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

LAT...LON 2917 9663 2898 9633 2872 9633 2872 9633
      2870 9638 2873 9641 2873 9662 2900 9679
      2909 9689 2923 9671 2925 9668

$$

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Nov 20, 9:56 PM CST, 5 hours 7 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
956 PM CST SAT NOV 20 2004

DISCUSSION...
QUITE A BUSY NIGHT WITH THE STORMS AND SUCH. ACTIVITY OVER THE NRN
ZONES HAVE LIFTED OUT AND THE AFOREMENTIONED STORMS TO OUR WSW ARE
STILL MAKING THEIR PRESENCE FELT. SOME ADDITIONAL FLARE UP OF PCPN
NOTED FURTHER WEST...BUT STILL HAVING SOME PROBLEMS LOCATING A REA-
SON (I.E. S/W). WILL LIKELY MAKE A FEW TWEAKS TO THE CURRENT ZONES
(MAINLY FOR OVERNITE POPS: SLIGHTLY LOWERING THEM TO THE NORTH AND
INCREASING OVER THE WEST). STILL OPTING TO LEAVE THE MENTION OF AN
FFA/HEAVY RAIN OUT OF THE ZONES FOR NOW. 41

&&

.HGX WATCHES/WARNINGS/ADVISORIES...SCEC GULF WATERS.

&&

.PRELIMINARY POINT TEMPS/POPS...
COLLEGE STATION (CLL) 66 74 66 76 66 / 60 60 60 50 50
HOUSTON (IAH)         68 76 67 77 67 / 50 50 40 30 30
GALVESTON (GLS)       72 78 72 78 71 / 40 50 20 20 20

&&

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
435 AM CST SAT NOV 20 2004

TXZ163-164-176>179-195>200-210>214-226-227-235>238-211200-
AUSTIN-BRAZORIA-BRAZOS-BURLESON-CHAMBERS-COLORADO-FORT BEND-GALVESTON-
GRIMES-HARRIS-HOUSTON-JACKSON-LIBERTY-MADISON-MATAGORDA-MONTGOMERY-
POLK-SAN JACINTO-TRINITY-WALKER-WALLER-WASHINGTON-WHARTON-
435 AM CST SAT NOV 20 2004

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHEAST TEXAS.

...HEAVY RAINFALL AND SOME SEVERE THUNDERSTORMS POSSIBLE THIS
WEEKEND AND ON INTO MONDAY AND TUESDAY ACROSS SOUTHEAST TEXAS...

.DAY ONE...TODAY AND TONIGHT
A WARM FRONT PUSHING NORTH ACROSS SOUTHEAST TEXAS ALONG WITH PASSING
UPPER LEVEL DISTURBANCES WILL RESULT IN SCATTERED TO NUMEROUS
SHOWERS AND THUNDERSTORMS. LOCALLY HEAVY RAIN IS POSSIBLE. WITH THE
ALREADY SATURATED GROUNDS...SOME FLOODING MAY BE POSSIBLE.
ALSO...SOME OF THE STORMS MAY BECOME SEVERE. A LONG DURATION FLOOD
WATCH MAY BE ISSUED LATER TODAY.

.DAYS TWO THROUGH SEVEN...SUNDAY THROUGH FRIDAY.
THROUGH TUESDAY...WIDESPREAD RAINFALL ACCUMULATIONS OF 1 TO 3 INCHES
WITH ISOLATED TOTALS APPROACHING 5 INCHES WILL BE POSSIBLE. WITH THE
GROUND ACROSS MUCH OF SOUTHEAST TEXAS NEARLY SATURATED...A FLOOD
THREAT MAY DEVELOP.

SEVERE THUNDERSTORMS MAY ALSO DEVELOP ACROSS SOUTHEAST TEXAS AND THE
ADJACENT COASTAL WATERS SUNDAY ON INTO MONDAY AND TUESDAY. THE MAIN
THREAT WILL PROBABLY BE STRONG DAMAGING WINDS AND ISOLATED TORNADOES.

.SPOTTER INFORMATION STATEMENT...
SPOTTER ACTIVATION MAY BE NEEDED THIS WEEKEND.

Flash Flood Warnings in Texas, 2004Every flash flood warning in 2004

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.