Flash Flood Warning 47, NWS Houston/Galveston, TX

Issued

Sep 11, 1998, 12:09 AM CDT (05:09 UTC)

Expired

Sep 11, 1998, 4:10 AM CDT

In force

4 hr

Issued by

NWS Houston/Galveston, TX

Area

Whole counties

County Galveston County, TX

The Houston radar (KHGX), 32 km from the middle of the area, began a volume at 05:10 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 110509
FFWHOU
TXC167-110910-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
1209 AM CDT FRI SEP 11 1998

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A

* FLASH FLOOD WARNING FOR...
  GALVESTON COUNTY IN SOUTHEASTERN TEXAS

* UNTIL 410 AM CDT

* AT 1210 AM CDT... NATIONAL WEATHER SERVICE RADAR INDICATED
  A LARGE CLUSTER OF SHOWERS AND THUNDERSTORMS WITH VERY HEAVY RAIN
  OVER MAINLAND GALVESTON COUNTY... MOVING NORTHWEST AT 20 MPH.

* THE LARGE CLUSTER OF SHOWERS AND THUNDERSTORMS WAS PRODUCING 2 TO 3
  INCHES OF RAIN PER HOUR. IN ADDITION THIS CLUSTER OF STORMS IS
  BEING FED BY MORE STORMS OFFSHORE THAT WILL MOVE IN ACROSS
  GALVESTON ISLAND AND BOLIVAR PENINSULA DURING THE NEXT COUPLE OF
  HOURS.

  DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE WATER COVERS THE
  ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO
  CROSS SAFELY. VEHICLES CAUGHT IN RISING WATTER SHOULD BE ABANDONED
  QUICKLY.  MOVE TO HIGHER GROUND.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Sep 10, 8:33 PM CDT, 3 hours 36 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
833 PM CDT THU SEP 10 1998

LATEST UPDATE FROM NHC HAS SHIFTED CENTER OF FRANCES NORTHWARD AND
MUCH CLOSER TO HOME.  THIS COINCIDES WELL WITH LATEST SFC/BUOY
REPORTS AND SATL IMAGERY.   FA IS GETTING POUNDED BY HEAVY RAINBANDS
WITH EMBEDDED STRONGER TSTMS.  SOME OF THE STRONGER CELLS ARE
SHOWING ROTATION ON RADAR.  EXPECT THREATS OF FLASH FLOODING AND
ISOLATED TORNADOS TO CONT THRU TNGT...ESPECIALLY OVR THE COASTAL
SECTIONS.  WITH FRANCES NOW CLOSER TO FA...TIGHTENING PRES GRADIENT
WILL ALLOW DANGEROUSLY STRONG WNDS TO PERSIST AND EVEN STRENGTHEN
THRU THE NGT AND ON FRI AS THE STORM DRIFTS NNW.

CRNT FCST HAS GOOD HANDLE ON ALL BUT MAYBE WINDS.   WOULD LIKE TO
BUMP UP WNDS ALONG COASTAL ZONES FOR NXT TWO PERIODS TO 35 TO 45 MPH
WITH GUST TO 55 TO 65 MPH.  ALSO BUMP UP HARRIS COUNTY WINDS FOR NXT
TWO PERIODS TO 20 TO 25 MPH WITH GUST TO 30 TO 40 MPH.  RMNG INLAND
ZONES SHUD READ 15 TO 25 MPH WITH MENTION OF HIGHER GUST.
39

PRELIMS...
       SKY       TEMPS    POPS          WINDS
CLL E/E E/E  76/85 76/90  *865  15-25GSTY/15-25GSTY       FFA
NE  C/C E/E  76/85 76/90  *866  15-25GSTY/15-25GSTY       FFA
IAH C/C C/C  76/84 76/88  **76  20-25G30-40/20-25G30-40   FFA
GLS C/C C/C  78/83 78/86  **87  35-45G55-65/35-45G55-65   FFA

Flash Flood Warnings in Texas, 1998Every flash flood warning in 1998

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.