Flash Flood Warning 65, NWS Houston/Galveston, TX

Issued

Sep 16, 1998, 3:30 PM CDT (20:30 UTC)

Expired

Sep 16, 1998, 6:10 PM CDT

In force

3 hr

Issued by

NWS Houston/Galveston, TX

Area

Whole counties

County Jackson County, TX

000 
TTAA00 KHOU 162029
FFWHOU
TXC239-162310-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
330 PM CDT WED SEP 16 1998

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS EXTENDED THE

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

* UNTIL 610 PM CDT

* AT 300 PM RADAR AND SPOTTER REPORTS INDICATED LIGHT TO MODERATE
  RAIN CONTINUED TO FALL OVER MUCH OF JACKSON COUNTY.  THE HEAVIEST
  RAINFALL WAS ALONG AND WEST OF A LINE FROM EDNA TO LA WARD...WITH
  RAINFALL RATES OF 1/2 TO 3/4 OF AN INCH PER HOUR.

* SINCE 3 PM TUESDAY...FROM 3 TO 5 INCHES OF RAIN HAS FALLEN
  OVER ALREADY SATURATED GROUND ACROSS CENTRAL PORTIONS OF JACKSON
  COUNTY.  REPORTS FROM THE SHERIFF DEPARTMENT AT 300 PM INDICATED
  THAT 21 ROADS WERE UNDER WATER.  A COMBINATION OF THE RAINFALL
  AND FLOODING ALONG DRY CREEK WAS THREATENING THE SOUTH BOUND LANES
  OF US-59 SOUTHWEST OF EDNA.  VOLUNTARY EVACUATIONS WERE BEING
  RECOMMENDED BY THE EDNA EMERGENCY MANAGER IN LOW-LYING AREAS ALONG
  DRY CREEK IN THE CITY OF EDNA.

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 WATER 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 16, 2:20 PM CDT, 1 hour 10 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
220 PM CDT WED SEP 16 1998

ALTHOUGH MODELS HAVE BEEN CONSISTENT WITH DRYING AIRMASS OVR
FA...THIS HAS BEEN VERY SLOW TO OCCUR. SOME DRYING HAS OCCURRED OVER
EXT SE TX. THIS IS EVIDENT IN WV LOOP AND LCH 12Z SOUNDING. BELIEVE
E ZONES OF FA WILL HAVE A REDUCED CHC OF RAIN COMPARED TO W ZONES
FOR FIRST PART OF FORECAST PD. MODELS SHOW PW DECREASING TO LESS
THAN 2 INCHES BY TOMORROW ACROSS FA FOR THE FIRST TIME IN QUITE A
WHILE.

WILL CONTINUE FFA FOR SW PORTIONS OF FA TONIGHT DUE TO CURRENT
PROBLEMS AND LL CONVERGENCE ACROSS THIS AREA. ANY FURTHER RAINFALL
TONIGHT WILL CAUSE PROBLEMS DUE TO SATURATION OF GROUND AND FLOODED
CREEKS.

THERE IS A DECENT AMOUNT OF UNCERTAINTY AT END OF FP DUE TO
POTENTIAL DEVELOPMENT WITH THE AREA OF LOW PRESSURE IN THE GULF.
HOWEVER...FA LIKELY TO BE ON SUBSIDENT SIDE DURING LAST 24 HRS OF
THE FORECAST PD...SO WILL INCLUDE SCT POPS FOR AFT HEATING INDUCED
SHWRS AND TSTMS AND CONTINUING EVENING ACTIVITY.

WILL CONTINUE COASTAL FLOOD WATCH AS LEVELS REMAIN CLOSE TO 2 FEET
ABOVE PREDICTED HEIGHTS AND EASTERLY FLOW WILL CONTINUE WITH
POSSIBLE INCREASE DURING 24-36 HR TIME FRAME IF TROPICAL WV
DEVELOPS.  GIVEN PROGGED SFC PRESSURE PATN...FLOW LIKELY TO BECOME
NE ALONG TX COAST WHICH WILL NOT ALLOW FOR ANY IMPROVEMENT IN TIDE
LEVELS.

PRELIMS...
IAH C/E B/B 75/89/74/90 3323

CLL C/E B/B 75/88/73/91 4323

GLS E/B B/B 80/88/78/88 3223

SW  C/E B/B 76/88/76/90 5323 FFA TONIGHT
(WHARTON,JACKSON,MATAGORDA,COLORADO,AUSTIN)

33

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.