Flash Flood Warning 19, NWS Houston/Galveston, TX

Issued

Mar 12, 1997, 3:55 PM CST (21:55 UTC)

Expired

Mar 12, 1997, 6:30 PM CST

In force

3 hr

Issued by

NWS Houston/Galveston, TX

Area

Whole counties

County Harris County, TX

000 
TTAA00 KHOU 122203
FFWHOU
TXC201-130030-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
355 PM CST WED MAR 12 1997

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON HAS ISSUED A FLASH
FLOOD WARNING EFFECTIVE UNTIL 630 PM CST FOR PEOPLE IN THE FOLLOWING
LOCATION...

IN SOUTHEAST TEXAS

          ...HARRIS COUNTY ...

AT 350 PM...A LARGE AERA OF RAIN AND THUNDERSTORMS EXTENDED MAINLY
EAST OF A LINE FROM NEAR LUFKIN TO CONROE TO FREEPORT...  AND
CONTINUED TO PRODUCE MODERATE TO HEAVY RAINS OVER EAST HARRIS COUNTY.
MOVEMENT WAS NORTH AT 15 MILES AN HOUR.  THE THUNDERSTORMS WILL BRING
ADDITIONAL RAINFALL AMOUNTS OF 1/4 TO 1 INCH.

FLASH FLOODING HAS BEEN REPORTED AT NUMEROUS LOCATIONS IN HARRIS
COUNTY...FLOODING FRONTAGE ROADS IN LOW-LYING AREAS...AND WITH THE
GROUND SATURATED ACROSS THE REGION...ADDITIONAL RAINS MAY AGGRAVATE
THE ONGOING FLASH FLOODING.

FLOODING IN LOW-LYING AREAS SHOULD BEGIN TO DISSIPATE AFTER 5 PM AS
THE AREA OF SHOWERS AND THUNDERSTORMS MOVES EAST OF THE WARNED AREA.

MOTORISTS SHOULD USE EXTREME CAUTION AND AVOID DRIVING ACROSS AREAS
COVERED WITH WATER...ESPECIALLY IN LOW LYING AREAS. VEHICLES CAUGHT
IN RISING WATERS SHOULD BE ABANDONED QUICKLY.

STAY TUNED TO THIS NOAA WEATHER RADIO...LOCAL RADIO OR
TELEVISION...OR CABLE TELEVISION FOR FURTHER UPDATES.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Mar 12, 2:52 PM CST, 1 hour 3 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
248 PM CST WED MAR 12 1997

LOCALLY HEAVY RAIN CONTINUES MAINLY EAST OF I-45 THIS AFTERNOON.
LOOKING AT THE OBS WINDS HAVE COME AROUND TO THE S/SE AND HAVE
STRENGHTENED A BIT.  WARM FRONT APPEARS TO HAVE STALLED NEAR ACT.
WEAK SFC TROF FROM NEAR IAH TO FREEPORT TO EAST OF BOUY019. THE
SOUTHERN END OF THIS TROF APPEARS TO BE ROTATING TO THE EAST AS
MID/UPPER LOW MOVES CLOSER.  THIS SHOULD HELP TO ENHANCE PRECIP TO
THE E AND NE.  WILL CONTINUE THE FLASH FLOOD WATCH THROUGH THIS
EVENING EAST OF A LINE FROM ENDA TO RICHMOND TO HOUSTON TO CONROE TO
LIVINGSTON...SCATTERED AMOUNTS NEAR 1 INCH WITH HEAVIER AMOUNTS 1 TO
2 INCHES EAST OF GALVESTON TO HOUSTON TO CLEVELAND LINE.  PRECIP
SHOULD BE ENDING BY 9 PM.  TO TOP THIS OFF WILL BE CONDITIONS VERY
FAVORABLE FOR FOG.  WILL NEED FOGGY ADDED TO ZONES FOR TONIGHT AND
THU MORNING.  FLASH FLOOD WATCH WILL LIKELY BE DROPPED BY 9 PM AS
WELL DUE TO BEST LIFT MOVING EAST OF THE AREA.   THEN COMES THE
TRICKY PART OF THE FORECAST.  ETA BRINGS BACK HIGH CAPES WITH ONLY A
WEAK CAP FOR THU AFTERNOON THRU FRIDAY MORNING.  ATTM IT SEEMS THAT
INSUFFICIENT LIFT WILL BE PRESENT TILL FRI AFTERNOON WHEN DAYTIME
HEATING HAS KICKED IN AND WHAT LOOKS TO BE A PREFRONTAL TROF MOVES
THROUGH THE AREA FRI AFTERNOON AHEAD OF THE COLD FRONT.  WILL
CONTINUE THE HIGH POPS FOR TONIGHT...TAPERING OFF THU DURING THE
REPREIVE AND CONTINUING INTO FRIDAY (ALTHOUGH CONFIDENCE IN POPS FOR
FRI IS LOW).  WON'T STRAY FAR FROM MOS FOR TEMPS AFTER TONIGHT.

45

CLL RF/C/E  59/76/61/79 7332
IAH RTF/C/E 63/77/63/79 8333
GLS RTF/W/E 64/72/67/73 8433

Flash Flood Warnings in Texas, 1997Every flash flood warning in 1997

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.