Flash Flood Warning 13, NWS Houston/Galveston, TX

Issued

Jan 6, 1998, 4:35 PM CST (22:35 UTC)

Expired

Jan 6, 1998, 7:35 PM CST

In force

3 hr

Issued by

NWS Houston/Galveston, TX

Area

Whole counties

County Harris County, TX

The Houston radar (KHGX), 52 km from the middle of the area, began a volume at 22:35 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 062237
FFWHOU
TXC201-070135-

BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
435 PM CST TUE JAN 6 1998

THE NATIONAL WEATHER SERVICE IN HOUSTON/GALVESTON TX HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 735 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...

IN SOUTHEASTERN TEXAS

   ...HARRIS COUNTY

VERY HEAVY RAIN WILL BE MOVING INTO HARRIS COUNTY FROM THE SOUTH
WITH RAINFALL RATES OF 1-2 INCHES PER HOUR. ANOTHER AREA OF HEAVY
RAIN WAS LOCATED OVER NORTHWEST HARRIS COUNTY AND WILL BE MOVING
SLOWLY TO THE EAST WHILE INDIVIDUAL CELLS WILL MOVE TO THE NORTHEAST.

FLOODING OF LOW LYING AREAS...UNDERPASSES AND FRONTAGE ROADS IS
LIKELY IN ADDITION TO FLOOD PRONE AREAS.

DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE 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.

RESIDENTS OF HARRIS COUNTY SHOULD USE CAUTION WHILE
TRAVELING THIS EVENING...AS SOME SECONDARY ROADS AND LOW-
LYING AREAS MAY BE COVERED BY FLOODWATERS.

NWS Houston/Galveston, TX wrote its last area forecast discussion before this flash flood warning went out at Jan 6, 2:55 PM CST, 1 hour 40 minutes earlier.

SOUTHEAST TEXAS FORECAST DISCUSSION
NATIONAL WEATHER SERVICE HOUSTON/GALVESTON TX
255 PM CST TUE JAN 6 1998

THE RAIN HAS CONTINUED WITH SPOTTY REPORTS OF FLOODING SO FAR BUT
THIS WILL LIKELY WORSEN AS THE HEAVY RAINBAND MOVES FURTHER EAST WITH
THE UPPER FLOW BECOMING PARALLEL TO THE PREFRONTAL TROUGH THIS
EVENING. SECOND ISSUE IS THE LOCATION OF THE FRONT.  IT APPEARS THE
PACIFIC FRONT IS STILL DRAPED ACROSS NORTH TEXAS AND THE PREFRONTAL
TROUGH HAVING MADE HEADWAY THROUGH THE HILL COUNTRY TO CLL.
OBVIOUSLY THE MOISTURE CONVERGENCE IS GOING GANGBUSTERS ALONG THE
FRONT AND A SECOND SURGE IS MOVING ACROSS THE UPPER TEXAS COASTAL
WATERS WITH PW GREATER THAN 1.6...SEE SPENES FOR DETAILS. THE
PREFRONTAL TROUGH HAS A GOOD TEMPERATURE/DWPT DIFFERENCE ACROSS IT
WITH NORTH WINDS OF 4 TO 5 KFT DEEP AT SAT...BUT PRESSURES BEHIND THE
TROUGH NOT VERY HIGH SO DO NOT SEE IT MAKING IT OFF THE COAST BEFORE
8 PM.  UPPER LOW IS CUTOFF AND MOVING SLOWLY EAST BEFORE MAKING THE
TURN NORTHEAST FURTHER SUPPORTING THE NOTION OF THE PRE-FRONTAL BEING
THE FOCUS FOR THE HEAVIEST RAINS AND PERHAPS DEVELOPING A SFC LOW
OVER THE SW ZONES. 15Z RUC KEEPS FRONT WELL INLAND THROUGH 3Z FRONT
SHOULD ACCELERATE TONIGHT AND EXPECT IT TO FOLLOW THE PREFRONTAL
TROUGH OFF THE COAST TONIGHT AFTER MIDNIGHT AND THE FRONT AROUND 4
AM. WINDS OVER THE WATER SHOULD MEET SCA CRITERIA BY SUNRISE.  PRECIP
SHOULD BE ENDING WED MORNING BETWEEN 8 AND 11 AM FOR COAST BUT THE
WRAP AROUND CLOUDS WILL BE HERE THROUGH THURSDAY AFTERNOON WITH A
GRADUAL CLEARING AFTERWORDS.  TEMPS WILL FALL BACK TO MORE SEASONABLE
LEVELS.

...RECOMMED FFA THROUGH WED MORNING
   SVR ALL ZONES TONIGHT
   MENTION OF SVR IN CWF TONIGHT AND WED MORNING.

45

PRELIMS...

CLL T E/E 052 053/040  +30
IAH T E/E 054 056/044  +40
GLS T E/E 061 059/050  +61

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.