Flash Flood Warning 67, NWS Shreveport, LA

Issued

Jul 7, 1997, 9:12 AM CDT (14:12 UTC)

Expired

Jul 7, 1997, 1:15 PM CDT

In force

4 hr

Issued by

NWS Shreveport, LA

Area

Whole counties

County Gregg County, TX

The Shreveport radar (KSHV), 92 km from the middle of the area, began a volume at 14:13 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 KSHV 071413
FFWSHV
TXC183-071815-
 
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
912 AM CDT MON JUL 7 1997
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 115 PM CDT
FOR THE FOLLOWING AREA...
 
IN NORTHEAST TEXAS
 
   ...GREGG COUNTY
 
AT 910 AM...THE NATIONAL WEATHER SERVICE DOPPLER RADAR IN SHREVEPORT
CONTINUED TO SHOW A 60 MILE WIDE AREA OF SHOWERS AND THUNDERSTORMS
DEVELOPING AND MOVING OVER THE SAME AREAS ACROSS PARTS OF NORTHEAST
TEXAS.  THIS AREA OF THUNDERSTORMS EXTENDED FROM SHREVEPORT AND
HOMER LOUISIANA THROUGH LONGVIEW...CANTON...TYLER...AND EMORY TEXAS.
 
INDIVIDUAL THUNDERSTORMS WERE MOVING TO THE EAST AT 10 TO 15 MILES
AN HOUR WHILE THE ENTIRE AREA OF THUNDERSTORM CONTINUED TO SHOW
LITTLE MOVEMENT.
 
RADAR AND SATELLITE ESTIMATES THAT UP TO FOUR INCHES OF RAIN HAS
FALLEN ALONG INTERSTATE HIGHWAY 20 FROM NEAR MARSHALL TEXAS THROUGH
LONGVIEW TEXAS.  A NATIONAL WEATHER SERVICE EMPLOYEE IN NORTH
LONGVIEW TEXAS REPORTED 3.90 INCHES OF RAIN AT HIS HOME HAS FALLEN
SINCE 600 AM.  MAJOR URBAN STREET FLOODING WILL LIKELY DEVELOP IN
LONGVIEW WITH SEVERAL LOW AREA WATER CROSSINGS AND POOR DRAINAGE
AREAS LIKELY TO FLOOD.
 
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY.  VEHICLES CAUGHT IN RISING WATER SHOULD BE ABANDONED
IMMEDIATELY.

NWS Shreveport, LA wrote its last area forecast discussion before this flash flood warning went out at Jul 7, 2:15 AM CDT, 6 hours 57 minutes earlier.

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SHREVEPORT LA
215 AM CDT MON JUL 7 1997

CURRENT WATER VAPOR IMAGERY SHOWS S/WV WELL AS DRY AIR MOVES INTO E
TX. IR SAT AND RADAR TRENDS CONT TO SHOW REDEVELOPING CONVECTION ACRS
E TX IN RESPONSE TO THIS S/WV. THIS SHUD CONT INTO THE MRNG HOURS BUT
WUD NOT EXPECT CONVECTION TO BECOME WIDESPREAD OR GET ABV MARGINAL
TSTM LIMITS SINCE THIS AREA WAS STABILIZED SOMEWHAT BY EARLIER
CONVECTION. BASED ON SAT AND RADAR TRENDS NGM APPEARS TO HAVE A GUD
HANDLE ON MAJOR FTRS. BOTH ETA AND AVN APPEAR A BIT SLOW IN MOVG MAIN
S/WV TO THE E AND SE. ONLY PROBLEM WITH THE NGM LOOKS TO BE ITS LACK
OF UVVS LATER TODAY. WITH REMNANTS OF SFC BOUNDARY AND OUTFLOWS ARND
TODAY AND S/WV PROGRESSING E WUD EXPECT REDEVELOMENT OF SHWRS AND
TSTMS THIS AFTN AND EVNG...ESPECIALLY ACRS ERN SECTIONS. DEVELOPMENT
SHUD BE LESS WIDESPREAD ACRS E TX AND SE OK WHERE MID/UPR LVL
SUBSIDENCE IS LIKELY AS S/WV PULLS E. STILL...THERE SHUD BE AT LEAST
ISOLATED ACTIVITY ACRS SRN PORTIONS OF E TX AGN THIS AFTN.

LOOKS LIKE BY TUE ANTICYCLONIC FLOW BECOMES BETTER ESTABLISHED ACRS E
TX AND SE OK. THIS SHUD LIMIT POPS THOSE AREAS. SEA BREEZE LIKELY
TO PUSH INLAND INTO CNTRL PORTIONS OF LA ON TUE AS LOW LVL FLOW
RMNS OUT OF THE S. MORE TYPICAL SUMMER TIME PATTERN APPEARS TO
REESTABLISHING FOR MUCH OF THE WEEK.

WILL COMPROMISE ON POPS...WITH HIR POPS ACRS ERN SECTIONS AND LOWEST
ACRS NW PARTS. WILL ALSO COMPROMISE ON TEMPS AS CLDS SHUD KEEP HIGHS
BLO NRML ACRS AR AND LA.

SHV 88/71/92 421  MLU 87/71/91 532

18

In the hours before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE OFFICE SHREVEPORT LA
810 AM CDT THU JUL 07 1997

TIME(CDT)  .....CITY LOCATION..... STATE  ...EVENT/REMARKS...
           ....COUNTY LOCATION....

0755 AM    HALLSVILLE                TX   FLOODING
07/07/97   HARRISON                       FLOODING REPORTED
                                          ALONG HIGHWAY 450 IN
                                          SEVERAL LOCATIONS FROM
                                          HALLSVILLE TO NEAR
                                          HARLETON ESPECIALLY ALONG
                                          THE LITTLE CYPRESS BAYOU.

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; radar from the NEXRAD Level II archive.