Alert archive / Texas / Flash Flood Warnings in 1990

Flash Flood Warning 65, NWS Shreveport, LA

May 31, 1990Gregg County, Harrison County, Texas

NWS Shreveport, LA issued this flash flood warning at May 31, 1990, 1:45 PM CDT for Gregg County, Harrison County, Texas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 31, 1990, 1:45 PM CDT (18:45 UTC)
Expired
May 31, 1990, 5:00 PM CDT
In force
3 hr
Issued by
NWS Shreveport, LA
Area
Whole counties

Counties Gregg County, TX, Harrison County, TX

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Longview/Gregg, TX (KGGG), launched 12:00Z, 6.8 hours before the alert went out and 18 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Longview/Gregg, TX at 12:00Z on 1990-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2910 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Longview/Gregg, TX at 12:00Z on 1990-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
2910 J/kg
Mixed-layer CIN
-21 J/kg
Mixed-layer LCL
618 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KSHV 311859
FFWSHV
TXC183-203-LAC065-041-021-107-312200-

BULLETIN...EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
145 PM CDT THU MAY 31 1990

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE
UNTIL 500 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES/PARISHES IN

NORHTEAST LOUISIANA... MADISON..FRANKLIN..TENSAS..CALDWELL

NORTHEAST TEXAS... GREGG...HARRISON

HEAVY RAINS CONTINUE IN PARTS OF MADISON PARISH AND GREGG AND HARRISON
COUNTIES AND FLOODING WILL CONTINUE. FLOODING WILL AFFECT SECONDARY ROADS
ALONG WITH CONSIDERABLE URBAN STREET AND UNDERPASS FLOODING.

FLASH FLOOD WARNINGS REMAIN IN EFFECT FOR THE FOLLOWING PARISHES AND
COUNTIES: IN NORTH LOUISIANA..OUACHITA..NORTHERN SABINE..SOUTHERN CADDO
SOUTHERN BOSSIER..SOUTHERN WEBSTER..DESOTO..NORTHWEST WINN..BIENVILLE..
NORTHERN NATCHITOCHES..JACKSON..LINCOLN..SOUTHWEST UNION..SOUTHERN
CLAIBORNE..RED RIVER. WARNINGS WILL LIKELY BE EXTENDED LATER THIS
AFTERNOON FOR THESE PARISHES.

IN NORTHEAST TEXAS..SHELBY..RUSK..PANOLA. WARNINGS WILL LIKELY BE
EXTENDED FOR THESE COUNTIES LATER THIS AFTERNOON.

AT 130 PM NATIONAL WEATHER SERVICE RADAR CONTINUED TO INDICATE NUMEROUS
SHOWERS AND SCATTERED STRONG THUNDERSTORMS IN A 60 MILE WIDE AREA FROM
THE MISSISSIPPI RIVER NEAR TALLULAH WESTWARD ALONG AND GENERALLY SOUTH OF
INTERSTATE 20 ACROSS NORTHWEST LOUISIANA AND INTO NORTHEAST TEXAS.

RAINFALL AMOUNTS OF 3 TO 4 INCHES HAVE BEEN COMMON IN THIS AREA THIS
MORNING. ALSO RAINFALL AMOUNTS OF 2 TO 4 INCHES FELL ACROSS THE SOUTHERN
PARTS OF NORTHEAST TEXAS AND NORTHWEST LOUISIANA WEDNESDAY NIGHT WITH
ISOLATED AMOUNTS OF UP TO 6 INCHES. THE COMBINATION OF THESE RAINFALLS
AND HIGH STAGES ON MAJOR STREAMS IN THE AREA HAVE OR WILL CAUSE EXTENSIVE
LOW LAND FLOODING AND NUMEROUS ROAD CLOSURES ARE LIKELY. MOTORISTS ARE
ADVISED TO AVOID DRIVING THROUGH FLOODED ROADWAYS. ROADWAYS WILL REMAIN
FLOODED LONG AFTER THE RAIN ENDS AND STORM RAINFALL TOTALS FROM WEDNESDAY
EVENING THROUGH THIS EVENING WILL RANGE FROM 4 TO 10 INCHES FOR THE
WARNED AREA.

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, May 31, 8:07 AM CDT, 5 hours 38 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002-
003-004-005-006-311400-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
805 AM CDT THU MAY 31 1990

...SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS CONTINUED TO LINGER
OVER PARTS OF EAST TEXAS..SOUTHERN ARKANSAS AND NORTH LOUISIANA..WITH
REDEVELOPMENT OVER EAST TEXAS...

AT 800 AM CDT THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED A
30 MILE WIDE AREA OF SCATTERED SHOWERS AND ISOLATED THUNDERSTORMS THAT
EXTENDED FROM NEAR CROSSETT ARKANSAS ACROSS THE LOUISIANA/ARKANSAS
BORDER TO SOUTH OF CANFIELD ARKANSAS. THUNDERSTORMS THAT WERE PRODUCING
GUSTY WINDS...HEAVY RAINS AND PEA SIZE HAIL WERE LOCATED WEST OF
EL DORADO ARKANSAS AND AT SHONGALOO LOUISIANA.

SCATTERED SHOWERS AND THUNDERSTORMS WERE ALSO NOTED IN A 35 MILE WIDE
AREA THAT EXTENDED FROM NEAR VICKSBURG MISSISSIPPI TO NEAR MONROE
LOUISIANA. A THUNDERSTORM THAT WAS PRODUCING HEAVY RAINS..GUSTY WINDS
WINDS AND PEA SIZE HAIL WAS NOTED EAST OF MONROE LOUISIANA.

MOVEMENT WAS EAST AT 35 TO 40 MILES AN HOUR.

ANOTHER AREA OF SCATTERED SHOWERS AND THUNDERSTORMS...ABOUT 40 MILES
WIDE...EXTENDED FROM NEAR ROBELINE LOUISIANA ACROSS TIMPSON TEXAS TO
NORTHWEST OF TYLER TEXAS. WITHIN THIS AREA THUNDERSTORMS THAT WERE
PRODUCING GUSTY WINDS...PEA SIZE HAIL AND HEAVY RAINS WERE LOCATED
NORTH OF KILGORE TEXAS AND 8 MILES NORTHWEST OF OVERTON TEXAS.
MOVEMENT OF THIS AREA WAS EAST NORTHEAST NEAR 25 MILES AN HOUR.

SCATTERED SHOWERS AND THUNDERSTORMS WILL LINGER OVER THE AREA THIS
MORNING WITH SOME REDEVELOPMENT OVER EAST TEXAS. THE SHOWERS AND
THUNDERSTORMS WILL BECOME MORE NUMEROUS AND LOCALLY HEAVY THIS
AFTERNOON AND EARLY TONIGHT. LOCALLY HEAVY RAINS ARE AGAIN EXPECTED.

A FLASH FLOOD WATCH REMAINED IN EFFECT FOR NORTHWEST LOUISIANA TODAY.

The office that day

Everything else NWS Shreveport, LA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 30, 7:09 PM CDTTornado WarningSHVPanola, Rusk66 min
May 30, 8:07 PM CDTFlash Flood WarningSHVPanola2 hr
May 30, 8:07 PM CDTFlash Flood WarningSHVHarrison, Marion, Rusk2 hr
May 30, 8:07 PM CDTTornado WarningSHVHarrison, Marion, Panola, Rusk96 min
May 30, 9:56 PM CDTFlash Flood WarningSHVGregg, Harrison, Rusk4 hr
May 30, 9:56 PM CDTFlash Flood WarningSHVMarion4 hr
May 30, 9:56 PM CDTFlash Flood WarningSHVPanola4 hr
May 31, 1:11 AM CDTSevere Thunderstorm WarningSHVPanola64 min
May 31, 11:15 AM CDTFlash Flood WarningSHVPanola, Rusk, Shelby4 hr
May 31, 3:00 PM CDTFlash Flood WarningSHVHarrison, Panola, Rusk, Shelby4 hr
May 31, 3:00 PM CDTFlash Flood WarningSHVGregg4 hr

Nearby

Flash Flood Warnings in Texas, 1990Every flash flood warning in 1990

Sources

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.