Alert archive / Louisiana / Flash Flood Warnings in 1990

Flash Flood Warning 27, NWS Shreveport, LA

May 3, 1990Red River Parish, Louisiana

NWS Shreveport, LA issued this flash flood warning at May 3, 1990, 4:16 PM CDT for Red River Parish, Louisiana. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
May 3, 1990, 4:16 PM CDT (21:16 UTC)
Expired
May 3, 1990, 7:15 PM CDT
In force
3 hr
Issued by
NWS Shreveport, LA
Area
Whole counties

County Red River Parish, LA

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, 9.3 hours before the alert went out and 122 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 1990-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 200 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 1990-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 129 square meters per square second.1939587897Sfc1 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
200 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
702 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
129 m²/s²
0-3 km storm-relative helicity
242 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSHV 032119
FFWSHV
LAC013-031-081-119-TXC419-040015-
 
BULLETIN - EBS ACTIVATION REQUESTED
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
416 PM CDT THU MAY 3 1990
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
SEVERE THUNDERSTORM AND FLASH FLOOD WARNING
EFFECTIVE UNTIL  715 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS..
 
IN NORTHWEST LOUISIANA
 
   ...BIENVILLE PARISH...DESOTO PARISH...RED RIVER PARISH
   ...WEBSTER PARISH
 
 
IN NORTHEAST TEXAS
 
   ...SHELBY COUNTY
 
AT 410 PM CDT WEATHER SERVICE RADAR INDICATED SEVERE THUNDESTORMS
OVER NORTHWEST LOUISIANA AND EAST TEXAS IN A WIDE BAND FROM NEAR
RINGGOLD AND SHREVEPORT LOUISIANA SOUTHWEST INTO EAST TEXAS TO
NEAR TENAHA AND CENTER TEXAS. THE STORMS WERE MOVING TO THE
NORTHEAST AT 35 MPH.
 
THE SEVERE THUNDERSTORMS WERE WITHIN A BAND OF SHOWERS AND THUNDER-
STORMS THAT WERE PRODUCING VERY HEAVY RAINS FROM NEAR ELDORADO
ARKANSAS SOUTHWEST ACROSS NORTHWEST LOUISIANA AND INTO EAST TEXAS
TO NEAR NACOGDOCHES AND LUFKIN.  THE SHOWERS AND THUNDERSTORMS
WERE MOVING TO THE NORTHEAST AT 35 MPH.
 
THE HEAVY RAINS HAVE PRODUCED LOW AREA FLOODING IN PARTS OF SHELBY
COUNTY AND SOUTHEAST PANOLA COUNTY TEXAS AND IN PARTS OF DESOTO
AND SOUTHERN SECTIONS OF CADDO AND BOSSIER PARISHES.
 
...SEVERE THUNDERSTORM WARNING REMAINED IN EFFECT UNTIL 645 PM FOR
CADDO AND BOSSIER PARISHES...
 
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.  REMEMBER
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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 3, 2:14 PM CDT, 2 hours 2 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002-
003-004-005-006-032100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
210 PM CDT THU MAY 3 1990

...A FLASH FLOOD WATCH IS IN EFFECT THIS AFTERNOON FOR NORTHEAST TEXAS
   SOUTHWEST ARKANSAS AND SOUTHEAST OKLAHOMA...
...A FLASH FLOOD WATCH HAS ALSO BEEN ISSUED FOR NORTHWEST LOUISIANA
   FOR THE REMAINDER OF THIS AFTERNOON AND TONIGHT...

AT 200 PM CDT..NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT INDICATED
A THUNDERSTORM PODUCING VERY HEAVY RAINFALL MOVING INTO SOUTHEAST RUSK
AND WESTERN SHELBY COUNTIES OF EAST TEXAS.  THIS THUNDERSTORM WAS 15
MILES WEST OF CENTER TEXAS.  THE THUNDERSTORM IS ALSO CAPABLE OF
PRODUCING STRONG GUSTY WINDS...SMALL HAIL AND DANGEROUS LIGHTNING.
MOVEMENT WAS NORTHEAST AT 25 TO 30 MILES AN HOUR.

THIS THUNDERSTORM WAS PART OF A LARGER AREA OF RAIN AND THUNDERSTORMS
THAT STRETCHED FROM MENA AND FORDYCE ARKANSAS SOUTHWEST TO SHREVEPORT
9ND TYLER TO LUFKIN.  THE AREA OF RAINFALL WAS MOVING EAST AT 10 TO
15 MILES AN HOUR.

PERSONS LIVING IN LOW LYING OR FLOOD PRONE AREAS OR NEAR LAKES..RIVERS
AND STREAMS THAT ARE AT HIGHS LEVELS OR FORECAST TO REACH HIGH LEVELS..
SHOULD) BE PREPARED TO MOVE TO HIGHER GROUND IF HEAVY RAINS OCCUR OR
A WARNING IS ISSUED FOR YOUR AREA.

STAY TUNED TO TV..RADIO AND NOAA WEATHER RADIO FOR THE LATEST WEATHER
INFORMATION.

The office that day

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

IssuedProductOfficeCountiesLasted
May 3, 3:11 PM CDTFlash Flood WarningSHVDe Soto64 min
May 3, 3:11 PM CDTSevere Thunderstorm WarningSHVDe Soto64 min
May 3, 3:36 PM CDTFlash Flood WarningSHVBossier, Caddo3 hr
May 3, 3:36 PM CDTSevere Thunderstorm WarningSHVBossier, Caddo3 hr
May 3, 4:16 PM CDTFlash Flood WarningSHVBienville, Webster3 hr
May 3, 4:16 PM CDTFlash Flood WarningSHVDe Soto3 hr
May 3, 4:16 PM CDTSevere Thunderstorm WarningSHVDe Soto, Red River3 hr
May 3, 4:16 PM CDTSevere Thunderstorm WarningSHVBienville, Webster3 hr

Nearby

Flash Flood Warnings in Louisiana, 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.