Alert archive / Louisiana / Flash Flood Warnings in 1990
Flash Flood Warning 90, NWS Shreveport, LA
NWS Shreveport, LA issued this flash flood warning at Aug 2, 1990, 5:03 PM CDT for Bossier Parish, Caddo Parish, Louisiana. It was in force for 57 min.
The area
The counties it named.
The facts
- Issued
- Aug 2, 1990, 5:03 PM CDT (22:03 UTC)
- Expired
- Aug 2, 1990, 6:00 PM CDT
- In force
- 57 min
- Issued by
- NWS Shreveport, LA
- Area
- Whole counties
Counties Bossier Parish, LA, Caddo 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, 10.1 hours before the alert went out and 86 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.
- Mixed-layer CAPE
- 2193 J/kg
- Mixed-layer CIN
- -42 J/kg
- Mixed-layer LCL
- 762 m above ground
- 0-6 km bulk shear
- 5 kt
- 0-1 km storm-relative helicity
- 7 m²/s²
- 0-3 km storm-relative helicity
- 36 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000
TTAA00 KSHV 022208 COR
FFWSHV
LAC015-017-022300-
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
503 PM CDT THU AUG 2 1990
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 600 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS..
IN NORTHWEST LOUISIANA
...NORTHERN BOSSIER PARISH...NORTHERN CADDO PARISH
SHREVEPORT WEATHER RADAR AT 500 PM SHOWED STRONG THUNDERSTORMS OVER
NORTHERN CADDO AND BOSSIER PARISHES OF NORTHWEST LOUISIANA.
INDICATIONS ARE THAT FROM TWO TO OVER FIVE INCHES OF RAIN HAS FALLEN
IN SOME AREAS.
THESE THUNDERSTORMS ARE PART OF AN AREA OF SHOWERS AND STRONG
THUNDERSTORMS FROM NEAR MT. PLEASANT TEXAS EASTWARD ACROSS THE
BORDER SECTIONS OF ARKANSAS AND LOUISIANA TO NORTH OF MONROE.
LOCALIZED FLOODING OF ROADWAYS AND LOW AREAS WILL OCCUR OVER
PORTIONS OF NORTHERN CADDO AND BOSSIER PARISHIS DUE TO THE VERY
SLOW MOVEVEMENT OF THESE STORMS.
PERSONS A{RE ADVISED TO USE CAUTION AND NOT ATTEMPT TO TRAVERSE
FLOODED ROADWAYS.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, Aug 2, 2:02 PM CDT, 3 hours 1 minute before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-022130- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 200 PM CDT THU AUG 2 1990 SHOWERS AND THUNDERSTORMS DEVELOPING OVER THE ARKLATEX AT 155 PM THE SHREVEPORT WEATHER RADAR SHOWED AN AREA OF SCATTERED SHOWERS AND A FEW STRONG THUNDERSTORMS FROM JUST NORTH OF TEXARKANA AND HOPE ARKANSAS SOUTHWARD INTO NORTHERN LOUISIANA AND PORTIONS OF NORTHEASTERN TEXAS...FROM NORTH OF LONGVIEW AND MARSHALL THROUGH SHREVEPORT ON TO SOUTH OF MONROE AND RUSTON LOUISIANA. ISOLATED SHOWERS AND A FEW THUNDERSTORMS WERE ALSO OVER CENTRAL LOUISIANA FROM SOUTH OF WINNFIELD AND WINNSBORO THROUGH SOUTH OF ALEXANDRIA. MOVEMENT WAS SLOWLY TO THE NORTHEAST. SCATTERED SHOWERS AND A FEW STRONG THUNDERSTORMS WILL AFFECT MUCH OF NORTHEAST TEXAS...SOUTHWEST ARKANSAS AND NORTHERN LOUISIANA THIS AFTER- NOON INTO THIS EVENING. SOME OF THE STRONGER THUNDERSTORMS WILL9 PRODUCE HEAVY RAINFALL...FREQUENT LIGHTNING...STRONG GUSTY WINDS AND POSSIBLE HAIL.
Special weather statement, Aug 2, 4:11 PM CDT, 52 minutes before
OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002- 003-004-005-006-022300- SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE SHREVEPORT LA 410 PM CDT THU AUG 2 1990 SHOWERS AND THUNDERSTORMS CONTINUE OVER THE ARKLATEX AT 405 PM THE SHREVEPORT WEATHER RADAR SHOWED AN AREA OF SHOWERS AND A FEW STRONG THUNDERSTORMS FROM JUST SOUTH OF PARIS TEXAS EXTENDING INTO SOUTHWEST ARKANSAS TO EAST OF ELDORADO AND INTO NORTHWESTERN LOUISIANA TO JUST NORTHWEST OF SHREVEPORT. A STRONG THUNDERSTORM WAS LOCATED FROM JUST EAST OF CADDO LAKE TO JUST SOUTHWEST OF SPRINGHILL LOUISIANA. MOVEMENT WAS TO THE SOUTHEAST NEAR 10 MPH. SHOWERS AND A FEW STRONG THUNDERSTORMS WILL CONTINUE OVER PORTIO@NS OF NORTHEAST TEXAS...SOUTHWEST ARKANSAS...AND NORTHERN LOUISIANA THIS AFTERNOON AND EVENING. SOME OF THE STRONGER THUNDERSTORMS WILL PRODUCE HEAVY RAINFALL...FREQUENT LIGHTNING...AND STRONG GUSTY WINDS.
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.