Alert archive / Louisiana / Flash Flood Warnings in 1990

Flash Flood Warning 89, NWS Shreveport, LA

June 25, 1990Bossier Parish, Louisiana

NWS Shreveport, LA issued this flash flood warning at Jun 25, 1990, 9:19 PM CDT for Bossier Parish, Louisiana. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued: Jun 25, 1990, 9:19 PM CDT (02:19 UTC)
Expired: Jun 26, 1990, 12:15 AM CDT
In force: 3 hr
Issued by: NWS Shreveport, LA
Area: Whole counties

County Bossier 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 00:00Z, 2.3 hours before the alert went out and 100 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2311 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1538 m above ground
0-6 km bulk shear: 41 kt
0-1 km storm-relative helicity: 14 m²/s²
0-3 km storm-relative helicity: 100 m²/s²
Significant tornado parameter: 0.2
Supercell composite: 3.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSHV 260219
FFWSHV
LAC015-017-TXC183-203-365-401-260515-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
919 PM CDT MON JUN 25 1990
 
THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL 1215 AM CDT
FOR PEOPLE IN THE FOLLOWING LOCATIONS..
 
IN NORTHWEST LOUISIANA
 
   ...SOUTHERN BOSSIER PARISH...SOUTHERN CADDO PARISH
 
 
IN NORTHEAST TEXAS
 
   ...GREGG COUNTY...HARRISON COUNTY...PANOLA COUNTY...RUSK COUNTY
 
AT 915 PM CDT THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT
SHOWED MODERATE TO HEAVY RAINS STILL OCCURRING OVER THE WARNED
AREA. THIS AREA PREVIOUSLY RECEIVED TWO TO FOUR INCHES OF RAIN
WITH SOME SPOTS NEAR FIVE INCHES. ADDITIONAL HEAVY RAINS WILL
CAUSE SIGNIFICANT FLOODING.
 
I-20 IN SHREVEPORT WAS REPORTED CLOSED...FLOODING WAS NOTED
NEAR TAYLORTOWN IN BOSSIER PARISH AND FLOODING WASNOTED NEAR
KARNACK TEXAS.
 
BE ESPECIALLY CAUTIOUS AT NIGHT WHEN IT IS HARDER TO RECOGNIZE
THE DANGERS OF FLOODS AND FLASH FLOODS.  IF FLASH FLOODING IS
OBSERVED...ACT QUICKLY.  MOVE UP TO ESCAPE FLOOD WATERS.  DO
NOT STAY IN AREAS SUBJECT TO FLOODING WHEN WATER BEGINS RISING.

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

Local storm report, Jun 25, 8:09 PM CDT, 1 hour 10 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE SHREVEPORT LA
800 PM CDT MON JUN 25 1990

PRELIMINARY STORM REPORTS FOR MONDAY JUNE 25 1990

TIME CDT   CNTY/PRSH    ST     EVENT/LOCATION/DAMAGE

 235 PM    OUACHITA     LA  .. NICKEL SIZE HAIL 5 MILES WEST OF CALHOUN

 235 PM    UNION        LA .. ONE AND A HALF INCH HAIL WEST OF DOWNS-
                              VILLE.

 240 PM    LINCOLN      LA .. ONE INCH HAIL..HIGH WINDS AND HEAVY RAIN
                              REPORTED 8 MILES NORTHEAST OF CHOUDRANT.

 250 PM    LINCOLN      LA .. NICKEL SIZE HAIL 5 MILES NORTHEAST OF
.                             RUSTON.

 250   PM  OUACHITA     LA .. ONE INCH HAIL..HIGHS WINDS AND HEAVY
                              RAIN REPORTED 5 MILES NORTH OF CALHOUN.

 320   PM  NEVADA       AR .. GOLFBALL SIZE HAIL AT CALE.

 330   PM  NEVADA       AR .. GOLFBALL SIZE HAIL 5 MILES SOUTH OF
                              BLUFF CITY.

 340   PM  COLUMBIA     AR .. GOLFBALL SIZE HAIL 8 MILES EAST OF
                              MAGNOLIA.

 345   PM  UNION        LA .. GOLFBALL SIZE HAIL 8 MILES SOUTHWEST OF
                              FARMERVILLE.

 350   PM  NEVADA       AR .. GOLFBALL SIZE HAIL 3 MILES EAST OF
                              PRESCOTT.

 400   PM  NEVADA       AR .. 3.45 INCHES OF RAIN IN 2 HOURS AT CALE.

 415   PM  COLUMBIA     AR .. GOLFBALL SIZE HAIL IN EBENEEZER.
 .

 420   PM  NEVADA       AR .. GOLFBALL SIZE HAIL IN YOUNG.

 425   PM  LINCOLN      LA .. ONE INCH HAIL 8 MILES WEST OF DUBACH.

 430   PM  WEBSTER      LA .. ONE INCH HAIL IN DUBERLY.

 450   PM  BIENVILLE    LA .. GOLFBALL SIZE HAIL AT PLEASANT HILL.

 445   PM  BIENVILLE    LA .. GOLFBALL SIZE HAIL AND HEAVY RAIN
                              BETWEEN TAYLOR AND GIBSLAND.

 530   PM  SABINE       LA .. ONE INCH HAIL 9 MILES SOUTHWEST OF
                              MANY.

 535   PM  SHELBY       TX .. NICKEL SIZE HAIL IN SHELBY.

 .
 545   PM  BOSSIER      LA .. MARBLE SIZE HAIL AND HEAVY RAIN
                              1.6 MILES NORTH OF PLAIN DEALING.

 545   PM  HOWARD       AR .. WIND DAMAGE TO TREES 5 MILES NORTH
                              OF NASHVILLE.

 554   PM  BOWIE        TX .. NUMEROUS TREES DOWN NEAR WAKE VILLAGE
                              WINDS ESTIMATED TO 70 MPH ALONG WITH
                              GOLFBALL SIZE HAIL.

......MORE STORMS REPORTS WILL FOLLOW.....q

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 25, 7:06 PM CDT	Severe Thunderstorm Warning	SHV	Caddo	69 min
Jun 25, 7:06 PM CDT	Severe Thunderstorm Warning	SHV	De Soto	69 min
Jun 25, 7:06 PM CDT	Severe Thunderstorm Warning	SHV	Bossier	69 min
Jun 25, 9:19 PM CDT	Flash Flood Warning	SHV	Caddo	3 hr

Nearby

Flash Flood Warnings in Louisiana, 1990 Every 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.