Alert archive / Arkansas / Flash Flood Warnings in 1986

Flash Flood Warning 2, NWS Shreveport, LA

April 4, 1986Howard County, Arkansas

NWS Shreveport, LA issued this flash flood warning at Apr 4, 1986, 12:25 AM CST for Howard County, Arkansas. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Apr 4, 1986, 12:25 AM CST (06:25 UTC)
Expired
Apr 4, 1986, 3:30 AM CST
In force
3 hr
Issued by
NWS Shreveport, LA
Area
Whole counties

County Howard County, AR

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, 6.4 hours before the alert went out and 201 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 00:00Z on 1986-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 895 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 00:00Z on 1986-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 123 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
895 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
875 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
123 m²/s²
0-3 km storm-relative helicity
141 m²/s²
Significant tornado parameter
0.9
Supercell composite
5.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSHV 040639
FFWSHV
TXC037-ARC081-133-061-OKC089-040930-

BULLETIN...EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
1225 AM CST FRI APR 4 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING EFFECTIVE
UNTIL 330 AM CST    FOR PEOPLE IN THE FOLLOWING COUNTIES IN

NORTHEAST TEXAS...NORTHWEST BOWIE

SOUTHEAST OKLAHOMA...EXTREME SOUTHEAST MCCURTAIN

SOUTHWEST ARKANSAS...LITTLE RIVER...SOUTHERN SEVIER AND SOUTHERN HOWARD

AT 1225 AM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT WAS SHW
ING A BAND OF STRONG THUNDERSTORMS FROM THE GLEENWOOD/MURFREESBORO AREA
OF SOUTHWEST ARKANSAS ACROSS THE NASHVILLE AREA TO FORMEN...ACROSS THE
SOUTHEAST TIP OF OKLAHOMA...SOUTHEAST OF IDABEL...TO NORTHWEST OF DEKALB
TEXAS TO SOUTHEAST OF CLARKSVILLE.

VERY STRONG THUNDERSTORMS PRODUCING HEAVY RAINFALL...STRONG WINDS AND
SPOTTY SMALL HAIL CONTINUED TO MOVE ACROSS THE SAME GENERAL AREA WITH
IN THE BAND.

INDICATIONS ARE THAT FROM TWO TO THREE INCHES OF RAIN HAS FALLEN OVER
THE PAST THREE HOURS...AND STORM TOTALS MAY EXCEED FIVE INCHES AND
LOW AREA FLOODING WILL DEVELOP...AFFECTING ROADWAYS.

MOTORIEST ARE URGED NOT TO DRIVE THROUGH FLOODED ROADWAYS.

A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR THE NORTHWEST HALF
OF THE ARKLATEX INTO SOUTHEAST OKLAHOMA...A FEW STORMS MAY YET PRODUCE
SPOTTY LARGE HAIL AND HIGH WINDS.

ELSEWHERE...ISOLATED SHOWERS WERE OCCURRING OVER SOUTHCENTRAL ARKANSAS
FROM THE MAGNOLIA AREA INTO NORTHWEST LOUISIANA NORTHEAST OF THE
SHREVEPORT 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, Apr 3, 6:31 PM CST, 5 hours 54 minutes before
NEWSPSSHV
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
630 PM CST THU APR 3 1986

...STRONG AND POSSIBLE SEVERE STORMS EXPECTED TO AFFECT THE ARKLATEX
   TONIGHT...

STRONG THUNDERSTOMS ARE ONGOING AT 630 PM FROM SOUTHCENTRAL OKLAHOMA
SOUTHWARD ACROSS NORTHCENTRAL TEXAS..ALSO STRONG THUNDERSTORMS HAVE
DEVELOPED OVER THE WESTERN SECTIONS OF NORTHEAST TEXAS. WARNINGS ARE
IN EFFECT FOR A FEW COUNTIES IN NORTHCENTRAL AND NORTHEAST TEXAS...
REFER TO BULLETINS ISSUED BY THE NATIONAL WEATHER FORECAST OFFICE IN
FORT WORTH.

AT 630 PM CST...VERY STRONG THUNDERSTORMS WERE INDICATED BY WEATHER
SERVICE RADARS FROM EAST OF ARDMORE OKLAHOMA SOUTHWARD TO NEAR FORT
WORTH..AND FROM SOUTH OF GREENVILLE TEXAS TTO 30 MILES WEST OF THE
TYLER AREA TO 30 MILES OF LUFKIN.

THE STORMS WERE MOVING TOWARD THE NORTHEAST.

ADDITONAL STRONG THUNDERSTORM DEVELOPMENT WILL TAKE PLACE THIS EVENING
AND AFFECT EXTREME SOUTHEAST OKLAHOMA..AND THE REMAINDER OF NORTHEAST
TEXAS AND FINALLY SOUTHWEST ARKANSAS AND NORTHWEST LOUISIANA LATER
TONIGHT.
Special weather statement, Apr 3, 11:19 PM CST, 1 hour 6 minutes before
NEWSPSSHV
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1110 PM CST THU APR 4 1986

...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT FOR THE NORTHWEST
HALF OF THE ARKLATEX INTO THE SOUTHEAST CORNER OF OKLAHOMA...

THE WEATHER SERVICE RADAR IN SHREVEPORT CONTINUES TO INDICATE
A FEW VERY HEAVY THUNDERSTORMS ACROSS THE NORTHWEST SECTIONS OF
THE ARKLATEX.  THE STRONGEST STORMS WERE ALONG THE ARKANSAS TEXAS BORDER
NORTH OF NEW BOSTON TEXAS AND 15 MILES NORTH-NORTHEAST OF MT.
PLEASNAT TEXAS.  THE STORM NORTH OF NEW BOSTON CAUSED PEA SIZED HAIL
AT DEKALB TEXAS AT 1045 PM.

THESE STORMS WERE PART OF A LARGE AREA OF SHOWERS AND STRONG THUNDER-
STORMS THAT EXTENDED FROM MT. IDA...MURFREESBORRO AND TEXARKANA ARKANSAS
SOUTHWEST ACROSS THE SOUTHEAST CORNER OF OKLAHOMA THROUGH THE PARIS
TEXAS AREA TO NEAR GREENVILLE TEXAS.

THE OVERALL TREND OF STORM STRENGTH HAS SHOWN A DECREASE THE
PAST COUPLE OF HOURS BUT OTHER VERY STRONGS STORMS WILL MOVE INTO
THE EASTERN SECTIONS OF NORTHEAST TEXAS AND THE SOUTHEAST CORNER
OF OKLAHOMA INTO SOUTHWEST ARKANSAS LATER TONIGHT.

A FLASH FLOOD WATCH IS IN EFFECT FOR EXTREME NORTHEAST TEXAS.
SHOWERS AND HEAVY THUNDERSTORMS MOVING ACROSS THE SAME GENERAL
AREAS IN NORTHEAST TEXAS  AND THE SOUTHEAST CORNER OF OKLAHOMA
INTO SOUTHWEST ARKANSAS WILL RESULT IN VERY HEAVY RAINFALL TONIGHT.

THE STORMS WERE MOVING NORTHEAST 25 MPH.

ALSO INDICATE WAS A 15 MILE WIDE BAND OF SHOWES AND HEAVY THUNDER-
STORMS THAT EXTENDED FROM THE TEXAS BORDER SOUTHWEST OF SHREVEPORT
ACROSS CARTHAGE TEXAS TO 25 MILES NORTH OF NACOGDOCHES.
Special weather statement, Apr 4, 12:15 AM CST, 10 minutes before
NEWSPSSHV
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1210 AM CST FRI APR 4 1986

...A SEVERE THUNDERSTORM WATCH CONTINUES IN EFFECT ACROSS THE NORTH-
WEST HALF OF THE ARKLATEX INTO THE SOUTHEAST CORNER OF OKLAHOMA...

...A FLASH FLOOD WATCH IS IN EFFECT FOR EXTREME NORTHEAST TEXAS...

VERY STRONG THUNDEERSTORMS CONTINUE TO MOVE NORTHEAST THROUGH NORTHEAST
TEXAS ACROSS THE SOUTHEAST CORNER OF OKLAHOMA INTO SOUTHWEST ARKANSAS.

AT 1205 AM THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT INDICATED
SCATTERED VERY STRONG THUNDERSTORMS FROM SOUTHWEST OF DE QUEEN ARKANSAS
SOUTHWEST TO EAST OF IDABEL OKLAHOMA TO NEAR CLARKSVILLE TEXAS. THE
HEAVIEST STORMS WERE EAST OF IDABEL OKLAHOMA AND NEAR CLARKSVILLE
TEXAS.  THESE VERY STRONG STORMS WHICH WERE MOVING NORTHEAST 35 MPH
WILL LIKELY CAUSE STRONG TO HIGH WIND GUSTS AND HAIL AS THEY MOVE
ACROSS THE SOUTHERN SECTIONS OF
MC CURTAIN COUNTY OKLAHOMA INTO NORHTRERN SECTIONS SEVIER...LITTLE
RIVER AND HOWARD COUNTIES IN ARKANSAS OVER THE NEXT HOUR.

HEAVY RAINS OF 2 TO 4 INCHES HAS OCCURRED ACROSS NORTHERN SECTIONS
OF BOWIE COUNTY TEXAS INTO SOUTHERN SECTIONS OF MC CURTAIN COUNTY
OKLAHOMA AND NORTHEAST INTO SOUTHWEST ARKANSAS IN THE AREA BETWEEN
TEXARKANA AND MENA.  INTENSE THUNDERSTORMS WILL CONTINUE TO TRACK
NORTHEAST ACROSS THIS SAME GENERAL AREA TONIGHT RESULTING IN
VERY HEAVY RAINS.

THESE STRONG STORMS WERE PART OF A 40 TO 50 MILE WIDE AREA OF
SHOWERS AND THUNDERSTORMS THAT EXTENDED FROM CLARKSVILLE AND PARIS
TEXAS NORTHEAST ACROSS THE SOUTHEAST CORNER OF OKLAHOMA TO
BETWEEN ASHDOWN AND MENA ARKANSAS EAST TO MURFREESBORRO...HOPE AND
LEWISVILLE ARKANSAS.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 4, 12:25 AM CSTFlash Flood WarningSHVLittle River, Sevier3 hr
Apr 4, 4:30 AM CSTSevere Thunderstorm WarningSHVHoward, Sevier60 min
Apr 4, 4:30 AM CSTSevere Thunderstorm WarningSHVPike60 min
Apr 4, 4:20 PM CSTSevere Thunderstorm WarningSHVPike55 min
Apr 4, 4:45 PM CSTSevere Thunderstorm WarningSHVLittle River65 min
Apr 4, 4:48 PM CSTTornado WarningSHVPike32 min
Apr 4, 4:54 PM CSTTornado WarningSHVLittle River61 min
Apr 4, 5:50 PM CSTTornado WarningSHVHoward, Little River, Sevier70 min

Nearby

Flash Flood Warnings in Arkansas, 1986Every flash flood warning in 1986

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.