Alert archive / Arkansas / Flash Flood Warnings in 1990

Flash Flood Warning 12, NWS Shreveport, LA

March 8, 1990Howard County, Little River County, Sevier County, Arkansas

NWS Shreveport, LA issued this flash flood warning at Mar 8, 1990, 3:49 AM CST for Howard County, Little River County, Sevier County, Arkansas. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Mar 8, 1990, 3:49 AM CST (09:49 UTC)
Expired: Mar 8, 1990, 9:45 AM CST
In force: 6 hr
Issued by: NWS Shreveport, LA
Area: Whole counties

Counties Howard County, AR, Little River County, AR, Sevier 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, 9.8 hours before the alert went out and 180 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: 201 J/kg
Mixed-layer CIN: -102 J/kg
Mixed-layer LCL: 598 m above ground
0-6 km bulk shear: 67 kt
0-1 km storm-relative helicity: 469 m²/s²
0-3 km storm-relative helicity: 562 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 3.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KSHV 080954 COR
FFWSHV
ARC061-081-091-109-133-TXC037-067-081545-

BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE SHREVEPORT LA
349 AM CST THU MAR 8 1990

THE NATIONAL WEATHER SERVICE IN SHREVEPORT HAS ISSUED A
FLASH FLOOD WARNING EFFECTIVE UNTIL  945 AM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS..

IN SOUTHWEST ARKANSAS

   ...HOWARD COUNTY...LITTLE RIVER COUNTY...MILLER COUNTY...PIKE
   COUNTY...SEVIER COUNTY


IN NORTHEAST TEXAS

   ...BOWIE COUNTY...CASS COUNTY
AT 340 AM CST THE NATIONAL WEATHER SERVICE RADAR IN SHREVEPORT SHOWED
A LARGE AREAOF SHOWERS AND THUNDERSTORMS THAT EXTENDED NORTH OF A
LINE FROM WARREN ARKANSAS TO BENTON LOUISIANA TO MARSHALL TEXAS TO
TYLER TEXAS.

MOVEMENT WAS EASTNORTHEAST NEAR 35 MPH...WHILE THE SYSTEM SAGGED
SOUTHEAST NEAR 15 MPH.

THROUGH THE RAIN HAD TAPPERED OFF IN SOME OF THE WARNED AREA RUNOFF
WAS INCOMPLETE. NUMEROUS ROADS WERE CLOSED AND EVACUATIONS WERE
REPORTED.

BE HESPECIALLY 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

Special weather statement, Mar 7, 10:36 PM CST, 5 hours 13 minutes before

OKZ026-TXZ022-023-027-028-032-033-ARZ009-010-011-016-LAZ001-002-003-
004-005-006-080600-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SHREVEPORT LA
1035 PM CST WED MAR 7 1990

...FLASH FLOOD WATCH IN EFFECT FOR EXTREME NORTHEAST TEXAS AND SOUTH ARKANSAS
TONIGHT...

AT 1030 PM WEATHER SERVICE RADAR IN SHREVEPORT SHOWED AN AREA OF SHOWERS
AND THUNDERSTORMS OVER EXTREME NORTHEAST TEXAS..SOUTHEAST OKLAHOMA..AND
SOUTHWEST ARKANSAS NORTH OF A LINE FROM EMORY TEXAS TO ATLANTA TEXAS ON
TO ELDORADO ARKANSAS. THE HEAVIEST RAINFALL WAS OCCURRING NEAR IDABEL
OKLAHOMA...NEAR DEQUEEN AND HORATIO ARKANSAS AND ALSO NEAR MURFREESBORO.
LOW AREA AND STREET FLOODING IS POSSIBLE NEAR DEQUEEN ARKANSAS AND IDABEL
OKLAHOMA...AS WELL AS BETWEEN FULTON AND ANTOINE ARKANSAS. DANGEROUS
LIGHTNING GUSTY WINDS ALONG WITH HEAVY RAIN CAN BE EXPECTED WITH THESE STORMS.

RADAR ALSO SHOWED ANOTHER AREA OF SCATTERED SHOWERS AND A FEW THUNDER-
STORMS OVER NORTHWEST LOUISIANA AND SOUTH ARKNASAS FROM NEAR CONVERSE
LOUISIANA NORTHWARD THROUGHT THE SHREVEPORT AREA TO NEAR MAGNOLIA
ARKANSAS.

THE SHOWERS AND THUNDERSTORMS HAVE BEEN MOVING TO THE NORTHEAST AT
ABOUT 40 MPH.

THE HEAVIEST RAINFALL HAS OCCURRED TODAY OVER NORTHEAST TEXAS AND SOUTH-
WEST ARKANSAS. RAINFALL AMOUNTS ACROSS NORTHEAST TEXAS AND SOUTHWEST
ARKANSAS HAVE MOSTLY BEEN IN THE TWO TO FOUR INCH RANGE WITH A FEW
REPORTS OF NEAR FIVE INCHES.

THE RAINFALL THIS EVENING OVER NORTHEAST TEXAS...SOUTHEAST OKLAHOMA
AND SOUTHWEST ARKANSAS PERSISTS AS SHOWERS AND THUNDERSTORMS CONTINUE
TO DEVELOP AND MOVE ACROSS THE SAME GENERAL AREA. SOME STREAMS AND
SMALL RIVERS WERE RISING AND POSSIBLY CAUSING LOW AREA FLOODING.

MOTORISTS ARE URGED ITO USE CAUTION..DO NOT DRIVE THROUGH FLOODED ROAD
WAYS AS URBAN STREET AND UNDERPASS FLOODING MAY OCCUR WITH THE PASSAGE
OF THE THUNDERSTORMS PRODUCING HEAVY RAINS.

The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 7, 11:41 PM CST	Flash Flood Warning	SHV	Howard, Little River, Sevier	4 hr
Mar 7, 11:41 PM CST	Flash Flood Warning	SHV	Pike	4 hr
Mar 8, 1:47 AM CST	Flash Flood Warning	SHV	Little River	118 min
Mar 8, 2:55 AM CST	Flash Flood Warning	SHV	Miller	65 min
Mar 8, 2:55 AM CST	Severe Thunderstorm Warning	SHV	Miller	65 min
Mar 8, 3:49 AM CST	Flash Flood Warning	SHV	Pike	6 hr
Mar 8, 3:49 AM CST	Flash Flood Warning	SHV	Miller	6 hr
Mar 8, 9:40 AM CST	Flash Flood Warning	SHV	Columbia, Lafayette	2 hr
Mar 8, 9:40 AM CST	Flash Flood Warning	SHV	Miller	2 hr

Nearby

Flash Flood Warnings in Arkansas, 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.