Alert archive / Arkansas / Flash Flood Warnings in 1987

Flash Flood Warning 1, NWS Tulsa, OK

June 23, 1987Washington County, Arkansas

NWS Tulsa, OK issued this flash flood warning at Jun 23, 1987, 10:30 AM CDT for Washington County, Arkansas. It was in force for 2 hr.

The area

The counties it named.

The facts

Issued
Jun 23, 1987, 10:30 AM CDT (15:30 UTC)
Expired
Jun 23, 1987, 12:30 PM CDT
In force
2 hr
Issued by
NWS Tulsa, OK
Area
Whole counties

County Washington 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

Springfield, MO (KUMN), launched 12:00Z, 3.5 hours before the alert went out and 109 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, Springfield, MO at 12:00Z on 1987-06-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 86 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 1987-06-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 21 square meters per square second.1939Sfc1 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
86 J/kg
Mixed-layer CIN
-41 J/kg
Mixed-layer LCL
883 m above ground
0-6 km bulk shear
6 kt
0-1 km storm-relative helicity
21 m²/s²
0-3 km storm-relative helicity
50 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSM 231530
FFWFSM
ARC143-231730-
 
BULLETIN - EBS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
1030 AM CDT TUE JUN 23 1987
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A FLASH FLOOD WARNING
EFFECTIVE UNTIL 1230 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTY...
 
IN WEST ARKANSAS
          ...WASHINGTON
 
AT 1030 AM CDT FORT SMITH RADAR SHOWED A LINE OF HEAVY THUNDERSTORMS
ACROSS CENTRAL WASHINGTON COUNTY MOVING SLOWLY EAST...PRODUCING SOME
FLASH FLOODING IN THE FAYETTEVILLE AREA. MORE THAN 3 INCHES HAS BEEN
RECORDED IN THE FAYETTEVILLE AREA.
 
 
A FLASH FLOOD WARNING MEANS THAT FLOODING IS OCCURRING OR IS
IMMINENT.  MOST FLASH FLOOD DEATHS OCCUR IN AUTOMOBILES.  DO NOT
jATTEMPT TO CROSS BRIDGES...DIPS...OR LOW SPOTS IF WATER COVERS
THE ROADWAY.  NEVER TRY TO CROSS A FLOWING STREAM...EVEN A SMALL
ONE...ON FOOT.  TO ESCAPE RISING WATER MOVE UP TO HIGHER GROUND.

The office that day

Everything else NWS Tulsa, OK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 23, 4:11 AM CDTSevere Thunderstorm WarningTSAWashington49 min
Jun 23, 11:26 AM CDTSevere Thunderstorm WarningTSACrawford, Sebastian64 min

Nearby

Flash Flood Warnings in Arkansas, 1987Every flash flood warning in 1987

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.