Alert archive / Arkansas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 39, NWS Tulsa, OK

April 13, 1986Crawford County, Franklin County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 13, 1986, 12:42 PM CST for Crawford County, Franklin County, Arkansas. It was in force for 63 min.

The area

The counties it named.

The facts

Issued
Apr 13, 1986, 12:42 PM CST (18:42 UTC)
Expired
Apr 13, 1986, 1:45 PM CST
In force
63 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Crawford County, AR, Franklin 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, 6.7 hours before the alert went out and 152 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 1986-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Springfield, MO at 12:00Z on 1986-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 100 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1138 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
100 m²/s²
0-3 km storm-relative helicity
104 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 131842
SVRFSM
ARC033-047-083-131945-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
1242 PM CST SUN APR 13 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 145 PM CST FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

ARKANSAS...CRAWFORD...FRANKLIN AND LOGAN

AT 115 AM A SEVERE THUNDERSTORM WAS INDICATED NEAR MT GAYLOR
ARKANSAS M>OVING TOWARD THE SOUTH AT 35 MPH.

LARGE HAIL AND STRONG SURFACE WINDS MAY OCCUR WITH THIS STORM. IF
YOU OBSERVE ANY LARGE HAIL OR STRONG WINDS PLEASE RELAY YOUR
REPORT TO THE NEAREST LAW ENFORCEMENT AGENCY.

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 12:42 PM CSTSevere Thunderstorm WarningTSALogan63 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1986Every severe thunderstorm 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.