Alert archive / Arkansas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 23, NWS Tulsa, OK

April 4, 1986Scott County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 4, 1986, 4:59 PM CST for Scott County, Arkansas. It was in force for 61 min.

The area

The counties it named.

The facts

Issued: Apr 4, 1986, 4:59 PM CST (22:59 UTC)
Expired: Apr 4, 1986, 6:00 PM CST
In force: 61 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Scott 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, 11.0 hours before the alert went out and 228 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1334 m above ground
0-6 km bulk shear: 60 kt
0-1 km storm-relative helicity: 144 m²/s²
0-3 km storm-relative helicity: 138 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 042259
SVRFSM
ARC127-050000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
459 PM CST FRI APR 4 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 600 PM CST FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

ARKANSAS...SCOTT

AT 455 PM A SEVERE THUNDERSTORM WAS INDICATED BY RADAR 10 MILE
 WEST OF WALDRON ARKANSAS MOVING TOWARD THE EAST 25 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.

What forecasters said that day

The local office's own words before this severe thunderstorm 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, Apr 4, 3:50 PM CST, 1 hour 9 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
345  PM CST FRI APR 4  1986

 TIME           EVENT  (CD=CIVIL DEFENSE.  OHP=OKLA. HIGHWAY PATROL)
 1107  AM CST   CIVIL DEFENSE IN MCALESTER OKLAHOMA REPORTED MARBLE
                SIZE HAIL AND STRONG WINDS AT KIOWA OKLAHOMA.

 1154  AM CST   MARBLE SIZE HAIL AND VERY HEAVY RAINFALL AT KIOWA
                OKLAHOMA.  REPORTED FROM C.D.

  228  PM CST   SMALL SIZE HAIL AND VERY HEAVY RAIN AT RED OAK
                OKLAHOMA IN LATIMER COUNTY.  REPORT FROM THE SO.

  325  PM CST   FLOODING AND HIGH WATER ACROSS HIGHWAY 270 BETWEEN
                RED OAK AND WILBURTON OKLAHOMA...IN LATIMER COUNTY.
                REPORT FROM LATIMER S.O.

  330  PM CST   STREET FLOODING AND HIGH WATER REPORTED IN HARTSHORNE
                OKLAHOMA IN PITTSBURG COUNTY.  REPORT FROM POLICE.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 3, 10:23 PM CST	Severe Thunderstorm Warning	TSA	Crawford, Sebastian	67 min
Apr 4, 11:21 AM CST	Severe Thunderstorm Warning	TSA	Benton, Washington	69 min

Nearby

Severe Thunderstorm Warnings in Arkansas, 1986 Every 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.