Alert archive / Arkansas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 69, NWS Tulsa, OK

May 14, 19864 counties in Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at May 14, 1986, 10:56 PM CDT for 4 counties in Arkansas. It was in force for 64 min. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
May 14, 1986, 10:56 PM CDT (03:56 UTC)
Expired
May 15, 1986, 12:00 AM CDT
In force
64 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Franklin County, AR, Johnson County, AR, Logan County, AR, Madison County, AR

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

TimeReportWhereRemark
May 14, 11:05 PM CDTThunderstorm Wind 0Logan, AR
May 14, 11:30 PM CDTThunderstorm Wind 0Johnson, AR

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Springfield, MO (KUMN), launched 00:00Z, 3.9 hours before the alert went out and 147 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 00:00Z on 1986-05-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1003 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, Springfield, MO at 00:00Z on 1986-05-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 48 square meters per square second.193958Sfc1 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
1003 J/kg
Mixed-layer CIN
-29 J/kg
Mixed-layer LCL
1217 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
48 m²/s²
0-3 km storm-relative helicity
75 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.2

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSM 150356 RRA
SVRFSM
ARC047-071-083-087-150500-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
1056 PM CDT WED MAY 14 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1200 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

ARK........FRANKLIN...JOHNSON...LOGAN AND MADISON

AT 1053 PM A LINE OF SEVERE THUNDERSTORM WAS INDICATED BY
RADAR FROM NORTH MADISON COUNTY EXTENDING SOUTH ACROSS
FRANKLIN AND LOGAN COUNTY MOVING EAST AT 30 MPH.

BOONVILLE REPORTED ESTIMATED WIND SPEEDS OF 60 TO 65 MPH
AT 1030 PM. THIS LINE OF THUNDERSTORMS HAS BEEN PRODUCING
SEVERE WEATHER AS IT MOVES EAST.

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

ALTHOUGH TORNADOES HAVE NOT BEEN DETECTED WITH THIS STORM..A TORNADO
WATCH REMAINS IN EFFECT. TORNADOES CAN DEVELOP WITHOUT WARNING FROM
SEVERE THUNDERSTORMS.

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, May 14, 8:42 PM CDT, 2 hours 14 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
835  PM CDT WED MAY 14 1986

 TIME           EVENT  (CD=CIVIL DEFENSE.  OHP=OKLA. HIGHWAY PATROL)
  638  PM CDT   ONE HOUSE DAMAGED WITH TREES AND POWER LINES DOWN
                ABOUT 6 MILES NORTHEAST OF OKEMAH OKLAHOMA. REPORT
                FROM OHP AND SHERIFFS OFFICE.  OKFUSKEE COUNTY.
  645  PM CDT   GOLFBALL SIZE HAIL REPORTED AT DEWAR OKLAHOMA.
                STREET AND LOW LAND FLOODING REPORTED AROUND
                HENRYETTE OKLAHOMA.  REPORT FROM C.D.  OKMULGEE CO.
  715  PM CDT   HIGH WINDS AND SOME POWER FAILURES REPORTED IN
                OKMULGEE OKLAHOMA.  EXTENSIVE STREET AND LOW LAND
                FLOODING IN THE CITY.  REPORT FROM C.D.  OKMULGEE CO.
  730  PM CDT   HIGH WINDS DAMAGED A BARN ABOUT 7 MILES EAST OF
                MORRIS OKLAHOMA.  REPORT FROM C.D.  OKMULGEE CO.
  741  PM CDT   POSSIBLE FUNNEL SIGHTED IN WESTERN MUSKOGEE COUNTY.
                SMALbL TREES AND BARN DAMAGED SOUTH PART OF BOYNTON
                OKLAHOMA IN MUSKOGEE COUNTY.  ALSO ONE LARGE TREE
                REPORTED BLOCKING HIGHWAY U.S. 62 SOUTH EDGE OF
                BOYNTON OKLAHOMA.  REPORTED BY OHP.  MUSKOGEE CO.

The office that day

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

IssuedProductOfficeCountiesLasted
May 14, 8:56 PM CDTSevere Thunderstorm WarningTSAFranklin, Sebastian64 min
May 14, 10:02 PM CDTSevere Thunderstorm WarningTSACrawford, Sebastian58 min
May 14, 10:02 PM CDTSevere Thunderstorm WarningTSAScott58 min
May 15, 7:16 AM CDTSevere Thunderstorm WarningTSAWashington59 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.