Alert archive / Arkansas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 67, NWS Tulsa, OK

May 14, 1986Crawford County, Sebastian County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at May 14, 1986, 10:02 PM CDT for Crawford County, Sebastian County, Arkansas. It was in force for 58 min.

The area

The counties it named.

The facts

Issued: May 14, 1986, 10:02 PM CDT (03:02 UTC)
Expired: May 14, 1986, 11:00 PM CDT
In force: 58 min
Issued by: NWS Tulsa, OK
Area: Whole counties

Counties Crawford County, AR, Sebastian 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 00:00Z, 3.0 hours before the alert went out and 172 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: 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 150302 RRA
SVRFSM
ARC033-127-131-150400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
1002 PM CDT WED MAY 14 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1100 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

ARK........CRAWFORD...SCOTT AND SEBASTIAN

AT 1000 PM A LINE OF SEVERE THUNDERSTORMS WAS INDICATED BY
RADAR ALONG THE ARKANSAS OKLAHOMA BORDER MOVING EAST AT 30 MPH

HEAVNER OKLAHOMA POLICE ESTIMATED 100 MPH WIND AT 947 PM
WITH TREES..POWER LINES DOWN.

LARGE HAIL AND STRONG SURFACE WINDS WILL OCCUR WITH THIS STORM. IF
YOU OBSERVE ANY LARGE HAIL OR STRONG WINDS PLEASE RELAY YOUR
RhEPORT 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, 4:26 PM CDT, 5 hours 36 minutes before

STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
405  PM CDT WED MAY 14 1986

 TIME           EVENT  (CD=CIVIL DEFENSE.  OHP=OKLA. HIGHWAY PATROL)
  128  PM CDT   POSSIBLE FUNNEL SPOTTED NEAR WANN OKLAHOMA.  REPORT
                BY HAM SPOTTERS.  NOWATA COUNTY.
  144  PM CDT   GOLFBALL SIZE HAIL REPORTED NEAR LENAPAH OKLAHOMA.
                REPORT FROM HAM SPOTTERS.  NOWATA COUNTY.
  200  PM CDT   FUNNEL CLOUD REPORTED BY SPOTTERS DUE SOUTH OF
                WANN OKLAHOMA.  REPORTED HAM SPOTTERS.  NOWATA CO.
  211  PM CDT   HEAVY ROTATION SEEN IN CLOUDS OVER WANN OKLAHOMA.
                REPORT BY SPOTTERS.  NOWATA COUNTY.
  213  PM CDT   TORNADO ON THE GROUND NORTH OF WANN OKLAHOMA.
                REPORTED BY SPOTTERS AND OKLAHOMA HIGHWAY PATROL.
                NOWATA COUNTY.
  215  PM CDT   FUNNEL CLOUD SIGHTED 48 DEGREES FROM INTERSECTION
                OF HIGHWAYS 99 AND 60.  SEEN BY SPOTTERS IN WASH-
                INGTON COUTY.  THIS IS THE WANN STORM.  NOWATA CO.
  223  PM CDT   SHERIFF DEPT. REPORTS SEVERAL POWER POLES AND LINES
                DOWN AROUND WANN OKLAHOMA.  NOWATA COUNTY.

Local storm report, May 14, 8:42 PM CDT, 1 hour 20 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.

Issued	Product	Office	Counties	Lasted
May 14, 8:56 PM CDT	Severe Thunderstorm Warning	TSA	Franklin, Sebastian	64 min
May 14, 10:02 PM CDT	Severe Thunderstorm Warning	TSA	Scott	58 min
May 14, 10:56 PM CDT	Severe Thunderstorm Warning	TSA	Franklin, Johnson, Logan, Madison	64 min
May 15, 7:16 AM CDT	Severe Thunderstorm Warning	TSA	Washington	59 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.