Alert archive / Arkansas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 79, NWS Tulsa, OK

May 17, 1986Crawford County, Sebastian County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at May 17, 1986, 3:12 AM CDT for Crawford County, Sebastian County, Arkansas. It was in force for 63 min. 3 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 17, 1986, 3:12 AM CDT (08:12 UTC)
Expired
May 17, 1986, 4:15 AM CDT
In force
63 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.

What was reported inside it

TimeReportWhereRemark
May 17, 3:15 AM CDTThunderstorm Wind 60Sebastian, AR
May 17, 3:40 AM CDTThunderstorm Wind 0Sebastian, AR
May 17, 3:45 AM CDTThunderstorm Wind 0Crawford, 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, 8.2 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-pSkew-T log-p diagram, Springfield, MO at 00:00Z on 1986-05-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1582 joules per kilogram.LCLEL10008507005003002001001 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 1986-05-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 3 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
1582 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
1040 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
3 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 170812
SVRFSM
ARC033-131-170915-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
312 AM CDT SAT MAY 17 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 415 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

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

AT 310 AM A SEVERE THUNDERSTORM WAS INDICATED BY RADAR NEAR
MULDROW OKLAHOMA MOVING NORTHEAST AT 50 MPH.

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.

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 17, 2:14 AM CDT, 58 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
208  AM CDT SAT MAY 17 1986

 TIME           EVENT  (CD=CIVIL DEFENSE.  OHP=OKLA. HIGHWAY PATROL)
 1203  AM CDT   60 TO 70 MPH WINDS AT MARAMAC OKLAHOMA.  REPORT
                FROM THE C.D.                       PAWNEE COUNTY.
 1214  AM CDT   BRISTOW C.D. REPORTS ROTATION JUST SOUTHWEST OF
                OF THE CITY.  NO FUNNEL SIGHTED.  CREEK COUNTY.
 1223  AM CDT   50 MPH WINDS REPORTED AT HIGHWAY 99 AND CIMMARRON
                TURNPIKE IN PAWNEE COUNTY.  REPORTED HAM BY SPOTTER.
 1225  AM CDT   70 MPH WINDS REPORTED AT HIGHWAY 99 AND CIMMARRON
                TURNPIKE IN PAWNEE COUNTY.  REPORTED BY HAM SPOTTER.
 1225  AM CDT   60 MPH WINDS REPORTED BY C.D. AT JENNINGS OKLAHOMA.
                PAWNEE COUNTY.
 1237  AM CDT   60 MPH WINDS AT OILTON OKLAHOMA.  REPORT FROM C.D
                CREEK COUNTY.
 1238  AM CDT   CLEVELAND OKLAHOMA REPORTS A TOTAL POWER OUTAGE IN
                THE TOWN.  REPORT FROM C.D. AT BARTLESVILLE.
                PAWNEE COUNTY.
 1238  AM CDT   HALLETTE OKLAHOMA HAS TREES AND LINES DOWN.  REPORT
                CAME THROUGH C.D.  PAWNEE COUNTY.
Local storm report, May 17, 2:54 AM CDT, 18 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
230  AM CDT SAT MAY 17 1986

 TIME           EVENT  (CD=CIVIL DEFENSE.  OHP=OKLA. HIGHWAY PATROL)
 1245  AM CDT   HIGH WINDS ESTIMATED AT 60 MPH OCCURRED AT MANNFORD
                OKLAHOMA.  REPORTED BY POLICE.  CREEK COUNTY.
 1252  AM CDT   PRUE OKLAHOMA REPORTS 50 TO 60 MPH WIND GUST AND
                HEAVY RAIN.  REPORT BY HAM SPOTTERS.  OSAGE COUNTY.
 1254  AM CDT   BARNSDALL OKLAHOMA HAS POWER FAILURE DUE HIGH
                WINDS.  REPORT FROM C.D. IN BARTLESVILLE.  OSAGE CO
 1257  AM CDT   SPOTTERS IN WEST TULSA ON HIGHWAY 64 REPORTS HIGH
                WINDS ESTIMATED AT 60 MPH.  TULSA COUNTY.
 1259  AM CDT   NUMEROUS REPORTS OF TREES AND POWER LINES DOWN IN
                MANY PARTS OF PAWNEE COUNTY.  REPORTS THROUGH C.D.
  103  AM CDT   DOWNTOWN TULSA TO 5 WEST OF CITY REPORTING VERY
                STRONG WINDS.   REPORTED BY HAM SPOTTERS.
  105  AM CDT   WINDS ESTIMATED TO 70 MPH AND POWER OUT IN SAND
                SPRINGS OKLAHOMA IN WESTERN TULSA COUNTY.  REPORT
                BY POLICE AND SPOTTERS.
  108  AM CDT   KIEFER OKLAHOMA REPORTING VERY HIGH WINDS.
                REPORT THROUGH C.D. AND SPOTTERS.  CREEK CO.
 111  AM CDT    HIGH WINDS OF 80 MPH HIT BARNSDALL OKLAHOMA.
                MANY TREE LIMBS BLOWN OFF...UP TO 3 INCHES
                IN DIAMETER.  REPORT BY HAM SPOTTERS.  OSAGE CO.
 119  AM CDT    HIGH WINDS UP TO 60 MPH ESTIMATED BY SPOTTERS
                IN EASTERN PART OF TULSA.  TULSA COUNTY.
 129  AM CDT    STREET FLOODING REPORTED IN SOUTH TULSA.
 150  AM CDT    LARGE TREE BLOWN DOWN IN NORTHWEST TULSA.
                REPORTED BY HAM SPOTTERS.  TULSA COUNTY.
Local storm report, May 17, 3:11 AM CDT, 1 minute before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
305  AM CDT SAT MAY 17 1986

 TIME           EVENT  (CD=CIVIL DEFENSE.  OHP=OKLA. HIGHWAY PATROL)
  205  AM CDT   POLICE AND OHP REPORT SEVERAL MOBILE HOMES OVERTURED
                BY HIGH WINDS SEVERAL MILES EAST OF OKMULGEE OKLA-
                HOMA.  FIRST REPORTS INDICATE ONE PERSON WAS INJURED.
                OKMULGEE COUNTY.  MORE DETAIL AND EXACT LOCATION WILL
                FOLLOW SHORTLY.  TIME OF 205 AM IS WHEN FIRST REPORTS
                RECEIVED BY POLICE.

The office that day

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

IssuedProductOfficeCountiesLasted
May 17, 2:48 AM CDTSevere Thunderstorm WarningTSAFranklin57 min
May 17, 3:51 AM CDTSevere Thunderstorm WarningTSAFranklin, Johnson, Logan69 min
May 17, 3:51 AM CDTSevere Thunderstorm WarningTSAScott69 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.