Alert archive / Arkansas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 103, NWS Tulsa, OK

August 2, 1986Benton County, Washington County, Arkansas

NWS Tulsa, OK issued this severe thunderstorm warning at Aug 2, 1986, 1:42 AM CDT for Benton County, Washington County, Arkansas. It was in force for 58 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
Aug 2, 1986, 1:42 AM CDT (06:42 UTC)
Expired
Aug 2, 1986, 2:40 AM CDT
In force
58 min
Issued by
NWS Tulsa, OK
Area
Whole counties

Counties Benton County, AR, Washington 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
Aug 2, 2:00 AM CDTThunderstorm Wind 0Benton, AR
Aug 2, 2:30 AM CDTThunderstorm Wind 0Washington, 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, 6.7 hours before the alert went out and 91 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 1986-08-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 542 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 1986-08-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 56 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
542 J/kg
Mixed-layer CIN
-122 J/kg
Mixed-layer LCL
2282 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
56 m²/s²
0-3 km storm-relative helicity
130 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.8

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KFSM 020642 RRA
SVRFSM
ARC007-143-OKC079-135-020740-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE FORT SMITH AR
142 AM CDT SAT AUG 2 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 240 AM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES OF

ARK........BENTON AND WASHINGTON
OKLAHOMA...LEFLORE AND SEQUOYAH

AT 135 AM  THE FORT SMITH RADAR INDICATED A LINE OF SEVERE
THUNDERSTORM EXTENDING FROM MONETT MISSOURI TO WILBURTON
OKLAHOMA...MOVING TO THE SOUTHEAST AROUND 40 MPH.

DANGEROUS LIGHTNING..LARGE HAIL AND STRONG AND POTENTIALLY DAMAGING
WINDS ARE LIKELY WITH THIS STORM. GO TO A SAFE PLACE IMMEDIATELY.

IF YOU OSBSERVE ANY LARGE HAIL OR STRONG WINDS PLEASE RELAY YOUR
REPORT TO THE NEAREST LAW ENFORCEMENT AGENCY.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO OR TELEVISION
STATIONS FOR MORE INFORMATION.

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, Aug 1, 8:01 PM CDT, 5 hours 41 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
800  PM CDT FRI AUG 1 1986

TIME/CDT COUNTY      EVENT  (CD=CIVIL DEFENSE  OHP=OK HIGHWAY PAT'L)
610  PM  TULSA       3 INCHE HAIL REPORTED BY SEVERE WEATHER SPOTTER
                     ON EAST ADMIRAL AVE  IN SOUTHEAST TULSA, OK

615  PM  WAGONER     BASE BALL SIZE REPORTED JUST EAST NORTHEAST
                     OF BROKEN ARROW, OKLA. CAR WINDOWS BROKEN.
                     REPORTED BY TULSA FSS
Special weather statement, Aug 2, 12:04 AM CDT, 1 hour 38 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1150 PM CDT FRI AUG 1 1986

AT 1155 PM CDT TULSA WEATHER RADAR INDICATED HEAVY TO VERY HEAVY
THUNDERSTORMS MOVING OVER CREEK AND TULSA COUNTIES.`
GUSTY WINDS 40 TO 50 MPH, VERY HEAVY RAIN AND POSSIBLE HAIL
CAN BE EXPECTED WITH THESE THUNDERSTORMS AS THEY MOVE SOUTHEAST
AT 40 MPH OVER NORTHEAST OKLAHOMA DURING THE NEXT 2 T0 3 HOURS.

 .
Local storm report, Aug 2, 1:42 AM CDT, 0 minutes before
STORM REPORT
NATIONAL WEATHER SERVICE TULSA OK
130  AM CDT SAT AUG 2 1986

TIME/CDT COUNTY      EVENT  (CD=CIVIL DEFENSE  OHP=OK HIGHWAY PAT'L)
1055 PM  PAWNEE      WIND GUST TO 60 MPH JUST SOUTH OF CLEVELAND, OK
                     SOME POWER LINES DOWN.    CLEVELAND PD

1130 PM  CREEK       HIGH WINDS WITH SEVERAL TREES DOWN IN
                     BRISTOW, OK.  BRISTOW PD

                     BETWEEN 1030 AND 1156 PM THERE WERE SEVERAL
                     REPORTS OF GUSTY WINDS 30 TO 50 MPH, SMALL HAIL
                     AND DAMAGE DUE TO LIGHTING OVER SOUTHERN OSAGE,
                     PAWNEE, CREEK, AND TULSA COUNTIES.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 2, 2:07 AM CDTSevere Thunderstorm WarningTSACrawford, Madison58 min
Aug 2, 2:07 AM CDTSevere Thunderstorm WarningTSASebastian58 min
Aug 2, 2:40 AM CDTSevere Thunderstorm WarningTSALogan, Scott60 min
Aug 2, 2:40 AM CDTSevere Thunderstorm WarningTSAFranklin60 min
Aug 2, 3:02 AM CDTSevere Thunderstorm WarningTSAPolk58 min
Aug 2, 3:02 AM CDTSevere Thunderstorm WarningTSAJohnson58 min
Aug 2, 3:42 AM CDTSevere Thunderstorm WarningTSALogan, Polk, Scott58 min
Aug 2, 3:42 AM CDTSevere Thunderstorm WarningTSAFranklin, Johnson58 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.