Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 60, NWS Tulsa, OK

May 14, 1986Okfuskee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 14, 1986, 4:48 PM CDT for Okfuskee County, Oklahoma. It was in force for 57 min. 1 report 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, 4:48 PM CDT (21:48 UTC)
Expired: May 14, 1986, 5:45 PM CDT
In force: 57 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Okfuskee County, OK

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

Time	Report	Where	Remark
May 14, 5:30 PM CDT	Thunderstorm Wind 0	Okfuskee, OK

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

Ok Cty/Will Rgrs, OK (KOKC), launched 12:00Z, 9.8 hours before the alert went out and 116 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: 2660 J/kg
Mixed-layer CIN: -36 J/kg
Mixed-layer LCL: 743 m above ground
0-6 km bulk shear: 36 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 147 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 7.8

Open this sounding in Storm Lab

The text

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

000 
TTAAOO KOKC 142148
SVROKC
OKC133-107-142245-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
448 PM CDT WED MAY 14 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL  545 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN CENTRAL OKLAHOMA
          ..NORTHERN SEMINOLE...AND NORTHWEST OKFUSKEE

AT 450 PM RADAR INDICATED A SEVERE THUNDERSTORM 2 MILES NORTH OF
LITTLE MOVING TOWARD THE NORTHEAST AT 35 MPH. PERSONS IN BOLEY ARE IN
THE PATH OF THIS STORM. THE STORM IS CAPABLE OF GOLF BALL SIZE HAIL.
 
A TORNADO WATCH IS ALSO IN EFFECT FOR THE
 WARNED AREA.  REMEMBER,
SEVERE THUNDERSTORMS CAN AND OCCASIONALLY DO PRODUCE TORNADOES
WITH LITTLE OR NO ADVANCE WARNING.  REMAIN CALM BUT BE ALERT TO
RAPIDLY CHANGING WEATHER CONDITIONS.

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, 3:54 PM CDT, 54 minutes before

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

 TIME           EVENT  (CD=CIVIL DEFENSE.  OHP=OKLA. HIGHWAY PATROL)
 1215  PM CDT   GOLFBALL SIZE HAIL REPORTED BY SPOTTERS AND PUBLIC
                IN EASTSIDE OF BARTLESVILLE OKLAHOMA.  WASHINGTON
                COUNTY.
 1228  PM CDT   GOLFBALL SIZE HAIL REPORTED IN EAST SECTIONS OF
                WASHINGTON COUNTY.  REPORT BY HAM SPOTTERS.
 1235  PM CDT   ROTATION SPOTTED IN WALL CLOUD SOUTHEAST OF
                BARTLESVILLE OKLAHOMA.  REPORTED BY POLICE.
 1238  PM CDT   MARBLE SIZE HAIL REPORTED MIDWAY BETWEEN COPEN AND
                WANN OKLAHOMA.  REPORT BY HAM SPOTTERS IN
                WASHINGTON COUNTY.
 1239 PM CDT    1/2 TO ONE HAIL REPORTED BY PUBLIC AND SPOTTERS
 1240 PM CDT    GOLFBALL SIZE HAIL REPORTED BY POLICE AND HAMS IN
                EASTERN PARTS OF BARTLESVILLE OKLAHOMA.  WASHINGTON CO.
 1245 PM CDT    ROTATION IN WALL CLOUD JUST WEST OF NOWATA OKLAHOMA.
                REPORTED BY HAM SPOTTERS.  NOWATA COUNTY.
 1248 PM CDT    SOFTBALL SIZE HAIL JUST EAST OF COPEN OKLAHOMA.
                REPORTED BY HAM SPOTTERS.  WASHINGTON COUNTY.
 1250 PM  CDT   WALL CLOUD INDICATED NORTHEAST OF BARTLESVILLE
                OKLAHOMA.  REPORTED BY SPOTTERS.  WASHINGTON CO.
 1254 PM  CDT   ROTATION IN WALL CLOUD NORTHWEST OF NOWATA OKLA-
                HOMA IN NOWATA COUNTY.  REPORT BY SPOTTERS.
  100 PM  CDT   A LOT OF HAIL DAMAGE REPORTED BY SPOTTERS IN
                THE AREA BETWEEN EASTERN BARTLESVILLE OKLAHOMA
                EXTENDING INTO WESTERN NOWATA COUNTY.  REPORT
                THROUGH HAM NETWORK.  WASHINGTON AND NOWATA CO.
  105 PM  CDT   WALL CLOUD SPOTTED ABOUT 5 TO 7 MILES EAST OF
                BARTLESVILLE, OKLAHOMA.  BY SPOTTERS IN EAST
                WASHINGTON COUNTY.

                ADDITIONAL REPORTS TO FOLLOW SHORTLY.

Local storm report, May 14, 4:26 PM CDT, 22 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.

The office that day

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

Issued	Product	Office	Counties	Lasted
May 14, 12:06 PM CDT	Severe Thunderstorm Warning	TSA	Washington	69 min
May 14, 12:27 PM CDT	Severe Thunderstorm Warning	TSA	Nowata	63 min
May 14, 1:00 PM CDT	Severe Thunderstorm Warning	TSA	Washington	60 min
May 14, 1:24 PM CDT	Severe Thunderstorm Warning	TSA	Nowata	66 min
May 14, 2:10 PM CDT	Tornado Warning	TSA	Nowata	65 min
May 14, 2:16 PM CDT	Tornado Warning	TSA	Washington	59 min
May 14, 5:18 PM CDT	Severe Thunderstorm Warning	TSA	Creek	57 min
May 14, 6:29 PM CDT	Severe Thunderstorm Warning	TSA	Okmulgee	61 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.