Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 63, NWS Tulsa, OK

May 14, 1986Muskogee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 14, 1986, 7:12 PM CDT for Muskogee County, Oklahoma. 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 14, 1986, 7:12 PM CDT (00:12 UTC)
Expired: May 14, 1986, 8:15 PM CDT
In force: 63 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Muskogee 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
May 14, 7:30 PM CDT	Thunderstorm Wind 0	Muskogee, OK
May 14, 7:41 PM CDT	Thunderstorm Wind 0	Muskogee, OK
May 14, 7:45 PM CDT	Thunderstorm Wind 0	Muskogee, 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

Springfield, MO (KUMN), launched 00:00Z, 0.2 hours before the alert went out and 201 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 KTUL 150012
SVRTUL
OKC101-150115-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
712 PM CDT WED MAY 14 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 815 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

EAST CENTRAL OKLAHOMA...MUSKOGEE

AT 712  PM  A SEVERE THUNDESTORM WAS 15 MILES SOUTHWEST
OF MUSKOGEE OKLAHOMA.

THE THUNDERSTORM WAS MOVING TO THE EAST NORTHEAST AT 30
MILES PER HOUR.

REMEMBER THESE STORMS CAN AND OCCASIONALLY DO PRODUCE A TORNADO
WITH LITTLE OR NO ADVANCED WARNING SO BE ON THE LOOKOUT.

IF YOU ARE IN OR NEAR THE WARNING AREA GET TO A REINFORCED SHELTER
AND PREPARE FOR STRONG DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAINFALL AND LIGHTNING.  PEOPLE IN MOBILE HOMES SHOULD SEEK
SHELTER IN A NEARBY REINFORCED BUILDING OR GET INTO A DITCH OR
OTHER GROUND DEPRESSION.

KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.

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, 3 hours 18 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, 2 hours 46 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, 7:55 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	65 min
May 14, 9:36 PM CDT	Severe Thunderstorm Warning	TSA	LeFlore	54 min
May 15, 5:11 AM CDT	Severe Thunderstorm Warning	TSA	Muskogee, Wagoner	64 min
May 15, 6:19 AM CDT	Severe Thunderstorm Warning	TSA	Adair, Cherokee	56 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.