Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 61, NWS Tulsa, OK

May 14, 1986Creek County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at May 14, 1986, 5:18 PM CDT for Creek County, Oklahoma. It was in force for 57 min.

The area

The counties it named.

The facts

Issued: May 14, 1986, 5:18 PM CDT (22:18 UTC)
Expired: May 14, 1986, 6:15 PM CDT
In force: 57 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Creek County, OK

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

Ok Cty/Will Rgrs, OK (KOKC), launched 12:00Z, 10.3 hours before the alert went out and 124 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

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, 1 hour 24 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, 52 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, 4:48 PM CDT	Severe Thunderstorm Warning	TSA	Okfuskee	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; the sounding from the Mesonet's radiosonde archive.