Alert archive / Oklahoma / Tornado Warnings in 1986

Tornado Warning 49, NWS Norman, OK

October 2, 1986Cleveland County, McClain County, Oklahoma

NWS Norman, OK issued this tornado warning at Oct 2, 1986, 5:35 PM CDT for Cleveland County, McClain County, Oklahoma. It was in force for 30 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
Oct 2, 1986, 5:35 PM CDT (22:35 UTC)
Expired
Oct 2, 1986, 6:05 PM CDT
In force
30 min
Issued by
NWS Norman, OK
Area
Whole counties

Counties Cleveland County, OK, McClain 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

TimeReportWhereRemark
Oct 2, 6:00 PM CDTHail 0.88Cleveland, 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, 10.6 hours before the alert went out and 38 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, Ok Cty/Will Rgrs, OK at 12:00Z on 1986-10-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 44 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Ok Cty/Will Rgrs, OK at 12:00Z on 1986-10-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 14 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
44 J/kg
Mixed-layer CIN
-188 J/kg
Mixed-layer LCL
1213 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
14 m²/s²
0-3 km storm-relative helicity
88 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 
TTAAOO KOKC 022238
TOROKC
OKC087-027-022305-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
535 PM CDT THU OCT  2 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL  605 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:

IN CENTRAL OKLAHOMA
          ..NORTHERN MCCLAIN AND CLEVELAND..

AT 535 PM CDT RADAR INDICATED A POSSIBLE TORNADO 2 MILES NORTH OF
WASHINGTON MOVING TOWARD THE EAST AT 25 MILES PER HOUR. PERSONS IN
NOBLE ARE IN THE PROJECTED PATH OF THIS STORM AND SHOULD BE PREPARED
TO TAKE COVER.

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 1, 8:00 PM CDTTornado WarningOUNHarmon40 min
Oct 1, 8:04 PM CDTSevere Thunderstorm WarningOUNBeckham56 min
Oct 1, 8:18 PM CDTTornado WarningOUNBeckham27 min
Oct 1, 8:37 PM CDTTornado WarningOUNBeckham, Greer38 min
Oct 1, 9:06 PM CDTTornado WarningOUNGreer34 min
Oct 1, 9:27 PM CDTTornado WarningOUNCuster, Washita33 min
Oct 1, 9:48 PM CDTSevere Thunderstorm WarningOUNEllis, Woodward47 min
Oct 1, 9:59 PM CDTTornado WarningOUNKiowa, Washita41 min
Oct 2, 9:04 AM CDTFlash Flood WarningOUNCanadian, Logan, Oklahoma116 min
Oct 2, 9:04 AM CDTFlash Flood WarningOUNCleveland116 min
Oct 2, 10:16 AM CDTTornado WarningOUNLogan, Oklahoma59 min
Oct 2, 10:29 AM CDTFlash Flood WarningOUNKingfisher2 hr
Oct 2, 10:36 AM CDTFlash Flood WarningOUNGrady54 min
Oct 2, 11:08 AM CDTTornado WarningOUNLogan, Payne37 min
Oct 2, 11:27 AM CDTFlash Flood WarningOUNGarfield93 min
Oct 2, 1:31 PM CDTFlash Flood WarningOUNCanadian, Kingfisher119 min
Oct 2, 1:51 PM CDTFlash Flood WarningOUNKay, Noble2 hr
Oct 2, 2:49 PM CDTFlash Flood WarningOUNLogan, Oklahoma3 hr
Oct 2, 3:28 PM CDTFlash Flood WarningOUNCanadian, Kingfisher3 hr
Oct 2, 4:12 PM CDTTornado WarningOUNLogan33 min
Oct 2, 4:27 PM CDTFlash Flood WarningOUNGrady93 min
Oct 2, 5:03 PM CDTTornado WarningOUNLogan32 min
Oct 2, 5:35 PM CDTFlash Flood WarningOUNCleveland, McClain115 min
Oct 2, 6:05 PM CDTSevere Thunderstorm WarningOUNLincoln, Pottawatomie40 min
Oct 2, 6:28 PM CDTTornado WarningOUNLincoln, Pottawatomie32 min

Nearby

Tornado Warnings in Oklahoma, 1986Every tornado warning in 1986Tornadoes 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.