Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 310, NWS Norman, OK

June 7, 1986Grant County, Kay County, Oklahoma

NWS Norman, OK issued this severe thunderstorm warning at Jun 7, 1986, 2:53 AM CDT for Grant County, Kay County, Oklahoma. It was in force for 37 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
Jun 7, 1986, 2:53 AM CDT (07:53 UTC)
Expired
Jun 7, 1986, 3:30 AM CDT
In force
37 min
Issued by
NWS Norman, OK
Area
Whole counties

Counties Grant County, OK, Kay 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
Jun 7, 3:00 AM CDTThunderstorm Wind 0Kay, OK
Jun 7, 3:30 AM CDTThunderstorm Wind 0Kay, 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 00:00Z, 7.9 hours before the alert went out and 157 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 00:00Z on 1986-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2209 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, Ok Cty/Will Rgrs, OK at 00:00Z on 1986-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.1939Sfc1 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
2209 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1291 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
140 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 070753
SVROKC
OKC053-071-070830-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
253 AM CDT SAT JUN  7 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL  330 AM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN NORTHWEST OKLAHOMA
          ..SOUTHEASTERN GRANT
IN NORTHEAST OKLAHOMA
          ..SOUTHWESTERN KAY

AT 253 AM RADAR INDICATED A SEVERE THUNDERSTORM AT DEER CREEK MOVING
TOWARD THE SOUTHEAST AT 35 MPH. WINDS NEAR 60 MPH AND HAIL NEAR 3/4
OF AN INCH CAN BE EXPECTED FROM THIS STORM.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 7, 1:30 AM CDTSevere Thunderstorm WarningOUNHarper60 min
Jun 7, 1:45 AM CDTSevere Thunderstorm WarningOUNWoods60 min
Jun 7, 3:03 AM CDTSevere Thunderstorm WarningOUNGarfield, Kingfisher, Major57 min
Jun 7, 3:03 AM CDTSevere Thunderstorm WarningOUNBlaine57 min
Jun 7, 4:00 AM CDTSevere Thunderstorm WarningOUNRoger Mills60 min

Nearby

Severe Thunderstorm Warnings in Oklahoma, 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.