Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 122, NWS Tulsa, OK

August 7, 1986Ottawa County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Aug 7, 1986, 11:54 PM CDT for Ottawa County, Oklahoma. It was in force for 66 min.

The area

The counties it named.

The facts

Issued
Aug 7, 1986, 11:54 PM CDT (04:54 UTC)
Expired
Aug 8, 1986, 1:00 AM CDT
In force
66 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Ottawa 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

Topeka, KS (KTOP), launched 00:00Z, 4.9 hours before the alert went out and 251 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, Topeka, KS at 00:00Z on 1986-08-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2194 joules per kilogram.LCLEL10008507005003002001001 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, Topeka, KS at 00:00Z on 1986-08-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -1 square meters per square second.193958Sfc1 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
2194 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
1280 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
-1 m²/s²
0-3 km storm-relative helicity
106 m²/s²
Significant tornado parameter
0.3
Supercell composite
2.3

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Aug 7, 9:18 PM CDTSevere Thunderstorm WarningTSAOsage57 min
Aug 7, 9:34 PM CDTSevere Thunderstorm WarningTSAMayes, Rogers56 min
Aug 7, 9:48 PM CDTSevere Thunderstorm WarningTSAOsage, Washington57 min
Aug 7, 11:04 PM CDTSevere Thunderstorm WarningTSACraig56 min
Aug 7, 11:29 PM CDTSevere Thunderstorm WarningTSARogers61 min
Aug 8, 12:01 AM CDTSevere Thunderstorm WarningTSANowata59 min
Aug 8, 12:13 AM CDTSevere Thunderstorm WarningTSAOsage62 min
Aug 8, 12:37 AM CDTSevere Thunderstorm WarningTSARogers, Washington68 min
Aug 8, 5:28 AM CDTFlash Flood WarningTSANowata, Washington4 hr
Aug 8, 5:28 AM CDTFlash Flood WarningTSAOsage4 hr
Aug 8, 12:40 AM CDTSevere Thunderstorm WarningTSABenton65 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; the sounding from the Mesonet's radiosonde archive.