Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 1, NWS Tulsa, OK

March 9, 1986Pawnee County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Mar 9, 1986, 9:50 PM CST for Pawnee County, Oklahoma. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
Mar 9, 1986, 9:50 PM CST (03:50 UTC)
Expired
Mar 9, 1986, 10:40 PM CST
In force
50 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Pawnee 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 00:00Z, 3.8 hours before the alert went out and 130 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 1986-03-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 654 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 1986-03-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 124 square meters per square second.1939587897Sfc1 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
654 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
2039 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
124 m²/s²
0-3 km storm-relative helicity
246 m²/s²
Significant tornado parameter
0.0
Supercell composite
3.3

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

000 
TTAA00 KOKC 100355
SVROKC
OKC117-119-083-081-125-087-051-049-137-033-067-019-100440-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE OKLAHOMA CITY OK
950 PM CST SUN MAR 9  1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING
EFFECTIVE UNTIL 1040PM CST FOR PERSONS IN THE FOLLOWING COUNTIES IN

OKLAHOMA...PAWNEE  PAYNE  SOUTHEAST LOGAN LINCOLN POTTOWATOMIE
MCCLAIN SOUTHEAST GRADY GARVIN STEPHENS SOUTHEAST COTTON JEFFERSON
CARTER

AT 950 PM, OKLAHOMA CITY RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
FROM 10 MILES NORTHWEST OF PAWNEE TO EDMOND  AND FROM MCLOUD TO 10 MILES
SOUTHWEST OF WAURIKA. THESE STORMS WERE MOVING NORTHEAST AT 55 MPH.
	
WINDS IN EXCESS OF 60 MILES AN HOUR AND LARGE HAIL ARE LIKELY WITH
THESE STORMS.

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 10, 12:51 AM CSTSevere Thunderstorm WarningTSALeFlore, Sequoyah54 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.