Alert archive / Oklahoma / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 10, NWS Tulsa, OK

April 3, 1986Osage County, Oklahoma

NWS Tulsa, OK issued this severe thunderstorm warning at Apr 3, 1986, 12:53 PM CST for Osage County, Oklahoma. It was in force for 67 min.

The area

The counties it named.

The facts

Issued
Apr 3, 1986, 12:53 PM CST (18:53 UTC)
Expired
Apr 3, 1986, 2:00 PM CST
In force
67 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Osage 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, 6.9 hours before the alert went out and 174 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 1986-04-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1300 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 12:00Z on 1986-04-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 195 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
1300 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
576 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
195 m²/s²
0-3 km storm-relative helicity
144 m²/s²
Significant tornado parameter
0.7
Supercell composite
3.7

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTUL 031853
SVRTUL
OKC113-032000-

BULLETIN - IMMEDIATE BROADCAST REQUESTED/EBS ACTIVATION REQUESTED 
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE TULSA OK
1253 PM CST THU APR 3 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 200 PM CST FOR PEOPLE IN THE FOLLOWING 
COUNTY OF

OKLAHOMA...WESTERN OSAGE

AT 1248 PM  A SEVERE THUNDESTORM WAS 15 MILES SOUTHWEST OF
BURBANK,OK

THE THUNDERSTORM WAS MOVING TO THE NORTHEAST AT 50 MPH.

THIS THUNDERSTORM WILL LIKELY PRODUCE WINDS IN EXCESS OF 60
MILES AN HOUR AND HAIL 3/4 INCH OR LARGER IN DIAMETER.

IF YOU ARE IN OR NEAR THE WARNING AREA GET TO A REINFORCED SHELTER
AND PREPARE FOR STRONG DAMAGING WIND...LARGE HAIL...VERY HEAVY
RAINFALL AND LIGHTNING.  PEOPLE IN MOBILE HOMES SHOULD SEEK
SHELTER IN A NEARBY REINFORCED BUILDING OR GET INTO A DITCH OR
OTHER GROUND DEPRESSION.

KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.

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

Special weather statement, Apr 3, 11:33 AM CST, 1 hour 20 minutes before
SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TULSA OK
1127AM CST THU  APR  3  1986

A SEVERE THUNDERSTORM WATCH HAS BEEN ISSUED FOR LARGE PART
OF CENTRAL OKLAHOMA...INCLUDING THE TULSA AREA...UNTIL 4 PM.

AT 1125 AM...THE TULSA RADAR WAS SHOWING THAT THUNDERSTORMS
WERE DEVELOPING RAPIDLY OVER CENTRAL OKLAHOMA AND MOVING TO
THE NORTH NORTHEAST.  SOME OF THE STORMS HAVE REACH SEVERE
LIMITS WITH DAMAGING WINDS OF 60 MPH OR HIGHER AND LARGE
HAIL.

PEOPLE IN CREEK...PAWNEE...OSAGE...AND OKFUSKEE CAN EXPECT
AN INCREASING THREAT OF SEVERE WEATHER DURING THE NEXT TWO
HOURS.    OTHER AREAS FURTHER THE EAST CAN EXPECT HEAVY OR
SEVERE THUNDERSTORMS DURING THE MIDDLE AND LATE AFTERNOON.

KEEP- TUNED FOR THE LATER STATEMENTS AND POSSIBLE WARNINGS.

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.