Alert archive / Oklahoma / Tornado Warnings in 1986

Tornado Warning 11, NWS Tulsa, OK

September 29, 1986Creek County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Sep 29, 1986, 5:22 PM CDT for Creek County, Oklahoma. It was in force for 68 min.

The area

The counties it named.

The facts

Issued
Sep 29, 1986, 5:22 PM CDT (22:22 UTC)
Expired
Sep 29, 1986, 6:30 PM CDT
In force
68 min
Issued by
NWS Tulsa, OK
Area
Whole counties

County Creek 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, 10.4 hours before the alert went out and 124 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 1986-09-29Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 306 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 1986-09-29The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 223 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
306 J/kg
Mixed-layer CIN
-14 J/kg
Mixed-layer LCL
802 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
223 m²/s²
0-3 km storm-relative helicity
298 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 KTUL 292222
TORTUL
OKC037-292330-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
522 PM CDT MON SEP 29 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL  630 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN NORTHEAST OKLAHOMA
          ..NORTHERN CREEK

AT 522 PM A TORNADO WAS REPORTED BY THE DRUMRIGHT PD JUST WEST OF
SHAMROCK OKLAHOMA.THE TORNADO WAS MOVING TO THE NORTHEAST AT 30 MPH.
 
 
THIS IS A DANGEROUS STORM SITUATION.  ACT QUICKLY.  IF YOU ARE IN
THE PATH OF THIS TORNADO MOVE TO A SHELTER BELOW GROUND IF
AVAILABLE.  OTHERWISE, GO TO A SMALL INTERIOR ROOM ON THE LOWEST
FLOOR POSSIBLE.  STAY AWAY FROM OUTSIDE WALLS AND AVOID WINDOWS.
ABANDON CARS AND MOBILE HOMES FOR A REINFORCED BUILDING OR GET
INTO A GROUND DEPRESSION.
 
KEEP TUNED TO THIS STATION FOR THE LATEST WEATHER BULLETINS.

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; the sounding from the Mesonet's radiosonde archive.