Alert archive / Oklahoma / Tornado Warnings in 1986

Tornado Warning 8, NWS Tulsa, OK

September 26, 1986Okmulgee County, Oklahoma

NWS Tulsa, OK issued this tornado warning at Sep 26, 1986, 4:32 PM CDT for Okmulgee County, Oklahoma. It was in force for 58 min.

The area

The counties it named.

The facts

Issued: Sep 26, 1986, 4:32 PM CDT (21:32 UTC)
Expired: Sep 26, 1986, 5:30 PM CDT
In force: 58 min
Issued by: NWS Tulsa, OK
Area: Whole counties

County Okmulgee 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, 9.5 hours before the alert went out and 151 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 2478 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 665 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 213 m²/s²
0-3 km storm-relative helicity: 184 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 8.3

Open this sounding in Storm Lab

The text

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

000 
TTAAOO KTUL 262132
TORTUL
OKC111-262230-
 
BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TULSA OK
432 PM CDT FRI SEP 26 1986
 
THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING
EFFECTIVE UNTIL  530 PM CDT FOR PEOPLE IN THE FOLLOWING COUNTIES:
 
IN NORTHEAST OKLAHOMA
          ..NORTHERN OKMULGEE

AT 430 PM...A TORNADO WAS INDICATED BY RADAR 5 MILES EAST OF SLICK
OKLAHOMA.
 
THE TORNADO WAS MOVING TO THE EAST NORTHEAST A 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.

The office that day

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

Issued	Product	Office	Counties	Lasted
Sep 26, 4:00 PM CDT	Severe Thunderstorm Warning	TSA	Creek	60 min
Sep 26, 5:03 PM CDT	Tornado Warning	TSA	Tulsa	57 min
Sep 26, 5:36 PM CDT	Severe Thunderstorm Warning	TSA	Okmulgee, Tulsa, Wagoner	54 min
Sep 26, 6:31 PM CDT	Severe Thunderstorm Warning	TSA	Mayes, Wagoner	59 min
Sep 26, 6:50 PM CDT	Tornado Warning	TSA	Mayes, Wagoner	55 min

Nearby

Tornado Warnings in Oklahoma, 1986 Every tornado warning in 1986 Tornadoes 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.