Alert archive / Kansas / Tornado Warnings in 1986

Tornado Warning 12, NWS Topeka, KS

September 22, 1986Brown County, Kansas

NWS Topeka, KS issued this tornado warning at Sep 22, 1986, 4:20 PM CDT for Brown County, Kansas. It was in force for 40 min. 3 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Sep 22, 1986, 4:20 PM CDT (21:20 UTC)
Expired: Sep 22, 1986, 5:00 PM CDT
In force: 40 min
Issued by: NWS Topeka, KS
Area: Whole counties

County Brown County, KS

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

What was reported inside it

Time	Report	Where
Sep 22, 4:20 PM CDT	Tornado F0	Brown, KS
Sep 22, 4:30 PM CDT	Tornado F0	Brown, KS
Sep 22, 4:50 PM CDT	Hail 2.75	Brown, KS

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 9.3 hours before the alert went out and 92 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: 1522 J/kg
Mixed-layer CIN: -79 J/kg
Mixed-layer LCL: 776 m above ground
0-6 km bulk shear: 21 kt
0-1 km storm-relative helicity: 149 m²/s²
0-3 km storm-relative helicity: 131 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 4.6

Open this sounding in Storm Lab

The text

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

000 
TTAA00 KTOP 222122
TORTOP
KSC013-222200-

BULLETIN - EBS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
420 PM CDT MON SEP 22 1986

THE NATIONAL WEATHER SERVICE HAS ISSUED A TORNADO WARNING EFFECTIVE
UNTIL 500 PM CDT FOR THE FOLLOWING COUNTY OR COUNTIES IN NORTHEAST
AND/OR  EAST CENTRAL KANSAS...

BROWN COUNTY TO INCLUDE THE CITY OF HIAWATHA

AT 415 PM CDT RADAR INDICATED AT TORNADO 4 MILES SOUTHWEST OF FAIRVIEW
OR 10 MILES WEST SOUTHWEST OF HIAWATHA. MOVEMENT WAS TO THE NORTHEAST
AT 35 MILES AN HOUR.

THIS IS A DANGEROUS STORM...GO TO A SAFE PLACE IMMEDIATELY. A FEW
SECONDS MIGHT SAVE YOUR LIFE.

FIND SHELTER QUICKLY.  BASEMENTS ARE BEST. CENTRAL PARTS OF HOMES AND
BUILDINGS 1ARE ALSO FAIRLY SAFE. LEAVE MOBILE HOMES AND VEHICLES...
EVEN A DITCH OR LOW SPOT IS SAFER.

THE SEVERE THUNDERSTORM WARNING FOR NEMAHA COUNTY IS NO LONGER IN
EFFECT.

CRANDALL

The office that day

Everything else NWS Topeka, KS issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 22, 3:58 PM CDT	Severe Thunderstorm Warning	TOP	Brown, Nemaha	47 min
Sep 22, 4:55 PM CDT	Severe Thunderstorm Warning	TOP	Atchison	50 min
Sep 22, 5:20 PM CDT	Severe Thunderstorm Warning	TOP	Brown	55 min
Sep 22, 6:27 PM CDT	Severe Thunderstorm Warning	TOP	McPherson, Rice	63 min

Nearby

Tornado Warnings in Kansas, 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.