Alert archive / Kansas / Severe Thunderstorm Warnings in 1986

Severe Thunderstorm Warning 52, NWS Topeka, KS

May 5, 1986Jefferson County, Kansas

NWS Topeka, KS issued this severe thunderstorm warning at May 5, 1986, 10:40 PM CDT for Jefferson County, Kansas. It was in force for 65 min. 1 report 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: May 5, 1986, 10:40 PM CDT (03:40 UTC)
Expired: May 5, 1986, 11:45 PM CDT
In force: 65 min
Issued by: NWS Topeka, KS
Area: Whole counties

County Jefferson 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	Remark
May 5, 10:45 PM CDT	Hail 0.75	Jefferson, 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 00:00Z, 3.7 hours before the alert went out and 34 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: 2272 J/kg
Mixed-layer CIN: -6 J/kg
Mixed-layer LCL: 1074 m above ground
0-6 km bulk shear: 44 kt
0-1 km storm-relative helicity: 24 m²/s²
0-3 km storm-relative helicity: 110 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 4.4

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

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, May 5, 5:34 PM CDT, 5 hours 6 minutes before

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE TOPEKA KS
530 PM CDT MON MAY 5 1986

...THUNDERSTORMS DEVELOP OVER NORTHEAST AND EAST CENTRAL KANSAS...

AT 5.30 PM...A LINE OF THUNDERSTORMS HAD DEVELOPED OVER NORTHEAST AND
EAST CENTRAL KANSAS.  THE LINE EXTENDED FROM PERRY RESERVOIR...THROUGH
OSAGE CITY TO EMPORIA.

ISOLATED HEAVY RAINS AND STRONG GUSTY WINDS MAY BE POSSIBLE WITH
SOME OF THESE THUNDERSTORMS.

THE LINE WILL REMAIN NEARLY STATIONARY DURING THE EARLY EVENING HOURS
WITH THE INDIVIDUAL THUNDERSTORMS MOVING NORTHEAST AT 35 MILES AN
HOUR.

SUNKEL

Special weather statement, May 5, 9:05 PM CDT, 1 hour 35 minutes before

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Special weather statement, May 5, 10:11 PM CDT, 29 minutes before

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    <section class="card" role="status" aria-live="polite">
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

Issued	Product	Office	Counties	Lasted
May 5, 7:33 PM CDT	Severe Thunderstorm Warning	TOP	Franklin	37 min
May 5, 10:24 PM CDT	Severe Thunderstorm Warning	TOP	Shawnee	51 min

Nearby

Severe Thunderstorm Warnings in Kansas, 1986 Every 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.