Alert archive / Kansas / Tornado Warnings in 1998

Tornado Warning 21, NWS Topeka, KS

June 20, 1998Marshall County, Nemaha County, Pottawatomie County, Kansas

NWS Topeka, KS issued this tornado warning at Jun 20, 1998, 5:37 PM CDT for Marshall County, Nemaha County, Pottawatomie County, Kansas. It was in force for 33 min. 5 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
Jun 20, 1998, 5:37 PM CDT (22:37 UTC)
Expired
Jun 20, 1998, 6:10 PM CDT
In force
33 min
Issued by
NWS Topeka, KS
Area
Whole counties

Counties Marshall County, KS, Nemaha County, KS, Pottawatomie County, KS

What was reported inside it

TimeReportWhereRemark
Jun 20, 5:40 PM CDTHail 1.25Frankfort, KS
Jun 20, 5:40 PM CDTHail 1.75Axtell, KS
Jun 20, 5:47 PM CDTTornado F0Seneca, KS
Jun 20, 5:59 PM CDTHail 1.75Frankfort, KS
Jun 20, 6:10 PM CDTHail 1.75Beattie, 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.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Jun 20, 3:15 PM CDTTornado WatchSPC6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 10.6 hours before the alert went out and 91 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, Topeka, KS at 12:00Z on 1998-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2555 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, Topeka, KS at 12:00Z on 1998-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 179 square meters per square second.193958Sfc1 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
2555 J/kg
Mixed-layer CIN
-270 J/kg
Mixed-layer LCL
997 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
179 m²/s²
0-3 km storm-relative helicity
221 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.4

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.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 19, 8:42 PM CDTSevere Thunderstorm WarningTOPAnderson, Coffey43 min
Jun 19, 9:20 PM CDTSevere Thunderstorm WarningTOPAnderson, Coffey30 min
Jun 19, 9:35 PM CDTSevere Thunderstorm WarningTOPLyon, Morris, Wabaunsee45 min
Jun 19, 10:18 PM CDTSevere Thunderstorm WarningTOPAnderson22 min
Jun 19, 10:18 PM CDTSevere Thunderstorm WarningTOPShawnee, Wabaunsee32 min
Jun 19, 10:35 PM CDTSevere Thunderstorm WarningTOPShawnee30 min
Jun 19, 10:40 PM CDTSevere Thunderstorm WarningTOPAnderson30 min
Jun 20, 4:55 PM CDTTornado WarningTOPMarshall, Nemaha45 min
Jun 20, 5:40 PM CDTTornado WarningTOPMarshall, Nemaha, Pottawatomie30 min
Jun 20, 6:05 PM CDTTornado WarningTOPMarshall, Nemaha, Pottawatomie35 min
Jun 20, 6:07 PM CDTSevere Thunderstorm WarningTOPBrown, Nemaha48 min
Jun 20, 6:34 PM CDTTornado WarningTOPJackson31 min
Jun 20, 6:57 PM CDTTornado WarningTOPJackson28 min

Nearby

Tornado Warnings in Kansas, 1998Every tornado warning in 1998Tornadoes in 1998

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.