Alert archive / Kansas / Tornado Warnings in 1998

Tornado Warning 23, NWS Topeka, KS

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

NWS Topeka, KS issued this tornado warning at Jun 20, 1998, 6:05 PM CDT for Marshall County, Nemaha County, Pottawatomie County, Kansas. It was in force for 35 min. 2 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, 6:05 PM CDT (23:05 UTC)
Expired: Jun 20, 1998, 6:40 PM CDT
In force: 35 min
Issued by: NWS Topeka, KS
Area: Whole counties

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

What was reported inside it

Time	Report	Where	Remark
Jun 20, 6:10 PM CDT	Hail 1.75	Beattie, KS
Jun 20, 6:38 PM CDT	Hail 0.75	Havensville, 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.

Issued	Product	Office	Lasted
Jun 20, 3:15 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 11.1 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-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: 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

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

754 
WFUS1 KTOP 202307 RRA
TORTOP
KSC117-131-149-202340-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
605 PM CDT SAT JUN 20 1998

THE NATIONAL WEATHER SERVICE IN TOPEKA KS HAS ISSUED A

* TORNADO WARNING FOR...
     NORTHEASTERN POTTAWATOMIE COUNTY IN NORTHEAST KANSAS
     SOUTHWESTERN NEMAHA COUNTY IN NORTHEAST KANSAS
     SOUTHEASTERN MARSHALL COUNTY IN NORTHEAST KANSAS

* UNTIL 640 PM CDT

* AT 600 PM CDT NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  THUNDERSTORM WITH A POSSIBLE TORNADO 2 MILES WEST OF LILLIS...OR
  ABOUT 23 MILES SOUTHEAST OF MARYSVILLE...MOVING SOUTHEAST AT 25
  MILES PER HOUR.

* SOME LOCATIONS AFFECTED...
     LILLIS
     HAVENSVILLE
     ONAGA
     WHEATON

IF YOU ARE CAUGHT OUTSIDE...SEEK SHELTER IN A NEARBY REINFORCED
BUILDING. AS A LAST RESORT...SEEK SHELTER IN A CULVERT...DITCH OR LOW
SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

IF IN MOBILE HOMES OR VEHICLES...LEAVE THEM AND GET INSIDE A
SUBSTANTIAL SHELTER. IF NO SHELTER IS AVAILABLE...LIE FLAT IN THE
NEAREST DITCH OR OTHER LOW SPOT AND COVER YOUR HEAD WITH YOUR HANDS.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL MEDIA OUTLETS FOR THE
LATEST SEVERE WEATHER INFORMATION.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 19, 8:42 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	43 min
Jun 19, 9:20 PM CDT	Severe Thunderstorm Warning	TOP	Anderson, Coffey	30 min
Jun 19, 9:35 PM CDT	Severe Thunderstorm Warning	TOP	Lyon, Morris, Wabaunsee	45 min
Jun 19, 10:18 PM CDT	Severe Thunderstorm Warning	TOP	Anderson	22 min
Jun 19, 10:18 PM CDT	Severe Thunderstorm Warning	TOP	Shawnee, Wabaunsee	32 min
Jun 19, 10:35 PM CDT	Severe Thunderstorm Warning	TOP	Shawnee	30 min
Jun 19, 10:40 PM CDT	Severe Thunderstorm Warning	TOP	Anderson	30 min
Jun 20, 4:55 PM CDT	Tornado Warning	TOP	Marshall, Nemaha	45 min
Jun 20, 5:37 PM CDT	Tornado Warning	TOP	Marshall, Nemaha, Pottawatomie	33 min
Jun 20, 5:40 PM CDT	Tornado Warning	TOP	Marshall, Nemaha, Pottawatomie	30 min
Jun 20, 6:07 PM CDT	Severe Thunderstorm Warning	TOP	Brown, Nemaha	48 min
Jun 20, 6:34 PM CDT	Tornado Warning	TOP	Jackson	31 min
Jun 20, 6:57 PM CDT	Tornado Warning	TOP	Jackson	28 min

Nearby

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