Alert archive / Kansas / Tornado Warnings in 2001

Tornado Warning 1, NWS Topeka, KS

April 11, 2001Republic County, Washington County, Kansas

NWS Topeka, KS issued this tornado warning at Apr 11, 2001, 1:41 AM CDT for Republic County, Washington County, Kansas. It was in force for 34 min. 5 reports came from inside the area while it was in force.

The area

The outline the Iowa Environmental Mesonet reconstructed for it; the warning itself named whole counties, with what was reported inside it.

The facts

Issued: Apr 11, 2001, 1:41 AM CDT (06:41 UTC)
Expired: Apr 11, 2001, 2:15 AM CDT
In force: 34 min
Issued by: NWS Topeka, KS
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Republic County, KS, Washington County, KS

What was reported inside it

Time	Report	Where	Remark
Apr 11, 1:47 AM CDT	Thunderstorm Wind 65 E	Haddam, KS	Strong thunderstorm winds damaged a house.
Apr 11, 1:55 AM CDT	Tornado F0	Haddam, KS	A tornado touched down over open country and damaged trees and some outbuildings before dissipating near the Nebraska border.
Apr 11, 2:05 AM CDT	Tornado F1	Washington, KS	A tornado touched down near Washington and moved northeast . The tornado damaged outbuildings, an antenna, and power poles before dissipating 2 miles north of Washington.
Apr 11, 2:15 AM CDT	Thunderstorm Wind 65 E	Washington, KS
Apr 11, 2:15 AM CDT	Thunderstorm Wind 70 E	Washington, KS	Strong thunderstorm winds blew windows out of a house.

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
Apr 10, 10:15 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 6.7 hours before the alert went out and 173 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: 2027 J/kg
Mixed-layer CIN: -14 J/kg
Mixed-layer LCL: 651 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 342 m²/s²
0-3 km storm-relative helicity: 551 m²/s²
Significant tornado parameter: 6.5
Supercell composite: 24.9

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KTOP 110642
TORTOP
KSC157-201-110715-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE TOPEKA KS
141 AM CDT WED APR 11 2001

THE NATIONAL WEATHER SERVICE IN TOPEKA HAS ISSUED A

* TORNADO WARNING FOR...
  EAST CENTRAL REPUBLIC COUNTY IN NORTH CENTRAL KANSAS
  NORTHWESTERN WASHINGTON COUNTY IN NORTH CENTRAL KANSAS

* UNTIL 215 AM CDT

* AT 138 AM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 4 MILES WEST OF CUBA...OR ABOUT 18 MILES NORTH OF
  CONCORDIA...MOVING EAST AT 50 MPH.

* SOME LOCATIONS AFFECTED...
  HADDAM
  MORROWVILLE
  WASHINGTON

THE SAFEST PLACE TO BE DURING A TORNADO IS IN A BASEMENT. IF NO
BASEMENT IS AVAILABLE...SEEK SHELTER ON THE LOWEST FLOOR OF THE
BUILDING IN AN INTERIOR HALLWAY OR CLOSET. USE BLANKETS OR PILLOWS TO
COVER YOUR HEAD AND ALWAYS STAY AWAY FROM WINDOWS.

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

LAT...LON 3989 9755 3975 9750 3981 9699 3997 9702

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 11, 1:07 AM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic	38 min
Apr 11, 1:46 AM CDT	Severe Thunderstorm Warning	TOP	Cloud, Republic, Washington	44 min

Nearby

Tornado Warnings in Kansas, 2001 Every tornado warning in 2001 Tornadoes in 2001

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.