Alert archive / Kansas / Tornado Warnings in 2001

Tornado Warning 21, NWS Kansas City, MO

June 1, 2001Johnson County, Leavenworth County, Kansas

NWS Kansas City, MO issued this tornado warning at Jun 1, 2001, 6:06 PM CDT for Johnson County, Leavenworth County, Kansas. It was in force for 24 min. 8 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: Jun 1, 2001, 6:06 PM CDT (23:06 UTC)
Expired: Jun 1, 2001, 6:30 PM CDT
In force: 24 min
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Johnson County, KS, Leavenworth County, KS

The radar

The Pleasant Hill radar (KEAX), 64 km from the middle of the area, began a volume at 23:08 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where
Jun 1, 6:19 PM CDT	Hail 1.75	De Soto, KS
Jun 1, 6:22 PM CDT	Thunderstorm Wind 57 M	Overland Park, KS
Jun 1, 6:22 PM CDT	Hail 1.75	Overland Park, KS
Jun 1, 6:22 PM CDT	Hail 2	Olathe, KS
Jun 1, 6:22 PM CDT	Thunderstorm Wind 61 M	De Soto, KS
Jun 1, 6:22 PM CDT	Hail 1	Linwood, KS
Jun 1, 6:30 PM CDT	Hail 1	Linwood, KS
Jun 1, 6:40 PM CDT	Hail 1	De Soto, 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 1, 3:30 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 60 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 856 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: 191 m²/s²
0-3 km storm-relative helicity: 246 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

000 
WFUS53 KEAX 012307
TORMCI

KSC091-103-012330-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
606 PM CDT FRI JUN 1 2001

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  JOHNSON COUNTY IN EAST CENTRAL KANSAS
  SOUTHERN LEAVENWORTH COUNTY IN NORTHEAST KANSAS

* UNTIL 630 PM CDT

* AT 606 PM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A
  DEVELOPING TORNADO 2 MILES NORTHEAST OF RENO...OR 12 MILES
  NORTHEAST OF LAWRENCE...MOVING SOUTHEAST AT 40 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  DE SOTO AT 615 PM CDT
  OLATHE AT 625 PM CDT
  GARDNER AT 630 PM CDT

THIS TORNADO IS EXPECTED TO CROSS INTERSTATE 70 IN LEAVENWORTH 
COUNTY. FOR YOUR SAFETY...DO NOT DRIVE INTO THE PATH OF THIS 
DANGEROUS STORM AND DO NOT SEEK SHELTER UNDER HIGHWAY OVERPASSES!

LAT...LON 3899 9516 3897 9505 3874 9503 3876 9463
          3889 9463 3902 9467 3905 9484 3900 9492
          3915 9493 3921 9491 3923 9504 3921 9516
          3923 9517

18

The office that day

Everything else NWS Kansas City, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jun 1, 4:59 PM CDT	Severe Thunderstorm Warning	EAX	Atchison	61 min
Jun 1, 5:24 PM CDT	Severe Thunderstorm Warning	EAX	Leavenworth	66 min
Jun 1, 5:50 PM CDT	Severe Thunderstorm Warning	EAX	Wyandotte	40 min
Jun 1, 6:26 PM CDT	Severe Thunderstorm Warning	EAX	Johnson	49 min
Jun 1, 6:41 PM CDT	Severe Thunderstorm Warning	EAX	Miami	64 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; radar from the NEXRAD Level II archive.