Alert archive / Missouri / Tornado Warnings in 2001

Tornado Warning 12, NWS Kansas City, MO

May 6, 2001Clinton County, Missouri

NWS Kansas City, MO issued this tornado warning at May 6, 2001, 3:35 PM CDT for Clinton County, Missouri. It was in force for 40 min. 1 report 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: May 6, 2001, 3:35 PM CDT (20:35 UTC)
Expired: May 6, 2001, 4:15 PM CDT
In force: 40 min
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

County Clinton County, MO

The radar

The Pleasant Hill radar (KEAX), 83 km from the middle of the area, began a volume at 20:36 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	Remark
May 6, 3:45 PM CDT	Hail 0.75	Trimble, MO

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
May 6, 2:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 8.6 hours before the alert went out and 118 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: 466 J/kg
Mixed-layer CIN: -35 J/kg
Mixed-layer LCL: 706 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 36 m²/s²
0-3 km storm-relative helicity: 88 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 062036
TORMCI

MOC049-062115-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
335 PM CDT SUN MAY 6 2001

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  SOUTHERN CLINTON COUNTY IN NORTHWEST MISSOURI

* UNTIL 415 PM CDT

* AT 335 PM CDT...THE PUBLIC REPORTED A TORNADO ENTERING SOUTHERN
  CLINTON COUNTY EAST OF EDGERTON...MOVING EAST AT 35 MPH.

* THE TORNADO IS EXPECTED TO BE NEAR...
  LATHROP AT 345 PM CDT

STORM SPOTTERS HAVE CONFIRMED A TORNADO WITH THIS STORM! IF YOU ARE
IN THE PATH OF THIS STORM...SEEK SHELTER ON THE LOWEST LEVEL OF A
HOME OR OTHER BUILDING...AND STAY AWAY FRO6M WINDOWS AND OUTER WALLS.
DO NOT SEEK SHELTER UNDER HIGHWAY OVERPASSES!

LAT...LON 3958 9461 3945 9461 3946 9423 3963 9423

KOCH

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 2:43 PM CDT	Severe Thunderstorm Warning	EAX	Platte	47 min
May 6, 3:08 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan	37 min
May 6, 6:04 PM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	41 min
May 6, 6:12 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Livingston	48 min

Nearby

Tornado Warnings in Missouri, 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.