Alert archive / Missouri / Tornado Warnings in 2002

Tornado Warning 5, NWS Kansas City, MO

April 27, 2002Linn County, Missouri

NWS Kansas City, MO issued this tornado warning at Apr 27, 2002, 6:53 PM CDT for Linn County, Missouri. It was in force for 37 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Apr 27, 2002, 6:53 PM CDT (23:53 UTC)
Expired: Apr 27, 2002, 7:30 PM CDT
In force: 37 min
Issued by: NWS Kansas City, MO
Area: Counties, with a storm outline in the text

County Linn County, MO

What was reported inside it

Time	Report	Where	Remark
Apr 27, 7:30 PM CDT	Hail 0.75	Purdin, 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
Apr 27, 3:00 PM CDT	Tornado Watch	SPC	5 hr
Apr 27, 6:30 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 11.9 hours before the alert went out and 238 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: 5 J/kg
Mixed-layer CIN: 0 J/kg
Mixed-layer LCL: 441 m above ground
0-6 km bulk shear: 56 kt
0-1 km storm-relative helicity: 528 m²/s²
0-3 km storm-relative helicity: 630 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.0

Open this sounding in Storm Lab

The text

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

252 
WFUS53 KEAX 272353
TORMCI
MOC115-280030-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
652 PM CDT SAT APR 27 2002

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* TORNADO WARNING FOR...
  NORTHERN LINN COUNTY IN NORTH CENTRAL MISSOURI

* UNTIL 730 PM CDT

* AT 647 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM WITH A DEVELOPING TORNADO 8 MILES EAST OF
  CHULA...OR 14 MILES NORTHEAST OF CHILLICOTHE...MOVING NORTHEAST 
  AT 30 MPH. NUMEROUSE SIGHTINGS OF FUNNEL CLOUDS HAVE BEEN REPORTED 
  WITH THIS STORM.

* THE TORNADO IS EXPECTED TO BE NEAR...
   PURDIN BY 700 PM CDT.
   SHELBY BY 715 PM CDT.
   NEW BOSTON BY 725 PM CDT.

WHEN A TORNADO WARNING IS ISSUED BASED ON DOPPLER RADAR...IT MEANS
THAT STRONG ROTATION HAS BEEN DETECTED IN THE STORM. A TORNADO MAY
ALREADY BE ON THE GROUND...OR IS EXPECTED TO DEVELOP SHORTLY. IF YOU
ARE IN THE PATH OF THIS DANGEROUS STORM...MOVE INDOORS AND TO THE
LOWEST LEVEL OF THE BUILDING. STAY AWAY FROM WINDOWS. IF DRIVING...DO
NOT SEEK SHELTER UNDER A HIGHWAY OVERPASS.

IN ADDITION TO THE TORNADO THREAT...LARGE HAIL AND DESTRUCTIVE
THUNDERSTORM WINDS ARE ALSO LIKELY WITH THIS STORM.

LAT...LON 4002 9337 3982 9336 3990 9286 4003 9286

PB

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 27, 4:45 PM CDT	Tornado Warning	EAX	Andrew, Buchanan	30 min
Apr 27, 5:50 PM CDT	Tornado Warning	EAX	Caldwell	40 min
Apr 27, 6:15 PM CDT	Tornado Warning	EAX	Livingston	45 min
Apr 27, 6:25 PM CDT	Tornado Warning	EAX	Pettis	50 min

Nearby

Tornado Warnings in Missouri, 2002 Every tornado warning in 2002 Tornadoes in 2002

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.