Alert archive / Missouri / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 89, NWS Kansas City, MO

May 6, 2002Lafayette County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 6, 2002, 10:20 PM CDT for Lafayette County, Missouri. It was in force for 55 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: May 6, 2002, 10:20 PM CDT (03:20 UTC)
Expired: May 6, 2002, 11:15 PM CDT
In force: 55 min
Issued by: NWS Kansas City, MO
Area: Counties, with a storm outline in the text

County Lafayette County, MO

The radar

The Pleasant Hill radar (KEAX), 56 km from the middle of the area, began a volume at 03:21 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, 10:53 PM CDT	Hail 0.75	Odessa, 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, 10:00 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 3.3 hours before the alert went out and 165 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: 3555 J/kg
Mixed-layer CIN: -19 J/kg
Mixed-layer LCL: 992 m above ground
0-6 km bulk shear: 65 kt
0-1 km storm-relative helicity: 177 m²/s²
0-3 km storm-relative helicity: 208 m²/s²
Significant tornado parameter: 4.9
Supercell composite: 15.9

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KEAX 070320
SVRMCI
MOC107-070415-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1018 PM CDT MON MAY 6 2002

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  LAFAYETTE COUNTY IN WEST CENTRAL MISSOURI

* UNTIL 1115 PM CDT

* AT 1016 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
  SEVERE THUNDERSTORMS CAPABLE OF PRODUCING HAIL TO THE SIZE OF
  NICKELS...AND DAMAGING WINDS IN EXCESS OF 60 MPH.  THESE STORMS
  WERE LOCATED ALONG A LINE EXTENDING FROM PITTSVILLE TO
  FAYETTEVILLE...AND MOVING NORTH AT 20 MPH.

* THE SEVERE THUNDERSTORMS WILL BE NEAR...
   ODESSA BY 1035 PM CDT.
   CONCORDIA BY 1040 PM CDT.
   MAYVIEW...HIGGINSVILLE BY 1050 PM CDT.
   ALMA BY 1100 PM CDT.
   LEXINGTON BY 1110 PM CDT.
   DOVER...WAVERLY BY 1115 PM CDT.

THE TOWNS OF AULLVILLE AND CORDER ARE ALSO IN THE PATH OF THESE
STORMS.

THIS IS A DANGEROUS STORM. IF YOU ARE IN ITS PATH...PREPARE
IMMEDIATELY FOR DAMAGING WINDS...DESTRUCTIVE HAIL...AND DEADLY CLOUD
TO GROUND LIGHTNING. PEOPLE OUTSIDE SHOULD MOVE TO A SHELTER...
PREFERABLY INSIDE A STRONG BUILDING BUT AWAY FROM WINDOWS.

LAT...LON 3891 9354 3922 9351 3924 9362 3921 9372
          3921 9387 3915 9397 3893 9406

The office that day

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

Issued	Product	Office	Counties	Lasted
May 6, 9:27 PM CDT	Severe Thunderstorm Warning	EAX	Linn	48 min
May 6, 9:35 PM CDT	Severe Thunderstorm Warning	EAX	Platte	55 min
May 6, 9:56 PM CDT	Severe Thunderstorm Warning	EAX	Johnson	49 min
May 6, 10:30 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Platte	60 min
May 6, 11:02 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Howard, Saline	58 min
May 6, 11:29 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	61 min
May 6, 11:31 PM CDT	Severe Thunderstorm Warning	EAX	Carroll	59 min
May 6, 11:34 PM CDT	Severe Thunderstorm Warning	EAX	Clay	41 min
May 6, 11:42 PM CDT	Severe Thunderstorm Warning	EAX	Cass	63 min
May 7, 12:13 AM CDT	Severe Thunderstorm Warning	EAX	Bates	62 min
May 7, 12:15 AM CDT	Severe Thunderstorm Warning	EAX	Johnson	60 min
May 7, 12:24 AM CDT	Severe Thunderstorm Warning	EAX	Henry	96 min
May 7, 12:57 AM CDT	Severe Thunderstorm Warning	EAX	Pettis	63 min
May 7, 1:04 AM CDT	Flash Flood Warning	EAX	Saline	4 hr
May 7, 1:13 AM CDT	Severe Thunderstorm Warning	EAX	Cooper	62 min
May 7, 1:16 AM CDT	Flash Flood Warning	EAX	Cooper	4 hr

Nearby

Severe Thunderstorm Warnings in Missouri, 2002 Every severe thunderstorm warning 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; radar from the NEXRAD Level II archive.