Alert archive / Missouri / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 73, NWS Kansas City, MO

May 11, 2000Clay County, Platte County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 11, 2000, 11:11 PM CDT for Clay County, Platte County, Missouri. It was in force for 64 min. No storm report in the archive falls 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.

The facts

Issued: May 11, 2000, 11:11 PM CDT (04:11 UTC)
Expired: May 12, 2000, 12:15 AM CDT
In force: 64 min
Issued by: NWS Kansas City, MO
Area: Whole counties; the outline is the Mesonet’s reconstruction

Counties Clay County, MO, Platte County, MO

The radar

The Pleasant Hill radar (KEAX), 62 km from the middle of the area, began a volume at 04:12 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.

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 11, 7:00 PM CDT	Severe Thunderstorm Watch	SPC	5 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 4.2 hours before the alert went out and 102 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: 4491 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1450 m above ground
0-6 km bulk shear: 47 kt
0-1 km storm-relative helicity: 181 m²/s²
0-3 km storm-relative helicity: 232 m²/s²
Significant tornado parameter: 3.3
Supercell composite: 30.9

Open this sounding in Storm Lab

The text

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

421 
WUUS53 KEAX 120411
SVRMCI
MOC047-165-120515-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1111 PM CDT THU MAY 11 2000

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  CLAY COUNTY IN WEST CENTRAL MISSOURI
  SOUTHERN PLATTE COUNTY IN WEST CENTRAL MISSOURI

* UNTIL 1215 AM CDT

* AT 1111 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM OVER KCI AIRPORT...OR ABOUT 13 MILES 
  NORTHWEST   OF KANSAS CITY...MOVING EAST AT 40 MPH. THIS EXTENDS 
  THE WARNING FOR CLAY AND SOUTHERN PLATTE COUNTIES ISSUED EARLIER.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
  4 MILES SOUTH OF SMITHVILLE AT 1115 PM CDT
  8 MILES NORTH OF LIBERTY AT 1125 PM CDT
  OVER KEARNEY AT 1130 PM CDT
  5 MILES NORTH OF MOSBY AT 1135 PM CDT
  4 MILES NORTH OF EXCELSIOR SPRINGS AT 1140 PM CDT

THIS SEVERE THUNDERSTORM WILL LIKELY PRODUCE HAIL UP TO GOLFBALL 
SIZE...AND WINDS IN EXCESS OF 60 MPH. FOR YOUR SAFETY...MOVE INDOORS 
AND STAY AWAY FROM WINDOWS. REMEMBER...LIGHTNING IS A THREAT FROM ALL
THUNDERSTORMS. HEAVY RAINS CAN CAUSE LOCALIZED FLOODING OF LOW LYING 
AREAS.

LAT...LON 3937 9474 3920 9471 3923 9423 3946 9423

BUNTING

The office that day

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

Issued	Product	Office	Counties	Lasted
May 11, 8:15 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Platte	45 min
May 11, 8:56 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Clinton, Platte	49 min
May 11, 10:17 PM CDT	Severe Thunderstorm Warning	EAX	Clay, Platte	58 min
May 11, 11:15 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	60 min
May 11, 11:25 PM CDT	Tornado Warning	EAX	Clay	50 min
May 11, 11:31 PM CDT	Tornado Warning	EAX	Jackson	44 min
May 11, 11:48 PM CDT	Tornado Warning	EAX	Lafayette, Ray	42 min
May 12, 12:36 AM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Platte	39 min
May 12, 12:39 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Clinton	51 min
May 12, 12:43 AM CDT	Tornado Warning	EAX	Platte	62 min
May 12, 12:43 AM CDT	Tornado Warning	EAX	Buchanan	62 min
May 12, 1:04 AM CDT	Severe Thunderstorm Warning	EAX	Ray	41 min
May 12, 1:45 AM CDT	Severe Thunderstorm Warning	EAX	Andrew, Buchanan	60 min

Nearby

Severe Thunderstorm Warnings in Missouri, 2000 Every severe thunderstorm warning in 2000

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.