Alert archive / Missouri / Severe Thunderstorm Warnings in 2002

Severe Thunderstorm Warning 95, NWS Kansas City, MO

May 6, 2002Jackson County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at May 6, 2002, 11:29 PM CDT for Jackson County, Missouri. It was in force for 61 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, 11:29 PM CDT (04:29 UTC)
Expired: May 7, 2002, 12:30 AM CDT
In force: 61 min
Issued by: NWS Kansas City, MO
Area: Counties, with a storm outline in the text

County Jackson County, MO

The radar

The Pleasant Hill radar (KEAX), 31 km from the middle of the area, began a volume at 04:31 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, 11:45 PM CDT	Thunderstorm Wind 61 E	Lees Summit, 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, 4.5 hours before the alert went out and 112 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 070429
SVRMCI
MOC095-070530-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
1128 PM CDT MON MAY 6 2002

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

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

* UNTIL 1230 AM CDT

* AT 1126 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  SEVERE THUNDERSTORM CAPABLE OF PRODUCING DIME SIZE HAIL...AND
  DESTRUCTIVE WINDS IN EXCESS OF 60 MPH.  THIS STORM WAS LOCATED NEAR
  KANSAS CITY...AND MOVING EAST AT 35 MPH.

* THE SEVERE THUNDERSTORM WILL BE NEAR...
   LEES SUMMIT BY 1135 PM CDT.
   INDEPENDENCE...GREENWOOD BY 1140 PM CDT.
   BLUE SPRINGS BY 1145 PM CDT.
   GRAIN VALLEY...LAKE LOTAWANA BY 1150 PM CDT.
   BUCKNER...SIBLEY...LONE JACK BY 1155 PM CDT.
   LEVASY...OAK GROVE BY MIDNIGHT CDT.

THE TOWNS OF SUGAR CREEK AND LAKE TAPAWINGO ARE ALSO IN THE PATH OF
THIS STORM.

LAT...LON 3923 9426 3916 9413 3884 9413 3885 9460
          3916 9462 3912 9446

SF

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, 10:20 PM CDT	Severe Thunderstorm Warning	EAX	Lafayette	55 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, 11:31 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.