Alert archive / Missouri / Severe Thunderstorm Warnings in 2000

Severe Thunderstorm Warning 55, NWS Kansas City, MO

April 20, 2000Mercer County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Apr 20, 2000, 1:42 AM CDT for Mercer County, Missouri. It was in force for 48 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Apr 20, 2000, 1:42 AM CDT (06:42 UTC)
Expired: Apr 20, 2000, 2:30 AM CDT
In force: 48 min
Issued by: NWS Kansas City, MO
Area: Whole counties

County Mercer County, MO

What was reported inside it

Time	Report	Where	Remark
Apr 20, 1:49 AM CDT	Hail 1.75	Mercer, 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 19, 8:15 PM CDT	Tornado Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 00:00Z, 6.7 hours before the alert went out and 237 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: 1072 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 1917 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 130 m²/s²
0-3 km storm-relative helicity: 282 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 6.8

Open this sounding in Storm Lab

The text

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

000 
WUUS53 KEAX 200643
SVRMCI
MOC129-200730-

BULLETIN - EAS ACTIVATION REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE KANSAS CITY/PLEASANT HILL MO
142 AM CDT THU APR 20 2000

THE NATIONAL WEATHER SERVICE IN PLEASANT HILL HAS ISSUED A

* SEVERE THUNDERSTORM WARNING FOR...
  NORTHERN MERCER COUNTY IN NORTH CENTRAL MISSOURI

* UNTIL 230 AM CDT

* AT 142 AM CDT...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
  THUNDERSTORM 6 MILES SOUTHEAST OF SOUTH LINEVILLE...OR 18 MILES
  SOUTHWEST OF SEYMOUR...MOVING NORTHEAST AT 50 MPH.

OTHER LOCATIONS IN THE WARNING INCLUDE SALINE...RAVANNA...PRINCETON
AND MERCER.

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.

IF SEVERE WEATHER APPROACHES YOUR AREA...GO INSIDE A STURDY SHELTER
AWAY FROM CREEK BEDS AND OTHER FLOOD PRONE AREAS. REMEMBER...A SEVERE
THUNDERSTORM CAN PRODUCE LARGE DAMAGING HAIL...DAMAGING WINDS IN
EXCESS OF 60 MPH...DEADLY LIGHTNING...AND VERY HEAVY RAIN.

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 19, 7:18 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Platte	42 min
Apr 19, 7:53 PM CDT	Severe Thunderstorm Warning	EAX	Daviess, DeKalb	67 min
Apr 19, 8:01 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan, Clinton	59 min
Apr 19, 8:37 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	38 min
Apr 19, 8:44 PM CDT	Severe Thunderstorm Warning	EAX	Daviess, Grundy, Harrison	61 min
Apr 19, 8:49 PM CDT	Severe Thunderstorm Warning	EAX	Cass	56 min
Apr 19, 9:06 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	39 min
Apr 19, 9:21 PM CDT	Severe Thunderstorm Warning	EAX	Lafayette	54 min
Apr 19, 9:26 PM CDT	Severe Thunderstorm Warning	EAX	Mercer, Putnam, Sullivan	64 min
Apr 19, 9:44 PM CDT	Severe Thunderstorm Warning	EAX	Grundy, Sullivan	46 min
Apr 19, 9:49 PM CDT	Severe Thunderstorm Warning	EAX	Carroll, Saline	56 min
Apr 19, 10:19 PM CDT	Severe Thunderstorm Warning	EAX	Lafayette	26 min
Apr 19, 10:25 PM CDT	Severe Thunderstorm Warning	EAX	Adair, Sullivan	65 min
Apr 19, 10:41 PM CDT	Severe Thunderstorm Warning	EAX	Schuyler	49 min
Apr 19, 10:47 PM CDT	Severe Thunderstorm Warning	EAX	Carroll	28 min
Apr 19, 11:39 PM CDT	Severe Thunderstorm Warning	EAX	Platte	36 min
Apr 19, 11:42 PM CDT	Severe Thunderstorm Warning	EAX	Buchanan	48 min
Apr 19, 11:56 PM CDT	Severe Thunderstorm Warning	EAX	Andrew, DeKalb	49 min
Apr 20, 12:10 AM CDT	Severe Thunderstorm Warning	EAX	Gentry, Harrison	80 min
Apr 20, 1:34 AM CDT	Severe Thunderstorm Warning	EAX	Johnson, Lafayette, Pettis, Saline	71 min
Apr 20, 1:57 AM CDT	Severe Thunderstorm Warning	EAX	Chariton	48 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; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.