Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 21, NWS Kansas City, MO

April 13, 1998Lafayette County, Missouri

NWS Kansas City, MO issued this severe thunderstorm warning at Apr 13, 1998, 1:09 PM CDT for Lafayette County, Missouri. It was in force for 36 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 13, 1998, 1:09 PM CDT (18:09 UTC)
Expired: Apr 13, 1998, 1:45 PM CDT
In force: 36 min
Issued by: NWS Kansas City, MO
Area: Whole counties

County Lafayette County, MO

What was reported inside it

Time	Report	Where	Remark
Apr 13, 1:25 PM CDT	Hail 0.75	Higginsville, MO	Dime-size hail was reported during a severe thunderstorm in Higginsville.

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 13, 11:30 AM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

Topeka, KS (KTOP), launched 12:00Z, 6.2 hours before the alert went out and 160 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: 822 J/kg
Mixed-layer CIN: -160 J/kg
Mixed-layer LCL: 774 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 328 m²/s²
0-3 km storm-relative helicity: 401 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

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

160 
WUUS1 KMCI 131811 RRA
SVRMCI
MOC107-131855-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PLEASANT HILL/KANSAS CITY MO
109 PM CDT MON APR 13 1998

* SEVERE THUNDERSTORM WARNING FOR
    LAFAYETTE COUNTY - WEST CENTRAL MISSOURI

* UNTIL 145 PM CDT

* SOME LOCATIONS AFFECTED
    WELLINGTON BY 120 PM
    HIGGINSVILLE AROUND 140 PM

* AT 105 PM...WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE
THUNDERSTORM WEST OF NAPOLEON MOVING EAST AT 30 MPH.

PEOPLE IN THE PATH OF THIS STORM CAN EXPECT HAIL UP TO ONE AND HALF
INCHES IN DIAMETER.

SEVERE THUNDERSTORMS PRODUCE LARGE HAIL AND DAMAGING WINDS.  FOR
YOUR SAFETY...MOVE INDOORS AND STAY AWAY FROM WINDOWS.

VIRGILLITO

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 13, 3:38 AM CDT	Severe Thunderstorm Warning	EAX	Cass, Jackson	32 min
Apr 13, 4:10 AM CDT	Severe Thunderstorm Warning	EAX	Lafayette	40 min
Apr 13, 9:38 AM CDT	Severe Thunderstorm Warning	EAX	Lafayette	32 min
Apr 13, 10:58 AM CDT	Severe Thunderstorm Warning	EAX	Caldwell, Carroll, Livingston	62 min
Apr 13, 11:19 AM CDT	Severe Thunderstorm Warning	EAX	Jackson	61 min
Apr 13, 11:45 AM CDT	Severe Thunderstorm Warning	EAX	Clay, Ray	45 min
Apr 13, 12:49 PM CDT	Severe Thunderstorm Warning	EAX	Jackson	31 min
Apr 13, 1:02 PM CDT	Flash Flood Warning	EAX	Caldwell, Carroll, Livingston	4 hr
Apr 13, 2:34 PM CDT	Severe Thunderstorm Warning	EAX	Cooper, Howard	46 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1998 Every severe thunderstorm warning in 1998

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.