Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 2, NWS St. Louis, MO

March 27, 1998Osage County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 27, 1998, 3:47 PM CST for Osage County, Missouri. It was in force for 43 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: Mar 27, 1998, 3:47 PM CST (21:47 UTC)
Expired: Mar 27, 1998, 4:30 PM CST
In force: 43 min
Issued by: NWS St. Louis, MO
Area: Whole counties

County Osage County, MO

The radar

The St Louis radar (KLSX), 106 km from the middle of the area, began a volume at 21:51 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
Mar 27, 4:01 PM CST	Thunderstorm Wind 50	Freeburg, MO	Wind gusts from a line of thunderstorms blew the camper off a pickup truck. A truck trailer was also damaged.

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
Mar 27, 2:00 PM CST	Tornado Watch	SPC	5 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 9.8 hours before the alert went out and 243 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: 14 J/kg
Mixed-layer CIN: -24 J/kg
Mixed-layer LCL: 1093 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 279 m²/s²
0-3 km storm-relative helicity: 329 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.

483 
WUUS1 KSTL 272146 RRA
SVRSTL
MOC019-027-051-151-272230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
347 PM CST FRI MAR 27 1998
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  430 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN CENTRAL MISSOURI
 
   ...EASTERN BOONE COUNTY...CALLAWAY COUNTY
   ...EASTERN COLE COUNTY...OSAGE COUNTY
 
AT 345 PM....WEATHER RADAR INDICATED A LINE OF SEVERE STORMS EXTENDING
FROM 20 MILES NORTHWEST OF COLUMIBA...THROUGH COLUMBIA AND JEFFERSON
CITY...TO NEAR ST THOMAS.
 
THE LINE WAS MOVING EAST AT 45 MPH...AND WILL BE AFFECTING THE COLUMBIA
AND JEFFERSON CITY AREAS...AS WELL AS LINN...FULTON...AND KINGDOM CITY.
 
WINDS OF 60 MPH CAN BE EXPECTED.
 
REMEMBER...A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.
IF OUTDOORS...SEEK INSIDE SHELTER IMMEDIATELY. STAY AWAY FROM
WINDOWS.

The office that day

Everything else NWS St. Louis, MO issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 27, 3:47 PM CST	Severe Thunderstorm Warning	LSX	Boone, Callaway, Cole	43 min
Mar 27, 4:02 PM CST	Severe Thunderstorm Warning	LSX	Crawford, Franklin, Washington	58 min
Mar 27, 4:02 PM CST	Severe Thunderstorm Warning	LSX	Iron, Reynolds	58 min
Mar 27, 4:10 PM CST	Severe Thunderstorm Warning	LSX	Montgomery, Warren	50 min
Mar 27, 4:40 PM CST	Severe Thunderstorm Warning	LSX	Franklin, Jefferson, Saint Charles, Saint Louis	50 min
Mar 27, 4:40 PM CST	Severe Thunderstorm Warning	LSX	Lincoln	50 min
Mar 27, 4:40 PM CST	Severe Thunderstorm Warning	LSX	City of Saint Louis	50 min
Mar 27, 4:53 PM CST	Severe Thunderstorm Warning	LSX	Pike	37 min
Mar 27, 4:57 PM CST	Severe Thunderstorm Warning	LSX	Iron, Reynolds, Washington	48 min
Mar 27, 5:26 PM CST	Severe Thunderstorm Warning	LSX	Saint Louis, City of Saint Louis	49 min
Mar 27, 5:26 PM CST	Severe Thunderstorm Warning	LSX	Saint Charles	49 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; radar from the NEXRAD Level II archive.