Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 4, NWS St. Louis, MO

March 27, 1998Iron County, Reynolds County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 27, 1998, 4:02 PM CST for Iron County, Reynolds County, Missouri. It was in force for 58 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 27, 1998, 4:02 PM CST (22:02 UTC)
Expired
Mar 27, 1998, 5:00 PM CST
In force
58 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Iron County, MO, Reynolds County, MO

The radar

The St Louis radar (KLSX), 141 km from the middle of the area, began a volume at 22:03 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 nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 10.0 hours before the alert went out and 270 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-pSkew-T log-p diagram, Springfield, MO at 12:00Z on 1998-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 14 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Springfield, MO at 12:00Z on 1998-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 279 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
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.

660 
WUUS1 KSTL 272201 RRA
SVRSTL
MOC055-071-221-093-179-272300-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
402 PM CST FRI MAR 27 1998
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  500 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MISSOURI
 
   ...CRAWFORD COUNTY...WESTERN FRANKLIN COUNTY
   ...WASHINGTON COUNTY
 
IN SOUTHEAST MISSOURI
 
   ...IRON COUNTY...REYNOLDS COUNTY
 
AT 4 PM...WEATHER SERVICE RADAR INDICATED A LINE OF SEVERE THUNDERSTORMS
EXTENDING FROM 10 MILES NORTH OF COLUMBIA...TO 10 MILES EAST OF
JEFFERSON CITY...TO ABOUT 30 MILES SOUTHEAST OF FORT LEONARD WOOD.
 
THE LINE WAS MOVING EAST AT 45 MPH.  TOWNS IN THE PATH OF THIS STORM
INCLUDE STEELVILLE...OWENSVILLE...GERALD...CENTERVILLE...POTOSI...
BIXBY...AND IRONTON.
 
WINDS IN EXCESS OF 70 MPH CAN BE EXPECTED WITH THE PASSAGE OF THESE
STORMS.
 
THIS STORM HAS A HISTORY OF DAMAGING WINDS. SEEK INSIDE SHELTER
NOW
 
REMEMBER...A TORNADO WATCH IS ALSO IN EFFECT FOR THE WARNED AREA.
IF OUTDOORS...SEEK INSIDE SHELTER IMMEDIATELY. STAY AWAY FROM
WINDOWS.
 
TRUETT/RP

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 3:47 PM CSTSevere Thunderstorm WarningLSXBoone, Callaway, Cole43 min
Mar 27, 3:47 PM CSTSevere Thunderstorm WarningLSXOsage43 min
Mar 27, 4:02 PM CSTSevere Thunderstorm WarningLSXCrawford, Franklin, Washington58 min
Mar 27, 4:10 PM CSTSevere Thunderstorm WarningLSXMontgomery, Warren50 min
Mar 27, 4:40 PM CSTSevere Thunderstorm WarningLSXFranklin, Jefferson, Saint Charles, Saint Louis50 min
Mar 27, 4:40 PM CSTSevere Thunderstorm WarningLSXLincoln50 min
Mar 27, 4:40 PM CSTSevere Thunderstorm WarningLSXCity of Saint Louis50 min
Mar 27, 4:53 PM CSTSevere Thunderstorm WarningLSXPike37 min
Mar 27, 4:57 PM CSTSevere Thunderstorm WarningLSXIron, Reynolds, Washington48 min
Mar 27, 5:26 PM CSTSevere Thunderstorm WarningLSXSaint Louis, City of Saint Louis49 min
Mar 27, 5:26 PM CSTSevere Thunderstorm WarningLSXSaint Charles49 min

Nearby

Severe Thunderstorm Warnings in Missouri, 1998Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.