Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 10, NWS St. Louis, MO

March 27, 1998Iron County, Reynolds County, Washington County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 27, 1998, 4:57 PM CST for Iron County, Reynolds County, Washington County, Missouri. It was in force for 48 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, 4:57 PM CST (22:57 UTC)
Expired
Mar 27, 1998, 5:45 PM CST
In force
48 min
Issued by
NWS St. Louis, MO
Area
Whole counties

Counties Iron County, MO, Reynolds County, MO, Washington County, MO

The radar

The St Louis radar (KLSX), 122 km from the middle of the area, began a volume at 23:00 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Mar 27, 4:30 PM CSTTornado WatchSPC6 hr

The nearest sounding before it

Springfield, MO (KSGF), launched 12:00Z, 11.0 hours before the alert went out and 273 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°0°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.

000 
TTAA00 KSTL 272257 RRA
SVRSTL
MOC221-093-179-272345-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
457 PM CST FRI MAR 27 1998
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  545 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATIONS...
 
IN EAST CENTRAL MISSOURI
 
   ...WASHINGTON COUNTY
 
IN SOUTHEAST MISSOURI
 
   ...IRON COUNTY...REYNOLDS COUNTY
 
THIS IS AN EXTENSION OF A PREVIOUS SEVERE THUNDERSTORM WARNING.
 
AT 455 PM...A LINE OF SEVERE THUNDERSTORMS EXTENDED FROM NEAR SULLIVAN
TO NEAR BUNKER...IN WESTERN REYNOLDS COUNTY.
 
THE LINE WAS MOVING EAST-NORTHEAST AT 40 MPH.  TOWNS IN THE PATH OF THE
STORM INCLUDE CENTERVILLE....POTOSI...AND IRONTON.
 
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

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

In the hours before

Special weather statement, Mar 27, 2:00 PM CST, 2 hours 57 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-
026-027-034>036-041-042-047>052-059>065-072>075-084-085-099-280255-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
200 PM CST FRI MAR 27 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE ST LOUIS OFFICE
OF THE NATIONAL WEATHER SERVICE.  THIS INCLUDES PARTS OF
CENTRAL...NORTHEAST...EAST CENTRAL...AND SOUTHEAST MISSOURI...AND
ADJACENT AREAS OF WEST CENTRAL AND SOUTHWEST ILLINOIS.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE AREA THIS
AFTERNOON AND EARLY TONIGHT.

STORM SPOTTERS AND EMERGENCY MANAGERS SHOULD MONITOR WEATHER
DEVELOPMENTS FOR POSSIBLE SKYWARN ACTIVATION.

TRUETT
Special weather statement, Mar 27, 2:00 PM CST, 2 hours 57 minutes before
ILZ058>060-064-065-069-070-074-079-095>102-MOZ009-010-018-019-
026-027-034>036-041-042-047>052-059>065-072>075-084-085-099-280255-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
200 PM CST FRI MAR 27 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE ST LOUIS OFFICE
OF THE NATIONAL WEATHER SERVICE.  THIS INCLUDES PARTS OF
CENTRAL...NORTHEAST...EAST CENTRAL...AND SOUTHEAST MISSOURI...AND
ADJACENT AREAS OF WEST CENTRAL AND SOUTHWEST ILLINOIS.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS OVER THE AREA THIS
AFTERNOON AND EARLY TONIGHT.

STORM SPOTTERS AND EMERGENCY MANAGERS SHOULD MONITOR WEATHER
DEVELOPMENTS FOR POSSIBLE SKYWARN ACTIVATION.

TRUETT

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, 4:02 PM CSTSevere Thunderstorm WarningLSXIron, Reynolds58 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, 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.