Alert archive / Missouri / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 37, NWS St. Louis, MO

April 13, 1998Saint Francois County, Missouri

NWS St. Louis, MO issued this severe thunderstorm warning at Apr 13, 1998, 12:04 PM CDT for Saint Francois County, Missouri. It was in force for 56 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
Apr 13, 1998, 12:04 PM CDT (17:04 UTC)
Expired
Apr 13, 1998, 1:00 PM CDT
In force
56 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Saint Francois County, MO

The radar

The St Louis radar (KLSX), 101 km from the middle of the area, began a volume at 17:06 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

Lincoln, IL (KILX), launched 12:00Z, 5.1 hours before the alert went out and 306 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, Lincoln, IL at 12:00Z on 1998-04-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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, Lincoln, IL at 12:00Z on 1998-04-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 337 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1703 m above ground
0-6 km bulk shear
47 kt
0-1 km storm-relative helicity
337 m²/s²
0-3 km storm-relative helicity
313 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 131704 RRA
SVRSTL
MOC187-131800-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
1204 PM CDT MON APR 13 1998
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  100 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN EAST CENTRAL MISSOURI
 
   ...CENTRAL ST. FRANCOIS COUNTY
 
AT NOON...ST LOUIS DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM JUST
EAST OF BISMARK MISSOURI. THE STORM WAS MOVING TO THE NORTHEAST AT 45
MPH. HEAVY RAIN AND LARGE HAIL WITH STRONG AND GUSTY WINDS WILL
ACCOMPANY THIS STORM.  CITIES IN THE PATH OF THIS STORM ARE FARMINGTON
AND FLAT RIVER.
 
 
THIS STORM HAS A HISTORY OF DAMAGING HAIL. STAY INSIDE AND AWAY
FROM WINDOWS.

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, Apr 13, 10:40 AM CDT, 1 hour 24 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>075-084-085-099-132145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1040 AM CDT MON APR 13 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN ST LOUIS.  AREAS INCLUDED ARE PORTIONS OF
NORTHEAST...CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AS WELL AS
WEST CENTRAL AND SOUTHWEST ILLINOIS.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING ACROSS THE REGION AS A STRONG UPPER LEVEL DISTURBANCE MOVES
ACROSS MISSOURI.

STORM SPOTTER ACTIVATION MAY BE REQUIRED LATER TODAY ACROSS
PORTIONS OF EAST M4ISSOURI.

BECHTOLD
Special weather statement, Apr 13, 10:40 AM CDT, 1 hour 24 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>075-084-085-099-132145-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
1040 AM CDT MON APR 13 1998

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN ST LOUIS.  AREAS INCLUDED ARE PORTIONS OF
NORTHEAST...CENTRAL...EAST CENTRAL AND SOUTHEAST MISSOURI AS WELL AS
WEST CENTRAL AND SOUTHWEST ILLINOIS.

THERE IS A SLIGHT RISK OF SEVERE THUNDERSTORMS THIS AFTERNOON AND
EVENING ACROSS THE REGION AS A STRONG UPPER LEVEL DISTURBANCE MOVES
ACROSS MISSOURI.

STORM SPOTTER ACTIVATION MAY BE REQUIRED LATER TODAY ACROSS
PORTIONS OF EAST M4ISSOURI.

BECHTOLD

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 10:41 AM CDTSevere Thunderstorm WarningLSXFranklin49 min
Apr 13, 12:10 PM CDTSevere Thunderstorm WarningLSXSainte Genevieve50 min
Apr 13, 1:42 PM CDTSevere Thunderstorm WarningLSXBoone63 min
Apr 13, 1:56 PM CDTSevere Thunderstorm WarningLSXMonroe49 min
Apr 13, 2:19 PM CDTSevere Thunderstorm WarningLSXCallaway41 min
Apr 13, 2:48 PM CDTSevere Thunderstorm WarningLSXCrawford42 min
Apr 13, 2:57 PM CDTSevere Thunderstorm WarningLSXCallaway, Montgomery48 min
Apr 13, 3:05 PM CDTTornado WarningLSXCallaway, Montgomery40 min
Apr 13, 3:09 PM CDTTornado WarningLSXCrawford51 min
Apr 13, 3:19 PM CDTSevere Thunderstorm WarningLSXWarren41 min
Apr 13, 3:24 PM CDTTornado WarningLSXWashington51 min
Apr 13, 3:48 PM CDTSevere Thunderstorm WarningLSXCrawford42 min
Apr 13, 3:52 PM CDTTornado WarningLSXWarren53 min
Apr 13, 4:11 PM CDTTornado WarningLSXJefferson, Washington49 min
Apr 13, 4:16 PM CDTTornado WarningLSXSaint Charles44 min
Apr 13, 4:21 PM CDTSevere Thunderstorm WarningLSXLincoln54 min
Apr 13, 4:40 PM CDTTornado WarningLSXSaint Charles65 min
Apr 13, 4:45 PM CDTTornado WarningLSXSainte Genevieve, Saint Francois60 min
Apr 13, 4:54 PM CDTSevere Thunderstorm WarningLSXIron, Washington66 min
Apr 13, 4:54 PM CDTSevere Thunderstorm WarningLSXReynolds66 min
Apr 13, 5:19 PM CDTSevere Thunderstorm WarningLSXFranklin41 min
Apr 13, 5:36 PM CDTTornado WarningLSXSaint Louis54 min
Apr 13, 5:42 PM CDTTornado WarningLSXSainte Genevieve63 min
Apr 13, 5:50 PM CDTTornado WarningLSXCity of Saint Louis40 min
Apr 13, 5:56 PM CDTTornado WarningLSXJefferson49 min
Apr 13, 6:19 PM CDTTornado WarningLSXIron, Reynolds41 min
Apr 13, 6:32 PM CDTTornado WarningLSXMadison58 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.