Alert archive / Illinois / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 17, NWS St. Louis, MO

March 27, 1998Randolph County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Mar 27, 1998, 8:02 PM CST for Randolph County, Illinois. It was in force for 28 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, 8:02 PM CST (02:02 UTC)
Expired
Mar 27, 1998, 8:30 PM CST
In force
28 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Randolph County, IL

The radar

The St Louis radar (KLSX), 104 km from the middle of the area, began a volume at 02:04 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

Lincoln, IL (KILX), launched 00:00Z, 2.0 hours before the alert went out and 256 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 00:00Z on 1998-03-28Temperature 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 00:00Z on 1998-03-28The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 223 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1945 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
223 m²/s²
0-3 km storm-relative helicity
290 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 280201 RRA
SVRSTL
ILC157-280230-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
802 PM CST FRI MAR 27 1998
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  830 PM CST
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN SOUTHWEST ILLINOIS
 
   ...SOUTHERN RANDOLPH COUNTY
 
AT 8 PM....WEATHER SERVICE RADAR INDICATED A SEVERE THUNDERSTORM ALONG
THE MISSISSIPPI RIVER NEAR CHESTER.
 
THE STORM WAS MOVING NORTHEAST AT 40 MPH.  STEELVILLE IS ALSO IN THE
PATH OF THIS STORM.
 
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, 5:45 PM CST, 2 hours 17 minutes before
MOZ036-052-060-062-072-073-084-099-280200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
545 PM CST FRI MAR 27 1998

...THE TORNADO WATCH HAS BEEN CANCELLED FOR A PORTION OF EASTERN
MISSOURI...

THE THREAT OF STRONG DAMAGING WINDS AND SEVERE WEATHER HAS PASSED
TO THE EAST OF THE REGION...THEREFORE THE TORNADO WATCH HAS BEEN
CANCELLED.  SHOWERS WILL CONTINUE THIS EVENING WITH GUSTY SOUTHERLY
WINDS.

THE TORNADO WATCH HAS BEEN CANCELLED FOR PIKE...LINCOLN...WARREN...
FARNKLIN...CRAWFORD...WASHINGTON...IRON...AND REYNOLDS COUNTIES.

TPS
Special weather statement, Mar 27, 5:45 PM CST, 2 hours 17 minutes before
MOZ036-052-060-062-072-073-084-099-280200-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
545 PM CST FRI MAR 27 1998

...THE TORNADO WATCH HAS BEEN CANCELLED FOR A PORTION OF EASTERN
MISSOURI...

THE THREAT OF STRONG DAMAGING WINDS AND SEVERE WEATHER HAS PASSED
TO THE EAST OF THE REGION...THEREFORE THE TORNADO WATCH HAS BEEN
CANCELLED.  SHOWERS WILL CONTINUE THIS EVENING WITH GUSTY SOUTHERLY
WINDS.

THE TORNADO WATCH HAS BEEN CANCELLED FOR PIKE...LINCOLN...WARREN...
FARNKLIN...CRAWFORD...WASHINGTON...IRON...AND REYNOLDS COUNTIES.

TPS
Special weather statement, Mar 27, 6:15 PM CST, 1 hour 47 minutes before
ILZ098-MOZ061-063>065-074-075-085-280300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
615 PM CST FRI MAR 27 1998

...THE TORNADO WATCH HAS BEEN CANCELLED FOR A PORTION OF EASTERN
MISSOURI...

THE THREAT OF STRONG DAMAGING WINDS AND SEVERE WEATHER HAS PASSED
TO THE EAST OF THE REGION...THEREFORE THE TORNADO WATCH HAS BEEN
CANCELLED.  SHOWERS WILL CONTINUE THIS EVENING WITH GUSTY SOUTHERLY
WINDS.

THE TORNADO WATCH HAS BEEN CANCELLED FOR ST CHARLES...ST LOUIS...
JEFFERSON...ST FRANCOIS...STE GENEVIEVE...AND MADISON COUNTIES IN
MISSOURI ALONG WITH ST LOUIS CITY AND CALHOUN COUNTY ILLINOIS.

TPS
Special weather statement, Mar 27, 6:15 PM CST, 1 hour 47 minutes before
ILZ098-MOZ061-063>065-074-075-085-280300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
615 PM CST FRI MAR 27 1998

...THE TORNADO WATCH HAS BEEN CANCELLED FOR A PORTION OF EASTERN
MISSOURI...

THE THREAT OF STRONG DAMAGING WINDS AND SEVERE WEATHER HAS PASSED
TO THE EAST OF THE REGION...THEREFORE THE TORNADO WATCH HAS BEEN
CANCELLED.  SHOWERS WILL CONTINUE THIS EVENING WITH GUSTY SOUTHERLY
WINDS.

THE TORNADO WATCH HAS BEEN CANCELLED FOR ST CHARLES...ST LOUIS...
JEFFERSON...ST FRANCOIS...STE GENEVIEVE...AND MADISON COUNTIES IN
MISSOURI ALONG WITH ST LOUIS CITY AND CALHOUN COUNTY ILLINOIS.

TPS
Special weather statement, Mar 27, 7:15 PM CST, 47 minutes before
ILZ058>060-064-065-069-070-074-079-099>102-280300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
715 PM CST FRI MAR 27 1998

...THE TORNADO WATCH HAS BEEN CANCELLED FOR A PORTION OF SOUTHWEST
ILLINOIS...

THE THREAT OF STRONG DAMAGING WINDS AND SEVERE WEATHER HAS DIMINISHED
ACROSS THE REGION...THEREFORE THE TORNADO WATCH HAS BEEN CANCELLED.
SHOWERS WILL CONTINUE THIS EVENING WITH GUSTY SOUTHERLY WINDS.

THE TORNADO WATCH HAS BEEN CANCELLED FOR GREENE...JERSEY...
MADISON...ST CLAIR...MONROE...RANDOLPH...MACOUPIN...MONTGOMERY...
BOND...CLINTON...WASHINGTON...FAYETTE...AND MARION COUNTIES IN
ILLINOIS.

TPS
Special weather statement, Mar 27, 7:15 PM CST, 47 minutes before
ILZ058>060-064-065-069-070-074-079-099>102-280300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE ST LOUIS MO
715 PM CST FRI MAR 27 1998

...THE TORNADO WATCH HAS BEEN CANCELLED FOR A PORTION OF SOUTHWEST
ILLINOIS...

THE THREAT OF STRONG DAMAGING WINDS AND SEVERE WEATHER HAS DIMINISHED
ACROSS THE REGION...THEREFORE THE TORNADO WATCH HAS BEEN CANCELLED.
SHOWERS WILL CONTINUE THIS EVENING WITH GUSTY SOUTHERLY WINDS.

THE TORNADO WATCH HAS BEEN CANCELLED FOR GREENE...JERSEY...
MADISON...ST CLAIR...MONROE...RANDOLPH...MACOUPIN...MONTGOMERY...
BOND...CLINTON...WASHINGTON...FAYETTE...AND MARION COUNTIES IN
ILLINOIS.

TPS

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 27, 6:39 PM CSTSevere Thunderstorm WarningLSXBond, Montgomery51 min
Mar 27, 10:46 PM CSTTornado WarningLSXRandolph29 min
Mar 28, 2:14 AM CSTSevere Thunderstorm WarningLSXGreene16 min

Nearby

Severe Thunderstorm Warnings in Illinois, 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.