Alert archive / Illinois / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 124, NWS St. Louis, MO

June 25, 1997Pike County, Illinois

NWS St. Louis, MO issued this severe thunderstorm warning at Jun 25, 1997, 2:39 PM CDT for Pike County, Illinois. It was in force for 51 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
Jun 25, 1997, 2:39 PM CDT (19:39 UTC)
Expired
Jun 25, 1997, 3:30 PM CDT
In force
51 min
Issued by
NWS St. Louis, MO
Area
Whole counties

County Pike County, IL

The radar

The St Louis radar (KLSX), 104 km from the middle of the area, began a volume at 19:38 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, 7.7 hours before the alert went out and 204 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 1997-06-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 480 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 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 1997-06-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 0 square meters per square second.1939Sfc1 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
480 J/kg
Mixed-layer CIN
-103 J/kg
Mixed-layer LCL
1333 m above ground
0-6 km bulk shear
0 kt
0-1 km storm-relative helicity
0 m²/s²
0-3 km storm-relative helicity
0 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.

796 
WUUS1 KSTL 251941 RRA
SVRSTL
ILC149-252030-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE ST LOUIS MO
239 PM CDT WED JUN 25 1997
 
THE NATIONAL WEATHER SERVICE IN ST LOUIS HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  330 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN WEST CENTRAL ILLINOIS
 
   ...PIKE COUNTY
 
AT 240 PM...NATIONAL WEATHER SERVICE RADAR INDICATED A SEVERE
THUNDERSTORM 10 MILES WEST OF PITTSFIELD.
 
THE STORM WAS MOVING TO THE EAST AT 10 TO 15 MPH.
 
THE TOWNS OF BARRY AND GRIGGSVILLE ARE IN THE PATH OF THIS STORM.
 
THIS IS A DANGEROUS STORM BE PREPARED FOR DAMAGING WINDS...HAIL
AND DEADLY LIGHTNING. STAY INSIDE AND AWAY FROM WINDOWS.
 
AMS/ST

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, Jun 25, 11:45 AM CDT, 2 hours 54 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>075-084-085-099-261000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
1145 AM CDT WED JUN 25 1997

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN ST LOUIS.  AREAS INCLUDED ARE PARTS OF
CENTRAL...NORTHEAST AND EAST CENTRAL MISSOURI...AND EXTREME SOUTHWEST
ILLINOIS.

THERE IS A CHANCE FOR THUNDERSTORMS ACROSS THE AREA THIS AFTERNOON AND
TONIGHT.   AT THIS TIME...IT APPEARS THEY WILL BE BELOW SEVERE LIMITS.
HOWEVER...LOCALLY HEAVY RAIN IS POSSIBLE ACROSS THE COUNTY WARNING AREA
LATE THIS AFTERNOON AND TONIGHT.

GKS
Special weather statement, Jun 25, 11:52 AM CDT, 2 hours 47 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>075-084-085-099-261000-

SEVERE WEATHER OUTLOOK
NATIONAL WEATHER SERVICE ST LOUIS MO
1145 AM CDT WED JUN 25 1997

THIS OUTLOOK COVERS THE COUNTY WARNING AREA OF THE NATIONAL WEATHER
SERVICE FORECAST OFFICE IN ST LOUIS.  AREAS INCLUDED ARE PARTS OF
CENTRAL...NORTHEAST AND EAST CENTRAL MISSOURI...AND EXTREME SOUTHWEST
ILLINOIS.

THERE IS A CHfANCE FOR THUNDERSTORMS ACROSS THE AREA THIS AFTERNOON AND
TONIGHT.   AT THIS TIME...IT APPEARS THEY WILL BE BELOW SEVERE LIMITS.
HOWEVER...LOCALLY HEAVY RAIN IS POSSIBLE ACROSS THE COUNTY WARNING AREA
LATE THIS AFTERNOON AND TONIGHT.

GKS

Nearby

Severe Thunderstorm Warnings in Illinois, 1997Every severe thunderstorm warning in 1997

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.