Alert archive / Illinois / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 40, NWS Lincoln, IL

June 16, 1994Mason County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 16, 1994, 6:05 PM CDT for Mason County, Illinois. It was in force for 55 min.

The area

The counties it named.

The facts

Issued
Jun 16, 1994, 6:05 PM CDT (23:05 UTC)
Expired
Jun 16, 1994, 7:00 PM CDT
In force
55 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Mason County, IL

The nearest sounding before it

Paducah/Barkley, KY (KPAH), launched 12:00Z, 11.1 hours before the alert went out and 368 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, Paducah/Barkley, KY at 12:00Z on 1994-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1424 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, Paducah/Barkley, KY at 12:00Z on 1994-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -4 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
1424 J/kg
Mixed-layer CIN
-73 J/kg
Mixed-layer LCL
1194 m above ground
0-6 km bulk shear
11 kt
0-1 km storm-relative helicity
-4 m²/s²
0-3 km storm-relative helicity
20 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 
WUUS1 KPIA 162306 RRA
SVRPIA
ILC125-170000-
 
BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING
NATIONAL WEATHER SERVICE PEORIA IL
605 PM CDT THU JUN 16 1994
 
THE NATIONAL WEATHER SERVICE IN PEORIA HAS ISSUED A
SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL  700 PM CDT
FOR PEOPLE IN THE FOLLOWING LOCATION...
 
IN CENTRAL ILLINOIS
 
   ...MASON COUNTY
 
AT 605 PM CDT...RADAR INDICATED A SEVERE THUNDERSTORM NEAR THE TOWN OF
BIGGS...IN CENTRAL MASON COUNTY. THIS STORM IS MOVING TO THE NORTH
NORTHEAST AT 15 MPH AND WILL AFFECT THE TOWNS OF EASTON AND TEHERAN BY
620 PM AND MASON CITY BY 640 PM.
 
 
WHEN THUNDERSTORMS ARE OCCURRING...MOVE INSIDE A STRONG BUILDING.
 
WATERHOUSE

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 16, 4:37 PM CDT, 1 hour 28 minutes before
ILZ047-050-162245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
436 PM CDT THU JUN 16 1994

...STRONG THUNDERSTORMS MOVING THROUGH NORTHERN MORGAN COUNTY...

AT 430 PM CDT...WEATHER RADAR FROM SPRINGFIELD SHOWED A STRONG
THUNDERSTORM IN NORTHERN MORGAN COUNTY...ABOUT 10 MILES NORTHWEST OF
JACKSONVILLE OR 35 MILES WEST OF SPRINGFIELD.  THIS STORM IS MOVING TO
THE NORTH AT 15 MPH...AND WILL AFFECT WESTERN AND CENTRAL PORTIONS OF
CASS COUNTY THROUGH 5 PM.

THIS STORM IS CAPABLE OF PRODUCING RAINFALL AMOUNTS OF OVER AN INCH IN
ONLY 15 OR 20 MINUTES.  SMALL HAIL IS ALSO POSSIBLE WITH THIS STORM.

STAY TUNED TO YOUR FAVORITE WEATHER INFORMATION SOURCE FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

CWG
Special weather statement, Jun 16, 5:00 PM CDT, 1 hour 5 minutes before
ILZ036-041-162305-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
500 PM CDT THU JUN 16 1994

...STRONG THUNDERSTORMS MOVING INTO SOUTHERN MASON COUNTY...

AT 500 PM CDT...RADAR INDICATED A STRONG THUNDERSTORM MOVING INTO
SOUTHERN MASON COUNTY. THIS STORM IS MOVING TO THE NORTH AT 15 MPH AND
WILL AFFECT THE TOWNS OF BATH BY 520 PM AND HAVANA BY 545 PM.

AT SIGNS OF AN IMPENDING STORM...MOVE TO A PLACE OF SAFETY.

WATERHOUSE
Special weather statement, Jun 16, 5:02 PM CDT, 1 hour 3 minutes before
ILZ036-041-162305-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
500 PM CDT THU JUN 16 1994

...STRONG THUNDERSTORMS MOVING INTO SOUTHERN MASON COUNTY...

AT 500 PM CDT...RADAR INDICATED $A STRONG THUNDERSTORM MOVING INTO
SOUTHERN MASON COUNTY. THIS STORM IS MOVING TO THE NORTH AT 15 MPH AND
WILL AFFECT THE TOWNS OF BATH BY 520 PM AND HAVANA BY 545 PM.

AT SIGNS OF AN IMPENDING STORM...MOVE TO A PLACE OF SAFETY.

WATERHOUSE
Special weather statement, Jun 16, 5:12 PM CDT, 53 minutes before
ILZ047-048-162245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
510 PM CDT THU JUN 16 1994

...STRONG THUNDERSTORMS WERE LOCATED NORTHWEST OF SPRINGFIELD...

AT 505 PM CDT...WEATHER RADAR FROM SPRINGFIELD SHOWED STRONG
THUNDERSTORMS NORTHWEST OF SPRINGFIELD...ACROSS EASTERN CASS AND
EXTREME SOUTHWEST MENARD COUNTY.  THESE STORMS ARE MOVING TO THE
NORTH AT 20 MPH...AND WILL AFFECT EASTERN CASS AND WESTERN MENARD
COUNTIES THROUGH 545 PM.

THESE STORMS ARE CAPABLE OF PRODUCING RAINFALL AMOUNTS OF OVER AN
INCH IN ONLY 15 OR 20 MINUTES...ALONG WITH DANGEROUS LIGHTNING.
SMALL HAIL AND GUSTY WINDS MAY ALSO ACCOMPANY THESE STORMS.

STAY TUNED TO YOUR FAVORITE WEATHER INFORMATION SOURCE FOR LATER
STATEMENTS AND POSSIBLE WARNINGS.

CWG

Nearby

Severe Thunderstorm Warnings in Illinois, 1994Every severe thunderstorm warning in 1994

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.