Alert archive / Illinois / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 2, NWS Lincoln, IL

March 23, 1994Vermilion County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Mar 23, 1994, 9:24 PM CST for Vermilion County, Illinois. It was in force for 27 min.

The area

The counties it named.

The facts

Issued
Mar 23, 1994, 9:24 PM CST (03:24 UTC)
Expired
Mar 23, 1994, 9:51 PM CST
In force
27 min
Issued by
NWS Lincoln, IL
Area
Whole counties

County Vermilion County, IL

The nearest sounding before it

Dayton/James M C, OH (KDAY), launched 00:00Z, 3.4 hours before the alert went out and 302 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, Dayton/James M C, OH at 00:00Z on 1994-03-24Temperature 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, Dayton/James M C, OH at 00:00Z on 1994-03-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 136 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
3250 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
136 m²/s²
0-3 km storm-relative helicity
314 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 KSPI 240324
SVRSPI
ILC183-240400-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE SPRINGFIELD IL
924 PM CST WED MAR 23 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 1000 PM CST FOR PEOPLE IN THE FOLLOWING 
COUNTY

   IN THE EAST CENTRAL PART OF ILLINOIS
      SOUTHERN VERMILION

AT 919 PM CST...VERMILION COUNTY ESDA REPORTED GOLFBALL SIZED HAIL
AT OAKWOOD.

THE STORM WAS LOCATED FROM 8 MILES WEST TO 15 MILE SOUTHWEST OF
DANVILLE AND WAS MOVING TO THE EAST NORTHEAST AT 35 MPH.

THE STORM WILL MOVE THROUGH THE FOLLOWING TOWNS...CATLIN...
WESTVILLE...RIDGE FARM AND DANVILLE.

SEVERE THUNDERSTORMS PRODUCE DAMAGING WINDS IN EXCESS OF 55 MPH...
HAIL 3/4 INCH OR LARGER...DEADLY LIGHTNING AND VERY HEAVY RAIN.
FOR YOUR PROTECTION...MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR
AND STAY AWAY FROM WINDOWS.

BYRD

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 23, 7:05 PM CST, 2 hours 19 minutes before
ILZ037-041-240205-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
703 PM CST WED MAR 23 1994

...STRONG THUNDERSTORMS DEVELOPING OVER THE AREA...

AT 700 PM...STRONG THUNDERSTORMS WERE BEGINNING TO DEVELOP OVER
NORTHERN MASON AND EASTERN TAZEWELL COUNTIES. THESE THUNDERSTORMS ARE
MOVING TO THE NORTHEAST AT 15 TO 20 MPH AND WILL AFFECT THE TOWNS OF
MACKINAW AND DELAVAN...IN TAZEWELL COUNTY...BY 730 PM.

HIGH WINDS...FREQUENT LIGHTNING AND HAIL MAY ACCOMPANY THESE STORMS.

WATERHOUSE
Special weather statement, Mar 23, 7:43 PM CST, 1 hour 41 minutes before
ILZ0042>048-050>057-059>063-240245-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
743 PM CST WED MAR 24 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 1 AM CST...

AT 740 PM CST...RADAR INDICATED STRONG THUNDERSTORMS OVER CENTRAL
ILLINOIS.  THE STRONGEST STORM WAS LOCATED 30 MILES SOUTH OF
SPRINGFIELD...NEAR HILLSBORO AND MORRISONVILLE.  ANOTHER STORM WAS
LOCATED 25 MILES NORTHEAST OF SPRINGFIELD...NEAR LINCOLN.  THE STORMS
WERE MOVING TO THE NORTHEAST AT 35 TO 40 MILES AN HOUR.

MORE STORMS MAY DEVELOP OVER THE AREA LATER THIS EVENING...SO BE
PREPARED FOR HEAVY RAIN...HAIL...DAMAGING WINDS AND DEADLY
LIGHTNING WITH THE PASSAGE OF THESE STORMS.

BYRD
Special weather statement, Mar 23, 7:51 PM CST, 1 hour 33 minutes before
ILZ017-018-025>031-034>038-040-041-240300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
750 PM CST WED MAR 23 1994

...A SEVERE THUNDERSTORM WATCH IS IN EFFECT FOR CENTRAL ILLINOIS UNTIL
100 AM THIS MORNING...

AT 745 PM CST...ONLY LIGHT RAIN WAS DETECTED OVER PORTIONS OF WOODFORD
COUNTY. THIS PRECIPITATION IS MOVING TO THE NORTHEAST AT 15 TO 20 MPH.

ALTHOUGH THERE ARE PRESENTLY NO THUNDERSTORMS IN THE WATCH AREA...
CONDITIONS ARE FAVORABLE FOR THE DEVELOPMENT OF THUNDERSTORMS. STAY
TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO AND T.V. STATIONS FOR
LATER STATEMENTS AND POSSIBLE WARNINGS.

WATERHOUSE
Special weather statement, Mar 23, 8:25 PM CST, 59 minutes before
ILZ0042>048-050>057-059>063-240300-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
825 PM CST WED MAR 24 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 1 AM CST...

AT 800 PM CST...A SPOTTER IN MORRISONVILLE...29 MILES SOUTHEAST OF
SPRINGFIELD REPORTED HALF INCH HAIL AND HEAVY RAIN.

AT 820 PM CST...RADAR INDICATED A VERY STRONG THUNDERSTORM LOCATED
30 MILES SOUTHEAST OF SPRINGFIELD...JUST EAST OF MORRISONVILLE.  ALSO
...ANOTHER STRONG STORM WAS LOCATED 20 MILES SOUTHWEST OF DECATUR...
NEAR TAYLORVILLE.  OTHER STORMS WERE LOCATED FROM JUST WEST OF
CHAMPAIGN TO 25 MILES NORTHWEST OF CHAMPAIGN.  THE STORMS WERE MOVING
TO THE NORTHEAST AT 35 TO 40 MPH.

MORE STORMS MA&Y DEVELOP OVER THE AREA LATER THIS EVENING...SO BE
PREPARED FOR HEAVY RAIN...HAIL...DAMAGING WINDS AND DEADLY LIGHTNING
WITH THE PASSAGE OF THESE STORMS.

BYRD
Special weather statement, Mar 23, 9:08 PM CST, 16 minutes before
ILZ0042>048-050>057-059>063-240345-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
905 PM CST WED MAR 24 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 1 AM CST...

AT 826 PM CST...A ILLINOIS STATE PATROL OFFICER REPORTED PEA SIZED HAIL
NEAR MANSFIELD...IN NORTHERN PIATT COUNTY.

AT 900 PM CST...RADAR INDICATED A LINE OF SHOWERS AND THUNDERSTORMS
WHICH EXTENDED FROM 30 MILES NORTHEAST OF CHAMPAIGN TO 5 MILES EAST OF
CHAMPAIGN TO 20 MILES SOUTHEAST OF DECATUR TO 25 MILES SOUTH OF DECATUR.
THE STRONGEST STORM WAS LOCATED 18 MILES SOUTHEAST OF CHAMPAIGN...JUST
NORTH OF VILLA GROVE.  ALSO...ANOTHER STRONG STORM WAS LOCATED 45 MILES
SOUTHEAST OF DECATUR...NEAR NEOGA.  THE STORMS WERE MOVING TO THE
NORTHEAST AT 35 MILES AN HOUR.

MORE STORMS MAY DEVELOP OVER THE AREA THROUGH MIDNIGHT...SO BE
PREPARED FOR HEAVY RAIN...HAIL...DAMAGING WINDS AND DEADLY LIGHTNING
WITH THE PASSAGE OF THESE STORMS.

BYRD
Special weather statement, Mar 23, 9:11 PM CST, 13 minutes before
ILZ017-018-027>031-036>038-041-240515-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
910 PM CST WED MAR 23 1994

...A SEVERE THUNDERSTORM WATCH REMAINS IN EFFECT FOR CENTRAL ILLINOIS
UNTIL 100 AM THIS MORNING...

AT 905 PM CST...A THUNDERSTORM PRODUCING HEAVY RAIN AND POSSIBLY SOME
SMALL HAIL WAS DETECTED NEAR WALNUT IN NORTHERN BUREAU COUNTY...47
MILES EAST OF MOLINE. MOVEMENT WAS TO THE EAST NORTHEAST AT 40 MPH. NO
OTHER SHOWERS OR THUNDERSTORMS WERE DETECTED ACROSS THE REGION.

STAY TUNED TO NOAA WEATHER RADIO OR LOCAL RADIO AND T.V. STATIONS FOR
LATER STATEMENTS AND POSSIBLE WARNINGS.

BREESER

The office that day

Everything else NWS Lincoln, IL issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 23, 8:42 PM CSTSevere Thunderstorm WarningILXStephenson, Winnebago36 min

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.