Alert archive / Illinois / Severe Thunderstorm Warnings in 1994

Severe Thunderstorm Warning 35, NWS Lincoln, IL

May 25, 1994Boone County, Winnebago County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at May 25, 1994, 4:53 PM CDT for Boone County, Winnebago County, Illinois. It was in force for 52 min.

The area

The counties it named.

The facts

Issued
May 25, 1994, 4:53 PM CDT (21:53 UTC)
Expired
May 25, 1994, 5:45 PM CDT
In force
52 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Boone County, IL, Winnebago County, IL

The nearest sounding before it

Green Bay/Straub, WI (KGRB), launched 12:00Z, 9.9 hours before the alert went out and 250 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, Green Bay/Straub, WI at 12:00Z on 1994-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCLEL10008507005003002001001 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, Green Bay/Straub, WI at 12:00Z on 1994-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 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
598 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
22 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 KRFD 252153 RRA
SVRRFD
ILC201-007-252245-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE ROCKFORD IL
453 PM CDT WED MAY 25 1994

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 545 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTH CENTRAL PART OF ILLINOIS
      NORTHERN WINNEBAGO...BOONE

AT 4 48 PM CDT...RADAR INDICATED A POSSIBLE SEVERE THUNDERSTORM
JUST NORTHWEST OF BELOIT WISCONSIN. THIS STORM WAS MOVING SOUTHEAST
AT 30 MPH. LARGE 1 INCH SIZED HAIL WAS REPORTED WITH THIS STORM
IN WESTERN ROCK COUNTY WISCONSIN DURING THE LAST 15 MINUTES.

SOME COMMUNITIES THAT WILL BE AFFECTED BY THIS SEVERE THUNDERSTORM...
SOUTH BELOIT...ROCKTON...ROSCOE...POPLAR GROVE...BLAINE...CAPRON.

IF YOU ARE IN THE PATH OF THIS STORM...MOVE OUT OF AREAS THAT ARE
PRONE TO FLOODING AND TAKE SHELTER.  DAMAGING WINDS...LARGE HAIL
AND VERY HEAVY RAIN IS IMMINENT! REMEMBER...SEVERE THUNDERSTORMS
CAN ALSO PRODUCE TORNADOES WITH LITTLE OR NO WARNING!

SANDERS

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, May 25, 2:45 PM CDT, 2 hours 8 minutes before
ILZ017-018-026>031-037-038-252045-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
245 PM CDT WED MAY 25 1994

...SEVERE THUNDERSTORM WATCH IN EFFECT UNTIL 7 PM THIS EVENING FOR
MUCH OF THE AREA...

AT 240 PM... NO THUNDERSTORMS WERE IN WEST CENTRAL ILLINOIS. STRONG
THUNDERSTORMS EXTENDED FROM EXTREME NORTHWEST ILLINOIS SOUTHWEST INTO
EASTERN IOWA. THESE STORMS WERE MOVING SOUTHEAST AT 30 MPH.

THE STORMS SHOULD REACH THE MISSISSIPPI RIVER NEAR BURLINGTON BY 4 PM.

PERSONS IN THE AFFECTED AREAS SHOULD REMAIN ALERT TO CHANGING
WEATHER CONDITIONS...STAY TUNED TO NOAA WEATHER RADIO FOR THE LATEST
WEATHER INFORMATION.

MOGGED
Special weather statement, May 25, 3:49 PM CDT, 1 hour 4 minutes before
ILZ017-018-025>031-037-038-252150-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
349 PM CDT WED MAY 25 1994

...THUNDERSTORMS MOVING INTO WESTERN ILLINOIS...

AROUND 350 PM CDT...A LINE OF THUNDERSTORMS WAS MOVING ACROSS THE
MISSISSIPPI RIVER INTO HENDERSON COUNTY. SOME OF THESE THUNDERSTORMS
HAVE CAUSED WIND DAMAGE IN EASTERN IOWA. MOVEMENT OF THE STORMS WAS TO
THE SOUTHEAST AT 35 MPH.

PERSONS IN EXTREME NORTHERN HENDERSON COUNTY WILL LIKELY SEE SMALL
HAIL...GUSTY WINDS AND INTENSE LIGHTNING DURING THE NEXT 30 MINUTES.
PERSONS IN THE AFFECTED AREA SHOULD REMAIN ALERT TO CHANGING WEATHER
CONDITIONS AND BE PREPARED TO TAKE SHELTER IF ANY STORMS BECOME SEVERE.

MUCH OF WEST CENTRAL ILLINOIS REMAINS UNDER A SEVERE THUNDERSTORM WATCH
UNTIL 7PM THIS EVENING.

BREESER
Special weather statement, May 25, 3:53 PM CDT, 1 hour before
ILZ017-018-025>031-037-038-252150-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
349 PM CDT WED MAY 25 1994

...THUNDERSTORMS MOVING INTO WESTERN ILLINOIS...

AROUND 350 PM CDT...A LINE OF THUNDERSTORMS WAS MOVING ACROSS THE
MISSISSIPPI RIVER INTO HENDERSON COUNTY. SOME OF THESE THUNDERSTORMS
HAVE CAUSED WIND DAMAGE IN EASTERN IOWA. MOVEMENT OF THE STORMS WAS TO
THE SOUTHEAST AT 35 MPH.

PERSONS IN EXTREME NORTHERN HENDERSON COUNTY WILL LIKELY SEE SMALL
HAIL...GUSTY WINDS AND INTENSE LIGHTNING DURING THE NEXT 30 MINUTES.
PERSONS IN THE AFFECTED AREA SHOULD REMAIN ALERT TO CHANGING WEATHER
CONDITIONS AND BE PREPARED TO TAKE SHELTER IF ANY STORMS BECOME SEVERE.

MUCH OF WEST CENTRAL ILLINOIS REMAINS UNDER A SEVERE THUNDERSTORM WATCH
UNTIL 7PM THIS EVENING.

BREESER
Special weather statement, May 25, 4:33 PM CDT, 20 minutes before
ILZ042>048-050>057-059>063-252235-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE SPRINGFIELD IL
433 PM CDT WED MAY 25 1994

...STRONG THUNDERSTORMS ACROSS CENTRAL ILLINOIS MOVING INTO THE
SPRINGFIELD AREA AND ACROSS THE CHAMPAIGN AND DANVILLE AREAS...

AT 4 25 PM CDT...STRONG THUNDERSTORM WERE MOVING INTO THE SPRINGFIELD
AREA.  THESE WILL MOVE INTO THE SOUTHERN PART OF SANGAMON COUNTY BY
AROUND 5 PM.

A LINE OF STRONG STORMS WAS ACROSS CHAMPAIGN AND DANVILLE.

PEOPLE IN SANGAMON...CHAMPAIGN....AND VERMILION COUNTIES SHOULD
MOVE TO SHELTER IN A SUBSTANTIAL BUILDING UNTIL THE STORMS HAVE
PASSED.  PROTECT YOURSELF FROM DEADLY LIGHTNING.  EXPECT SMALL
HAIL...GUSTY WINDS TO AROUND 50 MPH AND BRIEF HEAVY DOWNPOURS OF
RAIN.

A LATE REPORT FROM RADIO STATION WDWS IN CHAMPAIGN OF A WIND GUST
TO 54 MPH AT 423 PM.

REMEMBER...A SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM
CDT FOR DEWITT AND LOGAN COUNTIES IN CENTRAL ILLINOIS.

PALMER
Special weather statement, May 25, 4:47 PM CDT, 6 minutes before
ILZ017-018-025>031-034>038-040-041-252250-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
447 PM CDT WED MAY 25 1994

...SHOWERS AND THUNDERSTORMS WERE MOVING THROUGH WARREN COUNTY...

A DISORGANIZED LINE OF SHOWERS AND THUNDERSTORMS ARCED FROM NEAR
ROCKFORD TO MONMOUTH THEN WEST TO BURLINGTON. THESE STORMS WERE MOVING
EAST SOUTHEAST AT 30 MPH.

THE STRONGEST STORM WAS NORTH OF MONMOUTH IN WARREN COUNTY. THIS STORM
WILL MOVE INTO NORTHERN KNOX COUTY BY 515 PM. OTHER STORMS WILL
CONTINUE ACROSS HENDERSON AND WARREN COUNTIES THROUGH 6 PM. NORTHERN
BUREAU COUNTY WILL ALSO SEE THUNDERSTORMS DURING THIS TIME FRAME.

A SEVERE THUNDERSTORMS WATCH CONTINUES FOR MUCH OF WEST CENTRAL
ILLINOIS THROUGH 7 PM. STAY TUNED TO NOAA WEATHER RADIO...LOCAL
RADIO OR TELEVISION FOR FURTHER UPDATES.

MOGGED
Special weather statement, May 25, 4:51 PM CDT, 2 minutes before
ILZ017-018-025>031-034>038-040-041-252250-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
447 PM CDT WED MAY 25 1994

...SHOWERS AND THUNDERSTORMS WERE MOVING THROUGH WARREN COUNTY...

A DISORGANIZED LINE OF SHOWERS AND THUNDERSTORMS ARCED FROM NEAR
ROCKFORD TO MONMOUTH THEN WEST TO BURLINGTON. THESE STORMS WERE MOVING
EAST SOUTHEAST AT 30 MPH.

THE STRONGEST STORM WAS NORTH OF MONMOUTH IN WARREN COUNTY. THIS STORM
WILL MOVE INTO NORTHERN KNOX COUTY BY 515 PM. OTHER STORMS WILL
CONTINUE ACROSS HENDERSON AND WARREN COUNTIES THROUGH 6 PM. NORTHERN
BUREAU COUNTY WILL ALSO SEE THUNDERSTORMS DURING THIS TIME FRAME.

A SEVERE THUNDERSTORMS WATCH CONTINUES FOR MUCH OF WEST CENTRAL
ILLINOIS THROUGH 7 PM. STAY TUNED TO NOAA WEATHER RADIO...LOCAL
RADIO OR TELEVISION FOR FURTHER UPDATES.

MOGGED

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 7:41 PM CDTSevere Thunderstorm WarningILXSangamon34 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.