Alert archive / Illinois / Severe Thunderstorm Warnings in 1993

Severe Thunderstorm Warning 39, NWS Lincoln, IL

June 17, 1993Lee County, Ogle County, Illinois

NWS Lincoln, IL issued this severe thunderstorm warning at Jun 17, 1993, 5:26 PM CDT for Lee County, Ogle County, Illinois. It was in force for 49 min.

The area

The counties it named.

The facts

Issued
Jun 17, 1993, 5:26 PM CDT (22:26 UTC)
Expired
Jun 17, 1993, 6:15 PM CDT
In force
49 min
Issued by
NWS Lincoln, IL
Area
Whole counties

Counties Lee County, IL, Ogle County, IL

The nearest sounding before it

Minneapolis, MN (KSTC), launched 12:00Z, 10.4 hours before the alert went out and 478 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, Minneapolis, MN at 12:00Z on 1993-06-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 13 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, Minneapolis, MN at 12:00Z on 1993-06-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 81 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
13 J/kg
Mixed-layer CIN
-45 J/kg
Mixed-layer LCL
540 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
81 m²/s²
0-3 km storm-relative helicity
-16 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 KRFD 172226 RRA
SVRRFD
ILC141-103-172315-

BULLETIN - IMMEDIATE BROADCAST REQUESTED
SEVERE THUNDERSTORM WARNING 
NATIONAL WEATHER SERVICE ROCKFORD IL
526 PM CDT THU JUN 17 1993

THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM 
WARNING EFFECTIVE UNTIL 615 PM CDT FOR PEOPLE IN THE FOLLOWING 
COUNTIES

   IN THE NORTH CENTRAL PART OF ILLINOIS
      SOUTHERN OGLE...WESTERN LEE

AT 520 PM CDT...THE SHERIFFS OFFICE IN LEE COUNTY REPORTED TREES
DOWNED AND TRAILERS BLOWN OVER BY STRONG WINDS NEAR DIXON.
THE STORM THAT PRODUCED THIS DAMAGE WAS MOVING TO THE NORTH AROUND
20 MPH.

SOME COMMUNITIES THAT WILL BE AFFECTED BY THIS SEVERE THUNDERSTORM...
IN LEE COUNTY...PALMYRA
IN OGLE COUNTY...POLO...GRAND DETOUR

IF YOU ARE IN A REGION THREATENED BY THE STORM...MOVE OUT OF AREAS
THAT ARE PRONE TO FLOODING...AND GO TO A REINFORCED SHELTER!
DAMAGING WINDS...LARGE HAIL...DANGEROUS LIGHTNING AND VERY HEAVY
RAINFALL THAT CAN QUICKLY FLOOD A LOW LYING AR EA IS IMMINENT!
REMEMBER ALSO...SEVERE THUNDERSTORMS CAN AND DO PRODUCE TORNADOES
WITH LITTLE OR NO WARNING...SO BE ALERT!

PETROVICH

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 17, 2:50 PM CDT, 2 hours 36 minutes before
ILZ007-172100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
250 PM CDT THU JUN 17 1993

...A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN AND WESTERN
ILLINOIS...

AT 216 PM... A LINE OF STRONG THUNDERSTORMS WAS MOVING THROUGH
NORTHWEST ILLINOIS AND NORTHEAST IOWA.  THE STRONGEST STORMS WERE
STILL LOCATED IN IOWA AND WERE MOVING EAST AROUND 30 MPH.

AT 230 PM... THERE WAS A THUNDERSTORM LOCATED NORTHEAST OF SHEFFIELD
IN BUREAU COUNTY IN NORTH CENTRAL ILLINOIS.  THE STORM WAS MOVING TO THE
EAST NORTHEAST AROUND 30 MPH.

NO OTHER SHOWERS OR THUNDERSTORMS WERE IN THE AREA...HOWEVER...PERSONS NEED
TO BE AWARE OF THESE STORMS AND THEIR POTENTIAL.  THEY MAY CREATE HEAVY
RAIN...STRONG WINDS AND HAIL.  YOU MAY NEED TO SEED SHELTER AS THEY APPROACH.
OUSLEY
Special weather statement, Jun 17, 2:58 PM CDT, 2 hours 28 minutes before
ILZ007-172100-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
250 PM CDT THU JUN 17 1993

...A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN AND WESTERN
ILLINOIS...

AT 216 PM... A LINE OF STRONG THUNDERSTORMS WAS MOVING THROUGH
NORTHWEST ILLINOIS AND NORTHEAST IOWA.  THE STRONGEST STORMS WERE
STILL LOCATED IN IOWA AND WERE MOVING EAST AROUND 30 MPH.

AT 230 PM... THERE WAS A THUNDERSTORM LOCATED NORTHEAST OF SHEFFIELD
IN BUREAU COUNTY IN NORTH CENTRAL ILLINOIS.  THE STORM WAS MOVING TO THE
EAST NORTHEAST AROUND 30 MPH.

NO OTHER SHOWERS OR THUNDERSTORMS WERE IN THE AREA...HOWEVER...PERSONS NEED
TO BE AWARE OF THESE STORMS AND THEIR POTENTIAL.  THEY MAY CREATE HEAVY
RAIN...STRONG WINDS AND HAIL.  YOU MAY NEED TO SEED SHELTER AS THEY APPROACH.
OUSLEY
Special weather statement, Jun 17, 3:30 PM CDT, 1 hour 56 minutes before
ILZ007-172130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
330 PM CDT THU JUN 17 1993

...A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN AND WESTERN
ILLINOIS...

AT 325 PM... THUNDERSTORMS WERE IN KNOX COUNTY NEAR THE TOWN OF
KNOXVILLE AND GALESBURG. THESE STORMS WERE MOVING EAST NORTHEAST AT 30 MPH.
CONDITIONS ARE FAVORABLE FOR THESE STORMS TO BECOME SEVERE AS WE REACH THE
WARMEST TIME OF THE DAY.

THESE STORMS WILL CONTINUE TO MOVE EAST... REACHING NEARBY STARK AND BUREAU
COUNTIES BY 430 PM.

STAY TUNED TO NOAA WEATHER RADIO... LOCAL TELEVISION AND RADIO FOR FURTHER
STATEMENNTS AND POSSIBLE WARNINGS.

MOGGED
Special weather statement, Jun 17, 3:33 PM CDT, 1 hour 53 minutes before
ILZ007-172130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
330 PM CDT THU JUN 17 1993

...A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN AND WESTERN
ILLINOIS...

AT 325 PM... THUNDERSTORMS WERE IN KNOX COUNTY NEAR THE TOWN OF
KNOXVILLE AND GALESBURG. THESE STORMS WERE MOVING EAST NORTHEAST AT 30 MPH.
CONDITIONS ARE FAVORABLE FOR THESE STORMS TO BECOME SEVERE AS WE REACH THE
WARMEST TIME OF THE DAY.

THESE STORMS WILL CONT0INUE TO MOVE EAST... REACHING NEARBY STARK AND BUREAU
COUNTIES BY 430 PM.

STAY TUNED TO NOAA WEATHER RADIO... LOCAL TELEVISION AND RADIO FOR FURTHER
STATEMENNTS AND POSSIBLE WARNINGS.

MOGGED
Special weather statement, Jun 17, 4:30 PM CDT, 56 minutes before
ILZ007-172130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
430 PM CDT THU JUN 17 1993

...A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN AND WESTERN
ILLINOIS...

AT 425 PM... AN ISOLATED THUNDERSTORM WAS ENTERING THE NORTHWEST CORNER
OF BUREAU COUNTY. THIS STORM WAS MOVING EAST NORTHEAST AT 20 MPH.

THIS STORM WILL AFFECT THE TOWNS OF THOMAS... NEW BEDFORD AND YORKTOWN...
ALL IN THE NORTHWEST CORNER OF BUREAU COUNTY THROUGH 530 PM. CONDITIONS
REMAIN FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT ACROSS THE WESTERN
AND NORTHERN PORTIONS OF THE HEARTLAND.

STAY TUNED TO NOAA WEATHER RADIO... LOCAL TELEVISION AND RADIO FOR FURTHER
STATEMENNTS AND POSSIBLE WARNINGS.

MOGGED
Special weather statement, Jun 17, 4:36 PM CDT, 50 minutes before
ILZ007-172130-

SPECIAL WEATHER STATEMENT
NATIONAL WEATHER SERVICE PEORIA IL
430 PM CDT THU JUN 17 1993

...A SEVERE THUNDERSTORM WATCH FOR PORTIONS OF NORTHERN AND WESTERN
ILLINOIS...

AT 425 PM... AN ISOLATED THUNDERSTORM WAS ENTERING THE NORTHWEST CORNER
OF BUREAU COUNTY. THIS STORM WAS MOVING EAST NORTHEAST AT 20 MPH.

THIS STORM WILL AFFECT THE TOWNS OF THOMAS... NEW BEDFORD AND YORKTOWN...
ALL IN THE NORTHWEST CORNER OF BUREAU COUNTY THROUGH 530 PM. CONDITIONS
REMAIN FAVORABLE FOR SEVERE THUNDERSTORM DEVELOPMENT ACROSS THE WESTERN
AND NORTHERN PORTIONS OF THE HEARTLAND.

STAY TUNED TO NOAA WEATHER RADIO... LOCAL TELEVISION AND RADIO FOR FURTHER
STATEMENNTS AND POSSIBLE WARNINGS.

^MOGGED

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 17, 1:56 PM CDTSevere Thunderstorm WarningILXStephenson49 min
Jun 17, 2:48 PM CDTSevere Thunderstorm WarningILXStephenson42 min
Jun 17, 5:59 PM CDTTornado WarningILXOgle, Winnebago31 min
Jun 17, 6:29 PM CDTSevere Thunderstorm WarningILXBoone, Winnebago46 min
Jun 17, 6:52 PM CDTSevere Thunderstorm WarningILXCarroll31 min

Nearby

Severe Thunderstorm Warnings in Illinois, 1993Every severe thunderstorm warning in 1993

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.