Alert archive / Illinois / Tornado Warnings in 2006

Tornado Warning 14, NWS Chicago, IL

April 14, 2006Grundy County, Livingston County, Illinois

NWS Chicago, IL issued this tornado warning at Apr 14, 2006, 6:47 PM CDT for Grundy County, Livingston County, Illinois. It was in force for 43 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
Apr 14, 2006, 6:47 PM CDT (23:47 UTC)
Expired
Apr 14, 2006, 7:30 PM CDT
In force
43 min
Issued by
NWS Chicago, IL
Area
Counties, with a storm outline in the text

Counties Grundy County, IL, Livingston County, IL

The radar

The Chicago radar (KLOT), 67 km from the middle of the area, began a volume at 23:46 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Apr 14, 5:19 PM CDTTornado WatchSPC4 hr

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 11.8 hours before the alert went out and 105 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 2006-04-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1011 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, Lincoln, IL at 12:00Z on 2006-04-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 254 square meters per square second.1939587897Sfc1 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
1011 J/kg
Mixed-layer CIN
-195 J/kg
Mixed-layer LCL
1797 m above ground
0-6 km bulk shear
41 kt
0-1 km storm-relative helicity
254 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this tornado warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Chicago, IL wrote its last area forecast discussion before this tornado warning went out at Apr 14, 6:45 PM CDT, 2 minutes earlier.

Area forecast discussion, Apr 14, 6:45 PM CDT, 2 minutes before
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Hazardous weather outlook, Apr 14, 4:30 PM CDT, 2 hours 17 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
430 PM CDT FRI APR 14 2006

ILZ003>006-008-010>014-019>022-023-032-033-039-INZ001-002-010-011-
019-151030-
WINNEBAGO-BOONE-MCHENRY-LAKE IL-OGLE-LEE-DE KALB-KANE-DU PAGE-COOK-
LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON-IROQUOIS-FORD-
LAKE IN-PORTER-NEWTON-JASPER-BENTON-
430 PM CDT FRI APRIL 14 2006

THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL
AND NORTHEAST ILLINOIS...AND NORTHWEST INDIANA.

.DAY ONE... TONIGHT

WIDELY SCATTERED THUNDERSTORMS ALONG AND SOUTH OF THE KANKAKEE RIVER
WILL BE ENDING EARLY THIS EVENING.

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH SUNDAY

THERE WILL BE A CHANCE OF THUNDERSTORMS SATURDAY NIGHT INTO EARLY
SUNDAY MORNING.  THUNDERSTORMS ARE ALSO EXPECTED AGAIN LATE TUESDAY
INTO WEDNESDAY. FEW OF THUNDERSTORMS BOTH SATURDAY NIGHT AND TUESDAY
EVENING MAY BE SEVERE.

.SPOTTER INFORMATION STATEMENT...

SPOTTER ACTIVATION MAY BE REQUESTED SATURDAY NIGHT AND SUNDAY
MORNING.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE
NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO (LOWER CASE)

LMZ740>745-766-151030-
WINTHROP HARBOR IL TO MICHIGAN CITY IN-
LAKE MICHIGAN-
430 PM CDT FRI APR 14 2006

THIS PORTION OF THE HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS
AND INDIANA WATERS OF LAKE MICHIGAN.

.DAY ONE... TONIGHT

THE PROBABILITY FOR WIDESPREAD HAZARDOUS WEATHER IS LOW.

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH SUNDAY

THERE WILL BE A CHANCE OF THUNDERSTORMS SATURDAY NIGHT INTO EARLY
SUNDAY MORNING.  THUNDERSTORMS ARE ALSO EXPECTED AGAIN LATE TUESDAY
INTO WEDNESDAY. FEW OF THUNDERSTORMS BOTH SATURDAY NIGHT AND TUESDAY
EVENING MAY BE SEVERE.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE
NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO (LOWER CASE)

In the hours before

Local storm report, Apr 14, 3:44 PM CDT, 3 hours 3 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
344 PM CDT FRI APR 14 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0910 PM     HAIL             DIXON                   41.85N 89.48W
04/13/2006  E0.88 INCH       LEE                IL   CO-OP OBSERVER

0910 PM     HAIL             DIXON                   41.85N 89.48W
04/13/2006  M2.75 INCH       LEE                IL   TRAINED SPOTTER

0924 PM     HAIL             LEAF RIVER              42.12N 89.40W
04/13/2006  E1.00 INCH       OGLE               IL   LAW ENFORCEMENT

0940 PM     HAIL             BYRON                   42.13N 89.26W
04/13/2006  E0.88 INCH       OGLE               IL   TRAINED SPOTTER

0942 PM     HAIL             ROCKFORD                42.27N 89.06W
04/13/2006  E1.00 INCH       WINNEBAGO          IL   TRAINED SPOTTER

0945 PM     HAIL             ROCKFORD                42.27N 89.06W
04/13/2006  E1.00 INCH       WINNEBAGO          IL   AMATEUR RADIO

            I-39 AND US-20 BY-PASS

0945 PM     HAIL             ROCKFORD                42.27N 89.06W
04/13/2006  E0.75 INCH       WINNEBAGO          IL   TRAINED SPOTTER

            RFD AIRPORT

0947 PM     HAIL             ROCKFORD                42.27N 89.06W
04/13/2006  E1.75 INCH       WINNEBAGO          IL   TRAINED SPOTTER

            E STATE ST AND MULFORD ST

0948 PM     HAIL             CHERRY VALLEY           42.24N 88.96W
04/13/2006  E2.00 INCH       WINNEBAGO          IL   TRAINED SPOTTER

            NEAR DOWNTOWN.

0950 PM     HAIL             ROCKFORD                42.27N 89.06W
04/13/2006  E1.25 INCH       WINNEBAGO          IL   TRAINED SPOTTER

0953 PM     HAIL             BELVIDERE               42.25N 88.85W
04/13/2006  E1.75 INCH       BOONE              IL   EMERGENCY MNGR

1002 PM     HAIL             MARENGO                 42.25N 88.60W
04/13/2006  E1.00 INCH       MCHENRY            IL   TRAINED SPOTTER

            DENTS TO SIDING ON HOUSE AND VEHICLE.

1005 PM     HAIL             WOODSTOCK               42.31N 88.44W
04/13/2006  E1.00 INCH       MCHENRY            IL   TRAINED SPOTTER

1014 PM     HAIL             CRYSTAL LAKE            42.23N 88.33W
04/13/2006  E1.00 INCH       MCHENRY            IL   CO-OP OBSERVER

1018 PM     HAIL             5 E LAKEMOOR            42.34N 88.11W
04/13/2006  E0.75 INCH       LAKE               IL   TRAINED SPOTTER

1020 PM     HAIL             WAUCONDA                42.27N 88.14W
04/13/2006  E1.00 INCH       LAKE               IL   TRAINED SPOTTER

1020 PM     HAIL             WAUCONDA                42.27N 88.14W
04/13/2006  E0.75 INCH       LAKE               IL   TRAINED SPOTTER

1022 PM     HAIL             MUNDELEIN               42.27N 88.00W
04/13/2006  E0.75 INCH       LAKE               IL   TRAINED SPOTTER

            1/2 TO 3/4 INCH HAIL.AT MIDLOTHIAN RD AND COKENBERG RD.

1023 PM     HAIL             HAINESVILLE             42.34N 88.06W
04/13/2006  E0.75 INCH       LAKE               IL   TRAINED SPOTTER

            IL-120 AND HAINESVILLE RD

1025 PM     HAIL             GAGES LAKE              42.35N 87.98W
04/13/2006  E1.75 INCH       LAKE               IL   TRAINED SPOTTER

            IL-120 AND US-45

1027 PM     HAIL             WAUCONDA                42.27N 88.14W
04/13/2006  E1.00 INCH       LAKE               IL   TRAINED SPOTTER

            AT FAIRFIELD ST AND BONNER RD

1030 PM     HAIL             GRAYSLAKE               42.35N 88.04W
04/13/2006  E1.00 INCH       LAKE               IL   TRAINED SPOTTER

1031 PM     HAIL             WAUKEGAN                42.37N 87.87W
04/13/2006  E1.75 INCH       LAKE               IL   TRAINED SPOTTER

1038 PM     HAIL             NORTH CHICAGO           42.32N 87.86W
04/13/2006  E1.00 INCH       LAKE               IL   TRAINED SPOTTER

            3/4 TO ONE INCH AT 14TH ST AND SHERIDAN

1042 PM     HAIL             MOKENA                  41.53N 87.88W
04/13/2006  E0.75 INCH       WILL               IL   TRAINED SPOTTER

1102 PM     HAIL             JOLIET                  41.53N 88.12W
04/13/2006  E0.75 INCH       WILL               IL   TRAINED SPOTTER

1105 PM     TSTM WND DMG     WENONA                  41.05N 89.05W
04/13/2006                   LA SALLE           IL   EMERGENCY MNGR

            ON THE LA SALLE CNTY SIDE - MANY LIMBS DOWN. ON THE
            MARSHALL CNTY SIDE - NUMEROUS TREES DOWN, DOOR ON CAR
            WASH FACILITY BLOWN OUT, SIGN BLOWN OUT AT GAS STATION.

1115 PM     TSTM WND DMG     DANA                    40.96N 88.95W
04/13/2006                   LA SALLE           IL   TRAINED SPOTTER

            STOP LIGHT BLOWN DOWN ON 11TH ROAD.

1230 AM     HAIL             GIBSON CITY             40.47N 88.38W
04/14/2006  E0.88 INCH       FORD               IL   LAW ENFORCEMENT

0103 AM     HAIL             MOUNT MORRIS            42.05N 89.43W
04/14/2006  E0.75 INCH       OGLE               IL   LAW ENFORCEMENT

0130 AM     HAIL             DANA                    40.96N 88.95W
04/14/2006  E1.75 INCH       LA SALLE           IL   LAW ENFORCEMENT

0139 AM     HAIL             FLANAGAN                40.88N 88.86W
04/14/2006  E1.00 INCH       LIVINGSTON         IL   FIRE DEPT/RESCUE

0230 AM     HAIL             PLANO                   41.66N 88.53W
04/14/2006  E1.00 INCH       KENDALL            IL   TRAINED SPOTTER

0245 AM     HAIL             5 W PLAINFIELD          41.62N 88.30W
04/14/2006  E0.75 INCH       KENDALL            IL   TRAINED SPOTTER

&&

BNELSON
Local storm report, Apr 14, 6:01 PM CDT, 46 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
601 PM CDT FRI APR 14 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 PM     HAIL             ONARGA                  40.71N 88.01W
04/14/2006  E0.88 INCH       IROQUOIS           IL   EMERGENCY MNGR

&&

BN
Local storm report, Apr 14, 6:05 PM CDT, 42 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
605 PM CDT FRI APR 14 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0555 PM     HAIL             THAWVILLE               40.67N 88.11W
04/14/2006  E0.88 INCH       IROQUOIS           IL   EMERGENCY MNGR

0602 PM     HAIL             GILMAN                  40.77N 88.00W
04/14/2006  E1.75 INCH       IROQUOIS           IL   LAW ENFORCEMENT

&&

BN
Local storm report, Apr 14, 6:16 PM CDT, 31 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
616 PM CDT FRI APR 14 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0613 PM     HAIL             CISSNA PARK             40.57N 87.89W
04/14/2006  E1.00 INCH       IROQUOIS           IL   TRAINED SPOTTER

            AT HALF WAY POINT BETWEEN CISSNA PARK AND CRESCENT CITY.

&&

BN
Local storm report, Apr 14, 6:28 PM CDT, 19 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
628 PM CDT FRI APR 14 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0623 PM     HAIL             MILFORD                 40.63N 87.70W
04/14/2006  E1.75 INCH       IROQUOIS           IL   CO-OP OBSERVER

&&

BN
Local storm report, Apr 14, 6:29 PM CDT, 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
629 PM CDT FRI APR 14 2006

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0621 PM     HAIL             5 NW MILFORD            40.68N 87.76W
04/14/2006  E1.75 INCH       IROQUOIS           IL   CO-OP OBSERVER

&&

BN

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 13, 8:57 PM CDTSevere Thunderstorm WarningLOTLee, Ogle52 min
Apr 13, 9:28 PM CDTSevere Thunderstorm WarningLOTWinnebago29 min
Apr 13, 9:47 PM CDTSevere Thunderstorm WarningLOTBoone17 min
Apr 13, 9:55 PM CDTSevere Thunderstorm WarningLOTMcHenry29 min
Apr 13, 10:11 PM CDTSpecial Marine WarningLOT49 min
Apr 13, 10:11 PM CDTSevere Thunderstorm WarningLOTLake35 min
Apr 13, 10:50 PM CDTSevere Thunderstorm WarningLOTLaSalle25 min
Apr 13, 10:57 PM CDTSevere Thunderstorm WarningLOTWill33 min
Apr 13, 11:06 PM CDTTornado WarningLOTLaSalle, Livingston39 min
Apr 13, 11:47 PM CDTSevere Thunderstorm WarningLOTLivingston43 min
Apr 14, 12:13 AM CDTSevere Thunderstorm WarningLOTFord37 min
Apr 14, 12:47 AM CDTSevere Thunderstorm WarningLOTLaSalle, Livingston58 min
Apr 14, 12:58 AM CDTSevere Thunderstorm WarningLOTOgle19 min
Apr 14, 1:24 AM CDTSevere Thunderstorm WarningLOTFord51 min
Apr 14, 1:45 AM CDTSevere Thunderstorm WarningLOTLivingston45 min
Apr 14, 1:46 AM CDTSevere Thunderstorm WarningLOTLaSalle44 min
Apr 14, 1:53 AM CDTSevere Thunderstorm WarningLOTKane37 min
Apr 14, 2:33 AM CDTSevere Thunderstorm WarningLOTKendall14 min
Apr 14, 5:52 PM CDTSevere Thunderstorm WarningLOTIroquois23 min
Apr 14, 6:06 PM CDTSevere Thunderstorm WarningLOTLaSalle39 min
Apr 14, 6:15 PM CDTSevere Thunderstorm WarningLOTIroquois15 min
Apr 14, 6:15 PM CDTSevere Thunderstorm WarningLOTGrundy, Kendall, Will45 min
Apr 14, 6:22 PM CDTTornado WarningLOTLaSalle38 min
Apr 14, 6:29 PM CDTTornado WarningLOTIroquois46 min
Apr 14, 6:33 PM CDTSevere Thunderstorm WarningLOTGrundy, Will42 min
Apr 14, 6:41 PM CDTTornado WarningLOTGrundy, Will49 min
Apr 14, 5:59 PM CDTSevere Thunderstorm WarningLOTJasper, Newton31 min

Nearby

Tornado Warnings in Illinois, 2006Every tornado warning in 2006Tornadoes in 2006

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.