Alert archive / Illinois / Severe Thunderstorm Warnings in 2013
Severe Thunderstorm Warning 129, NWS Chicago, IL
NWS Chicago, IL issued this severe thunderstorm warning at Nov 17, 2013, 12:32 PM CST for 6 counties in 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
- Nov 17, 2013, 12:32 PM CST (18:32 UTC)
- Expired
- Nov 17, 2013, 1:15 PM CST
- In force
- 43 min
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 90.0 mph
Counties Boone County, IL, DeKalb County, IL, Kane County, IL, Kendall County, IL, LaSalle County, IL, McHenry County, IL
The radar
The Chicago radar (KLOT), 56 km from the middle of the area, began a volume at 18:36 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.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Nov 17, 8:40 AM CST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Davenport, (KDVN), launched 12:00Z, 6.5 hours before the alert went out and 158 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.
- Mixed-layer CAPE
- 783 J/kg
- Mixed-layer CIN
- -24 J/kg
- Mixed-layer LCL
- 474 m above ground
- 0-6 km bulk shear
- 73 kt
- 0-1 km storm-relative helicity
- 248 m²/s²
- 0-3 km storm-relative helicity
- 280 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 4.2
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.
NWS Chicago, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Nov 17, 12:21 PM CST, 11 minutes earlier.
Area forecast discussion, Nov 17, 12:21 PM CST, 11 minutes before
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</html>Hazardous weather outlook, Nov 17, 8:50 AM CST, 3 hours 42 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 850 AM CST SUN NOV 17 2013 ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019- 181500- WINNEBAGO-BOONE-MCHENRY-LAKE ILLINOIS-OGLE-LEE-DE KALB-KANE- DUPAGE-COOK-LA SALLE-KENDALL-GRUNDY-WILL-KANKAKEE-LIVINGSTON- IROQUOIS-FORD-LAKE INDIANA-PORTER-NEWTON-JASPER-BENTON- 850 AM CST SUN NOV 17 2013 /950 AM EST SUN NOV 17 2013/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS... NORTHEAST ILLINOIS AND NORTHWEST INDIANA. .DAY ONE...TODAY AND TONIGHT. WEATHER HAZARDS EXPECTED: THUNDERSTORMS...WHICH WILL PRODUCE... DAMAGING WIND GUSTS IN EXCESS OF 75 MPH. TORNADOES...POSSIBLY STRONG...DAMAGING AND LONG TRACKED. HAIL TO THE SIZE OF QUARTERS. AREAS AFFECTED AND TIMING: THUNDERSTORMS WILL CONTINUE TO DEVELOP THIS MORNING AND AFFECT THE ENTIRE OUTLOOK AREA THROUGH MID AFTERNOON. DISCUSSION: A POWERFUL STORM SYSTEM WILL MOVE ACROSS THE WESTERN GREAT LAKES REGION THIS AFTERNOON WITH A STRONG TRAILING COLD FRONT SWEEPING ACROSS THE AREA THIS AFTERNOON. SEVERE THUNDERSTORMS ARE EXPECTED TO DEVELOP AHEAD OF THIS FRONT AND RACE EAST ACROSS THE AREA. THE PRIMARY SEVERE WEATHER THREATS WILL BE DAMAGING WINDS AND THE POTENTIAL FOR STRONG...VERY DAMAGING...AND LONG LIVED TORNADOES. VERY WINDY CONDITIONS WILL DEVELOP THIS MORNING AND CONTINUE INTO THIS EVENING...OUTSIDE OF THUNDERSTORMS...WITH WIND GUSTS EXPECTED TO REACH 55 TO 60 MPH GENERALLY SOUTH OF AN EVANSTON TO MENDOTA LINE...WITH WIND GUSTS OF 50 TO 55 MPH NORTH OF THIS LINE. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTERS WILL BE NEEDED THROUGH MID TO LATE AFTERNOON. && LMZ740>745-181500- WINTHROP HARBOR TO WILMETTE HARBOR- WILMETTE HARBOR TO NORTHERLY ISLAND- NORTHERLY ISLAND TO CALUMET HARBOR-CALUMET HARBOR TO GARY- GARY TO BURNS HARBOR-BURNS HARBOR TO MICHIGAN CITY- 850 AM CST SUN NOV 17 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE ILLINOIS NEARSHORE WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE WATERS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT. THUNDERSTORMS ARE EXPECTED THROUGH LATE THIS AFTERNOON...SOME MAY BE SEVERE. GALE FORCE WINDS WILL DEVELOP LATE THIS MORNING THEN INCREASE TO STORM FORCE MID TO LATE AFTERNOON...DIMINISHING BACK TO GALES THIS EVENING. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. STRONG WINDS AND HIGH WAVES HAZARDOUS TO SMALL CRAFT WILL CONTINUE THROUGH MONDAY EVENING. && LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-181500- LAKE MICHIGAN FROM MICHIGAN CITY IN TO ST. JOSEPH MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM SEUL CHOIX POINT TO ROCK ISLAND PASSAGE 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN SOUTH OF A LINE FROM SEUL CHOIX POINT TO THE MACKINAC BRIDGE AND NORTH OF A LINE FROM CHARLEVOIX MI TO SOUTH FOX ISLAND 5 NM OFFSHORE- LAKE MICHIGAN FROM CHARLEVOIX TO POINT BETSIE MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM POINT BETSIE TO MANISTEE MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM ROCK ISLAND PASSAGE TO STURGEON BAY WI- LAKE MICHIGAN FROM STURGEON BAY TO TWO RIVERS WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM TWO RIVERS TO SHEBOYGAN WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM SHEBOYGAN TO PORT WASHINGTON WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM PORT WASHINGTON TO NORTH POINT LIGHT WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM NORTH POINT LIGHT TO WIND POINT WI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WIND POINT WI TO WINTHROP HARBOR IL 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WINTHROP HARBOR TO WILMETTE HARBOR IL 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WILMETTE HARBOR IL TO MICHIGAN CITY IN 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM PENTWATER TO MANISTEE MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM WHITEHALL TO PENTWATER MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM GRAND HAVEN TO WHITEHALL MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM HOLLAND TO GRAND HAVEN MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM SOUTH HAVEN TO HOLLAND MI 5 NM OFFSHORE TO MID LAKE- LAKE MICHIGAN FROM ST. JOSEPH TO SOUTH HAVEN MI 5 NM OFFSHORE TO MID LAKE- 850 AM CST SUN NOV 17 2013 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT. THUNDERSTORMS ARE EXPECTED THROUGH LATE THIS AFTERNOON...SOME MAY BE SEVERE...MAINLY ACROSS THE SOUTHERN TWO THIRDS OF THE LAKE. GALE FORCE WINDS WILL DEVELOP LATE THIS MORNING INTO EARLY THIS AFTERNOON ACROSS THE ENTIRE LAKE...THEN INCREASE TO STORM FORCE MID TO LATE AFTERNOON OVER THE SOUTHERN THREE QUARTERS OF THE LAKE. STORM FORCE WINDS WILL CONTINUE THROUGH LATE TONIGHT... DIMINISHING BACK TO GALE FORCE WINDS OVERNIGHT. .DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY. GALE FORCE WINDS WILL CONTINUE THROUGH MONDAY AFTERNOON. && IZZI VISIT US AT HTTP://WEATHER.GOV/CHICAGO (ALL LOWERCASE) FOLLOW US ON FACEBOOK...TWITTER...AND YOUTUBE AT: WWW.FACEBOOK.COM/US.NATIONALWEATHERSERVICE.CHICAGO.GOV WWW.TWITTER.COM/NWSCHICAGO WWW.YOUTUBE.COM/NWSCHICAGO
In the hours before
Local storm report, Nov 17, 12:06 PM CST, 26 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1206 PM CST SUN NOV 17 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 AM TSTM WND GST MORTON GROVE 42.04N 87.79W
11/17/2013 E60 MPH COOK IL TRAINED SPOTTER
NO DAMAGE. ALSO HAD PENNY SIZE 0.75 HAIL AND HEAVY
RAINFALL.
&&
BNLocal storm report, Nov 17, 12:08 PM CST, 24 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1208 PM CST SUN NOV 17 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1200 AM HAIL 2 SW YORKVILLE 41.62N 88.47W
11/17/2013 E0.25 INCH KENDALL IL CO-OP OBSERVER
1205 AM HAIL NAPERVILLE 41.76N 88.15W
11/17/2013 E0.88 INCH DUPAGE IL TRAINED SPOTTER
AT THOMPSON AND GREENE.
&&
BNLocal storm report, Nov 17, 12:18 PM CST, 14 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1218 PM CST SUN NOV 17 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1146 AM TSTM WND GST LISLE 41.79N 88.09W
11/17/2013 M58 MPH DUPAGE IL PUBLIC
LEASK LANE NEAR MORTON ARBORETUM. HAD SOME DAMAGE.
1212 AM TSTM WND GST MAZON 41.24N 88.42W
11/17/2013 E70 MPH GRUNDY IL TRAINED SPOTTER
ALSO HAD MARBLE SIZE HAIL.
&&
BNLocal storm report, Nov 17, 12:24 PM CST, 8 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1224 PM CST SUN NOV 17 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1139 AM TSTM WND GST ROSELLE 41.98N 88.08W
11/17/2013 E70 MPH DUPAGE IL TRAINED SPOTTER
1220 PM TORNADO BRACEVILLE 41.22N 88.27W
11/17/2013 GRUNDY IL LAW ENFORCEMENT
IL-113 AT WILL/GRUNDY COUNTY LINE.
&&
BNLocal storm report, Nov 17, 12:29 PM CST, 3 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1229 PM CST SUN NOV 17 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1225 PM TORNADO WILMINGTON 41.30N 88.16W
11/17/2013 WILL IL LAW ENFORCEMENT
AT IL-53 AND WILMINGTON AND PEOTONE ROAD.
&&
BNLocal storm report, Nov 17, 12:31 PM CST, 1 minute before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1231 PM CST SUN NOV 17 2013
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1226 PM TSTM WND DMG DIAMOND 41.29N 88.26W
11/17/2013 GRUNDY IL LAW ENFORCEMENT
HOUSES DAMAGED ON LOWELL LANE.
&&
BNThe office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 17, 3:09 AM CST | High Wind Warning | LOT | DuPage, Ford, Grundy, Iroquois, Kankakee, Kendall and 2 more | 17 hr |
| Nov 17, 4:10 AM CST | Gale Warning | LOT | 41 hr | |
| Nov 17, 4:10 AM CST | Gale Warning | LOT | 35 hr | |
| Nov 17, 4:10 AM CST | Storm Warning | LOT | 23 hr | |
| Nov 17, 5:00 AM CST | Special Weather Statement | LOT | Lake | 15 min |
| Nov 17, 6:02 AM CST | Special Weather Statement | LOT | Cook, Will | 28 min |
| Nov 17, 9:36 AM CST | Tornado Warning | LOT | Boone, McHenry | 39 min |
| Nov 17, 10:16 AM CST | Tornado Warning | LOT | McHenry | 44 min |
| Nov 17, 10:36 AM CST | Severe Thunderstorm Warning | LOT | LaSalle | 39 min |
| Nov 17, 11:07 AM CST | Severe Thunderstorm Warning | LOT | DuPage, Grundy, Kane, Kendall, LaSalle, Will | 23 min |
| Nov 17, 11:11 AM CST | Severe Thunderstorm Warning | LOT | Boone, McHenry, Ogle, Winnebago | 34 min |
| Nov 17, 11:12 AM CST | Tornado Warning | LOT | LaSalle, Livingston | 48 min |
| Nov 17, 11:14 AM CST | Special Marine Warning | LOT | 2 hr | |
| Nov 17, 11:25 AM CST | Severe Thunderstorm Warning | LOT | Cook, DuPage, Lake | 50 min |
| Nov 17, 11:33 AM CST | Tornado Warning | LOT | Grundy, LaSalle, Livingston | 42 min |
| Nov 17, 11:44 AM CST | Flash Flood Warning | LOT | Cook, DuPage, Kane, Kendall, Lake, Will | 4 hr |
| Nov 17, 12:07 PM CST | Severe Thunderstorm Warning | LOT | DeKalb, LaSalle, Lee, Ogle | 38 min |
| Nov 17, 12:14 PM CST | Tornado Warning | LOT | Grundy, Kankakee, Will | 46 min |
| Nov 17, 12:27 PM CST | Severe Thunderstorm Warning | LOT | Cook, Will | 48 min |
| Nov 17, 12:41 PM CST | Severe Thunderstorm Warning | LOT | Iroquois, Kankakee, Will | 64 min |
| Nov 17, 12:46 PM CST | Special Marine Warning | LOT | 119 min | |
| Nov 17, 12:46 PM CST | Tornado Warning | LOT | Cook, Will | 44 min |
| Nov 17, 12:58 PM CST | Severe Thunderstorm Warning | LOT | Cook, DuPage, Kane, Lake, McHenry | 47 min |
| Nov 17, 1:02 PM CST | Severe Thunderstorm Warning | LOT | DuPage, Grundy, Kankakee, Kendall, LaSalle, Livingston and 1 more | 43 min |
| Nov 17, 1:08 PM CST | Tornado Warning | LOT | Iroquois | 37 min |
| Nov 17, 1:15 PM CST | Severe Thunderstorm Warning | LOT | Iroquois | 60 min |
| Nov 17, 1:25 PM CST | Severe Thunderstorm Warning | LOT | Benton, Jasper | 35 min |
| Nov 17, 1:43 PM CST | Severe Thunderstorm Warning | LOT | Jasper, Porter | 32 min |
| Nov 17, 1:57 PM CST | Tornado Warning | LOT | Jasper | 18 min |
Nearby
Severe Thunderstorm Warnings in Illinois, 2013Every severe thunderstorm warning in 2013
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.