Alert archive / Illinois / Special Weather Statements in 2012
Special Weather Statement, NWS Chicago, IL
NWS Chicago, IL issued this special weather statement at Oct 25, 2012, 4:13 PM CDT for LaSalle County, Illinois. It was in force for 32 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Oct 25, 2012, 4:13 PM CDT (21:13 UTC)
- Expired
- Oct 25, 2012, 4:45 PM CDT
- In force
- 32 min
- Issued by
- NWS Chicago, IL
County LaSalle County, IL
The radar
The Chicago radar (KLOT), 91 km from the middle of the area, began a volume at 21:17 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 nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 9.2 hours before the alert went out and 108 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
- 46 J/kg
- Mixed-layer CIN
- -488 J/kg
- Mixed-layer LCL
- 805 m above ground
- 0-6 km bulk shear
- 28 kt
- 0-1 km storm-relative helicity
- 179 m²/s²
- 0-3 km storm-relative helicity
- 179 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>What forecasters said that day
The local office's own words before this special weather statement 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 special weather statement went out at Oct 25, 3:39 PM CDT, 34 minutes earlier.
Area forecast discussion, Oct 25, 3:39 PM CDT, 34 minutes before
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</html>Hazardous weather outlook, Oct 25, 4:33 AM CDT, 11 hours 40 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL 433 AM CDT THU OCT 25 2012 ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019- 260945- 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- 433 AM CDT THU OCT 25 2012 /533 AM EDT THU OCT 25 2012/ THIS HAZARDOUS WEATHER OUTLOOK IS FOR NORTH CENTRAL ILLINOIS... NORTHEAST ILLINOIS AND NORTHWEST INDIANA. .DAY ONE...TODAY AND TONIGHT. THUNDERSTORMS ARE EXPECTED TO MOVE WEST TO EAST ACROSS THE AREA AROUND MIDDAY THROUGH EARLY THIS EVENING. A FEW STORMS MAY INTENSIFY ENOUGH TO CREATE A THREAT OF ISOLATED DAMAGING WIND GUSTS. THUNDERSTORMS ARE MOST LIKELY TO BE IN NORTH CENTRAL ILLINOIS BETWEEN LATE MORNING AND LATE AFTERNOON...WITH THE STORMS MOST LIKELY FROM MID AFTERNOON THROUGH MID EVENING ACROSS NORTHEAST ILLINOIS AND NORTHWEST INDIANA AS A STRONG COLD FRONT PUSHES ACROSS THE AREA. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION WILL NOT BE NECESSARY THROUGH TONIGHT. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO LMZ740>745-260945- 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- 433 AM CDT THU OCT 25 2012 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 TO REACH THE NEARSHORE WATERS AROUND NOON AND CONTINUE THROUGH THIS EVENING. HAZARDOUS WINDS FOR SMALL CRAFT ARE EXPECTED TODAY ACROSS THE ENTIRE NEARSHORE WATERS OF ILLINOIS AND NORTHWEST INDIANA...THEN HAZARDOUS WINDS AND WAVES FOR SMALL CRAFT ARE EXPECTED FOR ALL OF THE NEARSHORE WATERS LATE THIS AFTERNOON THROUGH TONIGHT. OCCASIONAL GALE FORCE GUSTS TO 35 KT ARE POSSIBLE ACROSS THE ENTIRE NEARSHORE WATERS. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. HAZARDOUS WINDS AND WAVES FOR SMALL CRAFT ARE LIKELY THROUGH FRIDAY NIGHT. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO LMZ080-261-362-364-366-563-565-567-669-671-673-675-777-779-868- 870-872-874-876-878-260945- 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- 433 AM CDT THU OCT 25 2012 THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE MICHIGAN. .DAY ONE...TODAY AND TONIGHT. THERE ARE EXPECTED THIS MORNING ACROSS THE NORTHERN PORTION OF LAKE MICHIGAN...THEN THUNDERSTORMS ARE EXPECTED TO OVERSPREAD ALL OF LAKE MICHIGAN BY EARLY THIS AFTERNOON. THUNDERSTORMS ARE EXPECTED TO COME TO AN END FROM NORTHWEST TO SOUTHEAST EARLY THIS EVENING. SOUTH GALES TO 35 KT ARE EXPECTED TODAY THROUGH THIS EVENING ACROSS THE NORTHERN HALF OF LAKE MICHIGAN. ACROSS THE SOUTHERN HALF OF LAKE MICHIGAN OCCASIONAL GALE FORCE GUSTS TO 35 KT ARE EXPECTED THROUGH THIS EVENING. .DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY. NO HAZARDOUS WEATHER IS EXPECTED AT THIS TIME. && COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO WEBPAGE: WEATHER.GOV/CHICAGO BEACHLER
In the hours before
Special weather statement, Oct 25, 3:00 PM CDT, 1 hour 13 minutes before
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</html>The office that day
Everything else NWS Chicago, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Oct 25, 4:46 AM CDT | Gale Warning | LOT | 17 hr | |
| Oct 25, 4:44 PM CDT | Special Weather Statement | LOT | Grundy, Livingston | 46 min |
| Oct 25, 4:56 PM CDT | Special Marine Warning | LOT | 64 min | |
| Oct 25, 5:29 PM CDT | Special Weather Statement | LOT | Ford, Grundy, Kankakee, Livingston, Will | 61 min |
| Oct 25, 5:33 PM CDT | Special Marine Warning | LOT | 117 min | |
| Oct 25, 6:22 PM CDT | Special Weather Statement | LOT | Iroquois, Kankakee | 53 min |
| Oct 25, 6:40 PM CDT | Special Marine Warning | LOT | 68 min |
Nearby
Special Weather Statements in Illinois, 2012Every special weather statement in 2012
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.