Alert archive / Indiana / Severe Thunderstorm Warnings in 2008
Severe Thunderstorm Warning 75, NWS Chicago, IL
NWS Chicago, IL issued this severe thunderstorm warning at Jun 8, 2008, 1:41 PM CDT for Lake County, Porter County, Indiana. It was in force for 49 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
- Jun 8, 2008, 1:41 PM CDT (18:41 UTC)
- Expired
- Jun 8, 2008, 2:30 PM CDT
- In force
- 49 min
- Issued by
- NWS Chicago, IL
- Area
- Storm-based polygon
Counties Lake County, IN, Porter County, IN
The radar
The Chicago radar (KLOT), 73 km from the middle of the area, began a volume at 18:43 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 |
|---|---|---|---|
| Jun 8, 9:47 AM CDT | Severe Thunderstorm Watch | SPC | 5 hr |
The nearest sounding before it
Lincoln, IL (KILX), launched 12:00Z, 6.7 hours before the alert went out and 189 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
- 1387 J/kg
- Mixed-layer CIN
- -64 J/kg
- Mixed-layer LCL
- 968 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 291 m²/s²
- 0-3 km storm-relative helicity
- 268 m²/s²
- Significant tornado parameter
- 1.5
- Supercell composite
- 6.2
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 Jun 8, 1:39 PM CDT, 2 minutes earlier.
Area forecast discussion, Jun 8, 1:39 PM CDT, 2 minutes before
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HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1216 PM CDT SUN JUN 8 2008
ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
091730-
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-
1216 PM CDT SUN JUN 8 2008 /116 PM EDT SUN JUN 8 2008/
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF NORTH CENTRAL
ILLINOIS...NORTHEAST ILLINOIS AND NORTHWEST INDIANA.
.DAY ONE...THIS AFTERNOON AND TONIGHT.
WEATHER HAZARDS EXPECTED:
THUNDERSTORMS...SOME MAY PRODUCE:
VERY HEAVY RAINFALL AND LOCALIZED FLASH FLOODING.
DAMAGING WINDS IN EXCESS OF 60 MPH.
HAIL UP TO THE SIZE OF NICKELS.
AREAS AFFECTED AND TIMING:
THUNDERSTORMS WILL CONTINUE TO MOVE ACROSS NORTHEAST ILLINOIS
EARLY THIS AFTERNOON WITH A POTENTIAL OF DAMAGING WINDS. THE
THREAT OF SEVERE WEATHER WILL MOVE INTO NORTHWEST INDIANA BY MID
AFTERNOON.
DISCUSSION:
THUNDERSTORMS WILL CONTINUE TO TRACK ACROSS NORTHEAST ILLINOIS
THIS AFTERNOON. ADDITIONAL THUNDERSTORMS ARE EXPECTED TO DEVELOP
ACROSS CENTRAL AND EASTERN IOWA LATER THIS AFTERNOON IN
PROXIMITY TO A SLOW MOVING FRONT. THESE THUNDERSTORMS MAY MOVE
BACK INTO NORTHWEST AND NORTH CENTRAL ILLINOIS LATE THIS
AFTERNOON INTO THIS EVENING. ADDITIONAL SCATTERED THUNDERSTORMS
MAY DEVELOP ALONG OLD OUTFLOW BOUNDARIES FROM THE MORNING AND
EARLY AFTERNOON.
IN ADDITION...ANOTHER PERIOD OF THUNDERSTORMS IS EXPECTED
TONIGHT AS A FRONTAL BOUNDARY TO OUR WEST INCHES CLOSER TO THE
REGION. ONCE AGAIN...THE PRIMARY SEVERE WEATHER THREAT FROM
THESE STORMS WILL BE LOCALLY DAMAGING WINDS IN EXCESS OF
60 MPH.
DUE TO THE EXTREMELY HUMID AIRMASS IN PLACE...ANY THUNDERSTORMS
THAT FORM TODAY AND TONIGHT WILL HAVE THE POTENTIAL TO PRODUCE
TORRENTIAL DOWNPOURS OF LOCALLY GREATER THAN TWO INCHES PER
HOUR. STORM TOTAL RAINFALL COULD EXCEED THREE INCHES IN
SPOTS...WHICH WOULD LIKELY RESULT IN FLASH FLOODING.
FINALLY...FLOODING WILL CONTINUE ALONG PORTIONS OF THE KANKAKEE
RIVER.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
THUNDERSTORMS ARE LIKELY AGAIN MONDAY...WITH A CONTINUED THREAT
FOR HEAVY RAINFALL AND FLASH FLOODING. IN ADDITION...THERE DOES
APPEAR TO BE AT LEAST POTENTIAL FOR SEVERE WEATHER...ESPECIALLY
ACROSS NORTHWEST INDIANA AND EAST OF INTERSTATE 55 IN ILLINOIS.
THUNDERSTORMS WILL BE POSSIBLE AGAIN WEDNESDAY THROUGH FRIDAY.
ALSO...PORTIONS OF THE KANKAKEE RIVER WILL REMAIN IN FLOOD.
.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>745-091730-
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-
1216 PM CDT SUN JUN 8 2008
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE ILLINOIS
NEARSHORE WATERS OF LAKE MICHIGAN AND THE INDIANA NEARSHORE
WATERS OF LAKE MICHIGAN.
.DAY ONE...THIS AFTERNOON AND TONIGHT.
STRONG WINDS WILL LEAD TO HAZARDOUS CONDITIONS FOR SMALL CRAFT
THROUGH THIS EVENING.
ALSO...THUNDERSTORMS...SOME POSSIBLY SEVERE WITH WIND GUSTS OVER
35 KNOTS...ARE LIKELY TODAY AND TONIGHT.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
STRONG WINDS WILL LEAD TO HAZARDOUS CONDITIONS FOR SMALL CRAFT
AGAIN MONDAY.
THUNDERSTORMS ARE LIKELY AGAIN MONDAY...WITH A CHANCE OF
THUNDERSTORMS WEDNESDAY THROUGH FRIDAY AS WELL.
&&
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-
870-872-874-876-878-091730-
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 TOW 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-
1216 PM CDT SUN JUN 8 2008
THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF THE OPEN WATERS
OF LAKE MICHIGAN.
.DAY ONE...THIS AFTERNOON AND TONIGHT.
THUNDERSTORMS ARE LIKELY TODAY AND TONIGHT...WITH SOME STORMS
POSSIBLY SEVERE.
.DAYS TWO THROUGH SEVEN...MONDAY THROUGH SATURDAY.
THUNDERSTORMS POSSIBLE MONDAY...AND AGAIN WEDNESDAY THROUGH
FRIDAY.
&&
COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO
MARSILIIn the hours before
Local storm report, Jun 8, 12:58 PM CDT, 43 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1258 PM CDT SUN JUN 08 2008
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
1150 AM HEAVY RAIN ROMEOVILLE 41.65N 88.09W
06/08/2008 M1.02 INCH WILL IL NWS EMPLOYEE
RAINFALL IN 20 MINUTES
&&
CMOTTLocal storm report, Jun 8, 1:15 PM CDT, 26 minutes before
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</html>Local storm report, Jun 8, 1:18 PM CDT, 23 minutes before
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</html>Local storm report, Jun 8, 1:21 PM CDT, 20 minutes before
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</html>Local storm report, Jun 8, 1:39 PM CDT, 2 minutes before
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</html>Local storm report, Jun 8, 1:40 PM CDT, 1 minute 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 |
|---|---|---|---|---|
| Jun 7, 7:27 PM CDT | Severe Thunderstorm Warning | LOT | Lake | 33 min |
| Jun 7, 7:50 PM CDT | Tornado Warning | LOT | Lake | 36 min |
| Jun 7, 7:54 PM CDT | Special Marine Warning | LOT | 82 min | |
| Jun 8, 9:39 AM CDT | Severe Thunderstorm Warning | LOT | Boone, DeKalb, McHenry, Ogle, Winnebago | 36 min |
| Jun 8, 10:01 AM CDT | Special Marine Warning | LOT | 119 min | |
| Jun 8, 10:30 AM CDT | Severe Thunderstorm Warning | LOT | Boone, Lake, McHenry | 60 min |
| Jun 8, 10:55 AM CDT | Severe Thunderstorm Warning | LOT | Boone, DeKalb, Kane, Lee, McHenry, Ogle and 1 more | 42 min |
| Jun 8, 11:30 AM CDT | Severe Thunderstorm Warning | LOT | Boone, Cook, DeKalb, DuPage, Kane, Kendall and 7 more | 60 min |
| Jun 8, 11:58 AM CDT | Special Marine Warning | LOT | 92 min | |
| Jun 8, 12:31 PM CDT | Severe Thunderstorm Warning | LOT | Cook, DeKalb, DuPage, Grundy, Kane, Kankakee and 3 more | 44 min |
| Jun 8, 12:51 PM CDT | Special Marine Warning | LOT | 84 min | |
| Jun 8, 1:27 PM CDT | Special Marine Warning | LOT | 33 min | |
| Jun 8, 2:16 PM CDT | Special Marine Warning | LOT | 47 min | |
| Jun 8, 3:52 PM CDT | Lakeshore Flood Warning | LOT | 8 hr | |
| Jun 8, 3:59 PM CDT | Flash Flood Watch | LOT | Boone, DeKalb, DuPage, Ford, Grundy, Iroquois and 10 more | 35 hr |
Nearby
Severe Thunderstorm Warnings in Indiana, 2008Every severe thunderstorm warning in 2008
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.