Alert archive / Illinois / River Flood Warnings in 2011

River Flood Warning 33, NWS Chicago, IL

April 26, 2011Lake County, Illinois

NWS Chicago, IL issued this river flood warning at Apr 26, 2011, 4:26 AM CDT for Lake County, Illinois. It was in force for 6 days.

The area

The counties it named.

The facts

Issued: Apr 26, 2011, 4:26 AM CDT (09:26 UTC)
Expired: May 2, 2011, 3:45 PM CDT
In force: 6 days
Issued by: NWS Chicago, IL
Flood severity: Minor

County Lake County, IL

The radar

The Chicago radar (KLOT), 85 km from the middle of the area, began a volume at 09:30 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 river

Written for the forecast point Des Plaines River at Lincolnshire (LDRI2). The gauge peaked at 12.15 ft at Apr 28, 2011, 9:00 AM CDT.

Action stage: 11.5 ft
Minor stage: 12.5 ft
Moderate stage: 14 ft
Major stage: 15.5 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 05528100, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood 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 river flood warning went out at Apr 26, 3:35 AM CDT, 51 minutes earlier.

Area forecast discussion, Apr 26, 3:35 AM CDT, 51 minutes before

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Hazardous weather outlook, Apr 26, 4:08 AM CDT, 18 minutes before

HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
408 AM CDT TUE APR 26 2011

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
270915-
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-
408 AM CDT TUE APR 26 2011 /508 AM EDT TUE APR 26 2011/

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

.DAY ONE...TODAY AND TONIGHT.

  WEATHER HAZARDS EXPECTED:

  SCATTERED THUNDERSTORMS...SOME OF WHICH MAY PRODUCE:
  BRIEF GUSTY WINDS TO 45 MPH...AND SMALL HAIL.

  AREAS AFFECTED AND TIMING:

  SCATTERED THUNDERSTORMS WILL DEVELOP ACROSS THE REGION BY EARLY
  AFTERNOON. A FEW STORMS MAY LINGER INTO THIS EVENING BEFORE
  DISSIPATING WITH THE LOSS OF DIURNAL HEATING.

  IN ADDITION TO THE THUNDER THREAT...WINDS ARE EXPECTED TO VEER
  TO THE SOUTHWEST AND GUST TO 30 MPH OR MORE THIS AFTERNOON.

  DISCUSSION:

LOW PRESSURE OVER SOUTHEAST IOWA WILL TRACK WEST OF THE REGION
TODAY...ALLOWING WINDS TO VEER INTO THE SOUTH AND EVENTUALLY
SOUTHWEST...DRAWING MILDER AIR ACROSS THE AREA. THIS...IN
COMBINATION WITH COOLING ALOFT WILL RESULT IN ENOUGH INSTABILITY
TO SUPPORT SCATTERED THUNDERSTORMS THIS AFTERNOON AND EARLY
EVENING. AS SURFACE WINDS TURN SOUTHWEST EARLY THIS
AFTERNOON...WIND PROFILES WILL BECOME MORE SUPPORTIVE OF
SHORT...NARROW LINES OF THUNDERSTORMS SUGGESTING A POTENTIAL FOR
BRIEF STRONG WIND GUSTS.

PORTIONS OF THE KANKAKEE...DES PLAINES...IROQUOIS...AND ILLINOIS
RIVERS WILL REMAIN IN FLOOD. MANY OTHER AREA RIVERS WILL BE NEAR
BANKFULL.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

PORTIONS OF THE KANKAKEE...DES PLAINES...IROQUOIS...AND ILLINOIS
RIVERS WILL REMAIN IN FLOOD. MANY OTHER AREA RIVERS WILL BE NEAR
BANKFULL.

THERE IS ANOTHER CHANCE OF THUNDERSTORMS ABOUT SATURDAY.

.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>745-270915-
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-
408 AM CDT TUE APR 26 2011

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.

STRONG WINDS AND HIGH WAVES WILL LEAD TO HAZARDOUS CONDITIONS FOR
SMALL CRAFT THROUGH THIS EVENING.

THERE IS A CHANCE OF THUNDERSTORMS THIS AFTERNOON.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

STRONG WINDS AND HIGH WAVES MAY LEAD TO HAZARDOUS CONDITIONS THAT
MAY AGAIN AFFECT THE NEARSHORE WATERS THURSDAY INTO THURSDAY
NIGHT.

THERE IS ANOTHER CHANCE OF THUNDERSTORMS ON SATURDAY.

&&

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-
870-872-874-876-878-270915-
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-
408 AM CDT TUE APR 26 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR THE OPEN WATERS OF LAKE
MICHIGAN.

.DAY ONE...TODAY AND TONIGHT.

GALE FORCE EAST WINDS ARE EXPECTED ACROSS NORTHERN LAKE MICHIGAN
TODAY.

.DAYS TWO THROUGH SEVEN...WEDNESDAY THROUGH MONDAY.

THERE IS A CHANCE OF THUNDERSTORMS ACROSS LAKE MICHIGAN
ON SATURDAY.

&&

COMPLETE FORECAST INFORMATION IS AVAILABLE ON THE NWS CHICAGO
WEBPAGE: WEATHER.GOV/CHICAGO

MERZLOCK

The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 26, 9:44 AM CDT	River Flood Warning	LOT	Kankakee	4 days
Apr 26, 9:44 AM CDT	River Flood Warning	LOT	Lake	6 days
Apr 26, 9:44 AM CDT	River Flood Warning	LOT	Lake	4 days
Apr 26, 9:44 AM CDT	River Flood Warning	LOT	Kane, Kendall	36 hr
Apr 26, 10:15 AM CDT	River Flood Advisory	LOT	Cook	57 hr
Apr 26, 10:15 AM CDT	River Flood Advisory	LOT	Cook	3 days
Apr 26, 10:15 AM CDT	River Flood Advisory	LOT	Kane, McHenry	58 hr
Apr 26, 10:15 AM CDT	River Flood Advisory	LOT	LaSalle	25 hr
Apr 26, 10:15 AM CDT	River Flood Advisory	LOT	Will	25 hr
Apr 26, 11:27 AM CDT	River Flood Warning	LOT	Grundy	58 hr
Apr 26, 3:53 PM CDT	Flood Watch	LOT	DuPage, Ford, Iroquois, Kankakee	39 hr
Apr 26, 9:44 AM CDT	River Flood Warning	LOT	Jasper	5 days
Apr 26, 9:44 AM CDT	River Flood Warning	LOT	Newton	7 days

Nearby

River Flood Warnings in Illinois, 2011 Every river flood warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.