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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
337 AM CST Mon Nov 30 2020

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-010945-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
337 AM CST Mon Nov 30 2020 /437 AM EST Mon Nov 30 2020/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

  Limited Non thunderstorm wind Risk.
  Elevated Snow Risk in northwest Indiana.
  Significant Lakeshore Flood Risk especially along the Indiana
   Lake Michigan shoreline.

DISCUSSION...

A prolonged period of strong north winds is expected today
through tonight, with gusts to 35 mph across much of the area and
in excess of 40 mph along the Lake Michigan shore. These strong
winds will produce large waves on Lake Michigan which will lead to
lakeshore flooding and erosion along the the Indiana and Illinois
shorelines. The worst conditions are expected across northwest
Indiana.

Accumulating lake effect snow will likely develop this morning
and will persist into early Tuesday morning across northwest
Indiana. Lake effect snow bands may briefly brush the northeast
Illinois Lake Michigan shoreline today as well.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
  Elevated Lakeshore Flood Risk along the Indiana Lake Michigan
   shoreline.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

$$



Lakeshore Flood Advisory

Lakeshore Hazard Message
National Weather Service Chicago IL
1111 AM CST Mon Nov 30 2020

ILZ103-104-010115-
/O.CON.KLOT.LS.Y.0023.000000T0000Z-201201T1200Z/
Northern Cook-Central Cook-
1111 AM CST Mon Nov 30 2020

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 6 AM CST
TUESDAY...

* WHAT...Minor to lakeshore flooding expected due to large waves
  of 10 to 14 feet and high lake levels.

* WHERE...Northern and Central Cook County.

* WHEN...Through 6 AM CST Tuesday. The worst conditions are
  expected during the day today.

* IMPACTS...Large waves combined with high lake levels will lead
  to minor flooding of parking lots, parks, and paths, along the
  immediate lakeshore. Additionally, a one foot increase in the
  water levels is possible along river mouths, canals, and ports
  along Lake Michigan. Stay dry when waves are high!.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Residents on or near the shore should take appropriate action to
protect property from rising water levels.

&&

$$

Lenning




U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
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