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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
250 PM CST Mon Jan 20 2020

Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Lake IN-Porter-Newton-Jasper-Benton-
250 PM CST Mon Jan 20 2020 /350 PM EST Mon Jan 20 2020/

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

.DAY ONE...Tonight.

Weather hazards expected...

  Limited Excessive Cold Risk.

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

Tuesday Morning...
  Limited Excessive Cold Risk.
Thursday and Friday...
  Limited Snow Risk.


  Spotter activation will not be necessary through tonight.


Hydrologic Outlook

Hydrologic Outlook

Hydrologic Outlook
National Weather Service Chicago IL
922 AM CST Mon Jan 20 2020 /1022 AM EST Mon Jan 20 2020/

...Risk for River Ice and Ice Jams Increasing...

River ice has developed on several northern Illinois and
northwest Indiana rivers early this week, including formation of
some ice jams. Favorable conditions will continue for river ice
and probable ice jam development for the following rivers and
their tributaries...Rock, Fox, DuPage, Des Plaines, and Kankakee.
This risk will continue through late this week.

Due to the current well below freezing temperatures through early
this week, conditions will remain favorable for rapid river ice
formation. Ice jams will also be likely, with the highest risk
along the Rock, Fox, and lower Kankakee Rivers. Ice jams may
cause rises on area rivers with little warning.

This outlook means that elevated river levels and potential
impacts are possible, but the timing, extent, and severity remain
uncertain. Persons with interests along area rivers should closely
monitor the latest forecasts.


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