Warnings, Watches, Advisories, and Outlooks for La Salle,Illinois
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Hazardous Weather Outlook for La Salle, Illinois

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1205 PM CDT Thu Sep 19 2019

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-
1205 PM CDT Thu Sep 19 2019 /105 PM EDT Thu Sep 19 2019/

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...

Limited Thunderstorm Risk.


Isolated thunderstorms will be seen across north central Illinois
early this afternoon. Scattered thunderstorms are possible
tonight, mainly after midnight. Severe weather is not anticipated,
but locally heavy rainfall may occur.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Limited Thunderstorm Risk.
Limited Severe Thunderstorm Risk.
Elevated Flooding Risk.
Elevated Flooding Risk.
Limited Thunderstorm Risk.
Monday through Wednesday...
Limited Thunderstorm Risk.


A period of potentially heavy rain is possible Saturday night into Sunday
as tropical moisture works its way northward ahead of a cold front.
This would lead to renewed concerns along area rivers that are still
in flood stage from heavy rain this past weekend.


Spotter activation will not be necessary through tonight.


Moving toward the east at 20 mph.

Hydrologic Outlook for La Salle, Illinois

Hydrologic Outlook

Hydrologic Outlook
National Weather Service Chicago IL
106 PM CDT Thu Sep 19 2019 /206 PM EDT Thu Sep 19 2019/

...Heavy rainfall possible this weekend...

A slow-moving frontal system moving into the area by late this
weekend has the potential to produce heavy rainfall across the
area. Rainfall may lead to flooding, especially if occuring in
the Des Plaines, Fox, and Rock River Basins where recent heavy
rainfall has caused elevated water levels.

This flood potential exists from late this weekend through at
least early next week.

Over the last week, 2 to 6 inches of rainfall has occurred across
portions of far northern Illinois and southern Wisconsin, with
5 to 10 inches over the last two weeks. This wet weather has
contributed to elevated soil moisture and water levels.

Heavy rainfall is possible late this weekend as a cold front moves
into the area and interacts with moisture from the remnants of
Tropical Storm Imelda, which has recently moved inland over
southeast Texas. One to three inches of rainfall is possible
across portions of the region, but exact location and amounts of
rainfall are uncertain at this time. If heavy rainfall occurs,
rises on area rivers would be possible, including the possibility
of flooding if heavy rainfall occurs in areas with already
elevated water levels.

This outlook means that elevated water levels and potential
impacts are possible, but not yet certain. Persons should closely
monitor forecasts including the possibility of flood watches,
warnings, and advisories.

Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.

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