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Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
419 AM CDT Mon Mar 25 2019

ILZ003>006-008-010>014-019>023-032-033-039-INZ001-002-010-011-019-
260930-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-DeKalb-Kane-DuPage-Cook-
La Salle-Kendall-Grundy-Will-Kankakee-Livingston-Iroquois-Ford-
Lake IN-Porter-Newton-Jasper-Benton-
419 AM CDT Mon Mar 25 2019 /519 AM EDT Mon Mar 25 2019/

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

.DAY ONE...Today and Tonight.

  Elevated Lakeshore Flood Risk.

DISCUSSION...

Strong northerly winds will result in large waves and cause minor
lakeshore flooding through at least mid day.

Flooding will continue along portions of the Rock, Pecatonica,
and Fox rivers.

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

Wednesday...
  Limited Thunderstorm Risk at night.
Thursday and Friday...
  Limited Flooding Risk.
  Limited Thunderstorm Risk.
Saturday...
  Limited Flooding Risk.
  Limited Non Thunderstorm Wind Risk near Lake Michigan.
  Limited Lakeshore Flood Risk.

DISCUSSION:

A frontal boundary will stall over the region late in the week,
resulting in a couple bouts of moderate to heavy rainfall. There
is a chance for isolated thunderstorms as well. Significant
rainfall totals possible, which could cause renewed river and
stream rises and lowland flooding.

Flooding will continue along portions of the Rock, Pecatonica,
and Fox rivers.


.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

$$



Hydrologic Outlook

Hydrologic Outlook
ILC007-031-037-043-053-063-075-089-091-093-097-099-103-105-111-
141-197-201-INC007-073-089-111-127-252145-

Hydrologic Outlook
National Weather Service Chicago IL
438 AM CDT Mon Mar 25 2019 /538 AM EDT Mon Mar 25 2019/

...Significant Rainfall Late This Week May Lead to Renewed
Flooding ...

A front will stall over the region late in the week, which will
result in a couple bouts of moderate to heavy rainfall from
Thursday night through Saturday. Isolated thunderstorms are also
possible. Significant rainfall totals of one inch to in excess of
two inches are possible, which could cause sharp river and stream
rises and lowland flooding. This includes the most impacted
basins the past few weeks, the Rock, Pecatonica and Fox.

Those living along rivers and streams should prepared for the
possibility of renewed flooding. Stay tuned to the latest
forecasts for updates.

$$

Castro



Lakeshore Flood Advisory

Lakeshore Hazard Message
National Weather Service Chicago IL
401 AM CDT Mon Mar 25 2019

ILZ006-014-INZ001-251715-
/O.CON.KLOT.LS.Y.0002.000000T0000Z-190325T1800Z/
Lake IL-Cook-Lake IN-
401 AM CDT Mon Mar 25 2019

...LAKESHORE FLOOD ADVISORY REMAINS IN EFFECT UNTIL 1 PM CDT THIS
AFTERNOON...

* LAKE SHORE FLOODING...Onshore winds of 30 to 35 mph will produce
  waves of 7 to 10 ft. The large waves and strong winds will
  drive up lake levels, which are already well above average.

* TIMING...Through mid day Monday.

* IMPACTS...Minor flooding is likely along the Illinois and Lake
  County Indiana shoreline, including along the Chicago
  lakefront bike path in the typical flood prone areas.

* SAFETY...Avoid flood prone areas along the lakeshore and stay
  off of structures such as piers, jetties and breakwalls.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Lakeshore Flood Advisory indicates that onshore winds will
generate flooding of low areas along the lakeshore.

&&

$$

KMD



U.S. Dept. of Commerce
NOAA National Weather Service
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Silver Spring, MD 20910
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Page last modified: May 16, 2007
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