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2 products issued by NWS for: Grayslake IL

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
345 AM CDT Sun Apr 14 2024

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-
345 AM CDT Sun Apr 14 2024 /445 AM EDT Sun Apr 14 2024/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

  Minor river flooding will continue in a few locations.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

  Limited Severe Thunderstorm Risk.
  Limited Flooding Risk.
  Limited Non-Thunderstorm Wind Risk.
  Limited Thunderstorm Risk.
  Limited Non-Thunderstorm Wind Risk.
Friday Morning and Friday Night...
  Elevated Frost and Freeze Risk.


Waves of scattered thunderstorms are forecast pre-dawn Tuesday
through early Wednesday. There will likely be an accompanying
severe thunderstorm threat Tuesday afternoon through Tuesday
night. Localized flooding will also be possible.

Winds may gust up to 40 mph or more from the west on Wednesday.

Minor river flooding will continue in a few areas through
early next week.


  Spotter activation will not be necessary through tonight.


Flood Warning

Flood Statement
National Weather Service Chicago IL
840 PM CDT Sat Apr 13 2024

...The Flood Warning continues for the following rivers in Indiana...

  Kankakee River at Shelby affecting Lake IN and Newton Counties.

  Fox River at Algonquin Lock & Dam tailwater affecting Kane,
  McHenry and Lake IL Counties.

For the Kankakee River...including Shelby...Minor flooding is


A Flood Warning means water levels above flood stage are imminent or
may already be occurring. Persons along rivers and streams in the
warned area should take immediate precautions to protect life and

These forecasts are based on observed precipitation as well as
forecast precipitation 24 hours into the future. Changes to the
rainfall forecast, or any additional rainfall after 24 hours, may
cause changes to these river forecasts.

Additional information is available at

The next statement will be issued by Sunday afternoon.


840 PM CDT Sat Apr 13 2024


* WHAT...Minor flooding is occurring and minor flooding is forecast.

* WHERE...Fox River from Johnsburg downstream to Red Gate Road in
  St. Charles, including the Algonquin Lock & Dam tailwater gauge.

* WHEN...Until Monday evening.

* IMPACTS...At 10.0 feet, Winaki Trail and Onaway Trail are
  threatened south of Algonquin.

  - At 7:30 PM CDT Saturday the stage was 9.9 feet.
  - Recent Activity...The maximum river stage in the 24 hours
    ending at 7:30 PM CDT Saturday was 10.1 feet.
  - Forecast...The river is expected to fall below flood stage
    Monday afternoon.
  - Flood stage is 9.5 feet.


LAT...LON 4238 8829 4234 8818 4223 8813 4194 8827
      4195 8838 4219 8830


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