Watches, Warnings & Advisories



2 products issued by NWS for:

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
442 AM CST Sat Feb 15 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-161045-
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-
442 AM CST Sat Feb 15 2025 /542 AM EST Sat Feb 15 2025/

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 Snow, Sleet, and Ice Accumulation Risk.

DISCUSSION...

Snow accumulations of up to 1 to 3 inches are possible in the area
through tonight. In addition, a wintry mix may briefly be observed
in some locations south of Interstate 80 this afternoon and
evening.


.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
  Limited Snow Risk.
Sunday night through Friday morning...
  Elevated Excessive Cold Risk.

DISCUSSION...

Snow showers and flurries are expected to persist into Sunday.
Snow accumulations are most likely to occur in northwest Indiana,
where lake effect snow showers will lead to steadier snowfall
rates.

Bitterly cold temperatures are expected through the upcoming week
with early morning minimum wind chills of -10 to -20 degrees.

.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-INC007-073-089-111-127-152000-

Hydrologic Outlook
National Weather Service Chicago IL
315 PM CST Fri Feb 14 2025

...Risk for river ice formation and ice jams will continue into next
week...

Favorable conditions for river ice development and possible ice jams
will exist through today and then return early next week, impacting
the Rock, Fox, Des Plaines, and Kankakee river basins.

Very cold temperatures, favorable for rapid formation of river ice
on most areas rivers, will continue through today. After a brief
warm-up on Saturday, an additional period of very cold weather is
expected to arrive early next week. Area river gauges indicate
likely ice effects and a few minor ice jams, although no flooding
appears imminent at this time. New and worsening river ice cover
remains possible into tomorrow, which may lead to rises on area
rivers with little warning. A multi-day period of very cold
temperatures next week will likely bring another period of favorable
conditions for heavy river ice and ice jams.

No additional updates to this product are scheduled at this time,
but may be required prior to early next week if temperature
forecasts continue to indicate favorable river ice conditions.
$$

WSL