Watches, Warnings & Advisories



2 products issued by NWS for: Markham IL

Hazardous Weather Outlook

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
323 AM CST Tue Feb 18 2025

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-190930-
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-
323 AM CST Tue Feb 18 2025 /423 AM EST Tue Feb 18 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...

  Elevated Excessive Cold Risk.
  Limited Snow Risk in Porter County, IN.

DISCUSSION...

This morning, wind chills between 20 below and 30 below zero are
expected in northern Illinois while wind chills between 15 below
and 20 below zero are expected in northwest Indiana.

Tonight, wind chills as low as 20 below zero will be possible once
again in portions of interior northern Illinois.

Lake effect snow may cause light snow accumulations in northeast
Porter County, IN today.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday...
  Elevated Excessive Cold Risk.
  Limited Snow Risk.
Thursday through Friday...
  Limited Excessive Cold Risk.

DISCUSSION...

Wind chills as low as 15 below to 20 below zero are expected
Wednesday morning and Thursday morning. Wind chills as low as 10
below zero are expected Friday morning.

Light snow accumulations may occur near and east of I-55 late
Wednesday.

.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

$$



Cold Weather Advisory

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
304 AM CST Tue Feb 18 2025

ILZ006-012-013-019>021-023-032-033-039-103>108-181800-
/O.CON.KLOT.CW.Y.0005.000000T0000Z-250218T1800Z/
Lake IL-Kane-DuPage-La Salle-Kendall-Grundy-Kankakee-Livingston-
Iroquois-Ford-Northern Cook-Central Cook-Southern Cook-Northern
Will-Southern Will-Eastern Will-
Including the cities of Coal City, Yorkville, Oak Lawn, Mokena,
Manhattan, Elgin, Dwight, Park Forest, Bolingbrook, Orland Park,
Joliet, Channahon, Beecher, Buffalo Grove, Paxton, Des Plaines,
Gurnee, Naperville, Carol Stream, Oak Forest, Gibson City,
Morris, Oswego, Pontiac, Ottawa, Waukegan, Chicago, Plainfield,
Crete, Kankakee, Cicero, Wilmington, Plano, Watseka, Oak Park, La
Grange, Aurora, Calumet City, Schaumburg, Mendota, Mundelein,
Peotone, Evanston, Wheaton, Bradley, Lombard, Marseilles, Gilman,
Northbrook, La Salle, Downers Grove, Streator, Fairbury,
Bourbonnais, Palatine, Lemont, and Minooka
304 AM CST Tue Feb 18 2025

...COLD WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON CST TODAY...

* WHAT...Very cold wind chills as low as 20 below to 25 below zero
  expected.

* WHERE...Portions of central, east central, north central, and
  northeast Illinois.

* WHEN...Until noon CST today.

* IMPACTS...The dangerously cold wind chills could cause frostbite
  on exposed skin in as little as 30 minutes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use caution while traveling outside. Wear appropriate clothing, a
hat, and gloves.

&&

$$

Petr