WWUS73 KLOT 161423
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
923 AM CDT Fri Oct 16 2026

ILZ003>005-008-010>012-170030-
/O.CON.KLOT.FZ.W.0002.261017T1000Z-261017T1300Z/
Winnebago-Boone-McHenry-Ogle-Lee-De Kalb-Kane-
Including the cities of Aurora, Woodstock, McHenry, Algonquin,
Rockford, Rochelle, Dixon, DeKalb, Elgin, Sycamore, Byron, Oregon,
Belvidere, and Crystal Lake
923 AM CDT Fri Oct 16 2026

...FREEZE WARNING REMAINS IN EFFECT FROM 5 AM TO 8 AM CDT SATURDAY...

* WHAT...Sub-freezing temperatures are expected.

* WHERE...Boone, De Kalb, Lee, Ogle, Winnebago, Kane, and McHenry
  Counties.

* WHEN...From 5 AM to 8 AM CDT Saturday.

* IMPACTS...Frost and freeze conditions could kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

ILZ006-170030-
/O.CON.KLOT.FR.Y.0005.261017T1000Z-261017T1300Z/
Lake IL-
Including the cities of Waukegan, Buffalo Grove, Gurnee, and
Mundelein
923 AM CDT Fri Oct 16 2026

...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 8 AM CDT SATURDAY
AWAY FROM LAKE MICHIGAN...

* WHAT...Temperatures as low as 32 will result in frost formation.

* WHERE...Lake IL County.

* WHEN...From 5 AM to 8 AM CDT Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

ILZ019-020-170030-
/O.CON.KLOT.FR.Y.0005.261017T1000Z-261017T1300Z/
La Salle-Kendall-
Including the cities of Yorkville, Streator, Mendota, Plano, Ottawa,
Marseilles, Oswego, and La Salle
923 AM CDT Fri Oct 16 2026

...FROST ADVISORY REMAINS IN EFFECT FROM 5 AM TO 8 AM CDT SATURDAY...

* WHAT...Temperatures as low as 34 will result in frost formation.

* WHERE...La Salle and Kendall Counties.

* WHEN...From 5 AM to 8 AM CDT Saturday.

* IMPACTS...Frost could harm sensitive outdoor vegetation. Sensitive
  outdoor plants may be killed if left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

INZ002-170030-
/O.CON.KLOT.WI.Y.0010.261016T1800Z-261017T0300Z/
Porter-
Including the cities of Portage, Chesterton, and Valparaiso
923 AM CDT Fri Oct 16 2026

...WIND ADVISORY REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON TO 10 PM
CDT THIS EVENING ALONG THE LAKE MICHIGAN SHORE...

* WHAT...Near the Lake Michigan shore northerly winds 20 to 30 mph
  with a few gusts to 45 mph are expected.

* WHERE...Porter County along the Lake Michigan shore.

* WHEN...From 1 PM this afternoon to 10 PM CDT this evening.

* IMPACTS...Gusty winds will blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

&&

$$

Birk