WWUS73 KLOT 190652
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
152 AM CDT Sun Apr 19 2026

ILZ003>006-008-010>013-019>021-023-032-033-039-106>108-INZ001-002-
010-011-019-191700-
/O.UPG.KLOT.FZ.A.0001.260420T0500Z-260420T1400Z/
/O.NEW.KLOT.FZ.W.0001.260420T0500Z-260420T1400Z/
/O.CON.KLOT.FR.Y.0001.000000T0000Z-260419T1400Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Valparaiso, Carol Stream, Beecher,
Hammond, Crystal Lake, Oregon, Fairbury, Naperville, Crete,
Wheaton, McHenry, Waukegan, Kankakee, Gary, Oxford, Minooka,
Bolingbrook, Paxton, Plainfield, Yorkville, Mendota,
Merrillville, La Salle, Plano, Gibson City, Roselawn, Dixon,
Watseka, Coal City, Morocco, Bradley, Oswego, Gurnee, Woodstock,
Gilman, Mokena, Ottawa, Lombard, Rochelle, Elgin, Manhattan,
Byron, Dwight, Portage, DeKalb, DeMotte, Peotone, Algonquin,
Mundelein, Kentland, Belvidere, Rockford, Marseilles, Streator,
Bourbonnais, Morris, Aurora, Channahon, Chesterton, Downers
Grove, Fowler, Wilmington, Sycamore, Rensselaer, Joliet, Pontiac,
and Buffalo Grove
152 AM CDT Sun Apr 19 2026 /252 AM EDT Sun Apr 19 2026/

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM CDT /10 AM EDT/ THIS
MORNING...
...FREEZE WARNING IN EFFECT FROM MIDNIGHT CDT /1 AM EDT/ TONIGHT TO
9 AM CDT /10 AM EDT/ MONDAY...

* WHAT...For the Frost Advisory, temperatures as low as 32 will
  result in frost formation. For the Freeze Warning, sub-freezing
  temperatures as low as 27 expected, with the coldest conditions
  across interior northern Illinois.

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

* WHEN...For the Frost Advisory, until 9 AM CDT /10 AM EDT/ this
  morning. For the Freeze Warning, from midnight CDT /1 AM EDT/
  tonight to 9 AM CDT /10 AM EDT/ Monday.

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

&&

$$

ILZ103-105-191700-
/O.UPG.KLOT.FZ.A.0001.260420T0500Z-260420T1400Z/
/O.NEW.KLOT.FZ.W.0001.260420T0500Z-260420T1400Z/
Northern Cook-Southern Cook-
Including the cities of Evanston, Schaumburg, Calumet City,
Orland Park, Palatine, Oak Forest, Park Forest, Des Plaines,
Northbrook, and Lemont
152 AM CDT Sun Apr 19 2026

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM CDT
MONDAY...

* WHAT...Sub-freezing temperatures as low as 30 expected.

* WHERE...Northern Cook and Southern Cook Counties.

* WHEN...From midnight tonight to 9 AM CDT Monday.

* 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.

&&

$$