243 
WWUS73 KLOT 130742
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
242 AM CDT Thu Aug 13 2026

ILZ003-004-008-010>013-019>021-023-032-033-039-105>108-INZ001-002-
010-011-019-131400-
/O.NEW.KLOT.FG.Y.0013.260813T0742Z-260813T1400Z/
Winnebago-Boone-Ogle-Lee-De Kalb-Kane-DuPage-La Salle-Kendall-
Grundy-Kankakee-Livingston-Iroquois-Ford-Southern Cook-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Rochelle, Mokena, Portage, Channahon,
Watseka, Hammond, Orland Park, Crete, Pontiac, Dwight, Byron,
Morocco, Oswego, Oxford, Fairbury, Gary, Aurora, Lemont, Valparaiso,
Downers Grove, Streator, Beecher, Chesterton, Yorkville, Fowler,
Peotone, La Salle, Bradley, Minooka, Elgin, Manhattan, Wheaton,
Lombard, Marseilles, Sycamore, Bourbonnais, Rockford, Dixon, Mendota,
Kankakee, Park Forest, Bolingbrook, Plainfield, Rensselaer,
Naperville, DeMotte, Ottawa, Calumet City, Carol Stream, Gilman,
Belvidere, Oak Forest, Joliet, Merrillville, Kentland, Oregon, Gibson
City, DeKalb, Morris, Plano, Wilmington, Roselawn, Coal City, and
Paxton
242 AM CDT Thu Aug 13 2026 /342 AM EDT Thu Aug 13 2026/

...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CDT /10 AM EDT/ THIS
MORNING...

* WHAT...Visibility one quarter mile or less in dense fog.

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

* WHEN...Until 9 AM CDT /10 AM EDT/ this morning.

* IMPACTS...Low visibility could make driving conditions hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.

&&

$$

Ratzer

276 
WWUS73 KLOT 131356
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
856 AM CDT Thu Aug 13 2026

ILZ003-004-008-010>013-019>021-023-032-033-039-105>108-INZ001-002-
010-011-019-131500-
/O.EXP.KLOT.FG.Y.0013.000000T0000Z-260813T1400Z/
Winnebago-Boone-Ogle-Lee-De Kalb-Kane-DuPage-La Salle-Kendall-
Grundy-Kankakee-Livingston-Iroquois-Ford-Southern Cook-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Elgin, Gilman, Bolingbrook, Oregon,
Marseilles, Plainfield, Hammond, Channahon, Oxford, Gibson City,
Bradley, Manhattan, Belvidere, Kentland, Merrillville, Fowler,
DeKalb, Carol Stream, Rensselaer, Pontiac, Morocco, Mokena, Ottawa,
Valparaiso, Downers Grove, Yorkville, Joliet, Bourbonnais, Lombard,
Streator, Naperville, Byron, Dixon, La Salle, Paxton, Beecher, Plano,
Orland Park, Chesterton, Crete, Oak Forest, Rochelle, Coal City,
Wheaton, Sycamore, Watseka, Kankakee, Fairbury, Park Forest, Dwight,
Gary, Rockford, DeMotte, Lemont, Portage, Calumet City, Aurora,
Peotone, Roselawn, Morris, Wilmington, Oswego, Minooka, and Mendota
856 AM CDT Thu Aug 13 2026 /956 AM EDT Thu Aug 13 2026/

...DENSE FOG ADVISORY WILL EXPIRE AT 9 AM CDT /10 AM EDT/ THIS
MORNING...

Patchy fog is still ongoing, but visibilities continue to improve
providing confidence to allow the advisory to expire.

$$

DK