Dense Fog Advisory
URGENT - WEATHER MESSAGE
National Weather Service Indianapolis IN
217 AM EST Fri Nov 21 2025
INZ021-028>031-035>049-211500-
/O.CON.KIND.FG.Y.0008.000000T0000Z-251121T1500Z/
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-
Boone-Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-
Putnam-Hendricks-Marion-Hancock-Henry-
Including the cities of Lebanon, Union City, Muncie,
Indianapolis, Frankfort, Noblesville, Rockville, Fishers, Tipton,
Flora, Delphi, Covington, Attica, West Lafayette, Fairview Park,
Anderson, Clinton, Plainfield, Brownsburg, Zionsville, New
Castle, Greenfield, Williamsport, Rosedale, Winchester,
Veedersburg, Farmland, Carmel, Parker City, Danville, Montezuma,
Greencastle, Crawfordsville, Kokomo, Lafayette, and West Lebanon
217 AM EST Fri Nov 21 2025
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 10 AM EST THIS
MORNING...
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Portions of central, east central, north central, and west
central Indiana.
* WHEN...Until 10 AM EST 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.
&&
$$
Ryan
URGENT - WEATHER MESSAGE
National Weather Service Lincoln IL
1110 PM CST Thu Nov 20 2025
ILZ031-036>038-040>051-053-211500-
/O.CON.KILX.FG.Y.0015.000000T0000Z-251121T1500Z/
Woodford-Fulton-Tazewell-McLean-Schuyler-Mason-Logan-De Witt-
Piatt-Champaign-Vermilion-Cass-Menard-Scott-Morgan-Sangamon-Macon-
Including the cities of Havana, Pekin, Decatur, Beardstown,
Winchester, Canton, Bloomington, Urbana, Springfield, Petersburg,
Eureka, Monticello, Lincoln, Normal, Clinton, Rushville,
Champaign, Jacksonville, and Danville
1110 PM CST Thu Nov 20 2025
...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 9 AM CST FRIDAY...
* WHAT...Visibility less than one mile in dense fog.
* WHERE...Portions of central, east central, and west central
Illinois.
* WHEN...Until 9 AM CST Friday.
* IMPACTS...Low visibility could make driving conditions hazardous.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If driving, slow down, use your headlights, and leave plenty of
distance ahead of you.
&&
$$
Copple
URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
720 PM CST Thu Nov 20 2025
ILZ032-033-039-INZ010-011-019-211130-
/O.NEW.KLOT.FG.Y.0014.251121T0120Z-251121T1500Z/
Livingston-Iroquois-Ford-Newton-Jasper-Benton-
Including the cities of Fowler, Dwight, Rensselaer, Oxford,
Paxton, Morocco, Gibson City, Watseka, Fairbury, Gilman, DeMotte,
Kentland, Roselawn, and Pontiac
720 PM CST Thu Nov 20 2025 /820 PM EST Thu Nov 20 2025/
...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM CST /10 AM EST/ FRIDAY...
* WHAT...Visibility oVisibility one quarter mile or less in dense
fog.
* WHERE...In Illinois, Livingston, Ford, and Iroquois Counties. In
Indiana, Benton, Jasper, and Newton Counties.
* WHEN...Until 9 AM CST /10 AM EST/ Friday.
* 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.
&&
$$
Ratzer
Hazardous Weather Outlook
Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
849 PM CST Thu Nov 20 2025
ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-220300-
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
849 PM CST Thu Nov 20 2025 /949 PM EST Thu Nov 20 2025/
This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.
.DAY ONE...Tonight.
Weather hazards expected...
Limited Fog Risk.
DISCUSSION...
Areas of dense fog are likely overnight south of an approximately
Pontiac to Valparaiso line. Visibility as low as a quarter mile
is possible in some spots.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be necessary through tonight.
$$
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
912 PM EST Thu Nov 20 2025
LMZ844>849-212015-
St Joseph to South Haven MI-South Haven to Holland MI-
Holland to Grand Haven MI-Grand Haven to Whitehall MI-
Whitehall to Pentwater MI-Pentwater to Manistee MI-
912 PM EST Thu Nov 20 2025
This hazardous weather outlook is for the nearshore waters from
St Joseph to Manistee.
.DAY ONE...Tonight
Areas of fog can be expected to reduce visibilities tonight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
Wind and waves may be hazardous to small craft Saturday night and
Sunday.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Grand Rapids MI
912 PM EST Thu Nov 20 2025
MIZ037>040-043>046-050>052-056>059-064>067-071>074-212015-
Mason-Lake-Osceola-Clare-Oceana-Newaygo-Mecosta-Isabella-Muskegon-
Montcalm-Gratiot-Ottawa-Kent-Ionia-Clinton-Allegan-Barry-Eaton-
Ingham-Van Buren-Kalamazoo-Calhoun-Jackson-
912 PM EST Thu Nov 20 2025
This hazardous weather outlook is for portions of southwest Lower
Michigan.
.DAY ONE...Tonight
Areas of fog can be expected to reduce visibilities tonight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed.
$$
Hazardous Weather Outlook
National Weather Service Lincoln IL
249 PM CST Thu Nov 20 2025
ILZ027>031-036>038-040>057-061>063-066>068-071>073-211200-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-Schuyler-
Mason-Logan-De Witt-Piatt-Champaign-Vermilion-Cass-Menard-Scott-
Morgan-Sangamon-Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby-
Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence-
249 PM CST Thu Nov 20 2025
This Hazardous Weather Outlook is for central Illinois, east
central Illinois, southeast Illinois and west central Illinois.
.DAY ONE...Tonight.
Areas of fog will develop again this evening, with the lowest
visibility occurring from about Jacksonville to Danville, southward
to I-70. The visibility will start to improve as rain moves into the
region late tonight.
.DAYS TWO THROUGH SEVEN...Friday through Wednesday.
No hazardous weather is expected at this time.
.SPOTTER INFORMATION STATEMENT...
Spotter activation is not anticipated tonight.
$$
Geelhart
Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
115 PM CST Thu Nov 20 2025
IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-210930-
Buchanan-Delaware-Dubuque-Benton-Linn-Jones-Jackson-Iowa-Johnson-
Cedar-Clinton-Muscatine-Scott-Keokuk-Washington-Louisa-Jefferson-
Henry IA-Des Moines-Van Buren-Lee-Jo Daviess-Stephenson-Carroll-
Whiteside-Rock Island-Henry IL-Bureau-Putnam-Mercer-Henderson-
Warren-Hancock-McDonough-Scotland-Clark-
115 PM CST Thu Nov 20 2025
This Hazardous Weather Outlook is for portions of north central
Illinois...northwest Illinois...west central Illinois...east
central Iowa...northeast Iowa...southeast Iowa and northeast
Missouri.
.DAY ONE...THIS AFTERNOON AND TONIGHT
Patchy dense fog is possible again tonight. At this time it is too
soon to tell where this fog may develop.
.DAYS TWO THROUGH SEVEN...FRIDAY THROUGH WEDNESDAY
The probability for widespread hazardous weather is low.
.SPOTTER INFORMATION STATEMENT...
Spotter activation will not be needed today or tonight.
$$
Gibbs/Gunkel
