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Dense Fog Advisory


URGENT - WEATHER MESSAGE
National Weather Service Saint Louis MO
934 PM CDT Wed Oct 21 2020

ILZ095>097-MOZ018-019-026-027-034>036-041-042-050-051-221200-
/O.NEW.KLSX.FG.Y.0014.201022T0234Z-201022T1200Z/
Adams IL-Audrain MO-Boone MO-Brown IL-Callaway MO-Knox MO-
Lewis MO-Marion MO-Monroe MO-Montgomery MO-Pike IL-Pike MO-
Ralls MO-Shelby MO-
Including the cities of Bowling Green, Columbia, Fulton,
Hannibal, Mexico, Mount Sterling, Pittsfield, and Quincy
934 PM CDT Wed Oct 21 2020

...DENSE FOG ADVISORY IN EFFECT UNTIL 7 AM CDT THURSDAY...

* WHAT...Visibility as low as one quarter mile in dense fog.

* WHERE...Portions of central, east central and northeast
  Missouri and west central Illinois.

* WHEN...Until 7 AM CDT Thursday.

* IMPACTS...Hazardous driving conditions due to low visibility.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

Pfahler


Special Weather Statement


Special Weather Statement
National Weather Service Chicago/Romeoville
1048 PM CDT Wed Oct 21 2020

ILZ020-021-023-106-107-220430-
Grundy IL-Southern Will IL-Kendall IL-Kankakee IL-Northern Will IL-
1048 PM CDT Wed Oct 21 2020

...SIGNIFICANT WEATHER ADVISORY FOR SOUTHEASTERN KENDALL...
SOUTHWESTERN WILL...GRUNDY AND NORTHWESTERN KANKAKEE COUNTIES UNTIL
1130 PM CDT...

At 1048 PM CDT, Doppler radar was tracking a strong thunderstorm 4
miles southwest of Mazon, or 10 miles northwest of Dwight, moving
northeast at 45 mph.

Penny size hail will be possible with this storm.

Locations impacted include...
Joliet, New Lenox, Mokena, Frankfort, Morris, Channahon, Minooka,
Braidwood, Wilmington, Coal City, Dwight, Shorewood, Manhattan,
Ingalls Park, Diamond, Elwood, Gardner, Lakewood Shores, Mazon and
Braceville.

Including the following interstates...
 I-55 between mile markers 221 and 254.
 I-80 between mile markers 106 and 138.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

&&

LAT...LON 4135 8859 4154 8825 4153 8790 4116 8792
      4111 8850 4111 8859
TIME...MOT...LOC 0348Z 232DEG 37KT 4121 8855

$$

FRIEDLEIN

Special Weather Statement
National Weather Service Quad Cities IA/IL
1033 PM CDT Wed Oct 21 2020

ILC067-IAC111-MOC045-220400-
Hancock-Lee-Clark-
1033 PM CDT Wed Oct 21 2020

...A STRONG THUNDERSTORM WILL AFFECT NORTHWESTERN HANCOCK...CENTRAL
LEE AND CENTRAL CLARK COUNTIES UNTIL 1100 PM CDT...

At 1033 PM CDT, a strong thunderstorm was located over Kahoka, moving
northeast at 45 mph.

Pea size hail is possible with this storm.

Locations impacted include...
Fort Madison, Kahoka, Nauvoo, West Point, Donnellson, Montrose,
Wayland, Franklin, New Boston, Niota, St. Francisville, Pontoosuc,
Revere, Charleston, Nauvoo State Park, Clark County Fairgrounds, Lee
County Fairgrounds, Sawyer, Peaksville and Bluff Park.

If outdoors, consider seeking shelter inside a building.

LAT...LON 4033 9171 4042 9182 4077 9144 4061 9120
TIME...MOT...LOC 0333Z 226DEG 40KT 4042 9170

$$

McClure

Special Weather Statement
National Weather Service Lincoln IL
950 PM CDT Wed Oct 21 2020

ILZ027>031-036>038-040-041-220600-
Knox-Stark-Peoria-Marshall-Woodford-Fulton-Tazewell-McLean-
Schuyler-Mason-
Including the cities of Galesburg, Toulon, Peoria, Lacon, Eureka,
Canton, Pekin, Bloomington, Normal, Rushville, and Havana
950 PM CDT Wed Oct 21 2020

...AREAS OF DENSE FOG DEVELOPING OVERNIGHT...

As a warm front lifts northward, areas of dense fog are expected
to develop over central Illinois. Much of this will be after
midnight from about Macomb to Bloomington northward, but will
improve south of I-74 by around 5 am. Use caution when traveling
tonight, and do not use your high beam headlights.

$$

Special Weather Statement
National Weather Service Lincoln IL
950 PM CDT Wed Oct 21 2020

ILZ042>057-061-220600-
Logan-De Witt-Piatt-Champaign-Vermilion-Cass-Menard-Scott-Morgan-
Sangamon-Christian-Macon-Moultrie-Douglas-Coles-Edgar-Shelby-
Including the cities of Lincoln, Clinton, Monticello, Champaign,
Urbana, Danville, Beardstown, Petersburg, Winchester,
Jacksonville, Springfield, Taylorville, Decatur, Sullivan,
Tuscola, Charleston, Mattoon, Paris, and Shelbyville
950 PM CDT Wed Oct 21 2020

...AREAS OF DENSE FOG DEVELOPING LATE EVENING...

As a warm front lifts northward, areas of dense fog are expected
to develop over central Illinois. Much of this will be south of a
Jacksonville to Paris line late this evening, but will spread
north of the I-72 corridor. Visibility is expected to improve by
around 4 am. Use caution when traveling tonight, and do not use
your high beam headlights.

$$

Special Weather Statement
National Weather Service Lincoln IL
950 PM CDT Wed Oct 21 2020

ILZ062-063-066>068-071>073-220600-
Cumberland-Clark-Effingham-Jasper-Crawford-Clay-Richland-Lawrence-
Including the cities of Greenup, Marshall, Effingham, Newton,
Robinson, Flora, Olney, and Lawrenceville
950 PM CDT Wed Oct 21 2020

...AREAS OF DENSE FOG LATE THIS EVENING...

As a warm front lifts northward, patchy dense fog will occur over
southeast Illinois. Improvement is expected after midnight as the
front moves further away. Use caution when traveling tonight, and
do not use your high beam headlights.

$$

Geelhart


Hazardous Weather Outlook


Hazardous Weather Outlook
National Weather Service Quad Cities IA IL
946 PM CDT Wed Oct 21 2020

IAZ040>042-051>054-063>068-076>078-087>089-098-099-ILZ001-002-007-
009-015>018-024>026-034-035-MOZ009-010-230300-
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-
946 PM CDT Wed Oct 21 2020

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...TONIGHT

Scattered thunderstorms are expected tonight. The primary
threat from these storms will be lightning and heavy rainfall.

Fog is likely overnight, especially south of Interstate 80 ahead
of a lifting warm front. The fog is likely to become dense
reducing visibilities to a quarter mile or less, and if it
becomes widespread enough could require a dense fog advisory.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY

Dense fog is likely across portions of the Outlook area Thursday
morning ahead of a lifting warm front.

Scattered thunderstorms are likely Thursday night, as a cold front
moves through the region. Isolated severe storms are possible
mainly from 5 pm to 11 pm. The main threats will be damaging wind
gusts and large hail, although a tornado cannot be ruled out.
The Storm Prediction Center has a marginal risk across eastern
Iowa and northeast Missouri as well as most of northwest Illinois.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be needed tonight, but is possible
across portions of the outlook area Thursday evening.

$$

Hazardous Weather Outlook...UPDATED
National Weather Service Indianapolis IN
957 PM EDT Wed Oct 21 2020

INZ021-028>031-035>049-051-052-230200-
Carroll-Warren-Tippecanoe-Clinton-Howard-Fountain-Montgomery-Boone-
Tipton-Hamilton-Madison-Delaware-Randolph-Vermillion-Parke-Putnam-
Hendricks-Marion-Hancock-Henry-Vigo-Clay-
Including the cities of Delphi, Flora, Williamsport, West Lebanon,
Lafayette, West Lafayette, Frankfort, Kokomo, Attica, Covington,
Veedersburg, Crawfordsville, Lebanon, Zionsville, Tipton, Fishers,
Carmel, Noblesville, Anderson, Muncie, Winchester, Clinton, Newport,
Rockville, Greencastle, Plainfield, Brownsburg, Danville,
Indianapolis, Greenfield, Cumberland, New Castle, Terre Haute,
Brazil, and Clay City
957 PM EDT Wed Oct 21 2020

This hazardous weather outlook is for the northern half of central
Indiana.

.DAY ONE...Tonight.

Outlook: Isolated thunderstorms. Patchy fog.

Hazards: Brief heavy rainfall and lightning. Reduced visibilities.

Timing: Thunderstorms possible through 3 am. Fog developing sometime
after midnight.

Discussion: The front that brought last night`s rain will lift north
through central Indiana as a warm front, bringing chances for showers
and thunderstorms to locations to its north. Patchy fog will develop
south of the front.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Outlook: A few strong thunderstorms are possible Friday afternoon
and evening. Brief heavy rain, localized flooding, gusty winds and
lightning are possible. More thunderstorms possible at times Sunday
afternoon through Monday night.

Discussion: A strong cold front will drop southeast across central
Indiana Friday afternoon and evening. More frontal systems will bring
additional thunderstorm chances to the area by late weekend.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

.STORM MOTION STATEMENT...

The expected storm motion tonight will be from the southwest around
40 MPH.

&&

More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind

$$

Hazardous Weather Outlook...UPDATED
National Weather Service Indianapolis IN
957 PM EDT Wed Oct 21 2020

INZ053>057-060>065-067>072-230200-
Owen-Morgan-Johnson-Shelby-Rush-Sullivan-Greene-Monroe-Brown-
Bartholomew-Decatur-Knox-Daviess-Martin-Lawrence-Jackson-Jennings-
Including the cities of Spencer, Martinsville, Mooresville,
Greenwood, Franklin, Shelbyville, Rushville, Sullivan, Linton,
Bloomfield, Bloomington, Nashville, Columbus, Greensburg, Vincennes,
Washington, Loogootee, Shoals, Bedford, Mitchell, Seymour,
Brownstown, and North Vernon
957 PM EDT Wed Oct 21 2020

This hazardous weather outlook is for the southern half of central
Indiana.

.DAY ONE...Tonight.

Outlook: Patchy fog.

Hazards: Reduced visibilities.

Timing: Through the night.

Discussion: A warm front will lift north through central Indiana
tonight. Patchy fog will develop along and south of the front.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Outlook: A few strong thunderstorms are possible Friday afternoon
and evening. Brief heavy rain, localized flooding, gusty winds and
lightning are possible. More thunderstorms possible at times Sunday
afternoon through Monday night.

Discussion: A strong cold front will drop southeast across central
Indiana Friday afternoon and evening. More frontal systems will bring
additional thunderstorm chances to the area by late weekend.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated.

&&

More information, along with other weather, hydrological and climate
information can be found at http://weather.gov/ind

$$

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
419 PM CDT Wed Oct 21 2020

ILZ003>006-008-010>013-019>021-023-032-033-039-103>108-INZ001-002-
010-011-019-222130-
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-
419 PM CDT Wed Oct 21 2020 /519 PM EDT Wed Oct 21 2020/

This Hazardous Weather Outlook is for portions of North Central
Illinois...Northeast Illinois and Northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

  Limited Thunderstorm Risk.
  Elevated Fog Risk.

DISCUSSION...

Thunderstorms, scattered in coverage within a broader area of
rain showers, are likely tonight. Severe weather is unlikely,
however some stronger storms capable of small hail are possible.
There is potential for dense fog to develop overnight and into
Thursday morning.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
  Elevated Fog Risk.
Friday...
  Limited Thunderstorm Risk.
Sunday...
  Limited Thunderstorm Risk.


.SPOTTER INFORMATION STATEMENT...

  Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

  Moving toward the northeast at 40-50 mph.

$$

Hazardous Weather Outlook
National Weather Service Lincoln IL
318 PM CDT Wed Oct 21 2020

ILZ027>031-036>038-040>043-047>051-221100-
Cass-De Witt-Fulton-Knox-Logan-Marshall-Mason-McLean-Menard-
Morgan-Peoria-Sangamon-Schuyler-Scott-Stark-Tazewell-Woodford-
318 PM CDT Wed Oct 21 2020

This Hazardous Weather Outlook is for portions of central
Illinois and west central Illinois.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

Scattered thunderstorms will be possible this afternoon and
tonight. Severe weather is not expected at this time.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

South winds gusting to 30 mph Thursday afternoon and could
produce difficult driving conditions for high profile vehicles on
east-west roadways.

Scattered thunderstorms are possible again Thursday night through
Friday afternoon. Severe weather is currently not expected.

There is a chance for light snow Monday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

$$

Hazardous Weather Outlook
National Weather Service Lincoln IL
318 PM CDT Wed Oct 21 2020

ILZ044>046-052-053-221100-
Champaign-Christian-Macon-Piatt-Vermilion-
318 PM CDT Wed Oct 21 2020

This Hazardous Weather Outlook is for portions of central
Illinois and east central Illinois.

.DAY ONE...THIS AFTERNOON AND TONIGHT...

Scattered thunderstorms will be possible tonight. Severe weather
is not expected at this time.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY...

Scattered thunderstorms are possible again Friday. Severe weather
is currently not expected.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated through tonight.

$$

Hazardous Weather Outlook
National Weather Service Northern Indiana
337 PM EDT Wed Oct 21 2020

INZ003>009-012>018-020-022>027-032>034-MIZ077>081-OHZ001-002-004-005-
015-016-024-025-221945-
La Porte-St. Joseph IN-Elkhart-Lagrange-Steuben-Noble-De Kalb-Starke-
Pulaski-Marshall-Fulton IN-Kosciusko-Whitley-Allen IN-White-Cass IN-
Miami-Wabash-Huntington-Wells-Adams-Grant-Blackford-Jay-Berrien-
Cass MI-St. Joseph MI-Branch-Hillsdale-Williams-Fulton OH-Defiance-
Henry-Paulding-Putnam-Van Wert-Allen OH-
337 PM EDT Wed Oct 21 2020 /237 PM CDT Wed Oct 21 2020/

This Hazardous Weather Outlook is for northern Indiana, southwest
Michigan and northwest Ohio.

.DAY ONE...This afternoon and tonight.

Scattered thunderstorms are possible tonight however, severe weather
is not anticipated. Some storms could be capable of locally heavy
rainfall.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

There is a chance of lingering thunderstorms Thursday morning as well
as over the course of the day on Friday. Severe weather is not
anticipated however, storms may be capable of producing locally
heavy rainfall.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

$$

Hazardous Weather Outlook
National Weather Service Saint Louis MO
227 PM CDT Wed Oct 21 2020

ILZ058>060-064-065-069-070-074-079-095>102-MOZ018-019-026-027-
034>036-041-042-047>052-059>065-072>075-084-085-099-221930-
Adams IL-Audrain MO-Bond IL-Boone MO-Brown IL-Calhoun IL-Callaway MO-
Clinton IL-Cole MO-Crawford MO-Fayette IL-Franklin MO-Gasconade MO-
Greene IL-Iron MO-Jefferson MO-Jersey IL-Knox MO-Lewis MO-Lincoln MO-
Macoupin IL-Madison IL-Madison MO-Marion IL-Marion MO-Moniteau MO-
Monroe IL-Monroe MO-Montgomery IL-Montgomery MO-Osage MO-Pike IL-
Pike MO-Ralls MO-Randolph IL-Reynolds MO-Saint Charles MO-
Saint Clair IL-Saint Francois MO-Saint Louis City MO-Saint Louis MO-
Sainte Genevieve MO-Shelby MO-Warren MO-Washington IL-Washington MO-
227 PM CDT Wed Oct 21 2020

This Hazardous Weather Outlook is for portions of eastern and
central Missouri as well as west central and southwest Illinois.

.DAY ONE...Tonight.

There is a chance of thunderstorms northeast Missouri and west
central Illinois.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

There is a chance of thunderstorms late Thursday night through
Friday night, and again Sunday through Monday night.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not anticipated tonight.

$$

Britt

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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