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Illinois, McHenry

Dense Fog Advisory

Statement as of 1:06 AM CST on February 22, 2017

Expires 10:00 AM EST on February 22, 2017


... Dense fog advisory in effect until 9 am CST this morning...

The National Weather Service in Chicago has issued a dense fog
advisory, which is in effect until 9 am CST this morning.

* Visibility... one quarter mile or less at times.

* Impacts... areas of low visibility and rapid changes in
visibility will cause hazardous driving conditions.

Precautionary/preparedness actions...

A dense fog advisory means visibilities will frequently be
reduced to less than one quarter mile. If driving... slow down...
use your headlights... and leave plenty of distance ahead of you.





Marine Fog Advisory

Statement as of 9:56 PM CST on February 21, 2017

Expires 10:00 AM EST on February 22, 2017


... Dense fog advisory remains in effect until 9 am CST
Wednesday...

* visibility... less than one quarter mile.

Precautionary/preparedness actions...

A dense fog advisory means visibilities will frequently be
reduced to less than one mile. Inexperienced mariners...
especially those operating smaller vessels should avoid
navigating in these conditions.





Weather Severe Map
Alaska - Wind Advisory , Winter Weather Advisory , Winter Storm Watch , Blizzard Warning
Arkansas - Dense Fog Advisory
American Samoa - Flash Flood Watch
California - Flood Warning, Areal Flood Warning , Areal Flood Warning , Areal Flood Warning , Flood Warning , Areal Flood Advisory , High Surf Advisory , Flash Flood Watch , Wind Advisory , Winter Weather Advisory , Winter Storm Warning , Hydrologic Statement , Hydrologic Statement, Avalanche Warning
Colorado - Winter Storm Watch , Winter Weather Advisory , Fire Weather Warning
Florida - Flood Warning
Idaho - Areal Flood Warning , Flood Warning , Flood Warning, Areal Flood Warning , Areal Flood Watch , Areal Flood Advisory , Areal Flood Watch , Areal Flood Advisory, Flood Watch , Winter Weather Advisory
Illinois - Dense Fog Advisory , Special Statement , Hydrologic Statement
Indiana - Dense Fog Advisory
Iowa - Flood Warning , Winter Storm Watch , Special Statement
Kentucky - Public Information Statement
Michigan - Dense Fog Advisory
Minnesota - Flood Warning , Winter Storm Watch , Dense Fog Advisory
Missouri - Dense Fog Advisory , Special Statement
Montana - Areal Flood Warning , Areal Flood Watch , Winter Weather Advisory , Public Information Statement
Nebraska - Winter Storm Watch
Nevada - Areal Flood Warning , Areal Flood Warning , Flood Warning, Areal Flood Warning , Wind Advisory , Winter Storm Warning , Winter Weather Advisory , Avalanche Warning
New Hampshire - Special Statement
New Mexico - High Wind Watch , Fire Weather Warning , Fire Weather Watch , Fire Weather Warning, Fire Weather Watch
North Dakota - Flood Warning , Dense Fog Advisory , Special Statement
Oklahoma - Fire Weather Watch
Oregon - Flood Warning , Flood Watch , Winter Weather Advisory
Puerto Rico - Coastal Hazard Statement
South Dakota - Flood Warning, Areal Flood Warning , Winter Storm Watch , Public Information Statement
Texas - Flood Warning , High Wind Watch , Fire Weather Watch , Public Information Statement
Utah - Winter Weather Advisory
Washington - Areal Flood Advisory , Areal Flood Watch , Areal Flood Watch , Winter Weather Advisory
Wisconsin - Flood Warning , Areal Flood Warning , Flood Warning, Areal Flood Warning , Winter Storm Watch , Dense Fog Advisory , Hydrologic Statement , Flood Warning, Hydrologic Statement
Wyoming - Areal Flood Warning , High Wind Warning , Winter Storm Watch , Winter Storm Warning , Winter Weather Advisory , Special Statement , Public Information Statement

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