Fog and freezing fog this morning

Just as I finished typing this, the Quad Cities NWS extended the Dense Fog Advisory through noon for our northwest Illinois counties. 

Update: The Dense Fog Advisory for Stephenson, Jo Daviess, Carroll and Whiteside counties until 11:15am.  The Dense Fog Advisory for Green, Rock and Walworth counties has also been extended to 10am.  I wouldn't be suprised if these advisories were extended even further into the afternoon.  The fog has been very slow to lift this morning and has been reducing visibility to a quarter mile in many locations.  Temperatures remain at or slightly below freezing so freezing fog along with freezing drizzle has been reported.  According to the Quad Cities NWS there have been numerous accidents or vehicles that have slid off the road...especially on highway 61 between the Quad Cities and Dubuque.


A Dense Fog Advisory has been issued for northern Illinois and southern Wisconsin lasting through mid-morning.  Visibility all across the area has dropped to a half mile or less as a weak ridge of high pressure resides just to our south.  Winds will eventually begin to pick up later today and this should help allow some of the fog to dissipate going into the afternoon.

Watch for slick spots as well this morning.  There have been reports of freezing fog near Freeport, Galena, Savanna and Monroe.  This may cause elevated surfaces like bridges and overpasses to become slick.