Low level moisture contiunes to be trapped under an inversion. Light fog persisted all day, and will get thicker during the overnight hours. A DENSE FOG ADVISORY has been issued for the entire area through mid morning on Tuesday. With widepread visibilites below 1/4 mile caution is advised in driving overnight and early on Tuesday. A strong low pressure system will move across the southern plains tonight, and the central plains on Tuesday. It will be drawing Gulf moisture northward in the the area on Tuesday, and spread rain showers into the area during the afternoon. Rain showers will contine on Tuesday night through the morning on Wednesday as the associated low pressure storm center stalls out over Iowa, and slowly weakens.
A warm front will move north of the area by early Tuesday. It will bring the mildest temperatures to Rock ford that we have seen for the last 100 days. Not since December 1, 2009 have we seen the mercury rise above 50 degrees. On December 1st it was 56 degrees. On Wednesday it looks like the high temperature may be around 54 degrees.
Another low will spin up over Missouri on Thursday pumping more moisture northward in the Stateline as it moves slowly across central Illinois. More rain showers will continue off and on through Saturday. The rains this week may be enough to cause significant rises on the Rock River, and its tributaries during the next 7 to 10 days when some streams may exceed flood stage
by Meteolologist
Eric Nefstead
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