Saturday, January 5, 2013

Patchy Freezing Drizzle Overnight

An area of low pressure moved toward the northeast across the area late this afternoon and early this evening. It was responsible for the cloudy gloomy day on Saturday producing some sloppy wet snow and light rain.  Parts of northeastern Illinois were able to total up a few tenths of an inch to around half an inch.  There wasn't any measurable snow reported from the Rockford airport, and rainfall totals were meager with 0.03" recorded.  With the upper low moving off to the northeast, it's time to look to the west for our next weather maker.  There is a cold front stretching from north central Wisconsin southwest to near Dubuque, Iowa, Cedar Rapids, and Ottumwa into north central Missouri at 9 pm CDT.   Temperatures are expected to fall below freezing across the Stateline shortly after midnight.  There is some warmer air aloft associated with the front that will allow patchy freezing drizzle to develop.  There could also be some light snow or flurries, but no accumulation of snow or ice is anticipated.  Caution is advised for drivers later on tonight through daybreak because of the possibility of slippery spots developing on the streets.  The cold front will be exiting all but the extreme southeastern tip of Illinois by 6 am on Sunday morning. The wind will switch from the southwest to the west with frontal passage by midnight, and then northwest later on tonight.  The temperature will drop into the low 20's by 6 am, and hold there through the mid morning hours on Sunday.  Sunday will start off cloudy, but no measurable precipitation is expected.  A few snow flurries cannot be ruled out.  The wind will be quite brisk from the northwest in the morning hours running between 15 and 20 mph with some higher gusts.  The wind will diminish in the afternoon to less than 10 mph by 4 pm, and the clouds will start to break up.  The high temperature will be around 27 degrees.  A chilly high will be located over southeastern Missouri by 6 pm on Sunday evening.  Skies will become mostly clear, and the wind will be light and variable.  It will be colder with a low on Sunday night around 13 degrees.  It will not take long for things to start to warm up, though, with the high pressure center moving to eastern Kentucky by 6 am on Monday.  A breezy southwest wind will develop across the Stateline on Monday pumping temperatures up into the middle 30's under sunny skies.  Temperatures will not drop much on Monday night with the southwesterly breezes continuing overnight.  The low will be in the middle 20's.  On Tuesday temperatures will bounce back to around 37 degrees.   A new cold front will drop southeast  across Wisconsin and northern Iowa.  Right now it does not look like the front will quite make it this far south.  On Wednesday a vigorous system will develop over Texas, and start it's move toward the northeast.  Southerly winds will push the temperatures over north central Illinois into the low 40's.  The low on Wednesday night will be in the upper 20's under mostly cloudy skies.  On Thursday the Texas low will be near Kansas City at 6 am.  A southerly wind will continue across the Stateline.  It will be mostly cloudy with high temperatures reaching the low 40's again along with a good chance of rain.  Chances of rain will continue off and on through Saturday. High temperatures will continue to be right around 40 degrees.

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