FREEZE WARNING Again Tonight...

The icy ridge of Canadian high pressure is directly overhead tonight.  The skies are clear, and the wind is light.  All of the ingredients are in place  for another cold night for the Stateline.  So a FREEZE WARNING has been issued again. (This is the 3rd night in a row Freeze Warnings have been issued by the National Weather Service.)  Overnight low temperatures are expected to be in the middle to upper 20's.  A widespread frost is expected to develop overnight because of dew points that have risen into the middle 20's.  The frost will melt off by mid morning.  The high pressure ridge will shift off to the east by mid day  with a center over southern Indiana.  It will be sunny with a light southwesterly wind developing.   All in all it will turn out to be a pretty nice day with the afternoon temperature reaching near 60 degrees.  The southerly wind will pick up a little overnight on Thursday night, and clouds will increase as more moist air from the Gulf of Mexico begins to be tapped.  It will not be a cold with a low around 41 degrees.  On Friday the pressure gradient will tighten up between  retreating high pressure along the east coast and low pressure over the central plains.  A brisk southerly wind will blow at 15-25 mph with gusts above 30 mph during the afternoon.  It will be cloudy with a slight chance of showers in the morning, and a good chance of showers in the afternoon.  There might even be a stray thunderstorm.  The afternoon high on Friday will be around 60 degrees.  A warm front stretching from the central plains low to the low Mississippi valley early Friday will move toward the northeast, and push across the Stateline during the late night hours on Friday night.  Showers and thunderstorms will be likely on Friday night, Saturday, and Saturday night.  It will be cloudy, quite breezy, and warmer on Saturday with a high around 70 degrees.  The Stateline will be on the mild side on Saturday night.  The overnight low on Saturday night will be close to 60 degrees.  On Sunday a slow moving front located just northwest of the area will slowly slide southeast into north central Illinois.  It will be cloudy again with a good chance of more showers and thunderstorms.  The high temperature will be in the mid to upper 60's.  On Monday, the front will still be in the area as another disturbance approaches from the southwest.  More showers and thunderstorms are possible.  Lingering showers may persist off and on into Tuesday as the weather turns cooler once again.  Needless to say... with several days of repeating showers and thunderstorms over the weekend.....and showers continuing into early next week, heavy rainfall totals are possible.