A couple of days ago, the medium-range model was spitting out very impressive numbers regarding a Hudson Bay Low sending a chunk of cold air into the nation's northern sections spreading well into the Midwest by next weekend.
Well, the air still looks very cool for this early part of Meteorological Fall but has modified somewhat. Nevertheless, daytime temperatures still look to be in the 60's for many locations in Kentucky with overnight lows ranging from 40-50 degrees during the coolest feature of this air mass.
A projected 1030-1036 mb air mass that should settle into the nation's Heartland is the type that is straight out of Canada. Right now, current forecasts have the core of the coolest air just west and north of our region.
Places like Kansas City may only see temperatures in the low to mid 60's by Friday. I like to use KC as a barometer as to how our weather will behave in a pattern like this. Typically, Louisville's daytime temperatures will run about 2-5 degrees warmer. Therefore, 65-70 looks good for Saturday with lows between 48 and 53 in the city with low and mid 40's in the rural areas.
MS
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