Weak Storm, Then Brutal Cold!
Posted by Trevor Cole in Daily Weather Updates on 30-12-2009
A week storm system will affect the tri-state through the rest of the week, providing chances for rain and snow showers, as well as ushering in much colder air by late Thursday.
Wed-Thu
The aforementioned storm system will continue to slowly slide through the Deep South, helping to throw moisture into the Ohio Valley. However, southerly winds will help surge in milder air, thus allowing the bulk of the precip (for Wed-Thu) to fall as rain showers. I wouldn’t rule out a bit of a rain/snow mix in the northern counties of the tri-state Wed afternoon, but it would be brief with no snow accumulation. Expect off-and-on showers from midday Wed through midday Thu, adding up to a quarter inch at most. By late Thu, a strong cold front will cross the area, ushering in the coldest air of the season thus far!
Fri-Tue
After the cold front passes through Thu night, we will be left with a very cold airmass in place. Highs through this period will struggle to make it out of the middle 20s, with lows in the lower to middle teens (single digits in spots)! Given the tight pressure gradient between the exiting storm and the high pressure area moving south from Canada, breezy conditions will be present through early next week. Wind chills will thus be very uncomfortable, with teens being the “warmest” they will get. Due to the strong NW flow, LES (Lake-Effect Snow) will be widespread to our north, with some of the stronger bands having the potential of making it into the tri-state. Otherwise, expect some CAA (Cold Air Advection) snow showers, some of which may be impressive. Given the very cold temperatures, all snow that falls (albeit light) will stick, resulting in an inch or less of accumulation each day. By early next week, it wouldn’t surprise me if some spots have a couple inches of snow on the ground…
