
Cold front will be departing tonight with high pressure building in from the west tomorrow. The mid level should dry out nicely with plenty of sunshine, however low level humidity will still hang strong especially with how soaked the ground is now. Highs should make the low to mid 80's.
Next system approaches on Sunday, with a cold front crossing the Great Lakes Saturday night and positioned over New York state Sunday afternoon. This will provide a focus for showers and thunderstorms. High low level dew points and sufficient morning surface heating will promote scattered strong cells with potential for more heavy rainfall.
The front will clear the region by Monday morning with decreasing clouds and another rebound in temperatures.
Tuesday will start out with partly cloudy skies with decent surface heating bringing us into the 80's again. Another short wave will drop into the Great Lakes Tuesday morning with associated frontal boundary moving into New York in the afternoon. This will spark another round of showers and storms through the evening and overnight.
The same frontal boundary will stall to the south of the area through Thursday. While weak high pressure builds to our southwest, there will remain a focus for scattered afternoon showers and thunderstorms. Weak waves will carve out a trough over the northeast with cooler air diving south out of Canada.
By Friday, this trough will be shifting to our east with rising heights through the weekend. Model guidance is slowly reaching a level of consensus on a closed low over the eastern Pacific sliding ashore, pushing ridging into the central plains. This ridging may expand briefly into the northeast US sometime early the following week, bringing a quick warm up to the region.
|posted by Sam Lillo @ 7/31/2009 08:56:00 PM