Friday, July 16, 2010

Bermuda High

Moisture increases with a southwest air flow as a weak cold front begins to move into the area today through tonight. Upper level disturbance will stall over our region on Saturday, although models show relative humidity values allowing for a drier air slot to briefly move into the area early this weekend. High pressure from the east will return to the area Sunday. However, models also indicate a more defined disturbance out of the west will make its way into our back yard Sunday. This will allow lingering moisture for the beginning of next week.

So we’ll see increasing clouds today as the cold front swings into place. Temperatures and possibility of precipitation will depend on the speed of the front. I’m thinking that we’ll see a few scattered thunderstorms and high temperatures today just a hair below 90.

We’ll see some early morning fog/haze Saturday. Moisture for the most part will stay in place Saturday, although POPs will be most likely in southern WV. Here we’re more likely to see cloudy skies, a very isolated shower and otherwise muggy and hot conditions for the rest of the day. Temps overnight will hold in the upper 60s

A similar pattern will unfold Sunday. Only this time moisture will approach from the northwest and rain will be most likely in the northwestern half of the state. Meanwhile broad high pressure will begin building from the east off Bermuda. This should eventually push any lingering moisture to the north, setting the stage for a hot & humid forecast. However since the speed at which the Bermuda high wins out is still in question, chance POPs will continue through the first part of next week.

The Bermuda High