6/12/12 Heavy Rains for Wednesday

So far, the months of May and June have looked, at least on weather map, like March and April. And vice versa.  The map below shows a pattern more typical of Spring than that of entering the summer solstice next week.

The flow between high pressure over Canada and a Low in the Atlantic means sun, but mild conditions will exist along the east coast for several days. The heat it being pumped into the central Plains.  Also very interesting this year, interesting spin ups of tropical type storms may be happening in such a pattern close to the S Coast.  The high moves into Atlantic Canada this weekend, keeping New England dry, but cool.

For Tuesday, a cold front will slowly push toward New England during the day, expect Sun to be replaced with increasing high clouds to all clouds by late afternoon. Rain arrives by 11 PM in the Boston area. Highs in the lower 70s.

Wednesday morning will be a rough go with heavy rain falling in a line from Maine to Long Island.  Up to  a half inch of rain could fall. Heavier amounts over Western New England.

The rain should last for most of the day and taper to showers by afternoon.

After this front pushes through, it will remain well off shore, except for the southern end of it which may Spin up an area of low pressure and track SOUTH as high pressure dominates the east coast. This is an a-typical high as it is coming in from the North Atlantic spreading down the east coast and not a Bermuda high which typically allows warm air to flow north. 

An onshore flow will keep coastal areas cool an a bit breezy, but dry.

This map is difficult to see, but a sprawling area of high pressure will extend from Atlantic Canada all the way to Florida for the weekend.