US Short Term Forecast thru May 27

...Wet and unseasonably cold weekend for the Northeast...

...Showers and thunderstorms with locally heavy rains for portions of the plains and Mississippi valley...

...Unsettled weather continues in the Pacific Northwest...

A strong area of low pressure will churn slowly north along the New
England coast over the next couple of days, delivering a prolonged period of wet weather and anomalously cold temperatures to the Northeast this holiday weekend.

This area of low pressure, centered currently along the southern New England coast, will track slowly to the north, not reaching the Canadian maritime provinces until late Sunday. Atlantic moisture
thrown around the backside of the system will fuel heavy precipitation
accumulations across portions of northern New England and New York.

Some of this precipitation is expected to fall in the form of snow as cold air pours down out of Canada, possibly resulting in significant accumulations across some of the higher peaks of the Adirondacks, Green and White mountains.

Further to the south, unseasonably cool, but dry conditions are expected to highlight the weekend across the mid Atlantic and

Across the central U.S., broad moist southerly winds out of the western Gulf of Mexico are expected to encourage at least scattered showers and thunderstorms, with isolated heavy heavy rains, across portions of Texas and Oklahoma both days.

A better chance for more organized storms is expected further to the north along a slow moving front stretching from the northern high plains through the mid Mississippi valley.

In addition to the storms already firing across Nebraska into Iowa and Illinois, Gulf moisture pooling along the boundary interacting with a string of upper level disturbances emanating from the West may produce additional organized showers and thunderstorms with heavy rains later today across portions of the northern high plains to the mid Missouri and Mississippi valleys.

Cool and unsettled weather will continue across portions of the Pacific Northwest and the northern Rockies as a series of upper disturbances move through a broad upper trough that is forecast to remain centered over the western U.S. through the early part of next week.

Low pressure lifting into western Canada this morning will be replaced by another system nearing the Oregon coast later tonight. This is expected to produce some light to moderate rains centered across western Oregon before pushing inland on Sunday while yet another system approaches the coast on Memorial Day.

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