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Miguel Pierre

Premium Weekly Outlook: A Look into Christmas and Hanukah Weekend

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After brief mild surge in the 50s over much of the region yesterday, another artic airmass has moved back over the region today. Despite only some high cirrus filtering sunshine, temperatures for the rest of this afternoon will likely only reach the lower 30s. This is airmass is not cold as last week. But it’s another reminder that we are still only in December.

Another very cold night is store for tonight. High pressure building over the region, will result in mostly clear skies and calmer winds later tonight. This will allow for more radiational cooling, especially for the suburbs.  The only cavet for ideal radiation cooling conditions will be with more high clouds early tonight with a weak shortwave trough passing through. But these clouds should move out overnight.  Temperatures will likely drop well down into the teens and lower 20s over the much of the region. Some of the interior valleys and the Pine Barrens may drop into the signal digits, if skies clear out enough.

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John Homenuk

Rain, fog continuing through Monday evening

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Periods of rain, with continued spotty areas of dense fog, are expected to persist throughout the day on Monday. The culprit? A low pressure system riding northward up the coast along a frontal boundary. With plenty of moisture available, and warmer than normal air sitting along the coast and throughout much of the Mid Atlantic, widespread rain has developed essentially from the Southeast states into the Northeast US this morning. The rain will continue through much of Monday afternoon, with the areas of fog likely not lifting until later today.

Regional radar imagery this morning showed the bands of moderate to heavy rain continuing to stream up the East Coast. With time, however, the frontal boundary will begin to sag eastward and the heavier rain will follow suit. Cooler air is expected to move into the region by later tonight into Tuesday — as the 70 degree weather from Sunday will quickly become a distant memory. By Christmas day, we will be tracking the potential for bands of snow. More details after the break..

Regional radar imagery from Monday morning, showing areas of moderate to heavy rain moving up the East Coast.

Regional radar imagery from Monday morning, showing areas of moderate to heavy rain moving up the East Coast.

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