John Homenuk

PM Zone 4/5 (Southeast NJ) Update: Light snow tonight

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A weak low pressure system is developing this evening across the Mid Atlantic states, and will continue to move east/northeastwards to a  position off the New Jersey coast from later tonight into Sunday Morning. The low pressure area is associated with a deep, but progressive mid and upper level trough which is moving through the Northeast states as we speak. This trough is of polar origin, emanating from Canada.

The “clipper” system will develop through the evening, as lift in the atmosphere strengthens and expands. Additional moisture will also be drawn into the system as the low pressure center develops tonight. The two will coincide over Southeast parts of New Jersey from late Sunday Night into Monday morning.

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John Homenuk

1/29 AM Zone 4/5 (Coastal NJ): Clipper snows scrape the shore

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A weak low pressure system, developing as a result of mid and upper level energy int he atmosphere surging southeastward from Canada, will develop off the coast of New Jersey on Monday morning. Forecast models have struggled with the exact track, intensity and location of the low pressure as it develops, leading to considerable forecast uncertainty over the next 12 to 24 hours. However, better agreement recently has increased confidence in impacts.

The low pressure system is developing from what is called a “clipper” system, or a piece of fast moving energy that drives southeastwards from Canada and then quickly moves out to sea or back northwards towards its origin. These storms can sometimes develop more rapidly and deepen if the energy is slower or more intense — but that is not the case here. However, a low pressure system will still develop offshore, and the juxtaposition of moisture and lift in the atmosphere will lead to the potential for bands of snow in the region on Monday morning.

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Miguel Pierre

1/27/17 AM All Zones: More Seasonably Cold Weather Returns

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A mixture of clouds and sunshine is expected to dominate the weather today, as some instability and moisture will be around to keep some cloud cover over the region. But it will be mainly dry, with westerly downsloping winds. Temperatures will likely hold steady or slowly rise into the lower to middle 40s for most of the region, as another cold front moves through this afternoon. Winds could be gusty again behind this front, but they shouldn’t be quite as high as yesterday.

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Miguel Pierre

1/26 PM Zone Update: Colder weather arrives this weekend

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After some showers this morning, skies cleared for more sunshine with temperatures in the 50s. It will be breezy this evening with drier westerly winds possibly gusting over 35 mph across parts of region this evening. This is due a tighter pressure gradient over the region. Colder air begins arriving later tonight as temperatures fall into the lower to middle 30s.

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