Cold shots of air to create snow chances in northeastern US this week

By Alex Sosnowski, AccuWeather senior meteorologist
April 18, 2018, 8:20:46 AM EDT

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Frequent bursts of chilly air will be accompanied by snow in some locations and limit mild days in the northeastern United States this week.

Warmth like that experienced in the mid-Atlantic and southern New England at the end of last week will not be matched this week. And for people in the northern tier, more winterlike conditions are in store.

Static Waves of Chill NE


Those who bought annual flowers and sensitive vegetable plants in the warmth this past week may need to protect their investment.

Temperatures are forecast to dip to near freezing in the central Appalachians and southern New England during multiple nights. Be sure to cover plants already in the ground and move potted plants indoors.

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A storm is forecast to spread a swath of accumulating snow across part of the Upper Midwest at midweek.

This same storm is projected to bring accumulating snow to northern New York state and New England on Thursday. Roads may become slushy over the higher elevations.

Static Thursday NE


Over the higher elevations of the central Appalachians, some wet snow will fall with the storm on Thursday, but any accumulation is likely to be limited to grassy surfaces.

Temperatures may rebound enough in between chilly shots for shorts and short sleeves to be donned again in parts of the mid-Atlantic.

Wednesday is likely to bring a spike in temperature. Across much of the region, this day is perhaps the best bet for outdoor plans including baseball games this week. In portions of the mid-Atlantic states, temperatures may approach seasonable levels this day.

Static US Midweek


On Wednesday, highs are projected to range from the lower to middle 40s F in northern New England to the upper 60s to lower 70s in eastern Virginia. On Friday, highs are likely to range from near 40 in northern New England to the middle 60s in southeastern Virginia.

The greatest risk of frosts and freezes may come this weekend into next week when a dry Canadian air mass is likely to be in place for several days and nights.

"During the upcoming weekend, provided a storm passes by to the south, sunshine and light winds may make for pleasant conditions, even in parts of northern New England," according to AccuWeather Lead Long-Range Meteorologist Paul Pastelok. However, temperatures will not approach summerlike levels like that of last weekend even in the mid-Atlantic.

The pattern from this weekend into next week may bring the longest stretch of dry, sunny days since last year. Expect, cold and frosty mornings. However, where the sun is out, AccuWeather RealFeel® Temperatures will be several degrees higher than the actual temperature during the midday and afternoon.

"There is a chance that summerlike warmth returns around the first few days of May," Pastelok said.

Until then, the temperature roller coaster, favoring more temperature plunges than spikes, will prevail.

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