From Mild to Frigid in the Northeast This Week
For more information on the blast of cold air coming into the Northeast Thursday, click on this video.
After a mild day today in the Northeast and mid-Atlantic, a blast of arctic air will send temperatures plummeting by Thursday with widespread high temperatures in the 20s and 30s expected.
Southwesterly winds ahead of an approaching cold front will send temperatures above normal throughout much of southern New England and the mid-Atlantic today. High temperatures will rise 5 to 10 degrees above average in cities and towns including Philadelphia, Washington, D.C., Providence and Boston.
The mild spell won't last long as a potent cold front approaching from the north tracks across these areas from north to south today. An arctic high pressure system will follow this front sending a surge of cold, northerly winds into the region.
Temperatures will plummet in the wake of this front with high temperatures on Thursday 15 to 20 degrees colder than Wednesday. This translates to widespread 20s in northern New England with 30s farther south along the mid-Atlantic coast.
Brisk northerly winds of 10-20 mph will make it feel even colder with AccuWeather.com RealFeel® temperatures in the single digits and teens throughout much of the region.
Along with the blast of cold air, this front will trigger a round of snow showers and localized squalls across much of northern New England today.
Cities such as Burlington and Watertown could experience snow squalls which could drop a quick inch or two of snow and produce dangerously low visibilities.
Luckily for the big cities of the Northeast, this front will be moisture-starved and should pass through while producing nothing more than a flurry or sprinkle on Wednesday evening.
This blast of cold air won't last long as winds will shift to a more southerly direction on Friday and Saturday, sending temperatures above normal by the weekend. However, the milder weather comes with a price as a storm system will bring more rain and perhaps some thunder to the East on Sunday.
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Daily U.S. Extremes
past 24 hours
| Extreme | Location | |
|---|---|---|
| High | 107° | Death Valley, CA |
| Low | 28° | Daniel, WY |
| Precip | 2.39" | Alexandria, MN |
WeatherWhys®
People need to pay close attention to the UV index during this time of year. On a sunny day late in the spring and into the summer, the UV is usually at least an 8, which is very high. Readings over 11 are considered extreme values in which only 10 minutes of full exposure to the sun will produce a sunburn.
This Day In Weather History
New Hampshire (1814)
A tornado crossed Merrimac, Litchfield, Londonderry and North Chester. The same storm produced hailstones that had an 11-inch circumference and weighed 1/2 pound.
Northeast (1989)
More rain in an already wet month. Monthly totals topped 11 inches at New York City, 9 inches at Bridgeport, Conn., and 8 inches at Baltimore (all three totals set records for May).
Rough Weather
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