Dramatic Temp Drop From DC To NYC Tonight, Watching TWO More Snow Systems!!

Written by on March 13, 2014 in United States of America with 0 Comments

While New England gets pummelled by gales and heavy snow with upwards of 15 inches already down in parts of Vermont, further south, it was positively spring-like! Temps this afternoon warmed to near 70 as far north as Philly beyond the front swept through. That front prompted severe thunderstorm watches and gusts topped 50-65 mph widely across the Mid-Atlantic as the front pushes through.

An incredible temperature drop comes tonight across the Urban I-95. Philly will drop from near 70 to the 20s by dawn Thursday. A flash freeze and boy what a difference the air will feel tomorrow.

Meanwhile, once the current system clears the Midwest having dropped several inches on Ill, Ind and Ohio. It’s going to be frigid with lows dropping into single digits with subzero wind chills.

Here’s the ECMWF temps through late this afternoon, evening and tomorrow AM.

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

 

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Check out these late afternoon temperatures tomorrow.. It won’t get out of the 20s across a broad area including Philly and NYC.

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

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If you can believe it, but as mentioned here in recent days. ANOTHER is on the way and I’ve explained why this should take a further south track with the focus likely on the Mid-Atlantic into the southern Northeast.

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Here’s what the ECM is printing out for snow!

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Each system pushes into abnormally cold air that’s getting pulled south by an arctic high positioned over the frozen Great Lakes and once the system clears, that arctic air crosses the fresh snowpack leading to abnormally cold nights for this late in the season.

While the details cannot be pinned down just yet, amazingly we have ANOTHER system hot on the heels of the late weekend/early next week system.

Check this out.

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

Here’s the snow chart.. As stated, this is far out and strength, track, snow amounts will all vary back and forth with each new run but the model is seeing this system beyond the next and I see no real change in the pattern which tells me this won’t happen.

Source/Credit: AccuWeather Pro

Source/Credit: AccuWeather Pro

No sign of any real warmth on the horizon for the Eastern half of the continent over the next 4 weeks according to the CFSv2. That warm northeast Pacific along with heavy ice on the Great Lakes will likely keep this chilly pattern long into spring.

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