NYC Could Hit 70° Sunday Prior To A Cold Christmas Eve, Day

Written by on December 21, 2013 in United States of America with 0 Comments

Yesterday started below freezing from NYC northwards, today’s it’s starting off in the upper 30s and low 40s as mild southwest winds are already blowing up and over the snow cover, forcing it to melt.

Highs all the way to NYC climbed into the 50s today and it should get into the low 60s tomorrow with snow cover all but melted throughout the Tri-State area now. Only residual piles of snow will likely be left. That bare ground will aid the southwest winds tomorrow in warming the lower atmosphere and as those winds increase with the approach of the cold front Sunday, warming too should increase, becoming gusty out of the southwest as the heartland storm system cranks and pushes out of Texas up towards the Lakes.

While it’s warming sharply up the East Coast, it frigid over the Dakotas with the new surge of cold on the north, northwest side of the system.

Here was the scene from Fargo, ND this morning.

Frigid morning in Fargo, ND (Courtesy of Daryl Ritchison)

Frigid morning in Fargo, ND (Courtesy of Daryl Ritchison)

Check out these morning lows.

Source: weather.com

Source: weather.com

As the storm cranks, so the temperature contrast grows between Plains and Ohio Valley and within a mere 150 miles, we could see a range in temperature between 10s and 20s verses 70s and 80s.

Here were the highs today. The warming through the Tennessee/Ohio Valley as East Coast will be stronger tomorrow.

Source: weather.com

Source: weather.com

Tomorrow the intensifying system will take a big gulp of warm, moist Gulf air into the warm sector and with increasingly colder air being drawn in from the North, means an increasingly unstable atmosphere over the Mid-South and thus the SPC has now issued a ‘moderate risk’ severe weather including the threat of tornadoes along the lower Mississippi river with a broader area of ‘slight risk’ throughout the Mid-South for Saturday afternoon.

Source: Storm Prediction Center

Source: Storm Prediction Center

Here’s AccuWeather’s risk area Saturday.

Source: AccuWeather

Source: AccuWeather

As well as the severe risk, the flood risk will also be there with a heck of a lot of moisture streaming northward. Check out the QPF rainfall over the next 2 days alone.

Source: NOAA

Source: NOAA

Severe weather is expected to break out with thunderstorms firing and wrapping into the cold air that’s being pulled into the storm’s colder side which means heavy snow for Kansas, Missouri, Illinois up through the Lakes into southern Ontario. It will be frigid in the Northern Plains and once the system has pushed up past Chicago and Detroit, it turns frigid over the Lower Midwest, Ohio Valley Sunday following highs close to 80 the day before.

Let’s not forget the heavy snow that will break out along the northern edge of the SW to NE boundary extending from Texas to Southern Ontario.

Source: AccuWeather

Source: AccuWeather

70s All The Way To NYC?

After seeing upwards of 99% of the Northeast snow covered, that decreases dramatically in the coming days as snow eating southerly winds change the entire look and feel. In saying that, while the Northeast sees the snow disappear, others back into the Midwest and Plains gain snow cover.

[s2If current_user_can(access_s2member_level1)]

Here’s the current snow cover nationwide.

Source: NOAA

Source: NOAA

Northeast

Source: NOAA

Source: NOAA

Mid-Atlantic

Source: NOAA

Source: NOAA

It’s mild today, even milder Saturday but Sunday is the day when we could see incredible warmth reach all the way to NYC. How warm? 70 is possible but that’s thanks to no snow cover and a screaming southwest wind as the cold front approaches the western suburbs. 70s are quite possible throughout the DC to NYC corridor with 60s maybe reaching up as far as Boston but that will depend on how far north the warm front gets as it’s expected to sit draped over central New England.

Here’s AccuWeather’s forecast highs against the records.

Source: AccuWeather

Source: AccuWeather

Sunday PM temps. Note the 70s into NJ. Should see 70 even in NYC.

Courtesy/Owned by AccuWeather Pro

Courtesy/Owned by AccuWeather Pro

A dramatic flip back to much colder arrives Monday with highs Tuesday up and down the DC to Boston corridor struggling to even reach freezing. Could see snows on the backside of the front as it sweeps through.

Check out the 850s Sunday verses Tuesday!!

Sun

Courtesy/Owned by AccuWeather Pro

Courtesy/Owned by AccuWeather Pro

Tue

Courtesy/Owned by AccuWeather Pro

Courtesy/Owned by AccuWeather Pro

More cold pours in from Canada in the period between Christmas and New Year with a cold look into early January.. Plenty more fun and games to come.

More on the longer term pattern tomorrow!

[/s2If][s2If is_user_logged_in() AND current_user_cannot(access_s2member_level1)]

That’s it, [s2Get constant=”S2MEMBER_CURRENT_USER_DISPLAY_NAME” /]!

To continue reading, you need to have a valid subscription to access premium content exclusive to members. Please join a subscription plan if you would like to continue.[/s2If][s2If !is_user_logged_in()]

Sign in to read the full forecast…

Not yet a member? Join today for unlimited access

Sign up to markvoganweather.com today to get unlimited access to Mark Vogan’s premium articles, video forecasts and expert analysis.
[/s2If]

Follow us

Connect with Mark Vogan on social media to get notified about new posts and for the latest weather updates.

Subscribe via RSS Feed Connect on YouTube

Leave a Reply

Top