AP
But that's not the worst part.
As Slate reports, the blizzard could also bring massive waves and flooding to New York and New Jersey, the likes of which haven't been seen since Hurricane Sandy.
Slate's Eric Holthaus tweeted this image of the flooding forecast:
~~The Blizzard of 2016~~Come for the feet of snow, stay for the life-threatening flooding.https://t.co/e4OWK31MQj pic.twitter.com/w4BTswY0Ge
- Eric Holthaus (@EricHolthaus) January 20, 2016
And that's just in New York. Mashable reports that in Washington DC, it could be the biggest snowstorm in 100 years, possibly bringing up to two-and-a-half feet of snow.
Here's Holthaus again with the most likely and worst case snowfall for DC:
NWS DC's first snowfall maps for blizzard #Jonas: (most likely & worst case)Context: https://t.co/e4OWK31MQj pic.twitter.com/SmhtByjomF
The Washington Post's Capital Weather Gang tweeted this image of the predicted snowfall in DC:
Our Fri-Sun snowfall forecast (below) and everyone else's. Compilation here: https://t.co/FJsV9efFYT pic.twitter.com/PhXHXsVdWl
- Capital Weather Gang (@capitalweather) January 20, 2016
GFS 00z dumps 30-36" wind driven snow with blockbuster blizzard for the ages this weekend. Crippling impacts pic.twitter.com/7oAay0vXMz
- Ryan Maue (@RyanMaue) January 19, 2016
As Slate's Eric Holthaus wrote earlier this week, "What's amazing - perhaps even more so than the impressive potential snow totals - is that all the major weather models are already locked in so far in advance."
Now, we're still several days away from when the blizzard is supposed to hit, so a lot could change in that time. Current models predict the brunt of the storm touching down on Friday evening and lasting through Saturday evening.
This could signal the end of the unusually mild winter the Northeast has been having, which is only partially linked to this year's record-strength El Niño - a global weather pattern linked to warmer-than-usual water temperatures in the Pacific.
Here's a pretty animation of one of the forecasts:
The 500mb forecasts from like every model every run are just so mesmerizing. Perfection. GFS shown: pic.twitter.com/Y8jLQz046e
- Ian Livingston (@islivingston) January 19, 2016
National Oceanic and Atmospheric Administration meteorologist Paul Kocin said in a forecast discussion on Tuesday that the conditions for this week's snowstorm are "textbook," saying that there was potential for a "significant" East Coast snowstorm Friday through Sunday.
Kocin noted that while there is good agreement in the weather models, there are small but crucial differences. All models suggest the storm will continue building as it moves toward the Mid-Atlantic Coast, become more vertical and move northeastward.
The storm will likely slow down as it moves off the Mid-Atlantic Coast, but then it could either speed up again as it heads northeast, or several weather fronts could intersect farther north and east, Kocin wrote. In both scenarios, "the overall speed of the system is important to affect the amount of snow in any one area," he said.
Kocin compared the blizzard to one in February 2010 - aka "Snowmageddon" - one in January 1996, and the President's Day storm of 2003.
But as good as the forecasts are, they're still just predictions, and they've been wrong in the past. Take the "historic blizzard" that was forecast to hit New York City in January 2015, which was predicted to dump as much as 2 feet of snow on the city but only brought about 5.5 inches.
So don't panic yet, but it might be time to get the snow shovels ready!