An active pattern awaits most of the eastern states of the U.S. going into this work week. It starts with dramatically cooler temperatures digging down south.

Once this gulf low forms, the jet stream pushes it eastward, and with the vastly different temperatures in the northeast and the southeast, this system will have a rain and a snow component.

Rain-Side

The heavy rainfall will start early Monday morning in southern Texas, and the storms will intensify and bring heavy rainfall across the south central. This will eventually spill into the southeast, making it a coastal issue going into Monday night and Tuesday afternoon. By nightfall on Tuesday, the rainfall component of this system is a thing of the past.

Some precipitation totals can measure as high as 5" or more by Tuesday. The heaviest rainfall totals are likely to hug the Gulf coast, with places like Mobile, Alabama trending closer to the 5" mark.

With all this rainfall accumulation, we can expect a marginal risk (level 1/4) of flash flooding across the Gulf coast, and even some spots in the southeast.

Snow-Side

If we take all this moisture and shove it northward, now we're talking snow just due to the stark temperature difference. The snowfall starts early on Monday across the plains, then pushes eastward, impacting most of the northeast into early next week.

Snowfall totals are going to trend on the higher side especially if you live out in New England, where some areas are expected to get a foot of snow or even more!

The 3-7 Day Hazards outlook also highlights where we'll likely see the most snowfall by Tuesday.

Make sure to stay tuned to WeatherNation throughout your work week, for all the latest updates on this system!