As we plow (sometimes literally) through the heart of winter, the atmosphere is starting to toss out winter storms left and right.

Current Radar

Winter Weather Warnings, Watches and Advisories

(Alerts issued by the National Weather Service.)

We had Winter Storm Juno earlier in the week, and is now sweeping into New England.

(JUNO: | | || )

But we're already watching yet another storm system, now developing over the Southwest, that will move across the country as we close out January and say hello to February. It could become the next named winter storm. (If it does, it would be named .)

(INTERACTIVE: )

Monday Morning Forecast

(Forecast hourly temperatures and precipitation for the indicated time.)

Monday's Forecast

First, a southward dip in the subtropical jet stream will wring out snow over the mountains of Utah, Colorado and New Mexico, as well as the adjacent southern High Plains early Friday into Saturday. Winter storm warnings have already been posted for parts of far eastern Arizona and New Mexico.

(INTERACTIVE MAP: )

Some of this subtropical, or southern branch jet stream energy and moisture may meet up with a reinforcing cold front and its polar jet stream energy diving out of the Canadian prairies this weekend.

The result:

- Some snow may spread into parts of the Plains and Mississippi Valley late Saturday into Saturday night.

- Snow may then spread into the southern Great Lakes, Ohio Valley and parts of the Northeast through Sunday night.

- Snow may persist in parts of the Mid-Atlantic, Northeast or New England on Groundhog Day, Monday.

Of course, as always, there is uncertainty regarding the exact track of the surface low, which will ultimately determine who sees the most snow from this Groundhog event.

There is also the possibility that the system stays suppressed. In other words, the subtropical energy and moisture never join forces with the polar jet energy and cold front, bringingonly light precipitation north of the Mid-Atlantic states.

(FORECASTS: | | )

However, confidence is growing that moderate to heavy snow will accumulate from the mid-Mississippi Valley into the Northeast Sunday and Monday.

Travel may be impacted Sunday in the Ohio Valley, southern Great Lakes and Mid-Atlantic states and Monday in the Northeast (potential air delays, some snowy roads during the morning commute). As we've seen many times this winter (and every winter), it does not take much snow to create travel headaches.

Check back with weather.com and The Weather Channel for more on this upcoming system.

Monday's Forecast Highs and Departures From Average

(Numbers beside blue triangles indicate how far below average our forecast high temperature is for Groundhog Day.)

Reinforcing the Cold

Both Winter Storm Kari and this storm system will pull down more cold air into the central and eastern U.S. through early next week.

On Friday, teens and 20s for highs will be the rule over the Great Lakes. By Saturday, teens and 20s will keep the Northeast shivering. A few single-digit highs can be expected in northern New England, thanks to any fresh snow cover from the first system, in additon to the refrigeration of the air mass from snow already on the ground.

Behind the second Arctic plunge, Sunday's highs may be stuck in the single digits and teens from North Dakota to Maine.

Groundhog Day may leave you longing for spring to be right around the corner, with teens, 20s and a few single-digit highs from the northern Plains to the Ohio Valley, Northeast and New England. Far northern New England may stay below zero all day Monday – that includes Burlington, Vermont, where there hasn't been a subzero high in February since 2003 (though they had three such days in January last year).

(MAPS: )

In the extended range, colder than average temperatures are expected to persist into the second week of February in most areas east of the Mississippi River.

Senior meteorologist Nick Wiltgen contributed to this report.

MORE ON WEATHER.COM: Winter Storm Juno Photos

An unidentified town official helps Greg Longo, left, remove belongings from his house after it was heavily damaged by ocean waves during a winter storm in Marshfield, Mass., Tuesday, Jan. 27, 2015. The storm has punched out a section of the seawall in the coastal town of Marshfield, police said. (AP Photo/Michael Dwyer)