(NewsNation) — Following the rise of the Pink Moon, the nation’s Easter Sunday weather outlook shows abnormally warm temperatures across the South and unusually cold temperatures in the North, according to the National Weather Service.

A spring storm brought several feet of snow to the Sierra Nevada and rain to parts of the San Francisco Bay Area, with more stormy weather expected this week.

The seven-day snow total topped 3 feet in some mountain areas as of Saturday, UC Berkeley’s Central Sierra Snow Lab reported.

“We’re getting a bit of an abundant April!” the research station in Soda Springs said on Twitter.

Parts of Northern California including the Bay Area could see pockets of rain for much of the week thanks to an unsettled weather pattern stalling over the region, the National Weather Service said.

According to the NWS, a strong storm system is expected to track up the Northeast Monday night into Tuesday bringing heavy, wet snow to the interior Northeast, particularly locations above 1,000 ft where accumulations greater than four inches are likely.

This could lead to hazardous travel conditions as there are freeze warnings and frost advisories in place across the Ohio Valley.

A wave of low pressure tracking through the northern Plains will deliver a round of heavy snow to North Dakota and northern Minnesota with gusty winds also leading to reduced visibilities and drifting snow, the NWS says.

Winter storm warnings are in place over northern North Dakota where snow accumulations could surpass eight inches in spots. In addition to the snow and wind advisories have been issued for parts of the Northern Plains and southeast Wyoming.

As the storm gradually weakens while tracking towards the Great Lakes, the NWS forecasts possible light accumulations in the Great Lakes and Upper Mississippi Valley.

Farther south, early summer-like temperatures will be most common in the Southern High Plains and the Southwest where daytime highs in the 80s and 90s are expected. In fact, portions of the Rio Grande Valley in South Texas could soar as high as 100 degrees today.

In the Deep South, showers and thunderstorms could lead to some becoming severe.

The NOAA/NWS Storm Prediction Center is forecasting the potential for severe thunderstorms with very large hail and damaging wind gusts across northern Louisiana and southwest Mississippi this afternoon and tonight.

According to William Bunting, Chief of Forecast Operations at the NOAA/NWS Storm Prediction Center, an isolated tornado or two will also be possible in this area. 

Very large hail is also possible with severe storms through this evening over portions of central and southern Texas including the San Antonio metro area, Bunting forecast.

There is also a threat of severe storms from the Rio Grande Valley to the Georgia Coast, according to the NWS.

More isolated severe storms are also possible over the southeast U.S. and into northern Florida, according to the NWS Storm Prediction Center.

Elsewhere, the next Pacific storm system is set to usher in another surge of moisture, leading to both heavy snow and rain in some cases across the Pacific Northwest early in the day on Monday.

Snowfall accumulations exceeding a foot are possible, especially in the higher elevations of the Cascades and at lower snow levels in the Olympics, according to the NWS.

The Associated Press contributed to this report.