Easter Weekend Outlook: Severe Threat in the South and Snow From the Rockies to the Upper Midwest - The Weather Channel

• Easter weekend is shaping up to be active in many parts of the country.
• Severe thunderstorms are possible across the South both Saturday and Sunday.
• Uncertainty remains, but this severe threat could be considerable and include a threat of tornadoes.
• Snow is expected from the Rockies to parts of the upper Midwest.

Easter weekend 's weather will likely bring severe thunderstorms to the South and spring snow to parts of the Rockies and upper Midwest.

A slow-moving upper-level low pressure system that's bringing rain to California and the Desert Southwest will accelerate into the Plains and East. Increasingly warm and humid air is expected to stream north ahead of the upper-level low and provide fuel for thunderstorms. Increasing wind shear – the difference in wind speed and/or direction with height - would support severe thunderstorms.

But this severe forecast isn't as straightforward as the ingredients suggest.

First, these upper lows moving out of the Southwest are among the biggest stumbling blocks for computer models and weather forecasters. They often move slower than expected and make forecasts a challenge.

Secondly, if a large area of heavy rain develops over the South this weekend, that would suppress the instability needed for severe thunderstorms at least in some areas.

The bottom line: There is a significant threat of severe thunderstorms in the South, potentially both Saturday and Sunday. If the ingredients come together just right, there could be a severe weather outbreak with tornadoes, damaging winds and hail. April is a prime month for these volatile setups.

(MORE: The Most Dangerous Three Months For Tornadoes in the U.S. Has Begun)

However, it's too soon to determine the details, including how widespread the severe weather will be, the magnitude of the tornado threat, the timing and the areas impacted.

Check back with us at weather.com for updates as this forecast becomes clearer in the next few days.

Snow, Too

Snow is in play for more northern locales this weekend.

Colder air will plunge into the Rockies, Plains and upper Midwest driven by a vigorous polar jet stream.

This setup could wring out snow from Montana to Colorado, eastward into parts of the Great Lakes this weekend.

(MORE: Yes, April is Actually the Snowiest Month in These Places)

Here's a recap:

Saturday

Severe thunderstorms and heavy rain are possible from parts of Texas and Oklahoma into the lower Mississippi Valley. This threat may persist Saturday night while spreading into other parts of the Deep South.

Snow should spread from the northern Rockies and High Plains during the day to parts of Colorado Saturday night. Some rain may change to snow Saturday night from parts of Nebraska and South Dakota to Upper Michigan.

Saturday's Forecast

(The green shadings depict where rain is expected. Areas that are shaded blue are expected to see snow. Purple-shaded locations may see either rain or snow. Areas in pink are expected to see sleet or freezing rain (ice).)

Easter Sunday

Severe thunderstorms and heavy rain are again possible in the Southeast.

Rain and some thunderstorms are also possible in the Ohio Valley and parts of the Northeast, primarily in the Mid-Atlantic states.

Snow should eventually wind down in the Rockies, but may persist from the central Plains to parts of the upper Midwest. Rain may change to wet snow Sunday night in parts of the western Great Lakes.

Sunday's Forecast

(The green shadings depict where rain is expected. Areas that are shaded blue are expected to see snow. Purple-shaded locations may see either rain or snow. Areas in pink are expected to see sleet or freezing rain (ice).)

The Weather Company’s primary journalistic mission is to report on breaking weather news, the environment and the importance of science to our lives. This story does not necessarily represent the position of our parent company, IBM.

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Easter Weekend Outlook: Severe Threat in the South and Snow From the Rockies to the Upper Midwest - The Weather Channel
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