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A strong low pressure system will move across the center of the US on Tuesday igniting scattered severe thunderstorms from Texas to Ohio.

The risk for severe thunderstorms will begin along a cold front during the midday hours across northeast Texas, southeast Oklahoma, and up into central Missouri. As the cold front tracks eastward, it will move into an air mass that is increasingly favorable for the develop of gusty to severe thunderstorms.

Damaging winds and hail are the primary concerns with the strongest storms, however, frequent lightning and localized flash flooding can accompany almost any storm that develops.

Cities at risk for severe weather during the day Tuesday include: Dallas, Texas; Saint Louis, Missouri; and Indianapolis, Indiana.

The severe weather threat will shift eastward Tuesday evening to include cities such as Columbus, Ohio; Nashville, Tennessee; and Houston, Texas.

By later Tuesday night, most storms will have diminished below severe criteria.

The calendar says April, but some communities across the northern Mid-Atlantic will wake up to snow Monday morning. No April fools joke!

The Details

A cold front crossed the area on Sunday bringing a fresh supply of chilly air from Canada. Meanwhile, a fast moving disturbance will move across Virginia and off the East Coast Monday morning.

A heavy, wet snow is expected to fall to the north of the track of the storm. The heaviest accumulations are expected from Pennsylvania eastward to central New Jersey and southeast New York state.

This includes cities such as Pittsburgh, State College, and New York Sunday night into early Monday.

Most of the accumulations will occur on grassy and non-paved surfaces, however, if the snow comes down hard enough some roadways will become slushy and snow covered.

The snow is expected to affect the Monday morning commute from Philadelphia up to New York and into southern New England. The snow will be long gone by the Monday afternoon and evening commute.

For New York City, measurable April snow can happen, but they are not a common occurrence. Check out this list of the top 7 April snowstorms for New York dating back to 1868.

Millions of Christians across the US will celebrate Easter on Sunday. What is the weather outlook for the holiday weekend?

Northeast

A cold front will cross the Northeast later Saturday afternoon and Saturday night. This will usher in a fresh chilly air mass to the region. Snow showers will whiten some landscapes across the mountainous areas of New York and New England, while blustery and dry conditions persist elsewhere.

Highlights:

• Brisk and chilly
• Mountain snow showers

Southeast

The cold front crossing the Northeast will stall out just north of the area. Consequently, mainly dry weather is expected across the Carolinas back to Louisiana. Easterly winds off of the Atlantic Ocean will bring some scattered showers to the Florida peninsula.

Highlights:

• Mild and mostly dry
• Scattered showers across the Florida peninsula

Central States

Some precipitation will develop across the Mississippi Valley along the end of the cold front. A mix of rain, sleet, and snow will fall across Missouri, while mainly rain falls from Oklahoma through Tennessee. Across the northern Plains, seasonably cold air will dominate Easter Weekend with temperatures failing to get to 0°C in the coldest locations.

Highlights:

• Unsettled across the Mississippi Valley
• Cold in the northern Plains

Northwest

An area of low pressure will move into the Northwest bringing a mix of valley rain showers and mountain snow. Snow levels will start the weekend between 1,200-1,500 meters, but then fall to around 500 meters on Easter Sunday. A fresh 10-20 cm of snow is likely above 1,500 meters, while 5-10 cm of snow is expected between 500-1,500 meters.

Highlights:

• Valley rain showers and mountain snow
• Snow level ~1,500 meters dropping to 500 meters

Southwest

Tranquil weather will dominate the Southwest for Easter weekend. Cool and crisp mornings will give way to mostly sunny and warm afternoons for many locations. Along the central and southern California coast, patchy morning fog will be around before the sun is able to burn through the fog by midday.

Highlights:

• Dry and warm for many locations
• Patchy fog along the California coast