Memorial Day Weather Outlook: East Coast Showers, West Coast Heat

The National Weather Service forecasts that a slow-moving front will bring low pressure and plenty of moisture to the eastern half of the United States, leading to wet and active weather. More than 10 million people could face a level two out of five risk of severe thunderstorms, including parts of New Mexico, Texas, Florida, Georgia, Nebraska, South Dakota, and Minnesota. In contrast, a high-pressure area will dominate the Western United States, resulting in mostly dry and warmer-than-normal conditions. The Pacific Northwest might see some showers, with potential snow in the highest elevations of the Cascades. In the South, while the rain is needed after months of drought, there is a risk of flash flooding. An omega block pattern appears to be setting up, with a high-pressure area over parts of the Central United States and an active area to the south that will use very moist air to produce rounds of thunderstorms with "torrential downpours."

What is the weather forecast for the East Coast on Memorial Day?

The East Coast is expected to experience multiple rounds of showers and thunderstorms, potentially disrupting outdoor activities.

What is the weather forecast for the West Coast on Memorial Day?

The West Coast is expected to be mostly dry and warmer than normal, with the hottest temperatures in the desert valleys.

What is an omega block?

An omega block is an upper-air pattern with a high-pressure area over parts of the Central United States and an active area to the south, leading to thunderstorms with torrential downpours.

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