National Weather Service (NWS) meteorologists issued an urgent warning to more than 2,500 people on Monday afternoon as a dangerous snow squall created whiteout conditions in Jefferson County, southwest Montana.

Why It Matters

The warning comes as nearly 82 million Americans plan to travel more than 50 miles from home this week for Thanksgiving. It highlights the importance of immediate weather forecasts for travelers, as snow squalls can occur suddenly and with little warning, creating hazardous conditions with near-zero visibility for anyone trapped in them.

What To Know

Snow squalls can occur suddenly, plunging drivers into near-zero visibility and dangerous travel conditions only moments after skies were clear. The storms are known for causing major accidents, especially when drive

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