What You Need To Know About The Rapid Snowmelt In MT

Over the last few weeks, Montana has looked like a winter wonderland, with below-average temperatures and above-average snowfall.

But just as quickly as the snow and cold settled in, it's about to pack up and move on out.

A rapid increase in temperatures and stronger wind will be the driving force behind the snow seemingly disappearing overnight.

Chinook Winds

If you've spent time in Central Montana, you've probably heard of Chinook winds.

Ultimately, Chinooks refers to the strong winds that downslope off the Rocky Mountains, causing the air to compress, heat up, and enhance snowmelt throughout central Montana.

These winds received their name from the Chinook Indians, who called the Pacific Northwest along the Columbia River home.

You may have also heard of these winds called snow eaters on occasion.

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Rapid Snowmelt In Montana

Rapid snowmelt brings a few weather impacts that we need to be aware of over the next few days.

• Flooding
  • Although generally minimal this time of the year flooding is still a reality with the rapid snowmelt. Many low-lying areas will experience accumulating water, especially as the ground remains frozen.
• Ice jams
  • Believe it or not, Montana is home to the most reported ice jams in America. This happens when there is rapid freezing and thawing and large chunks of ice break apart and refreeze along the river. Ice jams can cause extreme damage downstream when they break loose.
• Rain
  • Although rain is not a direct impact of rapid snowmelt, if it happens during a time of snowmelt, it can cause even more concern. The rain, in addition to warmer temperatures, can cause even quicker snowmelt, which will lead to significant flooding.

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