NOAA: Winter Weather Advisory for Montana | Big Sky and Higher Elevations Could See 7-16″ Fresh Snow

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Snowfall probability. Credit: NOAA

A winter weather advisory will be in effect from midnight tonight through lunchtime Saturday for areas of Montana and Wyoming, with some late season heavy snowfall affecting higher elevations. Above 6,500 feet could see in excess of a foot of fresh snow.


* WHAT…Snow expected above 6500 feet. Total snow accumulations
of 2 to 5 inches, with locally higher amounts possible.

* WHERE…Elevations above 6500 Feet in Gallatin and Madison
Counties. This advisory does NOT include Bozeman, Ennis,
Bozeman Pass, nor Norris Hill.

* WHEN…From midnight tonight to noon MDT Saturday.

* IMPACTS…Plan on slippery road conditions and periods of
reduced visibility, especially around sunrise into the morning
hours. Outdoor recreationists will encounter cold and wet

* ADDITIONAL DETAILS…Snow will mostly accumulate on grassy
surfaces. However, periods of heavier snow expected approaching
sunrise into the morning hours may cause accumulation on roads.

The 7-day extended forecast. Credit: NOAA

The heaviest snowfall will occur through today, tonight and Saturday morning in southwestern Montana. The storm should clear out by the Memorial Day holiday when it will be dry and sunny, according to the forecast discussion.

A low pressure system will bring an increasingly moist southwest
flow aloft to the area and decrease snow levels to around 6500
feet tonight, bringing accumulating snow to portions of Southwest
Montana and along the Continental Divide. A few showers may also
drift northeast over portions of Central Montana on Saturday, but
the bulk of the plains should remain dry. The Memorial Day Holiday
currently looks mostly sunny and dry for much of the area, with
temperatures near to a bit above normal.
Hourly weather forecast. Credit: NOAA

Temperatures will be in the mid-to-high 20s throughout Saturday, with light winds.

GEM Forecast Totals Model:

GEM snowfall totals forecast. Credit: Tropical Tidbits

Other Info:

Credit: NWS

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