12 to 15 inches (30 to 38 cm) in areas above 6,500 feet
National Weather Service Missoula
Butte/Blackfoot Region-
Jun 15 2020
…WINTER STORM WATCH FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING…
* WHAT…Heavy wet snow possible. For elevations 5000 feet and higher: total snow accumulations of up to 8 inches possible.
Locally higher amounts of 12 to 15 inches possible in the highest terrain (above roughly 6500 feet).
* WHERE…Butte, Georgetown Lake, Highway 12 Garrison to Elliston, Homestake Pass, and MacDonald Pass.
* IMPACTS…Travel could be very difficult. Backcountry conditions could become difficult, if not dangerous, during this
time.
……………….
National Weather Service Missoula MT
Bitterroot/Sapphire Mountains-
Jun 15 2020
…WINTER STORM WATCH FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING…
* WHAT…Heavy wet snow possible. For elevations 5000 feet and higher: total snow accumulations of up to 5 inches possible.
Locally higher amounts of 10 to 12 inches possible in the highest terrain.
* WHERE…Bitterroot/Sapphire Mountains. Skalkaho Pass. Highway 93 over Lost Trail Pass.
……………….
National Weather Service Great Falls
Beaverhead-Central and Southern Lewis and Clark-Madison-Jefferson-Gallatin-Including Big Hole Pass, Wisdom, Monida Pass, Virginia City, Boulder, Boulder Hill, Elk Park Pass, Homestake Pass, and Targhee Pass
…WINTER STORM WATCH FROM TUESDAY EVENING THROUGH WEDNESDAY MORNING
* WHAT…Heavy snow possible above 5000 feet. Total snow accumulations of up to 8 inches. Locally higher amounts
exceeding 12 inches are possible above 7500 feet.
* WHERE…Elevations above 5000 feet in Beaverhead, Central and Southern Lewis and Clark, Madison, Jefferson, and Gallatin
Counties.
* IMPACTS…Travel could be difficult. Hazardous backcountry conditions. The weight of the snow on branches with foliage
could cause them to break.
* Note…This Winter Storm Watch does not include the cities of Bozeman, Ennis, Dillon, or Helena.
https://forecast.weather.gov/wwamap/wwatxtget.php?cwa=mso&wwa=winter%20storm%20watch
Thanks to Kenneth Lund for this link
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