Heavy snowstorm affecting the northern Rockies and parts of the central Rockies has turned record-breaking and resulted in widespread power outages and downed trees in parts of Montana and Colorado.
Havre, Montana experienced what was effectively a blizzard and recorded 37.6 cm (14.8 inches) of snow as of late Monday night, NWS Great Falls said. "However, with the power out, we'll need some time to verify the record." All of Havre was without power, Hill County sheriff said, with numerous trees and power lines down.
If the record is verified, this will be not only a daily record but a monthly, NWS said. "The current October record high snow is 21.8 cm (8.6 inches) set on October 4, 1914."
Public Information Statement issued by NWS Great Falls at 10:51 MDT, Tuesday, October 3, 2017, says storm total snowfall for Havre from Monday through Tuesday morning is 39.4 cm (15.5 inches).
"Unlike the snow the Rockies experienced in September, this storm is having a greater impact since valley locations are also being affected, in addition to typical mountain areas," Weather Channel's Chris Dolce explained.
The heaviest estimated snow amount from this storm is 76.2 cm (30 inches) in Rocky Boy, Montana. Drifts in at least one location were estimated to be 2.4 m (8 feet) high.
In Colorado, power outages began at around 20:00 local time on Sunday night and affected nearly 45 000 homes in Summit, Park and Lake counties, an Xcel Energy spokeswoman said. Roughly half of those lasted less than five minutes, but as of 23:00 there were still more than 10 000 homes without power.
Interstate 70 was closed in both directions at the Eisenhower Tunnel at around 18:30 local time Sunday night due to multiple crashes and again between Vail and Copper Mountain for a time Monday morning due to accidents and vehicles sliding off the icy road.