A 170 kt upper level jet dove south out of British Columbia into Washington and Oregon by early Saturday November 16th which provided strong lift and precipitation across north-central Idaho into western Montana.  As the orientation of the upper level jet became more northwesterly by the 17th and moved off to the north and east, showers were felt across much of the area.

Heavy Snow in NORTHERN CLEARWATER MOUNTAINS, IDAHO
From 15-NOV-13 17:00:00 to 17-NOV-13 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Public

A person from the public reported that 6 of heavy wet snow fell from the evening of Nov. 15 through 10:45 am PST Nov. 16. They reported that the heavy snow created difficult driving conditions. The Pierce RS SNOTEL at 3,080 ft., located 9.2 miles west of Pierce, measured 3 snow and 1.40 of precipitation from Nov. 15-17. The Shanghi Summit at 4,570 ft., located 3.5 mi. west-northwest of Cardiff reported 16 of snow with 2.40 of precipitation.

Winter Weather in SOUTHERN CLEARWATER MOUNTAINS, IDAHO
From 15-NOV-13 12:00:00 to 17-NOV-13 13:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: COOP Observer

The Dixie COOP observer at 5,740 ft. reported 15.3 of snow with 0.98 of precipitation between Nov. 15-18. A person from the public near Lowell reported that wet snow fell on back-country roads making travel miserable for hunters. The Mountain Meadows SNOTEL at 6,360 ft., located 13.2 miles southeast of Elk City reported 6 of snow with 0.50 of precipitation. The Savage Pass SNOTEL at 6,170 ft. located 5 miles southeast of Powell measured 16 of snow with 1.20 of precipitation. The web cam at Elk City showed snow on state highway 14 during the morning hours on Nov. 16.

Winter Weather in LOWER HELLS CANYON / SALMON RIVER REGION, IDAHO
From 15-NOV-13 17:00:00 to 17-NOV-13 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The Idaho Transportation Department highway sensor at Whitebird Hill at 4,222 ft. on US-95 reported snowfall between 5 pm PST Nov. 15 through 5:45 am PST on Nov 16 and from 11:45 pm on Nov. 16 through 8:45 am PST on Nov. 17. The road sensor reported very low grip values which indicated very slick conditions during this storm.

Winter Weather in OROFINO / GRANGEVILLE REGION, IDAHO
From 15-NOV-13 17:00:00 to 16-NOV-13 09:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The Idaho Transportation Department highway sensor located at 3,112 ft. at the top of Greer Grade, reported wet snow that fell between Nov. 15-16. A person from the public in Weippe reported 1.5 of snowfall at 9:12 am PST on Nov. 16.

Heavy Snow in NORTHERN CLEARWATER MOUNTAINS, IDAHO
From 15-NOV-13 13:00:00 to 17-NOV-13 15:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Hemlock Butte SNOTEL at 5,810 ft., located 8.1 miles east-southeast of Pierce reported a storm total snowfall of 23 with 2.50 of precipitation. Other totals include: 21 snow with 2.40 of precipitation at the Crater Meadows SNOTEL (5,960 ft.) and 22 snow with 2.50 of precipitation at the Cool Creek SNOTEL(6,280 ft.). The heavy snowfall in the mountains created dangerous conditions for hunters driving forest service roads during this event.

Heavy Snow in NORTHERN CLEARWATER MOUNTAINS, IDAHO
From 15-NOV-13 17:00:00 to 17-NOV-13 10:00:00 (PST-8)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: SNOTEL

The Elk Butte SNOTEL at 5,690 ft., located 4.9 miles northeast of Elk River(elevation 2,856 ft.) reported 19 of snow with 2.50 of precipitation. It reported heavy snow from 5 pm on Nov. 15 through 2 am PST Nov. 16, and also from 3 to 5 am PST on Nov. 16. The heavy snow presented dangerous conditions in the higher elevations posing a threat to hunters and other back-country recreation.

Winter Weather in EASTERN LEMHI COUNTY, IDAHO
From 16-NOV-13 02:00:00 to 17-NOV-13 09:00:00 (MST-7)
Property damage: 0.00K
Crop damage: 0.00K
Reported by: Department of Highways

The Idaho Transportation Department sensor at Gilmore Summit reported light snow with slick roads between Nov. 16-17. The Saddle Mountain SNOTEL at 7,900 ft., located one mile west of Lost Trail Pass reported 11 of total snowfall with 0.60 precipitation between Nov. 15-17.