Early Taste Of Winter For N Rockies: 20″ Of Snow, 4°F In Wyoming

Written by on September 12, 2014 in United States of America with 0 Comments

It’s been quite the snowstorm for the Northern Rockies over the last 72 hours.

Source/Credit: NWS Billings

Source/Credit: NWS Billings

The models did a pretty good job from 5 days out.

ecmwfued-null--usnc-72-C-frozentot10

Actual snow cover!

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Wyoming Snowfall Totals
County Location Snowfall
Big Horn Shell Creek Snotel 16
Big Horn Bone Springs Divide Snotel 10
Big Horn Bald Mountain Snotel 7
County Location Snowfall
Fremont Castle Creek Snotel 2
Fremont St. Lawrence Alt Snotel 2
Fremont Little Warm Snotel 1
Fremont South Pass Snotel 1
Fremont 15 SW Lander 1
Fremont Riverton Airport 0.3
Fremont Riverton 0.3
County Location Snowfall
Hot Springs Owl Creek Snotel 2
County Location Snowfall
Johnson Little Goose Snotel 20
Johnson Cloud Peak Reservoir Snotel 13
Johnson Soldier Park Snotel 12
Johnson Hansen Sawmill Snotel 11
Johnson Buffalo 7 to 10
Johnson Bear Trap Meadow Snotel 3
Johnson 17 E Kaycee 1
Johnson Kaycee T
County Location Snowfall
Natrona Casper Mountain 4.3
Natrona Casper Mountain Snotel 4
Natrona Reno Hill Snotel 4
Natrona Grave Spring Snotel 1
County Location Snowfall
Park Blackwater Snotel 8
Park 5 E Cody 7
Park Marquette Snotel 7
Park Kirwin Snotel 6
Park Timber Creek Snotel 6
Park Wolverine Snotel 6
Park Evening Star Snotel 6
Park Beartooth Lake Snotel 5
Park Cody 3 to 5
Park Meeteetse 3 to 5
Park 4 SE Cody 4
Park 26 SW Cody 3
Park 3 NE Sunshine 3
Park Wapiti 3
Park Crandall Creek 3
Park 1 NE Wapiti 1
Park Pahaska 1
County Location Snowfall
Sublette Elkhart Park G.S. Snotel 3
Sublette New Fork Lake Snotel 2
Sublette Kendall Ranger Station Snotel 1
Sublette Big Sandy Opening Snotel 1
County Location Snowfall
Teton Gros Ventre Summit Snotel 1
Teton Togwotee Pass Snotel 1
County Location Snowfall
Washakie Powder River Pass Snotel 4
Washakie Middle Powder Snotel 1
County Location Snowfall
Yellowstone Parker Peak Snotel 4
Yellowstone Thumb Divide Snotel 1
Yellowstone Lewis Lake Divide Snotel 1
20140911snowfallSeptember Snow Tidbits

  Casper
(1939-2013)
Lander
(1911-2013)
Riverton
(1918-2013)
Earliest September Snow Sept. 8, 1962
0.2 inches
Sept. 7, 1941
0.3 inches
(note: Sept. 1929
data was missing)
Sept. 6, 1929
3.0 inches
Last Time Measurable Snow fell in Sept. Sept. 27, 2013 Sept. 27, 2013 Sept. 27, 2013
% of Time the First Measurable Snow occurs in Sept. 35% 35% 15%
Snowiest September
1982 with
11.5 inches
 1965 with
14.4 inches
1982 with
13.0 inches

Last time measurable snow occurred at the following locations:

  • Buffalo:  Sept. 27, 2013
  • Cody:  Sept. 22, 2000
  • Moose:  Sept. 22, 2006
  • Pinedale:  Sept. 24, 2007
  • Thermopolis: Sept. 27, 2013

Super Cold Air Followed!

A cold high has settled in from Canada in the wake of the record snow.

ecmwfued---usnc-00-A-mslpthkpcp_white

Clear skies, light wins over fresh snow cover typically means COLD. We’ve got widespread teens and even single digits over parts of Montana and particularly north-central Wyoming this morning.

Source/Credit: WYDOT

Source/Credit: WYDOT

Credit: NWS Billings

Credit: NWS Billings

The coldest temperature I can find is 4 degrees at Cloud Peak Reservoir, located within the Big Horn National Forest in north-central Wyoming.

Sub 10F Club

Wyoming

Cloud Peak Reservoir   4

Big Horn County Line  7

Castle Creek Snotel  7

Mill Creek Reservoir  9

Montana

Placer Basin Snotel  9

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graphob

Chilly afternoon ahead for the Plains…

ecmwfued-tmp--conus-18-A-2mtempanom_white

Near 30F below normal Saturday AM over the Heartland

gfs-tmp--conus-30-A-2mtempanom_white

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