Wednesday, December 7, 2016

Extreme Cold Observed Monday night and Tuesday Morning

Public Information Statement
National Weather Service Riverton WY
917 PM MST Tue Dec 6 2016

...Extreme Cold Observed Monday night and Tuesday Morning...


****** Low Temperatures over the past 24 hours ******

Below is a list of stations that observed minimum temperatures that
were below zero over the past 24 hours ending at 9 pm Tuesday. Most
of these low temperatures occurred Tuesday morning.


Location                     Temp       Time/Date   Elevation (ft.)      

Bondurant                    -37 F     0800 AM 12/06   6650                 
2 NW Bondurant               -33 F     0751 AM 12/06   6726                 
21 W Big Piney               -30 F     0809 AM 12/06   8200                 
10 NNW Daniel                -27 F     0700 AM 12/06   7470                 
10 N Bondurant               -26 F     0900 AM 12/06   6770                 
7 NE Pinedale                -26 F     0726 AM 12/06   8530                 
3 NW Etna                    -26 F     0830 AM 12/06   5676                 
10 E Big Sandy               -25 F     0700 AM 12/06   9080                 
Fossil Butte                 -25 F     0400 PM 12/06   6780                 
32 ESE Jackson               -25 F     0700 AM 12/06   8750                 
17 NE Dubois                 -24 F     0300 AM 12/06   8400                 
Jackson Hole Airport         -24 F     1055 AM 12/06   6445                 
20 E Bondurant               -24 F     0800 AM 12/06   7740                 
Snider Basin                 -24 F     0800 AM 12/06   8060                 
Moose                        -23 F     0730 AM 12/06   6466                 
Afton Airport                -22 F     0755 AM 12/06   6220                 
Pinedale Airport             -22 F     0615 AM 12/06   7085                 
Big Piney Airport            -21 F     1053 AM 12/06   6974                 
6 NW Cora                    -21 F     0903 AM 12/06   7462                 
13 E Cokeville               -21 F     0800 AM 12/06   7460                 
Jackson - Coop               -21 F     0900 AM 12/06   6210                 
Jackson                      -21 F     0800 AM 12/06   6240                 
Kemmerer                     -21 F     0600 AM 12/06   6980                 
28 WNW Big Piney             -21 F     0800 AM 12/06   8500                 
8 W South Entrance Ynp       -20 F     0800 AM 12/06   7265                 
14 E Bondurant               -20 F     0800 AM 12/06   8240                 
New Fork Lake                -20 F     0700 AM 12/06   8340                 
South Entrance Ynp           -20 F     0700 AM 12/06   6900                 
South Entrance Ynp           -19 F     0700 AM 12/06   6920                 
9 E Big Piney                -18 F     1015 AM 12/06   6803                 
4 N Moose                    -18 F     0758 AM 12/06   6730                 
Old Faithful                 -18 F     0800 AM 12/06   7320                 
Pinedale                     -18 F     0715 AM 12/06   7310                 
Snake River At Jackson Lake  -17 F     0845 AM 12/06   6779                 
15 NE Cokeville              -17 F     0700 AM 12/06   8180                 
12 W Green River             -17 F     0700 AM 12/06   6130                 
18 WNW Buffalo               -17 F     0845 PM 12/06   8580                 
2 S Grant Village            -17 F     0800 AM 12/06   7980                 
Etna                         -16 F     0958 AM 12/06   5823                 
3 NW Etna                    -16 F     1001 AM 12/06   5692                 
Independence Rock            -16 F     0800 AM 12/06   5920                 
12 SW Lander                 -16 F     0800 AM 12/06   8700                 
8 NNE Moran Junction         -15 F     0800 AM 12/06   7030                 
5 SSE La Barge               -15 F     0700 AM 12/06   6530                 
Cokeville                    -14 F     0730 AM 12/06   6160                 
Thayne                       -14 F     0928 AM 12/06   5928                 
14 WSW Fort Washakie         -14 F     0800 AM 12/06   10100                
19 SW Pitchfork              -14 F     0800 AM 12/06   9550                 
16 E Boulder                 -14 F     0700 AM 12/06   9360                 
19 WSW Dubois                -14 F     0610 AM 12/06   8833                 
6 WNW Granger                -14 F     1100 AM 12/06   6359                 
1 NE Pinedale                -13 F     0933 AM 12/06   7382                 
6 NW Dubois                  -13 F     0745 AM 12/06   7189                 
Kemmerer Airport             -13 F     0310 AM 12/06   7285                 
Old Faithful                 -13 F     0845 AM 12/06   7350                 
Togwotee Pass                -13 F     0800 AM 12/06   9850                 
4 NE Bitter Creek            -12 F     0645 AM 12/06   6720                 
11 N Dubois                  -12 F     0700 AM 12/06   8750                 
Buffalo Bill Reservoir       -12 F     0745 AM 12/06   5357                 
3 SW Moose                   -12 F     0928 AM 12/06   6440                 
10 NW South Pass City        -12 F     0700 AM 12/06   9700                 
7 E Moran Jct                -12 F     0752 AM 12/06   7251                 
17 SW Meeteetse              -12 F     1000 AM 12/06   7950                 
Blind Bull Summit            -11 F     0600 AM 12/06   8900                 
10 N Dubois                  -11 F     0757 AM 12/06   8085                 
1 SW Canyon                  -11 F     0849 PM 12/05   7900                 
4 W South Entrance Ynp       -11 F     0445 AM 12/06   7040                 
15 E Cokeville               -11 F     0700 AM 12/06   7840                 
18 NW Buffalo                -11 F     0747 PM 12/06   8604                 
Extreme Sw Yellowstone       -10 F     0549 AM 12/06   6400                 
14 N Sunlight Basin          -10 F     0800 AM 12/06   9275                 
4 SW Jackson                 -10 F     0943 AM 12/06   6073                 
6 ENE Smoot                  -10 F     0700 AM 12/06   7600                 
N Wind River Mts             -10 F     0800 AM 12/06   9820                 
Lake Yellowstone             -10 F     0756 AM 12/06   7835                 
16 NNE Pahaska               -10 F     0800 AM 12/06   9400                 
Sylvan Lake                  -10 F     0900 AM 12/06   8420                 
19 SW Valley                 -10 F     1000 AM 12/06   8350                 
15 WSW Buffalo               -9 F      0700 AM 12/06   8360                 
5 WSW Dubois                 -9 F      0800 PM 12/05   9370                 
30 E Greybull                -9 F      0458 PM 12/06   8898                 
14 ESE Smoot                 -9 F      0700 AM 12/06   9000                 
17 E Shell                   -9 F      0900 AM 12/06   9580                 
13 W Fort Washakie           -9 F      0800 AM 12/06   8620                 
15 W Buffalo                 -9 F      0800 AM 12/06   8720                 
South Pass                   -9 F      1000 PM 12/05   9040                 
5 NW Granite Pass            -8 F      0800 AM 12/06   9350                 
Dubois Airport               -8 F      0615 AM 12/06   7297                 
Hoyt Peak                    -8 F      0745 AM 12/06   9800                 
3 E Wapiti                   -8 F      0830 AM 12/06   5400                 
4 W Pahaska                  -8 F      0900 AM 12/06   7120                 
Bald Mtn.                    -7 F      0800 AM 12/06   9380                 
14 SW Story                  -7 F      0800 AM 12/06   9860                 
Afton                        -7 F      0954 AM 12/06   6267                 
East Rim Divide              -7 F      0600 AM 12/06   7930                 
5 S Of South Entrance Ynp    -7 F      0430 AM 12/06   7020                 
Summit - Jackson Resort      -7 F      0300 PM 12/05   10318                
17 NW South Pass City        -7 F      0800 AM 12/06   9000                 
Powder River Pass            -7 F      0800 AM 12/06   9480                 
Rock Springs Airport         -7 F      1054 AM 12/06   6760                 
Rock Springs                 -7 F      0500 PM 12/06   6270                 
8 W South Pass City          -6 F      0650 AM 12/06   8120                 
1 SW Canyon                  -6 F      0900 PM 12/05   8090                 
Cody Airport                 -6 F      1056 AM 12/06   5100                 
Casper Airport               -6 F      1053 AM 12/06   5320                 
4 NE Thayne                  -6 F      0936 AM 12/06   6217                 
Farson                       -6 F      0932 AM 12/06   6657                 
Grand Targhee                -6 F      0700 AM 12/06   9260                 
19 N Arminto                 -6 F      0700 AM 12/06   8550                 
20 NE Cokeville              -6 F      0500 AM 12/06   9425                 
10 SW Kaycee                 -6 F      0800 AM 12/06   4900                 
2 NE Teton Pass              -6 F      0700 AM 12/06   8200                 
10 WNW Cody                  -6 F      0740 AM 12/06   8401                 
NE Entrance Yellowstone      -6 F      0830 AM 12/06   7360                 
Tower Falls                  -6 F      0800 AM 12/06   6266                 
1 NW Afton                   -5 F      1200 PM 12/06   6211                 
12 SE Pahaska                -5 F      0800 AM 12/06   9780                 
Cokeville                    -5 F      0921 AM 12/06   6191                 
1 S Bedford                  -5 F      1008 AM 12/06   6279                 
Kelly                        -5 F      1045 AM 12/06   6653                 
1 S Fontenelle Reservoir     -5 F      0600 AM 12/06   6390                 
15 SE Moran Jct              -5 F      0300 PM 12/05   10380                
Base - Jackson Resort        -5 F      1130 AM 12/06   6339                 
Mt Coffin                    -5 F      0300 PM 12/05   10870                
22 SE Casper                 -5 F      0800 AM 12/06   8500                 
Thermopolis                  -5 F      0400 PM 12/06   4313                 
8 S Casper                   -4 F      0652 AM 12/06   7740                 
17 N Alta                    -4 F      0603 AM 12/06   6830                 
15 N Pinedale                -4 F      0800 AM 12/06   9400                 
22 WSW Hamilton Dome         -4 F      0900 AM 12/06   8975                 
14 S Sylvan Pass             -4 F      0608 AM 12/06   8650                 
8 NE Afton                   -4 F      0700 AM 12/06   8450                 
Boulder Lake                 -3 F      0745 AM 12/06   7350                 
10 WSW Burris                -3 F      0800 AM 12/06   9630                 
Casper Mtn                   -3 F      0700 AM 12/06   7850                 
Grand Targhee - Chief Joseph -3 F      1115 AM 12/06   8800                 
3 NE Manila Ut               -3 F      0430 AM 12/06   6060                 
15 NE Cokeville              -3 F      0800 AM 12/06   8470                 
3 S Togwotee Pass            -3 F      1200 PM 12/06   10430                
12 ENE Ten Sleep             -3 F      0814 PM 12/06   8202                 
Lake Village                 -3 F      0700 PM 12/05   7875                 
6 S Lewis Lake In Ynp        -3 F      0800 AM 12/06   7850                 
Pahaska                      -3 F      0800 AM 12/06   6800                 
Riverton Airport             -3 F      1053 AM 12/06   5525                 
Deadman Mtn                  -2 F      0100 PM 12/06   10350                
3 E Pahaska                  -2 F      0757 AM 12/06   7500                 
13 SW Big Horn               -2 F      0800 AM 12/06   8870                 
Lander Airport               -2 F      1053 AM 12/06   5586                 
15 WSW Mammoth               -2 F      0849 PM 12/06   7900                 
16 S Hiland                  -2 F      0710 PM 12/06   6380                 
2 S Riverton                 -2 F      0745 AM 12/06   4901                 
Wind River Above Red Creek   -2 F      0715 AM 12/06   6400                 
Worland Airport              -2 F      1053 AM 12/06   4245                 
10 W Fort Washakie           -2 F      0801 PM 12/06   9235                 
Meeteetse                    -1 F      0931 AM 12/06   5797                 
Midwest                      -1 F      0932 AM 12/06   4865                 
13 WSW Sunlight Basin        -1 F      0500 AM 12/06   9200                 
18 SW Cody                   -1 F      1000 AM 12/06   8760                 
N. Fork Little Wind River    -1 F      0745 AM 12/06   6120                 
7 SW Barnum                  -1 F      0846 PM 12/06   6440                 
15 SE Rock Springs           -1 F      0244 AM 12/06   7550                 
Shoshoni                     -1 F      0500 PM 12/06   4837                 
Mammoth                      -1 F      0700 AM 12/06   6300                 

Observations are collected from a variety of sources with varying
equipment and exposures. Not all data listed are considered official.

Tuesday, December 6, 2016

How Cold Was It?

The first very cold morning of the winter was experienced by Star Valley and surroundings.

Here is a map of the minimums that were observed and reported this morning.

Minimum temperatures Dec 6 2016

There were even colder spots where official gauges are available.  One known cold spot is just north of Auburn west of the Auburn bridge over the Salt River.  Following is the reading on my vehicle and a couple views  from the same location.

-30F


However it was even colder in other nearby locations. The map below highlights two of them.  Bondurant WY where it dropped to -37F and -46F at the frigid location of Peters Sink near the top of Logan Pass west of Bear Lake Utah.


Snowfall totals for Sunday 12/4 and Monday 12/5:

A powerful winter storm first brought significant snowfall across
portions of western Wyoming Saturday night through Sunday night,
before shifting some significant snowfall east of the Divide Sunday
night and Monday. Below are preliminary snowfall totals and peak
wind gusts for this event. A final statement for this storm is
likely on Tuesday as additional reports are received. Casper broke
the daily snowfall record for December 5th with 7.1 inches of snow.
The old record was 5.8" set in 1978.


Snowfall totals for Sunday 12/4 and Monday 12/5:

Note: SnoTELS (Snow Telemetry) are remote sensing sites in high
mountain watersheds. Snowfall data from SNOTELS are estimated based
on snow water equivalent. 
 
Location                              Snowfall
Lincoln County... 
 Blind Bull Summit Snotel...         15 inches.
 Commissary Ridge...                 15 inches.
 Blind Bull Summit...                14 inches.
 Star Valley Ranch...                14 inches.
 Box Y Ranch...                      13 inches.
 Indian Creek Snotel...              12 inches.
 Spring Creek Divide Snotel...       10 inches.
 5 SSE Smoot...                       9 inches.
 Willow Creek Snotel...               9 inches.
 Cottonwood Creek Snotel...           8 inches.
 Kelley Ranger Station Snotel...      8 inches.
 2 SE Thayne...                     7.9 inches.
 3 SE Bedford...                      7 inches.
 Salt River Summit Snotel...          6 inches.
 Hams Fork Snotel...                  4 inches.
 Afton...                           3.6 inches.
Big Horn County... Shell Creek Snotel... 10 inches. Bone Springs Divide Snotel... 7 inches. Bald Mountain Snotel... 3 inches. Powder River Pass... 2 inches. Basin... 1 inch. Greybull... 0.1 inches. Fremont County... South Pass Snotel... 18 inches. Deer Park Snotel... 18 inches. Burroughs Creek Snotel... 16 inches. Castle Creek Snotel... 11 inches. Brooks Lake... 10 inches. Hobbs Park Snotel... 10 inches. Townsend Creek Snotel... 7 inches. Atlantic City... 6.1 inches. Cold Springs Snotel... 5 inches. St. Lawrence Alt Snotel... 5 inches. Little Warm Snotel... 4 inches. 10 WNW Dubois... 1.5 inches. Boysen Dam... 1 inch. 6 SW Lander... 0.5 inches. Dubois... 0.3 inches. Riverton Airport... 0.3 inches. Hot Springs County... Thermopolis... 3 inches. Owl Creek Snotel... 3 inches. 9 NE Thermopolis... 0.6 inches. Johnson County... Hansen Sawmill Snotel... 13 inches. Little Goose Snotel... 12 inches. Cloud Peak Reservoir Snotel... 10 inches. Soldier Park Snotel... 9 inches. 7 NE Buffalo... 6 inches. Bear Trap Meadow Snotel... 6 inches. 16 NNW Kaycee... 4 inches. Buffalo... 4 inches. 4 SSW Buffalo... 3.5 inches. Natrona County... Casper... 7 to 10 inches. Reno Hill Snotel... 7 inches. Casper Airport... 7.1 inches. (Daily Snowfall Record) Casper Mountain Snotel... 4 inches. Grave Spring Snotel... 3 inches. Park County... Blackwater Snotel... 16 inches. Marquette Snotel... 13 inches. 1 ENE Wapiti... 13 inches. Pahaska... 13 inches. Younts Peak Snotel... 10 inches. Beartooth Lake Snotel... 10 inches. Kirwin Snotel... 9 inches. Evening Star Snotel... 9 inches. 26 SW Cody... 8.5 inches. Cody... 4 to 7 inches. Timber Creek Snotel... 7 inches. 3 NE Sunshine... 5.2 inches. Wolverine Snotel... 5 inches. 3 NE Clark... 2 inches. 4 SW Powell... 0.4 inches. 4 ENE Powell... 0.2 inches. Sublette County... Kendall Ranger Station Snotel... 16 inches. Loomis Park Snotel... 15 inches. Triple Peak Snotel... 13 inches. Bondurant... 9.2 inches. Snider Basin Snotel... 9 inches. Gunsite Pass Snotel... 9 inches. New Fork Lake Snotel... 8 inches. East Rim Divide Snotel... 8 inches. Big Sandy Opening Snotel... 8 inches. Larsen Creek Snotel... 7 inches. Elkhart Park G.S. Snotel... 7 inches. 14 NW Pinedale... 5.6 inches. Pocket Creek Snotel... 5 inches. Daniel Fish Hatchery... 3 inches. Pinedale... 1.8 inches. Boulder Rearing Station... 1 inch. Sweetwater County... Green River... 0.5 to 1 inch. 7 SE Rock Springs... 0.5 inches. 4 NNW Rock Springs... 0.4 inches. Rock Springs... 0.4 inches. 5 N Farson... 0.3 inches. Teton County... Jackson Hole - Raymer... 21 inches. Jackson Hole - Mid Mountain... 19 inches. Grassy Lake Snotel... 18 inches. Phillips Bench Snotel... 17 inches. Jackson Hole - Rendezvous Bowl... 17 inches. Snake River Stn Snotel... 16 inches. Grand Targhee Snotel... 15 inches. Base Camp Snotel... 14 inches. Grand Targhee - Chief Joseph... 14 inches. Granite Creek Snotel... 13 inches. Snow King... 11 inches. Gros Ventre Summit Snotel... 11 inches. Togwotee Mountain Lodge... 11 inches. Togwotee Pass Snotel... 10 inches. 3 SSW Wilson... 9.5 inches. 1 ENE Teton Village... 9.5 inches. Jackson... 8 inches. Jackson Hole - Base... 8 inches. 12 NE Jackson... 7 inches. Washakie County... Powder River Pass Snotel... 5 inches. Middle Powder Snotel... 4 inches. 4 N Ten Sleep... 2 inches. Winchester... 1 inch. 8 SW Worland... 1 inch. Ten Sleep... 0.1 inches. Yellowstone National Park... Two Ocean Plateau Snotel... 27 inches. Lewis Lake Divide Snotel... 16 inches. Thumb Divide Snotel... 11 inches. Parker Peak Snotel... 10 inches. Sylvan Road Snotel... 8 inches. Sylvan Lake Snotel... 6 inches. Lamar Ranger Station... 4.6 inches. Canyon Snotel... 4 inches. Tower Falls Ranger Station... 0.5 inches.

Monday, December 5, 2016

Snow Fall Totals Monday PM


Public Information Statement
National Weather Service Riverton WY
220 PM MST Mon Dec 05 2016


***** Snowfall Reports *****

Location                              Snowfall
Lincoln County...
 Star Valley Ranch...                14 inches.
 Blind Bull Summit Snotel...          8 inches.
 2 SE Thayne...                     7.9 inches.
 3 SE Bedford...                      7 inches.
 Commissary Ridge...                  6 inches.
 Blind Bull Summit...                 6 inches.
 Box Y Ranch...                       5 inches.
 Spring Creek Divide Snotel...        5 inches.
 5 SSE Smoot...                       4 inches.
 Indian Creek Snotel...               4 inches.
 Afton...                           3.6 inches.
 Willow Creek Snotel...               3 inches.
 Cottonwood Creek Snotel...           3 inches.
 Kelley Ranger Station Snotel...      2 inches.
 Hams Fork Snotel...                  2 inches.
 Salt River Summit Snotel...          2 inches.
Big Horn County... Shell Creek Snotel... 10 inches. Bone Springs Divide Snotel... 7 inches. Bald Mountain Snotel... 3 inches. Powder River Pass... 2 inches. Basin... 1 inch. Greybull... 0.1 inches. Fremont County... Burroughs Creek Snotel... 16 inches. Castle Creek Snotel... 11 inches. Brooks Lake... 7 inches. Atlantic City... 6.1 inches. South Pass Snotel... 6 inches. Cold Springs Snotel... 5 inches. Hobbs Park Snotel... 4 inches. Deer Park Snotel... 4 inches. Little Warm Snotel... 3 inches. St. Lawrence Alt Snotel... 2 inches. Townsend Creek Snotel... 2 inches. 10 WNW Dubois... 1.5 inches. Boysen Dam... 1 inch. 6 SW Lander... 0.5 inches. Dubois... 0.3 inches. Riverton Airport... 0.3 inches. Hot Springs County... Owl Creek Snotel... 3 inches. Thermopolis... 1 inch. 9 NE Thermopolis... 0.6 inches. Johnson County... Hansen Sawmill Snotel... 13 inches. Little Goose Snotel... 12 inches. Cloud Peak Reservoir Snotel... 10 inches. Soldier Park Snotel... 9 inches. 7 NE Buffalo... 6 inches. Bear Trap Meadow Snotel... 6 inches. Buffalo... 4 inches. 16 NNW Kaycee... 4 inches. 4 SSW Buffalo... 3.5 inches. Buffalo... 1.4 inches. Natrona County... 1 SW Casper... 9 inches. Casper Airport... 5.8 inches. Casper... 2.5 to 4 inches. 3 WSW Casper... 3.4 inches. Powder River... 3 inches. Grave Spring Snotel... 3 inches. 5 SSW Casper... 3 inches. 1 S Casper... 2.8 inches. 4 WSW Casper... 2.3 inches. Midwest... 1 inch. 10 WSW Casper... 1 inch. 11 WSW Casper... 1 inch. Park County... Blackwater Snotel... 16 inches. Pahaska... 13 inches. Marquette Snotel... 13 inches. 1 ENE Wapiti... 13 inches. Younts Peak Snotel... 10 inches. Beartooth Lake Snotel... 10 inches. Kirwin Snotel... 9 inches. Evening Star Snotel... 9 inches. 26 SW Cody... 8.5 inches. Cody... 3.5 to 7 inches. Timber Creek Snotel... 7 inches. 3 NE Sunshine... 5.2 inches. Wolverine Snotel... 5 inches. 2 WSW Cody... 4 inches. 2 NE Cody... 3 inches. 4 SE Cody... 2.5 inches. 3 NE Clark... 2 inches. 4 SW Powell... 0.4 inches. 4 ENE Powell... 0.2 inches. Sublette County... Kendall Ranger Station Snotel... 16 inches. Loomis Park Snotel... 15 inches. Gunsite Pass Snotel... 9 inches. New Fork Lake Snotel... 8 inches. Big Sandy Opening Snotel... 8 inches. Larsen Creek Snotel... 7 inches. Elkhart Park G.S. Snotel... 7 inches. Triple Peak Snotel... 6 inches. 14 NW Pinedale... 5.6 inches. Pocket Creek Snotel... 5 inches. East Rim Divide Snotel... 4 inches. Daniel Fish Hatchery... 3 inches. Snider Basin Snotel... 3 inches. Pinedale... 1.8 inches. Boulder Rearing Station... 1 inch. Sweetwater County... Green River... 0.5 to 0.8 inches. 4 NNW Rock Springs... 0.4 inches. Rock Springs... 0.4 inches. 5 N Farson... 0.3 inches. Teton County... Grassy Lake Snotel... 18 inches. Jackson Hole - Rendezvous Bowl... 17 inches. Phillips Bench Snotel... 17 inches. Snake River Stn Snotel... 16 inches. Jackson Hole - Mid Mountain... 15 inches. Grand Targhee Snotel... 15 inches. Jackson Hole - Raymer... 14 inches. Base Camp Snotel... 14 inches. Granite Creek Snotel... 13 inches. Grand Targhee - Chief Joseph... 11 inches. Gros Ventre Summit Snotel... 11 inches. Togwotee Pass Snotel... 10 inches. 1 ENE Teton Village... 9.5 inches. Togwotee Mountain Lodge... 9 inches. Jackson... 4 to 8 inches. 12 NE Jackson... 7 inches. Jackson Hole - Base... 6 inches. Snow King... 6 inches. Moose... 3.5 inches. Jackson Dam... 2.5 inches. 3 SSW Wilson... 2.5 inches. Togwotee Pass... 2 inches. Washakie County... Powder River Pass Snotel... 5 inches. Middle Powder Snotel... 4 inches. 4 N Ten Sleep... 2 inches. 8 SW Worland... 1 inch. Winchester... 1 inch. Ten Sleep... 0.1 inches. Yellowstone National Park... Two Ocean Plateau Snotel... 27 inches. Lewis Lake Divide Snotel... 16 inches. Thumb Divide Snotel... 11 inches. Parker Peak Snotel... 10 inches. Sylvan Road Snotel... 8 inches. Sylvan Lake Snotel... 6 inches. Lamar Ranger Station... 4.6 inches. Canyon Snotel... 4 inches. Tower Falls Ranger Station... 0.5 inches.

Sunday, December 4, 2016

WINTER STORM WARNING UPPER SNAKE HIGHLANDS-CARIBOU HIGHLANDS

NATIONAL WEATHER SERVICE POCATELLO ID
317 AM MST SUN DEC 4 2016


UPPER SNAKE HIGHLANDS-CARIBOU HIGHLANDS-
INCLUDING THE CITIES OF...ST. ANTHONY...ASHTON...ISLAND PARK...
DRIGGS...VICTOR...HENRY...SODA SPRINGS...DOWNEY...
LAVA HOT SPRINGS
317 AM MST SUN DEC 4 2016

...WINTER STORM WARNING REMAINS IN EFFECT FROM 8 AM THIS MORNING
TO 5 PM MST MONDAY...

* IMPACTS...HEAVY SNOW WILL PRODUCE DIFFICULT DRIVING
  CONDITIONS. AREAS OF BLOWING SNOW MAY SIGNIFICANTLY REDUCE
  VISIBILITIES ON MOUNTAIN PASSES AND ROADWAYS.

* TIMING...AREAS OF VERY LIGHT SNOW WILL RAPIDLY INCREASE IN
  INTENSITY AND COVERAGE THIS MORNING AND CONTINUE INTO MONDAY.
  THE HEAVIEST SNOW IS EXPECTED THIS AFTERNOON AND EVENING. GUSTY
  WINDS AND AREAS OF BLOWING SNOW WILL DEVELOP THIS AFTERNOON AND
  CONTINUE OVERNIGHT.

* SNOW ACCUMULATIONS...5 TO 10 INCHES. AREAS IN THE BIG HOLE
  RANGE AND ALONG THE WYOMING BORDER NORTH OF DRIGGS COULD SEE
  ACCUMULATIONS OVER ONE FOOT.

* LOCATIONS...ISLAND PARK...DRIGGS...SODA SPRINGS...LAVA HOT
  SPRINGS...FISH CREEK SUMMIT...PINE CREEK PASS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING MEANS SIGNIFICANT AMOUNTS OF SNOW ARE
EXPECTED OR OCCURRING. STRONG WINDS AND REDUCED VISIBILITY IN
BLOWING SNOW ARE ALSO POSSIBLE. THIS WILL MAKE TRAVEL VERY
HAZARDOUS OR IMPOSSIBLE. IF YOU MUST TRAVEL... KEEP AN EXTRA
FLASHLIGHT... FOOD AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

Saturday, December 3, 2016

WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM SUNDAY TO NOON MST MONDAY

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
1153 AM MST SAT DEC 3 2016

...MODERATE TO HEAVY SNOW AND BLOWING SNOW POSSIBLE FOR THE
WESTERN MOUNTAINS AND VALLEYS SUNDAY THROUGH MONDAY MORNING...

.INCREASING PACIFIC MOISTURE IN COMBINATION WITH A STRONG UPPER
LEVEL DISTURBANCE...INCREASINGLY COLD AIR MASS...AND AN
EVENTUAL COLD FRONT PASSAGE...WILL BRING MODERATE TO HEAVY SNOW
IN ADDITION TO GUSTY SOUTH TO SOUTHWEST WINDS TO WESTERN AND
NORTHWESTERN WYOMING SUNDAY THROUGH MONDAY MORNING.


STAR VALLEY-SALT RIVER AND WYOMING RANGES-
INCLUDING THE CITIES OF...AFTON...ALPINE...STAR VALLEY RANCH...
THAYNE
1153 AM MST SAT DEC 3 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM 5 AM SUNDAY TO NOON MST
MONDAY...

THE NATIONAL WEATHER SERVICE IN RIVERTON HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN EFFECT
FROM 5 AM SUNDAY TO NOON MST MONDAY.

* TIMING...LIGHT SNOW ACROSS WESTERN WYOMING TODAY AND TONIGHT
  WILL GIVE WAY TO INCREASING SNOWFALL BY SUNDAY MORNING. MODERATE
  TO HEAVY SNOW IS EXPECTED SUNDAY EVENING...LASTING OVERNIGHT
  INTO EARLY MONDAY MORNING BEFORE DECREASING IN INTENSITY THROUGH
  THE REST OF THE MORNING HOURS.

* TOTAL SNOWFALL...POSSIBLE 6 TO 12 INCHES IN THE MOUNTAINS WITH 3
  TO 6 INCHES IN THE STAR VALLEY.

* WIND AND VISIBILITY...SOUTHWEST WIND INCREASING TO 15 TO 25 MPH
  WITH GUSTS 35 MPH BY SUNDAY AFTERNOON MAY CAUSE AREAS OF
  BLOWING AND DRIFTING SNOW...WITH VISIBILITY LIMITED TO ONE HALF
  MILE OR LESS AT TIMES ON SALT RIVER PASS.

* IMPACTS...ROADS MAY BECOME SLICK...SLUSHY AND SNOW PACKED WITH
  LIMITED VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR
  ACTIVITIES SHOULD BE PREPARED FOR ADVERSE WINTER WEATHER
  CONDITIONS AND TAKE THE PROPER PRECAUTIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW MEANS PERIODS
OF SNOW WILL CAUSE PRIMARILY TRAVEL DIFFICULTIES. BE PREPARED FOR
SNOW COVERED AND SLICK ROADS WITH LIMITED VISIBILITIES. SLOW DOWN,
AND ALLOW EXTRA TIME TO REACH YOUR DESTINATION. CHECK THE LATEST
ROAD CONDITIONS AT WYOROAD.INFO OR BY DIALING 5 1 1.

WINTER STORM WATCH FOR NORTHWEST WYOMING LATE SATURDAY NIGHT INTO MONDAY



WHILE THE CURRENT FORECAST INDICATES THE GREATER SNOW WITH THIS NEXT STORM
WILL BE NORTH OF STAR VALLEY, SEVERAL INCHES ARE LIKELY IN THE STAR VALLEY 
REGION AS WELL BE MONDAY. 

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE RIVERTON WY
115 AM MST SAT DEC 3 2016

...MODERATE TO HEAVY SNOW AND BLOWING SNOW POSSIBLE FOR PORTIONS
OF YELLOWSTONE NATIONAL PARK...THE TETON MOUNTAINS...THE GROS
VENTRE MOUNTAINS...AND THE JACKSON VALLEY SUNDAY THROUGH MONDAY
MORNING...

.INCREASING PACIFIC MOISTURE IN COMBINATION WITH A STRONG UPPER
LEVEL DISTURBANCE...INCREASINGLY COLD AIR MASS...AND AN EVENTUALCOLD
FRONT PASSAGE...WILL BRING MODERATE TO HEAVY SNOW IN ADDITION TO
GUSTY SOUTH TO SOUTHWEST WINDS TO WESTERN AND NORTHWESTERN WYOMING
SUNDAY THROUGH MONDAY MORNING.


JACKSON HOLE-
INCLUDING THE CITY OF...JACKSON
115 AM MST SAT DEC 3 2016

...WINTER STORM WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
MONDAY MORNING...

* TIMING...LIGHT SNOW ACROSS WESTERN AND NORTHWESTERN WYOMING
  TODAY AND TONIGHT WILL GIVE WAY TO INCREASING SNOWFALL BY
  SUNDAY MORNING. MODERATE TO HEAVY SNOW IS EXPECTED OVER THE
  JACKSON VALLEY BY SUNDAY EVENING...LASTING OVERNIGHT INTO EARLY
  MONDAY MORNING BEFORE DECREASING IN INTENSITY THROUGH THE REST
  OF THE MORNING HOURS...

* TOTAL SNOWFALL...POSSIBLE 6 TO 10 INCHES

* WIND AND VISIBILITY...SOUTHWEST WIND INCREASING TO 15 TO 25
  MPH WITH GUSTS 30 TO 40 MPH BY SUNDAY AFTERNOON MAY CAUSE
  AREAS OF BLOWING AND DRIFTING SNOW...WITH VISIBILITY LIMITED
  TO ONE HALF MILE OR LESS AT TIMES.

* IMPACTS...ROADS MAY BECOME SLICK...SLUSHY AND SNOW PACKED WITH
  LIMITED VISIBILITY AT TIMES. PEOPLE PLANNING OUTDOOR
  ACTIVITIES SHOULD BE PREPARED FOR ADVERSE WINTER WEATHER
  CONDITIONS AND TAKE THE PROPER PRECAUTIONS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW AND/OR BLOWING SNOW THAT MAY IMPACT TRAVEL. CONTINUE TO
MONITOR THE LATEST FORECASTS.