Preliminary Snowfall and Peak Wind Gusts from Sunday night through Monday night

Preliminary Snowfall and Peak Wind Gusts from Sunday night through Monday night

Cody Bowl in the Tetons-Tuesday Morning
National Weather Service Riverton WY
0540 AM MST Tue Jan 22 2019

...Preliminary Snowfall and Peak Wind Gusts from Sunday night
through Monday night...

A winter storm began to impact far western Wyoming Sunday night with
light to moderate snowfall. The storm began to intensify by around
sunrise Monday with snow breaking out across southwest Wyoming while
a strong cold front entered northern Wyoming. This strong cold front
swept southward to the Continental Divide by late Monday morning,
and then across south-central Wyoming by mid-afternoon. A period of
heavy snow was common along the cold front, followed by a steady
light to moderate snow especially in favored upslope regions. Strong
northerly winds of 20 to 40 mph with gusts 40 to 60 mph were common
in wake of this cold front. The strong wind caused significant
blowing and drifting of snow with severely reduced visibility in
rural areas. Several roads and interstates were closed across
central and southern Wyoming. The winter storm gradually ended
Monday night into Tuesday morning from north to south as the snow
tapered off, and the winds weakened.

Below are preliminary snowfall totals, followed by peak wind gusts
for this winter storm. Due to the strong wind, snow measurements
were a challenge, and varied considerably over a small distance.
Except for Snotel data (mountain sites), much of the snowfall data
was received yesterday. Additional snowfall data will be gathered
this morning, and an updated final snowfall statement will be issued
this afternoon.

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

Big Horn County...
 Bald Mountain Snotel...              5 inches.
 Bone Springs Divide Snotel...        1 inch.

Fremont County...
 9.5 SW Lander...                    13 inches.
 Townsend Creek Snotel...            11 inches.
 Deer Park Snotel...                  9 inches.
 Hudson...                            6 inches.
 South Pass Snotel...                 6 inches.
 St. Lawrence Alt Snotel...           6 inches.
 Hobbs Park Snotel...                 6 inches.
 Cold Springs Snotel...               5 inches.
 Lander Airport...                  4.2 inches.
 Little Warm Snotel...                2 inches.
 Brooks Lake...                       2 inches.
 Riverton...                        1.3 inches.
 Burroughs Creek Snotel...            1 inch.
 Riverton Airport...                  1 inch.
 Castle Creek Snotel...               1 inch.

Hot Springs County...
 Owl Creek Snotel...                  1 inch.

Johnson County...
 Little Goose Snotel...              15 inches.
 Cloud Peak Reservoir Snotel...       4 inches.
 Bear Trap Meadow Snotel...           3 inches.
 Hansen Sawmill Snotel...             1 inch.
 Soldier Park Snotel...               1 inch.

Lincoln County...
 Willow Creek Snotel...               4 inches.
 Indian Creek Snotel...               3 inches.
 Kelley Ranger Station Snotel...      3 inches.
 Star Valley Ranch...               2.5 inches.
 Hams Fork Snotel...                  2 inches.
 3 SE Bedford...                      2 inches.
 Commissary Ridge...                  2 inches.
 5 SSE Smoot...                       2 inches.
 Cottonwood Creek Snotel...           2 inches.
 Spring Creek Divide Snotel...        2 inches.
 Salt River Summit Snotel...          2 inches.
 Blind Bull Summit Snotel...          2 inches.
 Afton...                           1.5 inches.
 2 SE Thayne...                     1.5 inches.
 Blind Bull Summit...                 1 inch.
 Box Y Ranch...                     0.1 inches.

Natrona County...
 Reno Hill Snotel...                 17 inches.
 Casper Mountain Snotel...           14 inches.
 Grave Springs Snotel...              4 inches.
 Casper Airport...                  1.5 inches.

Park County...
 Marquette Snotel...                 10 inches.
 Timber Creek Snotel...               4 inches.
 Kirwin Snotel...                     4 inches.
 Pahaska...                           4 inches.
 Blackwater Snotel...                 3 inches.
 Wolverine Snotel...                  2 inches.
 Beartooth Lake Snotel...             2 inches.
 Evening Star Snotel...               2 inches.

Sublette County...
 Larsen Creek Snotel...               4 inches.
 Pocket Creek Snotel...               4 inches.
 Big Sandy Opening Snotel...          4 inches.
 Elkhart Park G.S. Snotel...          3 inches.
 Bondurant...                         3 inches.
 13 NE Big Piney...                 2.5 inches.
 Snider Basin Snotel...               2 inches.
 Gunsite Pass Snotel...               2 inches.
 New Fork Lake Snotel...              2 inches.
 Loomis Park Snotel...                2 inches.
 Kendall Ranger Station Snotel...     2 inches.
 Boulder Rearing Station...           1 inch.
 East Rim Divide Snotel...            1 inch.
 Triple Peak Snotel...                1 inch.
 14 NW Pinedale...                  0.8 inches.
 Daniel Fish Hatchery...            0.5 inches.
 Pinedale...                        0.2 inches.

Sweetwater County...
 Wamsutter...                         3 inches.
 Rock Springs...                      2 inches.

Teton County...
 Grand Targhee Snotel...              8 inches.
 Jackson Hole - Rendezvous Bowl...    6 inches.
 5 NW Jackson...                      6 inches.
 Jackson Hole - Raymer...           5.5 inches.
 3 SSW Wilson...                      5 inches.
 Phillips Bench Snotel...             5 inches.
 Granite Creek Snotel...              5 inches.
 Togwotee Pass Snotel...              5 inches.
 2 NE Teton Village...              4.5 inches.
 Grassy Lake Snotel...                4 inches.
 Snake River Stn Snotel...            4 inches.
 Gros Ventre Summit Snotel...         4 inches.
 Jackson Dam...                     3.2 inches.
 Darwin Ranch...                      3 inches.
 Jackson Hole - Base...               3 inches.
 Grand Targhee - Chief Joseph...      3 inches.
 1 NNW Alta...                        3 inches.
 Snow King...                         2 inches.
 Base Camp Snotel...                  2 inches.
 Togwotee Mountain Lodge...           2 inches.
 12 NE Jackson...                     2 inches.

Washakie County...
 Middle Powder Snotel...              8 inches.
 Powder River Pass Snotel...          3 inches.

Yellowstone National Park...
 Thumb Divide Snotel...              10 inches.
 Lewis Lake Divide Snotel...          9 inches.
 Lamar Ranger Station...              5 inches.
 Yellowstone East Entrance...         4 inches.
 Tower Falls Ranger Station...        4 inches.
 Two Ocean Plateau Snotel...          4 inches.
 Sylvan Lake Snotel...                4 inches.
 Canyon Snotel...                     4 inches.
 Sylvan Road Snotel...                3 inches.
 Parker Peak Snotel...                3 inches.


...PEAK WIND GUSTS SUNDAY NIGHT THROUGH MONDAY EVENING...

Below are peak wind gusts of 45 mph or greater that occurred Sunday
night through Monday evening. Strong northerly wind occurred in wake
of a Canadian cold front that plunged south across the area Monday.
A few locations in Natrona County measured their strongest wind
gusts from the southwest Sunday night ahead of the cold front.

LOCATION                     SPEED     TIME/DATE   ELEVATION (FT.)

...BIG HORN COUNTY...
GREYBULL AIRPORT             58 MPH    0156 PM 01/21   3935
30 E GREYBULL                53 MPH    0658 PM 01/21   8898

...FREMONT COUNTY...
BOYSEN RESERVOIR             52 MPH    0700 PM 01/21   4710
BEAVER RIM                   48 MPH    0341 PM 01/21   6784
2 W SOUTH PASS CITY          57 MPH    0855 PM 01/21   8185
8 W SOUTH PASS CITY          47 MPH    0450 PM 01/21   8120
7 SW MUDDY GAP               46 MPH    0650 AM 01/21   7380

...HOT SPRINGS COUNTY...
BOYSEN PEAK                  79 MPH    0535 PM 01/21   7300
10 S MEETEETSE               51 MPH    0342 PM 01/21   7127
KIRBY                        45 MPH    0501 PM 01/21   4350

...JOHNSON COUNTY...
12 N KAYCEE                  60 MPH    0521 PM 01/21   5287
BUFFALO AIRPORT              54 MPH    0508 PM 01/21   4970
18 NW BUFFALO                52 MPH    0947 PM 01/20   8604
25 ESE BUFFALO               52 MPH    0430 PM 01/21   4657
5 ESE STORY                  49 MPH    0321 PM 01/21   4673

...NATRONA COUNTY...
8 S CASPER                   55 MPH    0552 PM 01/21   7740
CASPER OUTER DRIVE           54 MPH    0250 AM 01/21   5463
16 S HILAND                  51 MPH    0110 AM 01/21   6380
20 N CASPER                  49 MPH    0536 PM 01/21   5677
CASPER AIRPORT               46 MPH    0908 PM 01/20   5320

...PARK COUNTY...
8 N MEETEETSE                56 MPH    1106 AM 01/21   5926
POWELL AIRPORT               54 MPH    0155 PM 01/21   5050
10 WNW CODY                  46 MPH    1040 PM 01/20   8401
POWELL                       45 MPH    0210 PM 01/21   4386
2 N FRANNIE                  45 MPH    1238 PM 01/21   4275
5 WNW CLARK                  45 MPH    1016 PM 01/20   4659

...SWEETWATER COUNTY...
I 80 - MILE MARKER 142       46 MPH    0605 PM 01/21   7162

...WASHAKIE COUNTY...
WORLAND AIRPORT              45 MPH    1232 PM 01/21   4245

OBSERVATIONS ARE COLLECTED FROM A VARIETY OF SOURCES WITH VARYING
EQUIPMENT AND EXPOSURES. WE THANK ALL VOLUNTEER WEATHER OBSERVERS
FOR THEIR DEDICATION. NOT ALL DATA LISTED ARE CONSIDERE

Comments are closed.