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SYNOPSIS: Ongoing Light to occasional moderate snow over portions of western Wyoming is expected to continue this evening with a mix of rain and snow below 7000 feet.  A strong cold front will push across Western Wyoming late tonight into early Wednesday morning with a 3 to 6 hour time frame when snowfall rates around an inch an hour could occur especially over far western Wyoming.  Snow levels will also drop to valley floors with frontal passage.  This strong cold front will push across the rest of the Cowboy State Wednesday bringing much colder temperatures along with some light to moderate snowfall.  The winter storm comes to an end from northwest to southeast Wednesday afternoon and evening.  For snowfall amounts, please check out the graphics below.

  •   Road conditions can be found at wyoroad.info.
  •   Please monitor JHAVALANCHE.org if your plans include travel into the back country.

IMPACTS:

 

Snow and Slick icon Snow causing slick road conditions across the west especially tonight and Wednesday.  The rest of the area will see slick roads after frontal passage on Wednesday

Blowover risk icon

High winds from southeast Fremont County into Natrona County including the Casper area will create a blowover risk for lightweight or high-profile vehicles through Tonight. 
Livestock Image Icon Cold and wet conditions could have a significant impact on young livestock especially in wake of the cold front Tonight and Wednesday.

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Quick View of Hazards (created at 3 PM on 1/9)
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Winter Weather Advisory and Winter Storm Warning across
western Wyoming in effect through Noon Wednesday.  High Wind
Warning
in effect through midnight Tonight.



Snow Forecasts

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Model Forecast of Hourly Precipitation
Darker Blues indicate heavier snow

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Forecast Snowfall
Tonight thru Wednesday Evening

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Wednesday's Forecast Peak Wind Gusts
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High Temperature Forecasts

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Today's High Temperature
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Wednesday's High Temperature
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Snow Totals and Wind Reports will be posted and updated here once the storm occurs
(Please double check date and time of product)

000
NOUS45 KRIW 150300
PNSRIW
WYZ001>020-022>030-151600-

Public Information Statement
National Weather Service Riverton WY
900 PM MST Sun Oct 14 2018

Here are the snowfall totals from Saturday into Sunday
morning across western and central Wyoming. This will
be the final statement on this storm.

Location                              Snowfall

Big Horn County...
 Bone Springs Divide Snotel...       13 inches.
 Shell Creek Snotel...               13 inches.
 Bald Mountain Snotel...              9 inches.
 Hyattville...                      5.5 inches.
 9 ENE Greybull...                    2 inches.
 Greybull...                          2 inches.
 Basin...                             2 inches.

Fremont County...
 8.7 SE Lander...                     9 inches.
 Townsend Creek Snotel...             7 inches.
 9 SSE Lander...                    6.5 inches.
 Hudson...                          6.5 inches.
 Lander Airport...                    6 inches.
 St. Lawrence Alt Snotel...           6 inches.
 Riverton...                   4 to 6.2 inches.
 Lander...                     5 to 5.7 inches.
 Kinnear...                         4.5 inches.
 7 SE Lander...                       4 inches.
 Deer Park Snotel...                  4 inches.
 Riverton Airport...                3.3 inches.
 Hobbs Park Snotel...                 3 inches.
 Jeffrey City...                      2 inches.
 Burroughs Creek Snotel...            2 inches.
 Castle Creek Snotel...               2 inches.
 Burris...                            2 inches.
 Little Warm Snotel...                1 inch.
 Dubois...                          0.5 inches.

Hot Springs County...
 Owl Creek Snotel...                  6 inches.
 Lucerne...                         0.7 inches.
 9 NE Thermopolis...                0.6 inches.
 Thermopolis...                     0.4 inches.

Johnson County...
 Little Goose Snotel...              11 inches.
 Hansen Sawmill Snotel...             9 inches.
 Soldier Park Snotel...               7 inches.
 Cloud Peak Reservoir Snotel...       7 inches.
 Bear Trap Meadow Snotel...           7 inches.
 4 SSW Buffalo...                   4.5 inches.
 17 NNW Kaycee...                     4 inches.
 Buffalo...                           3 inches.
 13 SSE Buffalo...                    2 inches.
 17 E Kaycee...                     1.7 inches.

Lincoln County...
 Fossil Butte...                    0.5 inches.

Natrona County...
 1 SW Casper...                     6.5 inches.
 1 S Casper...                      5.8 inches.
 Grave Springs Snotel...              5 inches.
 Casper...                            5 inches.
 Casper Mountain Snotel...            5 inches.
 4 WSW Casper...                    4.9 inches.
 12 NE Lysite...                    4.5 inches.
 5 SSW Casper...                    4.5 inches.
 Casper Airport...                  4.1 inches.
 10 WSW Casper...                     4 inches.
 Powder River...                      3 inches.
 2 E Evansville...                    3 inches.
 Reno Hill Snotel...                  2 inches.
 18 SW Casper...                      1 inch.

Park County...
 Evening Star Snotel...               8 inches.
 Beartooth Lake Snotel...             6 inches.
 Kirwin Snotel...                     5 inches.
 Marquette Snotel...                  4 inches.
 2 WSW Cody...                        4 inches.
 Blackwater Snotel...                 4 inches.
 Cody...                              3 inches.
 26 SW Cody...                        3 inches.
 Pahaska...                           3 inches.
 3 NE Sunshine...                     2 inches.
 Wolverine Snotel...                  1 inch.
 3 NE Clark...                      0.5 inches.

Sublette County...
 Triple Peak Snotel...                2 inches.
 East Rim Divide Snotel...            1 inch.
 Gunsite Pass Snotel...               1 inch.
 Pocket Creek Snotel...               1 inch.
 14 NW Pinedale...                  0.6 inches.

Sweetwater County...
 4 NNW Rock Springs...              0.5 inches.
 Green River...              0.2 to 0.5 inches.
 Rock Springs...                    0.2 inches.

Teton County...
 Grand Targhee Snotel...              3 inches.
 Grassy Lake Snotel...                2 inches.
 Togwotee Pass Snotel...              2 inches.
 Darwin Ranch...                    1.7 inches.
 Snake River Stn Snotel...            1 inch.

Washakie County...
 Middle Powder Snotel...              9 inches.
 Ten Sleep...                         6 inches.
 16 SSE Ten Sleep...                  5 inches.
 Powder River Pass Snotel...          3 inches.
 8 SW Worland...                      1 inch.
 Winchester...                      0.3 inches.

Yellowstone National Park...
 Parker Peak Snotel...                4 inches.
 Yellowstone East Entrance...         4 inches.
 Sylvan Lake Snotel...                3 inches.
 Sylvan Road Snotel...                2 inches.
 Canyon Snotel...                     1 inch.
 Two Ocean Plateau Snotel...          1 inch.
 Snake River Ranger Station...      0.1 inches.

$$

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Casper
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