Western and Central Wyoming

Weather Forecast Office

Winter Storm Impacting the West through Wednesday, High Wind in Central Wind Corridor

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 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
	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.
	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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NWS Text Products and Forecasts

Area Forecast Discussion	Winter Weather Statement	Special Weather Statement	What's a "Watch?"
Observed Snow Totals or High Wind	High Wind Statement	Weather Story	What's a "Watch?"

**Quick View of Hazards (created at 3 PM on 1/9)**

Click Image To Enlarge 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


Model Forecast of Hourly Precipitation Darker Blues indicate heavier snow Click Image To Enlarge	Forecast Snowfall Tonight thru Wednesday Evening Click Image To Enlarge

Wednesday's Forecast Peak Wind Gusts
Click Image To Enlarge

**High Temperature Forecasts**

Today's High Temperature Click Image To Enlarge	Wednesday's High Temperature Click Image To Enlarge

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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)

                        
710
NOUS45 KRIW 191858
PNSRIW
WYZ001>020-022>030-200651-

Public Information Statement
National Weather Service Riverton WY
1151 AM MST Thu Dec 19 2024

...SUMMARY...

A strong jet streak pushed down into Wyoming on Wednesday, with the
right exit region situated over the area for several hours from
Wednesday morning into Wednesday evening. This allowed for the
strong jet streak wind to mix down to the surface for several
locations. High Wind Warnings were issued and verified in the Cody
Foothills, Absaroka Mountains, and Natrona County. Some local
terrain effects resulted in high wind at Buffalo Wednesday evening
as the jet streak slid east. There were reports of loose objects
getting blown around and some objects being blown over, but there
was no major structural damage or downed trees reported.

...HIGHEST WIND REPORTS...

Location                     Speed     Time/Date       Elevation (ft.)

...Wyoming...

...Fremont County...
Red Canyon - South Pass      81 MPH    1258 PM 12/18   6581
Lava Mountain (BTAVAL)       72 MPH    0845 PM 12/18   10359
Muddy Gap 7 SW               70 MPH    0750 PM 12/18   7379
Fort Washakie 10 W           68 MPH    0801 PM 12/18   9234
Skyline                      57 MPH    0640 PM 12/18   8500
Lander 7 NW                  55 MPH    0525 PM 12/18   5797
Elkhorn                      54 MPH    1257 PM 12/18   8084
Badwater Road                53 MPH    0630 PM 12/18   6270
Crowheart                    52 MPH    1145 PM 12/18   6137
Riverton Airport             52 MPH    0111 AM 12/19   5509

...Hot Springs County...
Boysen Peak                  61 MPH    0535 PM 12/18   7099

...Johnson County...
Buffalo Airport              64 MPH    0715 PM 12/18   4905
Story 5.5 SE (WYDOT)         61 MPH    0626 PM 12/18   4632
Buffalo 18 NW                60 MPH    0747 PM 12/18   8604
Tisdale Mountain             55 MPH    0250 PM 12/18   5557
Purdy East                   54 MPH    1100 PM 12/18   4687
Barnum 7 SW                  53 MPH    0446 PM 12/18   6439
I25 Us87 - Tisdale Divide    51 MPH    0306 PM 12/18   4990
BUFFALO                      50 MPH    0700 PM 12/18   4675

...Lincoln County...
Mount Coffin (BTAVAL)        93 MPH    0615 PM 12/18   10855

...Natrona County...
Claude Creek                 73 MPH    0420 PM 12/18   6282
Hiland 16 S                  68 MPH    0310 PM 12/18   6379
Casper 2.1 SW (WYDOT)        66 MPH    0202 PM 12/18   5462
I25 - Hat Six                65 MPH    0512 PM 12/18   5157
Coates Rd                    64 MPH    0100 PM 12/18   5866
Muddy Creek                  60 MPH    0600 PM 12/18   5571
Bar Nunn 13.6 N (WYDOT)      57 MPH    0202 PM 12/18   5656
Mills 2 NE (WYDOT)           53 MPH    0406 PM 12/18   5312
EVANSVILLE                   51 MPH    0431 PM 12/18   5187
Casper Airport               51 MPH    0611 PM 12/18   5327
Hiland 2.4 SE (WYDOT)        51 MPH    1206 AM 12/19   6115

...Park County...
Sunlight Basin 8 E (WYDOT)   85 MPH    0902 PM 12/18   8083
Dead Indian Ridge            71 MPH    0850 PM 12/18   8145
Irma Lake                    70 MPH    0740 PM 12/18   6222
Pahaska 3 E                  64 MPH    0657 PM 12/18   7500
Wood River East              62 MPH    0310 PM 12/18   7070
Cedar Mountain               58 MPH    1200 PM 12/18   7542
Shoshone Southfork           58 MPH    0100 PM 12/18   5896
Clark                        57 MPH    0145 PM 12/18   4270
Cody 10 WNW                  54 MPH    0240 PM 12/18   8400
Wapiti                       54 MPH    1205 AM 12/19   5993
Crandall                     53 MPH    0512 PM 12/18   6640

...Sublette County...
Hogsback                     54 MPH    0610 PM 12/18   9008
Cottonwood Merna             50 MPH    0700 PM 12/18   7830

...Teton County...
Jackson Hole - Summit (BTAVA 65 MPH    0500 PM 12/18   10328
Surprise Pinnacle (BTAVAL)   65 MPH    0530 PM 12/18   9770

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 considered official.

$$

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Current Radar & Web Cams - Click Thumbnails To Enlarge

Northern Rockies Radar	Riverton Radar

Pocatello	Billings

Salt Lake	Cheyenne

Road Conditions and Web Cameras

Teton Pass - Hwy 22	Alpine Junction - U.S. Hwy 26/89/191	Jackson	Togwotee Mountain Lodge

Togwotee Pass - U.S. Hwy 26	Dubois	Granite Pass - U.S. Hwy 14	Powder River Pass - U.S. Hwy 16

South Pass - Hwy 28	Cody	Buffalo - I-25/I-90 Interchange	Casper Mountain

Casper	Beaver Rim - U.S. Hwy 287	I-80 - Rock Springs	I-80 - Laramie

Click Here to See All Webcams

If you plan to travel, we recommend checking road conditions along your route and staying on top of road closures here. If you are on Twitter, follow the hashtag: #WyoRoad (or look below) for the latest weather affecting roads and road conditions in and around Wyoming.

Tweets by @NWSRiverton	#WyoRoad Tweets
Get the play-by-play on this storm and contribute your own snow reports to #wywx Follow Us on Twitter @NWSRiverton	On the road? Tweet road conditions to #WyoRoad!

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