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NWS Riverton
@NWSRiverton
Official Twitter account for the National Weather Service Riverton, Wyoming. Visit weather.gov/twitter for details.
Riverton, WYweather.gov/rivertonJoined June 2012
223 Following
7,500 Followers

NWS Riverton’s Tweets

NWS Riverton
@NWSRiverton
Confidence in a significant winter storm continues to increase. There is still some uncertainty in snowfall amounts across central and southern WY, but model agreement is improving. For additional info about this event, please see our webpage at weather.gov/riw. #wywx
Event description
Timing of impacts (1)
Timing of Impacts (2)
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NWS Riverton
@NWSRiverton
Snow continues mainly for the north today. Gusty winds are expected for portions of the area today as a winter storm approaches for Friday, looking to impact the area through Monday. #wywx
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NWS Riverton
@NWSRiverton
A winter storm will impact the area Friday through Monday. Significant snow expected for the mountains but everywhere will have the chance of snow. Frigid temperatures follow for Sunday and beyond. Stay tuned as we approach this weekend and confidence builds for this event. #wywx
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NWS Riverton
@NWSRiverton
Snow continues today, mainly for the north, with light snow for portions of central Wyoming. Temperatures remain on the cool side. A winter storm will impact the area beginning Friday. #wywx
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NWS Riverton
@NWSRiverton
Although we are not expecting warmer temperatures anytime soon, it may be a good idea to keep this info. in mind for if/when temperatures do finally warm. The topic is overland flooding, which occurs when temperatures warm quickly, leading to rapid snow melt and flooding. #wywx
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NWS Riverton
@NWSRiverton
Dense Fog is enveloping the town of Riverton and surrounding areas in the Wind River Basin. An accident has already been reported, so take it slow and exercise caution when traveling this morning. A dense fog advisory is in effect until noon today. #wywx #fog
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NWS Riverton
@NWSRiverton
Light snow chances will continue in the coming days. More snow is favored to fall in the Bighorn Mountains. Otherwise, high temperatures continue to remain under normal for this time of year. #wywx
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NWS Riverton
@NWSRiverton
Northwest flow will keep things active this week. Scattered snow showers are likely, but most locations will receive little new snow. An Arctic Front may drop down this weekend with widespread snow and a drop in temperatures. Future updates at ow.ly/3XT550Myhan #wywx
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NWS Riverton
@NWSRiverton
Any snow showers will end early today. Otherwise, expect a mix of clouds and sunshine with diminishing wind. A weak system will cross the area tonight with some snow showers. Additional snow is likely this week, especially in northern Wyoming. #wywx
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NWS Riverton
@NWSRiverton
🧊More cold on the way! Early indications are for much colder air to arrive from the north next weekend. High temps by Sunday 1/29, could be at least 15-25F degrees colder than the lower to mid 30s we normally see. Brrr!
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NWS Riverton
@NWSRiverton
Light snow is expected this evening into Monday morning for southern and central Wyoming, with the highest snow totals forecast on north-facing slopes near Thermopolis, Lander, and Casper. Expect winter travel conditions tonight. #WYwx
Snow Forecast
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NWS Riverton
@NWSRiverton
2) However, we are also introducing probabilistic forecasts for some parameters, including snowfall. This chart is the likely minimum expected amount of snow, the 10th percentile chart.
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NWS Riverton
@NWSRiverton
A weather system will move from west to east across the area and bring mainly light snow to the area. The highest amounts are expected across portions of Fremont, Natrona and southern Hot Springs Counties. Temperatures will remain below normal. #wywx
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NWS Riverton
@NWSRiverton
Freezing fog most of last night caused soft rime ice to form on just about everything here at the office. Here are some more pics for your enjoyment. Patchy fog likely persists today in the Wind River Basin, with a return of dense freezing fog this evening and overnight. #WYwx
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NWS Riverton
@NWSRiverton
Freezing fog at our office last night brought a good coat of rime ice this morning. The difference between rime ice and hoarfrost is that rime ice forms with fog, hoarfrost does not. #wywx
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NWS Riverton
@NWSRiverton
The fog monster has crawled out of his lair to feast on the moisture from the snow. He is also bringing sharply reduced visibility to the Wind River Basin and Green River Basin. Here are some tips to keep you safe when driving in fog. #wywx #fog
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NWS Riverton
@NWSRiverton
Other than a few flurries, it will be a dry start to the weekend. Areas of morning fog will be around the central basins. A weather system will bring a chance of snow to much of the area on Sunday. #wywx
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NWS Riverton
@NWSRiverton
The next snow-bringing weather system moves in for Sunday. There is still a fair bit of uncertainty with the current locations of favored snow, so stay tuned for updates! #wywx
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NWS Riverton
@NWSRiverton
Somewhat milder today with snow showers ending this morning. Saturday will be a dry day before the next chance of more widespread snow moves in for Sunday. #wywx
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NWS Riverton
@NWSRiverton
Sad news for those tired of the cooler temperatures. The 6-10 day outlook has likely chances for Wyoming to continue seeing below-normal temperatures. Areas with snow cover will also remain on the cooler side. #wywx
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NWS Riverton
@NWSRiverton
❄️Some light snow over the west will make its way southeast this evening and overnight. Here is a map of the expected snow amounts through tomorrow evening. The best snow chances occur overnight. #wywx
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NWS Riverton
@NWSRiverton
Highs will be below average, especially in the Wind River & Upper Green River basins. Light snow will develop over the west this afternoon & spread SE & E tonight. This snow will generally impact areas SW of a Cody to Jeffrey City line. Snow amounts will be light. #wywx
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NWS Riverton
@NWSRiverton
There has been a LOT of snow so far this winter across central WY. Here are some charts showing how much snow fell over the past 15 years, through Jan 18th. No surprise, the most has been this winter. #wywx
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NWS Riverton
@NWSRiverton
Light snow ends through the morning for most, continuing for parts of Natrona County through mid-afternoon. Otherwise, a dry rest of the day with near-normal high temperatures. #wywx
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NWS Riverton
@NWSRiverton
Here is the latest snow forecast for 5 pm tonight through 5 pm Wednesday. The highest amounts are expected for the Casper area, with the highest totals expected for southern Casper. #wywx
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NWS Riverton
@NWSRiverton
Light snow spreads north into central and southwest Wyoming Tuesday and Tuesday night. Lower elevations of the east will see areas of dense fog Tuesday morning. Temperatures remain below normal.
Weather Story Graphic
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NWS Riverton
@NWSRiverton
⚠️Very dense freezing fog continues to occur across much of the Wind River Basin, including around Dubois, Crowheart, Riverton, and Lander. Visibility will be less than 1/4 mile at times through the night. Use caution and slow down if traveling tonight. #wywx
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