Area Forecast Discussion
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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205 FXUS65 KRIW 070346 AFDRIW Area Forecast Discussion National Weather Service Riverton WY 946 PM MDT Thu Jun 6 2024 .KEY MESSAGES... - Above normal temperatures continue through the upcoming weekend. - A weak cold front to the northeast will bring some showers mainly for higher elevations late Friday and Saturday. - Another wave to the northwest will bring a chance for showers to the western mountains on Sunday. && .DISCUSSION... Issued at 203 PM MDT Thu Jun 6 2024 Warm temperatures have continued today under strong early summer ridging. Expect this ridge to keep warm temperatures in place through the upcoming weekend into early next week. While the ridge may be holding place, there will be a few weak systems trying to push around the ridge through the weekend. The first one is moving into SW ID currently, and may spread a few showers into the western mountains tonight. Lack of instability will keep these showers light, with minimal accumulation. The second system sweep by to the north east later Friday and Saturday. While this second system sweeps a weak cold front through northeast WY, impacts for our CWA will be minimal, with a slight downtick in temps for Johnson and Natrona County Friday. There may be enough cooling aloft to bring a little more instability for more shower activity, especially over higher mountain peaks of the Bighorns, and greater Natrona County. Another system will sweep across the northern Rockies Sunday. Latest model runs have brought this system a little closer to northwest WY for Sunday, bring a little more moisture along from the Pacific, and occurs during peak heating. This is bringing a better chance for rainfall for all of NW WY, but chances remain low for any accumulation of 0.25". && .AVIATION /06Z TAFS THROUGH 06Z SATURDAY/... Issued at 943 PM MDT Thu Jun 6 2024 VFR conditions throughout the entirety of the period. Light winds and mainly clear skies overnight ahead of a weak upper level system that will skirt by to the north. Models have indicated a bit stronger winds Friday afternoon gusting up to 18-25kts at all locations by 18-21Z behind a weak frontal boundary. Otherwise, dry conditions with winds diminishing after 01-03Z with radiational cooling and a gradient behind the surface boundary. No other weather elements are expected at this time. Please see the Aviation Weather Center and/or CWSU ZDV and ZLC for the latest information on smoke, icing, and turbulence forecasts. && .RIW WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...Myers AVIATION...Lowe