Area Forecast Discussion
Issued by NWS Riverton, WY
Issued by NWS Riverton, WY
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243 FXUS65 KRIW 070500 AFDRIW Area Forecast Discussion National Weather Service Riverton WY 1000 PM MST Wed Nov 6 2024 .KEY MESSAGES... - Warming trend and dry conditions through the weekend. - Next system early next week with increasing precipitation chances and cooler temperatures. && .DISCUSSION... Issued at 1128 AM MST Wed Nov 6 2024 IR currently depicts the upper level trough positively tilted south of the CWA now up to the upper Great Plains. Ridging has begun to build in from the west and southwest giving way to pristine late fall conditions in the coming days. Winter storm activity has pushed east with lingering clouds covering some of the CWA clearing west to east this afternoon. They hang on in the CPR and I-25 area longest towards late afternoon but will see enough sun to warm to above freezing. As a result of clearing earlier than anticipated, temperatures have been bumped up 3-5 degrees to stay above freezing for most of the CWA. However, with the clearing skies and winds diminishing this afternoon and overnight, temperatures will plummet to the coldest thus far this season with single digits east of the Divide and teens to the east. With ridging in place, expect a warming trend and continued dry conditions to end the work week and into the weekend. Light winds and mainly clear skies with no impacts expected. By late weekend on Sunday and into Monday, the upper level pattern becomes more meridional and active as the main finger of the PFJ dips back south off the Pacific northwest coast to the upper Rockies. Cold frontal passage sometime Monday night with the main trough on Tuesday. Impacts are not known specifically at this point in time but with the warmer temperatures above average, expect liquid precipitation east of the Divide and snow to the west along with higher elevations. It looks to be quick and progressive giving way to another ridge to build in to push that system out looking to be limited in impact at this time. Cooler temperatures back to more seasonable looks to occur through mid next week with warming into the later half. Time will tell, so stay tuned for updates in the coming days and enjoy the nice weather through the weekend. && .AVIATION /06Z TAFS THROUGH 06Z FRIDAY/... Issued at 956 PM MST Wed Nov 6 2024 VFR conditions will prevail through the period with mostly clear skies. Wind will generally be light at terminals, though with an exception at KCPR which will see gusts to around 20 knots after sunrise Thursday. && .RIW WATCHES/WARNINGS/ADVISORIES... None. && $$ DISCUSSION...Lowe AVIATION...Myers