Area Forecast Discussion
Issued by NWS Missoula, MT
Issued by NWS Missoula, MT
082 FXUS65 KMSO 201851 AFDMSO Area Forecast Discussion National Weather Service Missoula MT 1251 PM MDT Thu Jun 20 2024 .DISCUSSION...Westerly flow will continue over the region for the next several days with relatively mild weather. Weak troughs and ridges will move through, causing small changes in afternoon cloud cover and mountain showers from day to day. Today and tomorrow will be some of those days with a weak trough causing some more afternoon cloud cover and isolated showers and thunderstorms, mainly in the mountains. For this weekend, a weak ridge will remain in place causing mostly sunny and warm conditions. Expect temperatures 10-15 degrees above average for this weekend. The next weak trough for the beginning of next week has recently trended farther north in models, and is now looking like a wind impact for western Montana with winds 15-20 mph from the west. The next significant trough to move into the northern Rockies looks like it will be late next week. There is considerable difference in the timing in the ensembles which vary in timing between next Thursday and next Saturday, but all the models consistently show a significant low pressure system coming late next week. && .AVIATION...A trough remains over the region, but it`s losing the battle with a ridge coming up from the U.S. Southwest. As a result of that and quite a lot of dry air at the mid-levels, showers and thunderstorms over the region this evening will be pretty subdued. Shower activity tomorrow will be focused along the Continental Divide. && .MSO WATCHES/WARNINGS/ADVISORIES... MT...None. ID...None. && $$