EUGENE, Ore. -- Showers moved through the region on Thursday morning as part of two shortwaves that are expected. The second wave will push inland during the afternoon. Models continue to suggest that there will be deeper instability this afternoon from the daytime heat. This will increase the threat for thunderstorms.
Thursday: Showers w/ possible t-storms. Highs in upper 50s
Friday: Iso. AM showers, PM Rain. Highs in mid to upper 50s
Saturday: Rain. Highs in mid 50s
Sunday: PM Rain. Highs in mid 50s
Monday: Mostly cloudy w/ isolated showers. Highs in low to mid 60s.
Tuesday: Mostly cloudy w/ isolated showers. Highs in low to mid 60s
Wednesday: Mostly sunny/ slight chance. Highs in low 60s
While rain will be a player in the coming days, the continued storm activity will lead to some angry seas on Thursday. A High Surf Advisory has been issued for the entire Oregon Coast on Thursday through Friday morning. Swells will likely be between 16 and 18 feet with breakers 20 to 25 feet. These are the largest seas we have seen since last spring. During this time, stay off rocks and jetties and small craft should expect rough conditions.
Thursday night into Friday morning we will see decreased shower activity, but a few isolated showers are still likely. The next round of heavier rain arrives on Friday night into Saturday. Cooler air aloft will likely generate deep instability, once more, triggering a chance of thunderstorms.
Snow levels will also be dropping into the weekend to about 5,000 feet. Snow will likely be above Santiam Pass, which sits at 4,766 feet but Willamette Pass will be close as it sits at 5,090 feet. Areas to the north in the southern Washington Cascades will see the first significant snow of the season from this system. That has triggered a Winter Weather Watch in the southern Washington Cascades on Saturday.
Sunday morning will likely see a break from the shower activity, but it will be short lived. This is because the next system, of tropical origin, will reach the coast of Sunday night into Monday. Rain chances are expected to drop off heading in next week.
For more weather information, go to the KEZI 9 News StormTracker 9 weather page.