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Here is my new weekly weather quiz question. What is an “Omega High?” Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.
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An upper level trough of low pressure (Shaded “U” shape) and a frontal system will slide through bringing the rain chances from slight to likely by late tonight. With subtropical moisture moving in we have warmed up a bit too. A ridge of high pressure (Shaded “Arch” shape) will bring a little bit of sunshine between the showers over the weekend. Another frontal system will move in Saturday continuing the chance of rain.
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Advisories: NONE AT THIS TIME.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Cloudy with a slight (20%) chance of rain this evening, rain late tonight (0.25 in. of rain possible), rain Thursday (0.25 in. of rain possible), mostly cloudy with evening rain likely (60%), a slight (20%) chance of rain late at night (under 0.10 in. of rain possible), mostly cloudy and warmer Friday, partly cloudy in the evening, mostly cloudy late Friday night, mostly cloudy with a slight (20%) chance of showers Saturday afternoon, then rain likely (60%) Saturday night lows 46-40 highs 52-62 cooling to 55 Saturday. A mix of clouds and sun with a good (50%) chance of showers Sunday, partly cloudy with a slight (20%) chance of showers Sunday night, partly cloudy Monday, mostly cloudy with a good (50%) chance of rain Monday night through, Tuesday night, then mostly cloudy with a good (50%) chance of showers Wednesday highs 52-55 cooling to 50 Wednesday lows 42-37. (seasonal averages high 53 low 36)
Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with a (40%) chance of rain this evening, rain late tonight (0.10 in. of rain possible), rain Thursday (0.20 in. of rain possible), a slight (20%) chance of rain Thursday night, mostly cloudy with patchy fog Friday AM, partly cloudy and warmer Friday afternoon, partly cloudy in the evening, mostly cloudy late Friday night, mostly cloudy with a slight (20%) chance of rain Saturday afternoon, rain and colder Saturday night lows 46-40 highs 57-65 cooling to 58 Saturday. Mostly cloudy with a (40%) chance of showers Sunday, partly cloudy Sunday night and Monday, mostly cloudy with a slight (20%) chance of rain Monday night, cloudy with rain likely (60%) Tuesday and Tuesday night, then mostly cloudy with showers likely (60%) Wednesday highs near 53 lows near 39. (seasonal averages high 56 low 38)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with rain tonight (0.20 in. of rain possible), rain Thursday (0.35 in. of rain possible), mostly cloudy with a slight (20%) chance of rain Thursday night (under 0.10 in. of rain possible), patchy AM fog, mostly cloudy and a bit warmer Friday afternoon, partly cloudy in the evening, mostly cloudy late Friday night, mostly cloudy with a slight (20%) chance of rain Saturday afternoon, then rain Saturday night lows 48-40 highs 55-60 cooling to 55 Saturday. Mostly cloudy with a (40%) chance of showers Sunday, just partly cloudy Sunday night and Monday, mostly cloudy with a good (50%) chance of rain Monday night, rain likely (70%) Tuesday and Tuesday night, then mostly cloudy with showers likely (70%) Wednesday highs 56-50 lows 42-39 warming to 42 Monday night. (seasonal averages high 53 low 41)
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Forecast for the Cascades of Lane County: Mostly cloudy with a good (50%) chance of rain and snow this evening, rain and snow late tonight (0.25 in. of rain possible, 2 in. of snow possible), rain Thursday (0.50 in. of rain possible), cloudy with evening rain likely (70%,) a (40%) chance of rain late Thursday night (0.10 in. of rain possible), a mix of clouds and sun and a bit warmer Friday, just partly cloudy Friday night, mostly cloudy with a slight (20%) chance of showers Saturday afternoon, then rain Saturday night snow level 5,000 ft. tonight, 6,500 ft. Thursday and Thursday night, free air freezing level 9,000 ft. rising to 10,000 ft. Friday, 10,000 ft. Friday night, snow level 7,000 ft. Saturday, then 6,000 ft. Saturday night lows 30-35 cooling to near 28 Saturday night highs 40-52 cooling to 45 Saturday. Mostly cloudy with rain and snow showers likely (60%) Sunday, partly cloudy with a slight (20%) chance of rain and snow showers at night, just partly cloudy Monday, mostly cloudy with a slight (20%) chance of rain and snow showers Monday night, mostly cloudy with rain and snow likely (60%) Tuesday, a good (50%) chance of rain and snow at night, a good (50%) chance of rain and snow Tuesday night, then mostly cloudy with a good (50%) chance of rain and snow showers Wednesday snow level 3,000 ft. Sunday, 3,500 ft. Sunday night, free air freezing level 4,500 ft. Monday, snow level 4,000 ft. Monday night, 4,500 ft. Tuesday, 4,000 ft. Tuesday night, then 3,500 ft. Wednesday night highs 34-44 cooling to 33 Tuesday lows 24-28 cooling back to 24 Tuesday night.
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**Because weather forecasting is a combination of science, intuition, and timing there can be no absolute guarantees that individual forecasts will be 100% accurate. Nature is in a constant state of flux and sudden unexpected weather events can happen.
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