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Here again is my new weekly weather quiz question. One of the most important discoveries in modern Meteorology occurred during World War II. In 1944 our bombers taking part in the first raid on Japan had many of the planes run out of fuel much sooner than expected and many of them had to ditch in the ocean. What caused them to use up so much more fuel and later became one of the major tools in weather forecasting? Please post your answer as a comment after the forecasts on this page. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. Good luck.
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The upper air flow (yellow jet stream and dark colors for winds) is pushing lots of moisture our way to set us up for some more wet weather. A cold front has moved through the Pacific Northwest increasing the rain again. There will be a very short break Thursday. More frontal systems (position shown Friday) will be hitting Oregon this week with a much cooler air mass expected. This is news for the ski resorts because the milder and rainy weather we have been having will be replaced with colder temperatures, falling snow levels, and new serious mountain snow accumulations.
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Advisories: NONE AT THIS TIME.
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Here are your detailed forecasts. **
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with showers likely (60%) today (0.10 in. of rain possible), mostly cloudy with a good (50%) chance of showers tonight (0.10 in. of rain possible), AM clouds then a mix of clouds and sun with a slight (20%) chance of showers Thursday AM and Thursday night highs 46-42 lows 31-34. Mostly cloudy with rain becoming likely (60%) Friday (o.25 in. of rain possible), and then rain likely (60%-70%) Friday night through Tuesday highs 44-48 lows near 38. (seasonal averages highs 45 low 33)
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Forecast for the Umpqua Basin including, Roseburg: Patchy AM fog, mostly cloudy with a (40%) chance of showers today (snow level 2,000 ft. this AM), cloudy with a (30%) chance of showers tonight, mostly cloudy with a slight (20%) chance of showers Thursday, a (30%) chance of rain Thursday night highs near 45 lows near 34. Cloudy with a good (50%) chance of AM rain Friday (snow level 2,000 ft.), rain Friday afternoon through Tuesday highs 44-48 lows 37-40. (seasonal averages high 49 low 35)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Patchy AM fog, mostly cloudy with a (40%) chance of showers today (snow level 2,000 ft. this AM), cloudy with a (30%) chance of showers tonight, mostly cloudy with a slight (20%) chance of showers Thursday, a (30%) chance of rain Thursday night, cloudy with a (50%) chance rain Friday AM, then rain at night highs 47-50 lows near 40. Mostly cloudy with rain Friday through Tuesday highs 44-48 lows 40-42. (seasonal averages high 53 lows 39).
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Forecast for the Cascades of Lane County: Mostly cloudy with snow showers likely (60%) today (3-6 in. of snow possible), snow showers likely (60%) this evening, a (40%) chance of snow showers late tonight (2-4 in. of snow possible), mostly cloudy with a slight (20%) chance of snow showers Thursday AM, and mostly cloudy with a slight (20%) chance of snow Thursday night snow level 2,500 ft. today and Thursday, 3,000 ft. Thursday night highs 27-29 lows 20-23. Mostly cloudy with snow likely (60%) Friday (1-3 in. of snow possible), snow Friday night, snow and rain Saturday, snow Saturday night, then snow likely (60%) Sunday through Tuesday snow level at the surface except 3,000 ft. Saturday highs 30-33 lows between 28-23.
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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.