Here is this weeks weekly weather quiz question. There is a high speed river of air found in the middle and upper portions of the troposphere that helps control the movement of surface storm systems. What is it called? Please place your answer as a comment after the forecasts. The first person to post the correct answer will win a week of free personalized forecasts tailored to your needs. Good luck.
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A trough of low pressure (the “U” shaped dip in the jet stream over the Pacific Ocean just offshore) has helped to push a frontal system into the Pacific Northwest that brought back the rain. Weak high pressure aloft gave us a nice day today. Tuesday will have sunshine and no rain in the Valley, but by Tuesday night a new disturbance will be moving through keeping us wet until next weekend.
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Advisories: NONE AT THIS TIME.
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The Updated Pollen Count Forecast for the Eugene-Springfield area : Trees and Grass MODERATE, and weeds ABSENT. Data from Allergy and Asthma Research Group.
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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: Becoming mostly clear tonight, back to a mix of clouds and sun and a bit warmer Tuesday, cloudy with a good (50%) chance of evening rain, then rain Tuesday night lows 44-50 high 76. Mostly cloudy with showers and cooler Wednesday, showers Wednesday night and likely (60%) and cooler Thursday highs 65-60 low 47. Mostly cloudy with a (30%) chance of showers Thursday night and mostly cloudy Friday AM then a mix of clouds and sun in the afternoon with a slight (20%) chance of showers Friday low 47 high 67. Mostly sunny and warmer Saturday, mostly clear Saturday night, mostly sunny Sunday and Monday and mostly clear Sunday night highs 77-72 lows near 52 .
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Forecast for the Umpqua Basin including Roseburg: Partly cloudy tonight and Tuesday morning, mostly cloudy in the afternoon, then rain likely (60%) Tuesday evening and rain late Tuesday night lows 49-54 high 79 . Showers Wednesday and Wednesday evening with showers likely (60%) late at night and Thursday highs 67-60 low 47. Mostly cloudy with a (20%) chance of showers Thursday night, a slight (20%) chance of showers Friday morning, then partly cloudy and warmer in the afternoon and clearing Friday night lows 47-46 high 72 . Sunny and warmer Saturday and Sunday, mostly clear Saturday night highs 77-80 low 53. Partly cloudy Sunday night and Monday low 49 high 75.
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy tonight and Tuesday morning then mostly cloudy in the afternoon low 48 high 62. Mostly cloudy with rain Tuesday night and showers Wednesday and Wednesday evening, then rain likely (60%) late Wednesday night and showers likely (60%) Thursday lows 53-49 highs 60-62 . Mostly cloudy a (20%) chance of showers Thursday night, a slight (20%) chance Friday AM, then partly cloudy in the afternoon and evening clearing at night lows 47 high 63. Sunny and pleasant Saturday and Sunday, clear Saturday night highs 62-64 low 48. Partly cloudy Sunday night and Monday low 48 high 63.
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Forecast for the Cascades of Lane County: Becoming mostly clear tonight, mostly sunny Tuesday AM, a mix of clouds and sun with a slight (20%) chance of showers in the afternoon, and rain developing Tuesday night free air freezing level 11,000 ft. tonight, snow level above 8,000 ft. Tuesday and Tuesday night lows 36-39 high 64. Mostly cloudy with showers and cooler Wednesday and Wednesday night, then rain and snow showers Thursday snow level 6,500 ft. Wednesday falling to 5,500 ft. Wednesday night, and 4,500 ft. Thursday highs 51-44 low 32 . Mostly cloudy with a (20%) chance of showers Thursday night and Friday AM, then partly cloudy with a slight (20%) chance of afternoon showers snow level 5,000 ft. rising to 5,500 ft. low 33 high 56 . Partly cloudy Friday night, mostly sunny Saturday, Sunday, and Monday and mostly clear at night free air freezing level 8,000 ft. Friday night , 10,000 ft. Friday night, 10,000 ft. Saturday, 11,000 ft. Saturday night, and 12,000 Sunday and Monday lows 34-43 highs 65-70.
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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.