Here is another chance to answer this weeks weekly weather quiz question. This one should be easy. 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 Monday. A flat ridge of high pressure (a small “arch” just hitting the shore) will move eastward letting low pressure replace it. Today were looking for more sunshine, but saw more clouds instead and no rain in the Valley because of that high, but by this evening and tonight a new surface disturbance will be pushing through keeping us wet until next weekend. A new storm system will be moving in between Sunday night and Monday keeping the clouds and rain around for a while.
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Advisories: NONE AT THIS TIME.
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The Updated Pollen Count Forecast for the Eugene-Springfield area : Trees MODERATE, Grass HIGH, 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: Mostly cloudy with rain tonight, showers Wednesday, showers likely (60%) Wednesday night, and showers likely (60%) Thursday lows 50-47 highs 64-60. Mostly cloudy with a (40%) chance of showers Thursday night and mostly cloudy Friday AM with a slight (20%) chance of showers, then mostly sunny and warmer in the afternoon and mostly clear Friday night lows 45-50 high 69. Mostly sunny and warmer Saturday and Sunday, then mostly clear Saturday night and Sunday night highs 79-83 lows 48-53 . A mix of clouds and sun Monday, partly cloudy Monday night, and mostly sunny Tuesday highs near 72 low 47.
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain tonight and Wednesday night and showers Wednesday and likely (60%) Thursday lows 52-49 highs 66-60 . Mostly cloudy with a (30%) 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, clear Saturday night and mostly clear Sunday night highs 79-83 lows 53-52. Partly cloudy and cooler Monday and Monday night, then partly cloudy Tuesday morning breaking out to sunny and warmer in the afternoon highs 72-76 low 50.
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with rain tonight and Wednesday night and showers Wednesday lows 52-47 high 59. Showers likely (60%) along the shore Thursday and inland Thursday AM then afternoon showers inland then a (40%) of showers Thursday night high 56 low 47. Mostly cloudy a slight (20%) chance of showers Friday AM then partly cloudy in the afternoon and evening and clearing Friday night high 61 low 48. Sunny and pleasant and warmer Saturday and Sunday, clear Saturday night and mostly clear Sunday night highs 66-64 lows near 50. Partly cloudy Monday through Tuesday highs 58-62 low 48.
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Forecast for the Cascades of Lane County: Mostly cloudy with rain tonight, showers and cooler Wednesday (up to 1 in. of snow possible) and rain and snow showers Wednesday night (2-4 in. of snow above the passes) and Thursday and cooler snow level above 8,000 ft. falling to 7,000 ft. late tonight, 4,000 ft. rising to 4,500 ft. Thursday lows 38-32 highs 48-42. Mostly cloudy with showers likely (60%) Thursday night and cloudy with a (40%) chance of showers Friday AM, then partly cloudy and warmer with a slight (20%) chance of afternoon showers snow level 5,000 ft. rising to 7,000 ft. Friday afternoon low 32 high 37. Partly cloudy Friday night, mostly sunny and warmer Saturday and Sunday, and mostly clear Saturday night and Sunday night free air freezing level 9,000 ft. Friday night , 10,000 ft. Saturday, 13,000 ft. Saturday night through Sunday night lows 35-42 highs 72-76 . A mix of clouds and sun Monday and Tuesday and partly cloudy Monday night highs 66-62 low 38 .
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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.