Sorry, but no winner for my weekly weather quiz question this week. Here it is one more time. Where in the world do they have the most days of thunderstorms in a calendar year? Again, extra congratulation points if you can give the number of thunderstorms there per year. The answer is the Island of Java in Indonesia where they have 322 days with thunderstorms per year.  I’ll have another weather quiz question starting next Monday. Remember, the first person to post the correct answer will win one week of free personalized weather forecasts tailored to your needs.

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An upper level low pressure trough (the  “U” shaped dip in the yellow jet stream line) is starting to move eastward over the Pacific Northwest. That will give us more clouds, a slight chance of a thunderstorm (maybe drizzle), and cool our temperatures a bit as a result. High pressure aloft (the “arch” shaped yellow line) and a surface high pressure center over the Eastern Pacific (represented by the blue “H”) will build in it early next week keeping much needed rain away from us.

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Advisories: NONE AT THIS TIME.

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The summer Pollen Count Forecast season for the Eugene-Springfield area is over. 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:  Partly cloudy tonight with a slight (20%) chance of an evening thunderstorm, then increasing clouds and a slight (20%) chance of areas of drizzle late tonight and early Saturday AM, a mix of clouds and sun and cooler Saturday afternoon, and partly cloudy Saturday night lows near 50 high 77. AM clouds then a mix of clouds and sun a bit warmer Sunday and Monday, partly cloudy Sunday evening increasing to mostly cloudy at night, and partly cloudy Monday night highs 80-83 lows again near 50-52. A mix of clouds and sun Tuesday through Friday (warming then cooling) and partly cloudy at night highs 84-89-86-83 lows near 53. (seasonal averages high 83 low 52)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly clear this evening and partly cloudy tonight, AM clouds then mostly sunny Saturday and Sunday, mostly clear Saturday night and Sunday evening and mostly cloudy Sunday night lows 55-53 highs 80-83. AM clouds then sunny Monday, mostly clear Monday night and Tuesday night,  mostly sunny and a bit warmer Tuesday highs 85-88 lows 57-54. Partly cloudy Wednesday morning, sunny in the afternoon, mostly clear in the evening and partly cloudy Wednesday night through Friday, highs 89-85 lows near 55.  (seasonal averages high 87 low 56)

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Forecast for the South Oregon Coast including Coos Bay and North Bend:  Mostly cloudy tonight with patchy fog, some late night and early AM coastal drizzle, becoming sunny Saturday afternoon and just a bit cooler,  partly cloudy Saturday evening, then mostly cloudy with areas of patchy fog and coastal drizzle late at night and early Sunday AM, mostly cloudy in the afternoon and Sunday night with patchy fog again late at night  lows 48-50 highs 60-63. AM clouds and fog, then sunny and a bit warmer Monday, and partly cloudy Monday night high 64 low near 50. Partly cloudy and a bit warmer again Tuesday through Friday highs 60-64 lows 47-50. (seasonal averages high 67 low 53).

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Forecast for the Cascades of Lane County:  Partly cloudy tonight with a slight (20%) chance of drizzle late tonight and Saturday AM in the lower elevations, a mix of clouds and sun Saturday afternoon and a bit warmer Sunday, and partly cloudy both nights free air freezing level 12,000 ft. rising to 13,000 ft. Saturday through Sunday night  lows 46-42 highs 68-73. A mix of clouds and sun all of next week Monday through Friday, and partly cloudy each night except clear Thursday night free air freezing level 13,000 ft. Monday rising to 14,000 ft. Tuesday night, back to 13,00 ft. Thursday and Thursday night, then 14,000 ft. Friday highs 76-83 Wednesday cooling from 80-72 Friday lows 45-48.

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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.