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Advisories: NONE AT THIS TIME.
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A high pressure ridge (“Arch” shape on brown line) is building over us and will allow for two days of hot weather. The ridge will weaken Monday and Tuesday along with a weak cold front that will slide by mainly north of us next Tuesday not having any effect on our weather except to cool us down a bit. The high pressure ridge will strengthen again for another round of increasing temperatures. [Earth is entering a stream of debris from Comet Swift-Tuttle, source of the annual Perseid meteor shower. Worldwide observers are now reporting more than 30 Perseids per hour, a number that could triple during the weekend when Earth reaches the heart of the debris zone. Meteor shower forecasters recommend looking during the dark hours before dawn, especially Sunday morning, August 12th, when activity is expected to be highest. Visit http://spaceweather.com for sky maps, observing tips, and links to a live meteor radar].
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Sunny and warmer today, clear tonight, sunny and a bit warmer Sunday, partly cloudy Sunday night, AM clouds, sunny and a bit cooler Monday afternoon, then clear Monday night highs 90-92 cooling to 88 Monday lows 52-55. A mix of clouds and sun in the AM, mostly sunny Tuesday afternoon, clear Tuesday night, sunny Wednesday and Thursday with clear nights, then mostly sunny Friday highs 84-95 cooling to near 90 Friday lows 51-55. (seasonal averages high 84 low 52)
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Forecast for the Umpqua Basin including Roseburg: Sunny and warmer today, clear tonight, sunny and hot Sunday, mostly clear Sunday night, mostly sunny and a bit cooler Monday, then mostly clear Monday night highs 95-96 cooling to near 90 Monday lows 59-55. Mostly sunny and warmer Tuesday through Thursday with mostly clear nights, then sunny with a slight (20%) chance of thunderstorms Friday afternoon highs 90-96 lows near 58. (seasonal averages high 86 low 56)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy with patchy coastal fog this AM, sunny this afternoon, mostly clear in the evening, partly cloudy with patchy coastal fog late tonight, mostly cloudy Sunday AM with patchy coastal fog, sunny Sunday afternoon, mostly clear in the evening, partly cloudy with patchy coastal fog late Sunday night and Monday AM, partly cloudy in the afternoon and Monday night highs 66-63 lows near 55. Partly cloudy Tuesday through Friday AM, then sunny with a slight (20%) chance of thunderstorms Friday afternoon highs 65-68 lows near 56. (seasonal averages high 65 low 53).
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Forecast for the Cascades of Lane County: Sunny and warmer today and Sunday with clear nights, sunny and a bit cooler Monday, then mostly clear Monday night free air freezing level 16,000 ft. today through Sunday, 15,000 ft. Sunday night through Monday night highs 80-84 cooling to 79 Monday lows near 50. Mostly sunny Tuesday, clear Tuesday night, sunny Wednesday and Thursday with clear nights, then mostly sunny Friday free air freezing level 15,000 ft. Tuesday through Wednesday, 16,000 ft. Wednesday night, 15,000 ft. Thursday, 16,000 ft. Thursday night, then 15,000 ft. Friday highs 75-84 cooling to near 80 Friday lows 47-50 cooling to near 47 Thursday 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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