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Advisories: A FREEZE WATCH IS IN EFFECT FROM MONDAY NIGHT THROUGH TUESDAY MORNING FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
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The upper air flow (shaded area with blue arrows) will keep clouds and moisture over us through tonight and then migrate to the North a bit. A frontal system is sliding down with that airflow, but it is falling apart and will clear out more quickly behind it. That jet stream will move to the North allowing high pressure to take over and bring back the sun, for a while at least, starting Monday. That’s a day sooner than I originally expected. An upper air trough of low pressure will help usher in a frontal system late in the week that will return the precipitation.
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WEEKEND METEOR SHOWER: The Earth has entered a stream of debris from Halley’s comet, source of the annual Orionid meteor shower. Forecasters expected the shower to peak Saturday morning with more than 15 meteors per hour, but it will continue for the next few days too. Check http://spaceweather.com for links to a live meteor radar, sky maps and observing tips. Good luck finding them through the clouds until Monday night, but remember you need to be away from the city lights to se much of anything.
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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 this evening, partly cloudy late tonight through Monday night, patchy frost late at night and early Tuesday AM, mostly sunny Tuesday afternoon, mostly clear Tuesday night, patchy frost again late at night and early Wednesday AM, mostly sunny in the afternoon, then partly cloudy Wednesday night lows 40-33 warming to near 40 Wednesday night highs 60-56. Mostly cloudy Thursday and Thursday night, mostly cloudy with a slight (20%) chance of rain Friday, a (40%) chance of rain Friday night, a (30%) chance of rain Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night, then a mix of clouds and sun with a slight (20%) chance of showers Sunday highs 64-60 warming to near 64 Sunday lows 43-46. (seasonal averages high 61 low 40)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy tonight and Monday AM, mostly sunny in the afternoon, mostly clear with patchy frost late Monday night and early Tuesday AM, sunny Tuesday afternoon, then mostly clear with patchy frost late Tuesday night and Wednesday AM, then partly cloudy Wednesday night lows 45-33 warming to near 40 Wednesday night highs near 60. Mostly cloudy Thursday and Thursday night, mostly cloudy with a slight (20%) chance of rain Friday, a (40%) chance of rain Friday night, mostly cloudy with a slight (20%) chance of rain and cooler Saturday and Saturday night, then mostly cloudy with a slight (20%) chance of rain Sunday highs 58-69 cooling to 62 Saturday lows 37-47. (seasonal averages high 63 low 44)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy this evening, mostly cloudy tonight and Monday AM, mostly sunny in the afternoon, mostly clear Monday night, sunny Tuesday, clear Tuesday, sunny Wednesday, then partly cloudy Wednesday night lows 48-40 warming to near 45 Wednesday highs 63-58. Mostly cloudy Thursday and Thursday night, mostly cloudy with a slight (20%) chance of rain Friday, a (30%) chance of rain Friday night, a (30%) chance of rain Saturday, then mostly cloudy with a slight (20%) chance of rain Saturday night and Sunday highs 62-59 lows near 50. (seasonal averages high 60 low 45).
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Forecast for the Cascades of Lane County: Partly cloudy this evening, mostly cloudy with a slight (20%) chance of showers tonight, a mix of clouds and sun Monday AM, mostly sunny Monday afternoon, partly cloudy at night, sunny Tuesday, mostly clear Tuesday night, mostly sunny Wednesday, then partly cloudy Wednesday night snow level 8,000 ft. falling to 7,000 ft. late tonight, free air freezing level 6,000 ft. Monday through Tuesday, rising to 7,500 ft. Tuesday night lows 33-25 warming to near 34 Tuesday night highs 44-50. A mix of clouds and sun Thursday, mostly cloudy Thursday night, mostly cloudy with a slight (20%) chance of rain Friday, a (40%) chance of rain Friday night, a mix of clouds and sun with a (40%) chance of rain Saturday, a slight (20%) chance of showers Saturday night, then a mix of clouds and sun with a slight (20%) chance of showers Sunday free air freezing level 10,000 ft. Thursday and Thursday night, snow level above 8,000 ft. Friday, 7,000 ft. Friday night, 6,000 ft. Saturday, then 7,000 ft. Saturday night and Sunday highs 55-48 warming to 54 Sunday lows near 35.
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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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Get your local Eugene-Springfield news on-line at Eugene Daily News.com.
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