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It’s time for my weekly weather quiz question. Here it is. What is lake-effect snow? Please remember to post your answer as a comment by clicking on “no comments /comments” in the upper right hand portion of this page under the caption, then add your comment. The first person to post the correct answer will win a week of free personalized weather forecasts tailored to your needs. The answer has to be a comment to win. An email answer will not count. Good luck.
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Advisories: A FROST ADVISORY IS IN EFFECT FROM 3 AM UNTIL 9 AM TODAY FOR THE NORTHERN AND CENTRAL COAST RANGE OF OREGON, THE WESTERN COLUMBIA RIVER GORGE, AND THE I-5 CORRIDOR FROM PORTLAND SOUTH THROUGH EUGENE. A FROST ADVISORY IS IN EFFECT FROM 2AM UNTIL 9 AM TODAY FOR CENTRAL DOUGLAS COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY. A FREEZE WATCH IS IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY MORNING FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST, CENTRAL DOUGLAS COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, JOSEPHINE COUNTY, AND JACKSON COUNTY. A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 9 AM TODAY FOR EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, AND JACKSON COUNTY. A FROST ADVISORY IS IN EFFECT FROM 1 AM UNTIL 9 AM WEDNESDAY FOR THE NORTHERN AND CENTRAL COAST RANGE OF OREGON, THE WESTERN COLUMBIA RIVER GORGE, AND THE I-5 CORRIDOR FROM PORTLAND SOUTH THROUGH EUGENE.
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The jet stream shows a trough of low pressure (“U” shape on yellow line) moving through Oregon and it will be followed by a short lived area of high pressure (“Arch” shape on yellow line). A large upper level low will take over late in the week we’ll see one of many frontal systems will bring the chance of rain to the Pacific Northwest.
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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 with patchy fog and possible frost early this AM, mostly sunny this afternoon, mostly clear tonight, patchy fog and frost with possible freezing fog late at night and early Wednesday AM, mostly sunny in the afternoon, partly cloudy and not as cold Wednesday night, partly cloudy Thursday, then mostly cloudy Thursday night highs 59-55 warming to near 60 Thursday lows 30-43. Mostly cloudy with a slight (20%) chance of rain Friday, a (40%) chance of rain Friday night, a (40%) chance of showers Saturday, mostly cloudy with a slight (20%) chance of showers Saturday night, a mix of clouds and sun Sunday, partly cloudy with a slight (20%) chance of showers Sunday night, then a mix of clouds and sun with a slight (20%) chance of showers Monday highs 62-59 lows near 46. (seasonal averages high 60 low 40)
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Forecast for the Umpqua Basin including Roseburg: Mostly clear with patchy frost early this AM, sunny this afternoon, clear with patchy frost late tonight and Wednesday AM, sunny in the afternoon, partly cloudy in the evening, mostly cloudy Wednesday night, then sunny Thursday, partly cloudy in the evening, then mostly clear Thursday night highs 57-63 lows 33-42. Mostly cloudy Friday, a (40%) chance of rain Friday night, mostly cloudy with a slight (20%) chance of showers and cooler Saturday and Saturday night, partly cloudy with a slight (20%) chance of showers Sunday, then mostly cloudy with a slight (20%) chance of showers Monday highs 64-60 lows 48-44. (seasonal averages high 62 low 43)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Partly cloudy with areas of frost inland early this AM, sunny this afternoon, mostly clear tonight with areas of inland frost late and Wednesday AM, sunny in the AM, party cloudy Wednesday afternoon, and at night, mostly sunny Thursday and then mostly cloudyThursday night highs 59-63 lows 38-45. Mostly cloudy with a (30%) chance of rain Friday, a (40%) chance of rain Friday night, mostly cloudy with a (30%) chance of showers Saturday, then mostly cloudy with a slight (20%) chance of showers Saturday night through Monday highs 62-58 lows near 50. (seasonal averages high 59 low 45).
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Forecast for the Cascades of Lane County: Sunny today, clear tonight, sunny Wednesday, partly cloudy Wednesday night, mostly sunny Thursday AM, then partly cloudy Thursday afternoon and night free air freezing level 6,000 ft. today, rising to 7,500 ft. tonight, then rising to 9,000 ft. Wednesday and Wednesday night, then 10,000 ft. Thursday and Thursday night highs 44-54 lows 28-36. Mostly cloudy Friday, mostly cloudy with a (40%) chance of rain Friday night, mostly cloudy with a (40%) chance of showers Saturday, a slight (20%) chance of showers Saturday night, a mix of clouds and sun with a slight (20%) chance of showers Sunday, partly cloudy with a slight (20%) chance of showers Sunday night, then a mix of clouds and sun with a slight (20%) chance of showers Monday free air freezing level 10,000 ft. Friday, snow level 7,000 ft. Friday night, 8,000 ft. Saturday through Monday highs 55-48 lows near 36.
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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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