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Here is my weekly weather quiz question. Define the term “deliquescence.” 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 FREEZE WARNING IS IN EFFECT FROM 11 PM TONIGHT UNTIL 9 AM WEDNESDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A FROST ADVISORY IS IN EFFECT FROM 11 PM TONIGHT UNTIL 9 AM WEDNESDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 4 PM FRIDAY FOR THE ENTIRE I-5 CORRIDOR FROM PORTLAND SOUTH THROUGH EUGENE. AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM THURSDAY FOR CENTRAL DOUGLAS COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, EASTERN CURRY COUNTY, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, CENTRAL, EASTERN, AND WESTERN LAKE COUNTY, JOSEPHINE COUNTY, AND JACKSON COUNTY.
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A high pressure ridge (“Arch” shape on the jet stream) is keeping us cold with some sunshine, as long as the fog clears. So, for all of the work week we’ll see at least some sunshine after the late night and early AM fog and/or freezing fog clear out. That also means that our air quality is suffering with the sinking air of high pressure holding on to the pollutants at the surface. The ridge will slide over then past us allowing more clouds and maybe a chance of precipitation returning next weekend as a cold front moves in from the 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: Mostly cloudy with patchy evening fog, mostly cloudy with areas of fog late tonight and Wednesday AM, mostly cloudy in the afternoon, mostly cloudy with areas of fog again late Wednesday night and Thursday AM, a mix of clouds and sun with some lingering fog in the afternoon, partly cloudy in the evening, mostly cloudy with areas of fog late Thursday night and Friday AM, a mix of clouds and sun in the afternoon, then mostly cloudy Friday night lows 27-33 cooling to 25 Thursday night then warming to 29 Friday night highs 40-43. Mostly cloudy with a slight (20%) chance of showers Saturday through Sunday, mostly cloudy Sunday night, a mix of clouds and sun Monday, mostly cloudy Monday night, then a mix of clouds and sun with a slight (20%) chance of showers Tuesday highs 45-50 cooling to 44 Tuesday lows 30-32. (seasonal averages high 46 low 34)
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Forecast for the Umpqua Basin including Roseburg: Mostly clear with patchy fog this evening, areas of fog and freezing fog late tonight and Wednesday AM, sunny in the afternoon with lingering patchy fog, mostly cloudy with areas of fog late Wednesday night and Thursday AM, sunny in the afternoon, mostly clear with areas of fog and freezing fog late Thursday night and Friday AM, sunny with patchy lingering fog Friday afternoon, partly cloudy with patchy evening fog, then areas of fog and freezing fog late Friday night lows 27-30 warming to 35 Friday night highs near 45. Mostly cloudy with patchy fog and freezing fog Saturday, mostly cloudy Saturday night, mostly cloudy with a slight (20%) chance of showers Sunday, then just partly cloudy Sunday night through Tuesday highs near 45 lows near 30. (seasonal averages high 48 low 37)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly clear this evening, partly cloudy with patchy fog and frost late tonight and Wednesday AM, sunny in the afternoon, mostly clear in the evening, partly cloudy with patchy Wednesday night and Thursday AM, sunny in the afternoon, patchy freezing fog late Thursday night and Friday AM, sunny Friday AM, sunny in the afternoon, then partly cloudy with areas of fog late Friday night lows 28-33 highs 46-50. Mostly cloudy with patchy freezing fog Saturday, mostly cloudy Saturday night and Sunday, then partly cloudy Sunday night through Tuesday highs near 50 lows near 36. (seasonal averages high 51 low 40).
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Forecast for the Cascades of Lane County: Mostly clear tonight, partly cloudy Wednesday AM, mostly sunny in the afternoon, partly cloudy Wednesday night and Thursday AM, mostly sunny in the afternoon, mostly clear Thursday night, then partly cloudy Friday and Friday night free air freezing level 11,000 ft. tonight, 10,000 ft. Wednesday, 9,000 ft. Wednesday night, 8,000 ft. Thursday, then 9,000 ft. Thursday night through Friday night lows 27-22 warming to 26 Friday night highs 40-43. A mix of clouds and sun Saturday, mostly cloudy with a slight (20%) chance of rain and snow showers Saturday night, a mix of clouds and sun with a slight (20%) chance of rain and snow showers Sunday, partly cloudy Sunday night, a mix of clouds and sun Monday, mostly cloudy with a slight (20%) chance of rain and snow showers Monday night, then a mix of clouds and sun with a slight (20%) chance of rain and snow showers Tuesday free air freezing level 7,000 ft. Saturday, snow level 4,000 ft. Saturday night, 3,500 ft. Sunday, free air freezing level 4,000 ft. Sunday night and Monday, then snow level 5,000 ft. Monday night and Tuesday highs 38-34 warming to 39 Monday lows near 23.
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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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