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Here is my new 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 MIDNIGHT TONIGHT UNTIL 8 AM TUESDAY FOR THE SOUTH CENTRAL OREGON COAST. A FREEZE WATCH IS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH WEDNESDAY MORNING FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A FROST ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 8 AM TUESDAY 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 planted offshore and the airflow will keep us in the sunshine, as long as the fog clears. So, for all of the work week we’ll see 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 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: Partly cloudy with patchy fog this evening, cloudy with increasing areas of fog and freezing fog late tonight and early Tuesday AM, cloudy in the afternoon, cloudy with patchy evening fog, mostly cloudy with areas of fog late Tuesday night and Wednesday AM, a mix of clouds and sun in the afternoon, mostly cloudy with areas of fog again late Wednesday night and Thursday AM, partly cloudy in the afternoon and evening, then mostly cloudy with areas of fog late Thursday night lows 28-33 cooling to near 30 Thursday night highs 39-44 cooling to near 40 Thursday. AM clouds and patchy fog then a mix of clouds and sun Friday, mostly cloudy Friday night, a slight(20%) chance of showers Saturday, mostly cloudy Saturday night, a slight (20%) chance of showers Sunday, mostly cloudy Sunday night, then a mix of clouds and sun Monday highs 42-47 lows 32-35 cooling to near 30 Sunday night. (seasonal averages high 47 low 35)
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Forecast for the Umpqua Basin including Roseburg: Partly cloudy with patchy fog this evening, mostly cloudy with areas of freezing fog late tonight and Tuesday AM, partly cloudy in the afternoon, areas of evening fog, mostly cloudy with areas of freezing fog late Tuesday night and Wednesday AM, partly cloudy with patchy fog Wednesday night, mostly cloudy with patchy fog Thursday, partly cloudy in the afternoon and Thursday night with patchy fog and freezing fog late Thursday night lows 28-34 highs 42-40. Sunny with patchy fog Friday, mostly clear Friday night, partly cloudy Saturday, mostly cloudy Saturday night, mostly cloudy with a slight (20%) chance of showers Sunday, then just partly cloudy Sunday night and Monday highs 46-49 cooling to near 44 Sunday and Monday lows near 32. (seasonal averages high 48 low 37)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Clear with areas of frost late tonight and Tuesday AM, sunny Tuesday afternoon, mostly clear with patchy frost late Tuesday night and Wednesday AM, sunny in the afternoon, partly cloudy Wednesday night, then partly cloudy with patchy fog Thursday and Thursday night lows 30-35 highs near 48. Patchy fog and sunny Friday, partly cloudy Friday night, mostly cloudy Saturday through Sunday, then partly cloudy Sunday night and Monday highs 47-50 lows 34-38 falling to near 35 Tuesday night. (seasonal averages high 51 low 40).
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Forecast for the Cascades of Lane County: Clear tonight, mostly sunny Tuesday through Thursday with mostly clear nights free air freezing level 10,000 ft. tonight, 11,000 ft. Tuesday and Tuesday night, 10,000 ft. Wednesday, 8,000 ft. Wednesday night, then 7,500 ft. Thursday and Thursday night lows 23-28 cooling to near 24 Thursday night highs 45-37. Partly cloudy Friday and Friday night, a mix of clouds and sun Saturday, mostly cloudy Saturday night, a mix of clouds and sun with a slight (20%) chance of rain and snow showers Sunday, partly cloudy with a slight (20%) chance of snow showers Sunday night, then a mix of clouds and sun with a slight (20%) chance of snow showers Monday free air freezing level 7,500 ft. Friday, 7,000 ft. Friday night, 6,000 ft. Saturday, 5,000 ft. Saturday night, then snow level 3,500 ft. Saturday night through Monday highs 42-32 warming to 39 Monday lows 26-22.
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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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