________________
Here is my weekly weather quiz question. This is your last chance to win this week. Please define “Limnology.” Hint: it can be a deep subject. 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!
________________
Cold high pressure (shaded “Arch” shape with blue arrows) is moving through the the Pacific Northwest. That ridge aloft along with high pressure (Blue “H” off the coast) at the surface will keep storm systems away from the Pacific Northwest until Tuesday. Watch out for slippery roadways late night and early AM due to fog freezing on the surface of the road. The first frontal system in quite some time will be moving into the Pacific Northwest next Wednesday bringing back the chance for rain.
________________
Advisories: AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 6 PM TUESDAY FOR THE NORTH, CENTRAL AND SOUTHERN WILLAMETTE VALLEY. A FROST ADVISORY IS IN EFFECT FROM 2 AM UNTIL 10 AM SATURDAY FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. AN AIR STAGNATION ADVISORY IS IN EFFECT UNTIL 10 AM TUESDAY FOR CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY, JOSEPHINE COUNTY, THE EASTERN DOUGLAS COUNTY FOOTHILLS, THE KLAMATH BASIN, JACKSON COUNTY, NORTHERN AND EASTERN KLAMATH COUNTY, WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
________________
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Low clouds and patchy fog this evening, areas of fog and freezing fog late tonight and Saturday AM, cloudy with lingering fog in the afternoon and evening, cloudy with patchy fog and freezing fog late Saturday night and Sunday AM, cloudy in the afternoon, patchy fog and freezing fog late Sunday night and Monday AM, mostly cloudy in the afternoon, then partly cloudy Monday night lows near 30 highs 37-40. A mix of clouds and sun Tuesday, mostly cloudy with a good (50%) chance of rain Tuesday night, a good (50%) chance of rain Wednesday, mostly cloudy with a (30%) chance of showers Wednesday night and Thursday, a slight (20%) chance of rain Thursday night, then mostly cloudy with a (30%) chance of rain Friday highs 40-49 lows near 34. (seasonal averages high 48 low 34)
_______________
Forecast for the Umpqua Basin including Roseburg: Mostly clear with patchy freezing fog this evening, partly cloudy with patchy freezing fog again late tonight and Saturday AM, partly cloudy Saturday afternoon, partly cloudy with areas of fog and freezing fog again late Saturday night and Sunday AM, partly cloudy in the afternoon, mostly clear in the evening, partly cloudy with patchy fog Sunday night and Monday AM, partly cloudy Monday afternoon (Martin Luther King, Jr. Day), then partly cloudy with patchy fog Monday night lows 30-32 highs 42-45. Mostly cloudy with patchy fog Tuesday AM, partly cloudy in the afternoon, mostly cloudy with a slight (20%) chance of rain Tuesday night, mostly cloudy with a (30%) chance of showers Wednesday and Wednesday evening, a slight (20%) of rain and snow showers late Wednesday night, mostly cloudy with a slight (20%) chance of AM rain and snow showers, a slight (20%) chance of showers Thursday afternoon, then mostly cloudy with a slight (20%) chance of rain Thursday night and Friday highs 49-45 warming to 50 Friday lows 38-36. (seasonal averages high 50 low 37)
_________________
Forecast for the South Oregon Coast including Coos Bay and North Bend: Clear this evening, mostly cloudy with patchy coastal fog late tonight and Saturday AM while patchy fog and freezing fog inland late at night and early Saturday AM, partly cloudy in the afternoon and evening, mostly cloudy with patchy fog late Saturday night and Sunday AM, mostly sunny in the afternoon, mostly clear Sunday night, partly cloudy in the AM, sunny Monday afternoon (Martin Luther King, Jr. Day), mostly clear in the evening, partly cloudy with patchy fog late Monday night lows 35-40 highs 55-57. Patchy AM fog, mostly cloudy Tuesday afternoon, rain, a (40%) chance of rain Tuesday night, cloudy with a (40%) chance of showers Wednesday, a a slight (20%) chance of showers Wednesday night, mostly cloudy with a slight (20%) chance of showers Thursday, then mostly cloudy with a slight (20%) chance of rain Thursday night and Friday highs 58-48 warming to 50 Friday lows 42-39. (seasonal averages high 52 low 40)
_______________
Forecast for the Cascades of Lane County: Mostly clear tonight, mostly sunny Saturday, mostly clear Saturday night, mostly sunny Sunday, mostly clear at night, mostly sunny Monday (Martin Luther King, Jr. Day), then partly cloudy Monday night free air freezing level 11,000 ft. tonight and Saturday, 12,000 ft. Saturday night through Monday night lows near 30 highs 45-48. Partly cloudy Tuesday, mostly cloudy with a good (50%) chance of rain Tuesday night, a good (50%) chance of rain or snow Wednesday, a (30%) chance of showers Wednesday night and Thursday, then mostly cloudy with a (30%) chance of rain or snow Thursday night and Friday free air freezing level 12,000 ft. Monday, 11,000 ft. Monday night, 11,000 ft. Tuesday, snow level snow level above 8,000 ft. Tuesday night, 4,000 ft. Wednesday, 2,500 ft. Wednesday night, 3,500 ft. Thursday, then 4,500 ft. Thursday night and Friday highs 48-33 warming to 39 Friday lows 24-20 warming to 25 Thursday night.
________________
**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.
________________
Get your local Eugene-Springfield news on-line at Eugene Daily News.com.
________________