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Here is my new weekly weather quiz question. In times of active weather the “Mesonet” comes in handy. What is it? 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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An Upper Level Low Pressure Trough
An upper level low pressure trough (Shaded “U” shape) has pushed through the Pacific Northwest and is now centered over the Southwest. A frontal system (now in the Southwest) pushed southward through Oregon. Another storm (in blue) is moving through now. Yet another frontal system will slide toward us Friday (position shown is Saturday ) increasing the rain chances. See the pattern here of frontal systems (this one shown on Monday) that will march through the Pacific Northwest.
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Advisories: A WINTER STORM WATCH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH LATE FRIDAY NIGHT FOR THE COAST RANGE OF NORTHWEST OREGON, THE CENTRAL COAST RANGE OF OREGON, THE NORTH OREGON CASCADE FOOTHILLS, THE CASCADE FOOTHILLS IN LANE COUNTY, THE NORTH OREGON CASCADES, AND THE CASCADES OF LANE COUNTY.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with rain tonight (0.10 in. of rain possible), Thursday (0.10 in. of rain possible), and Thursday night (0.10 in. of rain possible), rain (0.15 in. of rain possible) and breezy (wind: S 15-25 mph) Friday (0.20 in. of rain possible), mostly cloudy with rain in the evening, showers late Friday night (0.35 in. of rain possible) and breezy (wind: SW 15-25 mph shifting W 10-15 mph late), mostly cloudy with showers Saturday, then a (40%) chance of rain showers Saturday night lows near 36 highs 47-49 cooling to 45 Saturday. Mostly cloudy with a good (50%) chance of showers Sunday, rain likely (60%) Sunday night and Monday, a good (50%) chance of showers Monday night, cloudy with good (50%) chance of rain Tuesday, then mostly cloudy with a good (50%) chance of rain Tuesday night and Wednesday highs 48-44 warming to near 50 Wednesday lows near 36. (seasonal averages high 52 low 35)
Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with rain this evening, rain and snow late tonight (under 0.10 in. of rain possible, snow level 3,000 ft. falling to 2,500 ft.), AM rain and snow showers likely (70%), rain and snow showers Thursday afternoon (under 0.10 in. of rain possible, 1 in. of snow possible, snow level 2,000 ft. rising to 2,500 ft.), rain and snow likely (70%) in the evening, rain likely (70%) late Thursday night (under 0.10 in. of rain possible) and Friday AM (AM snow level 3,000 ft.), rain in the afternoon (0.10 in. of rain possible) and evening, rain and snow late Friday night (0.30 in. of rain possible), rain and snow showers Saturday, then mostly cloudy with a (40%) chance of rain and snow showers Saturday night lows 37-40 cooling to 33 Saturday night highs 50-46. Mostly cloudy with a (30%) chance of rain and snow showers Sunday AM, a (40%) chance of afternoon showers, rain likely (60%) Sunday night and Monday AM, rain and snow likely (60%) in the afternoon, a good (50%) chance of rain and snow showers Monday night, a (40%) chance of rain and snow showers Tuesday AM, then a good (50%) chance of rain and snow Tuesday afternoon through Wednesday highs 54-48 warming to 52 Tuesday and Wednesday lows near 37. (seasonal averages high 54 low 37)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with rain tonight (0.10 in. of rain possible), coastal showers likely (60%) Thursday AM and showers in the afternoon while AM showers likely (70%) inland (0.10 in. of rain possible, AM snow level 2,000 ft.), coastal evening rain with rain likely (70%) late while rain likely (60%) inland Thursday night (0.10 in. of rain possible), rain Friday (0.30 in. of rain possible), rain Friday night (0.50 in. of rain possible, snow level 2,000 ft.m late), showers Saturday, then mostly cloudy with a good (50%) chance of showers Saturday night lows 39-42 cooling to 35 Saturday night highs 47-50 cooling to 45 Saturday. Mostly cloudy with a good (50%) chance of showers Sunday, rain likely (60%) Sunday night and Monday, a good (50%) chance of showers Monday night and Tuesday AM, then mostly cloudy with a god (50%) chance of rain Tuesday afternoon through Wednesday highs 50-46 warming to 52 Wednesday lows 38-42. (seasonal averages high 53 low 40)
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Forecast for the Cascades of Lane County: Mostly cloudy with snow tonight (0.10 in. of rain possible, 1-2 in. of snow possible), AM rain and snow likely (70%), snow Thursday afternoon (0.25 in. of rain possible, 1-3 in. of snow possible), snow in the evening, rain and snow late Thursday night (0.25 in. of rain possible, 1-4 in. of snow possible), rain and snow Friday and breezy (wind: SW 5-15 mph then SW 15-25 mph gusts to 40 mph), rain and snow in the evening, snow showers late Friday night and windy (wind: W 20-30 mph gusts to 45 mph in the evening), snow showers Saturday, then mostly cloudy with a (40%) chance of snow showers Saturday night snow level at the surface tonight and Thursday, 2,500 ft. Thursday night, 2,500 ft. rising to 4,500 ft. Friday, 4,000 ft. Friday evening, then at the surface Saturday and Saturday night lows 22-25 cooling to 18 Saturday night highs 32-36 cooling to 28 Saturday. Mostly cloudy with a good (50%) chance of snow showers Sunday, a good (50%) chance of snow Sunday night, snow likely (70%) Monday, a good (50%) chance of snow showers Monday night, a good (50%) chance of snow Tuesday, rain and snow likely (60%) at night, then mostly cloudy with a good (50%) chance of rain and snow Wednesday snow level at the surface Sunday, 2,500 ft. Sunday night and Monday, at the surface Monday night and Tuesday, then 3,000 ft. Tuesday night and Wednesday highs 23-32 cooling to 25 Monday and warming back to 32 Tuesday lows 23-20 warming to 25 Tuesday night.
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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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