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Here is my new weekly weather quiz question. What does “ECMWF” stand for? Hint: it represents a very necessary weapon in the meteorologist’s weather forecasting arsenal. 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.
An upper level high pressure ridge (shaded “Arch”shape) has moved eastward so an upper level low (shaded “U” shape) can take over bringing back the rain. A complex complex frontal system has returned the stream of moisture and colder air pouring into Oregon and dropping snow levels below the passes bringing the “Spring Rain.” Spring officially began with the “Vernal Equinox” at 4:02 AM today.
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Advisories: A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 11 AM THURSDAY FOR THE NORTH OREGON CASCADES, NOT INCLUDING THE CASCADES IN LANE COUNTY. A WIND ADVISORY IS IN EFFECT UNTIL 8 PM THIS EVENING FOR THE KLAMATH BASIN. A HIGH WIND WARNING IS IN EFFECT UNTIL 8 PM THIS EVENING FOR NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with showers likely (60%) with a slight (20%) chance of thunderstorms this evening and small hail possible, showers likely (70%) and colder late tonight (under 0.10 in. of rain possible), mostly cloudy with a good (50%) chance of showers Thursday (0.10 in. of rain possible), a (40%) chance of showers at night (under 0.10 in. of rain possible), a mix of clouds and sun with a slight (20%) chance of showers Friday (under 0.10 in. of rain possible), just mostly cloudy Friday night, a mix of clouds and sun with a slight (20%) chance of rain Saturday, then mostly cloudy with a slight (20%) chance of rain Saturday night lows 34-32 warming to 35 Saturday night highs 48-52. A mix of clouds and sun with a slight (20%) chance of showers Sunday, partly cloudy with a slight (20%) chance of showers at night, a mix of clouds and sun Monday, mostly cloudy at night, mostly cloudy with a (30%) chance of showers Tuesday, a (40%) chance of showers Tuesday night, then mostly cloudy with a good (50%) chance of showers Wednesday highs 53-60 cooling to 56 Wednesday lows 36-42. (seasonal averages high 57 low 38)
Forecast for the Umpqua Basin including Roseburg: Cloudy with rain and snow showers this evening, scattered rain and snow showers and colder tonight (0.10 in. of rain possible, 1 in. of snow possible, snow level 2,500 ft. falling to 1,500 ft. late), mostly cloudy with a (40%) chance of scattered rain and snow showers Thursday afternoon and evening (under 0.10 in. of rain possible, snow level 1,500 ft. rising to 2,000 ft.), mostly cloudy with a (30%) chance of rain and snow showers Thursday night (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of rain and snow showers Friday (under 0.10 in. of rain possible, snow level 2,000 ft), a slight (20%) chance of rain and snow showers in the evening (snow level 2,000 ft.), just mostly cloudy late Friday night and Saturday, then partly cloudy Saturday night lows 37-32 warming to 36 Wednesday night highs 50-55. Mostly cloudy Sunday through Monday night, then mostly cloudy with a (30%) chance of showers Tuesday and Tuesday night, then a good (50%) chance of showers Wednesday highs 55-65 cooling to near 60 Wednesday lows 34-44. (seasonal averages high 58 low 40)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Cloudy with scattered coastal showers tonight while inland evening showers, scattered showers late at night (0.10 in. of rain possible, snow level 2,000 ft.), mostly cloudy with a (40%) chance of scattered showers Thursday (under 0.10 in. of rain possible, snow level 2,000 ft.), scattered evening showers with a slight (20%) chance of showers inland late at night while a (30%) chance of isolated coastal showers Thursday night (under 0.10 in of rain possible, snow level 2,000 ft. late at night), mostly cloudy with a slight (20%) chance of showers Friday (under 0.10 in. of rain possible), mostly cloudy with a slight (20%) chance of evening coastal showers and a slight (20%) chance of evening rain and snow showers inland, mostly cloudy late Friday night, mostly cloudy Saturday, then partly cloudy Saturday night lows 38-34 warming to 36 Saturday night highs 47-50. Mostly cloudy with a slight (20%) chance of showers Sunday and Sunday night, just mostly cloudy Monday, a slight (20%) chance of showers at night, mostly cloudy with a (30%) chance of showers Tuesday and Tuesday night, then a good (50%) chance of showers Wednesday highs 40-58 cooling to 54 Wednesday lows 39-45. (seasonal averages high 54 low 42)
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Forecast for the Cascades of Lane County: Mostly cloudy with evening rain and snow showers, snow showers late tonight (0.25 in. of rain possible, 2-4 in. of snow possible) and colder tonight, mostly cloudy with a good (50%) chance of snow showers Thursday and Thursday night, a mix of clouds and sun with a slight (20%) chance of snow showers Friday, mostly cloudy with a slight chance of snow showers Friday night, then mostly cloudy with a slight (20%) chance of rain and snow Saturday and Saturday night snow level at the surface tonight through Friday night, then 3,000 ft. Saturday and Saturday night lows near 20 warming to 27 Saturday highs 30-36. 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 rain and snow showers at night, just partly cloudy Monday, mostly cloudy Monday night, mostly cloudy with a (30%) chance of rain and snow showers Tuesday, a (40%) chance of showers Tuesday night, then mostly cloudy with a good (50%) chance of showers Wednesday snow level 4,000 ft. Sunday and Sunday night, free air freezing level 5,000 ft. Monday, 6,500 ft. at night, snow level 5,500 ft. Tuesday, 6,000 ft. at night, then 5,500 ft. Wednesday highs 38-46 lows 26-32 cooling to 29 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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