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It’s Monday. Time for a new weekly weather question. Here it is. Why is it dangerous to drive your car on to a flooded street? Please post your answer as a comment by clicking on “no 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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A Reminder: The Vernal Equinox occurs at 4:21 PM Pacific Daylight Time next Sunday March 20th.

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The jet stream shows another cold trough of low pressure ( “U” shaped area) swinging in toward the Pacific Northwest. A frontal system moved through Oregon Saturday and a stronger one rumbled in Sunday bringing strong winds and a lot of rain. There is another frontal system that will push in tonight and Tuesday (It is offshore off the edge of this map). It looks like more storms will be aiming for us like this frontal system coming in late next week.

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Advisories:   A HIGH SURF ADVISORY IS IN EFFECT THROUGH 8 PM TONIGHT FOR THE NORTH AND CENTRAL OREGON COAST. A HIGH SURF ADVISORY IS IN EFFECT UNTIL 8 PM TONIGHT FOR THE SOUTH CENTRAL AND SOUTH OREGON COAST. A HIGH WIND WARNING IS IN EFFECT FROM 11 PM TONIGHT THROUGH 8 AM TUESDAY  NEAR THE BEACHES AND HEADLANDS FOR THE NORTH AND CENTRAL OREGON COAST. A WIND ADVISORY IS IN EFFECT FROM 2 AM TUESDAY THROUGH 2 AM WEDNESDAY FOR NORTHERN AND EASTERN KLAMATH COUNTY AND CENTRAL, EASTERN, AND WESTERN LAKE COUNTY. A WINTER WEATHER ADVISORY IS IN EFFECT FROM 8 AM TUESDAY THROUGH NOON WEDNESDAY FOR THE NORTH OREGON CASCADES AND THE CASCADES OF LANE COUNTY.

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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 increasing rain tonight (0.25 in. of rain possible) and breezy (wind: S 10-20 mph increasing to S 15-30 mph late tonight), mostly cloudy with AM showers Tuesday, afternoon showers with a (30%) chance of thunderstorms into the evening (0.50 in. of rain possible, heavier amounts in thunderstorms), and breezy (wind: S 15-30 mph), showers late Tuesday night (0.50 in. of rain possible, heavier amounts in thunderstorms), AM showers Wednesday, then showers and a (30%) chance of thunderstorms in the afternoon and evening, showers likely (60%) late Wednesday night, then showers likely (60%) Thursday and Thursday night lows 45-34 highs 55-50. Mostly cloudy with rain likely (60%) Friday, a good (50%) chance of showers Friday night through Saturday night, then a good (50%) chance of rain Sunday through Monday highs near 55 lows near 40. (seasonal  averages high 56 low 37)

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Forecast for the Umpqua Basin including, Roseburg:  Mostly cloudy with a (50%) chance of rain this evening, rain likely (60%) late tonight, AM rain at times Tuesday, rain with isolated thunderstorms Tuesday afternoon and evening, rain late Tuesday night (snow level 3,000 ft.) and breezy (wind: SW 15-25 mph shifting S 10-15 mph late ), showers Wednesday (snow level 3,000 ft. falling to 2,500 ft.), showers likely (60%) Wednesday night (snow level 3,000 ft.), showers likely (60%) Thursday AM, rain and snow showers likely (60%) Thursday afternoon, then rain likely (60%) Thursday night lows 48-38 highs 58-55. Mostly cloudy with rain Friday, then a good (50%) chance of showers Friday night through Monday  highs near 54 lows near 38. (seasonal averages high 59 low 38)

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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with coastal rain likely (60%) this evening, a good (50%) chance of rain inland this evening, rain late tonight and windy at the beaches (wind: S 25-35 mph and S 10-20 mph increasing to S 20-25 mph inland late), AM rain Tuesday, rain with isolated afternoon and evening thunderstorms and windy (wind: S 25-35 mph shifting to SW 20-25 mph at the beaches and SW 20-25 mph inland), rain late Tuesday night and breezy (wind: SW 15-25 mph gusts to 40 mph early evening), showers Wednesday, showers likely (60%) Wednesday night and Thursday, then rain likely (60%) Thursday night lows 45-40 highs 54-49. Mostly cloudy with rain likely (60%) Friday, then mostly cloudy with a (50%) chance of showers Friday night, showers likely (60%) Saturday, then a good (50%) chance of showers Saturday night through Monday highs near 52 lows near 42. (seasonal averages high 55 low 41).

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Forecast for the Cascades of Lane County:  Mostly cloudy with rain and snow likely (60%) this evening, rain late tonight (1-4 in. of snow possible), rain and snow Tuesday AM, rain and snow showers in the afternoon (5-10 in. of snow possible) and breezy (wind: SW 15-25 mph gusts to 35 mph higher elevations), snow showers Tuesday night (5-10 in. of snow possible), snow showers Wednesday (3-7 in. of snow possible), rain and snow showers likely (60%) Wednesday evening, then snow showers late Wednesday night, snow showers likely (60%) Thursday, and rain and snow showers likely (60%) Thursday night snow level 4,500 ft. rising to 5,500 ft. tonight, 4,500 ft. falling to 3,500 ft. Tuesday afternoon, 2,500 ft. Tuesday night, at the surface Wednesday and Wednesday night, 2,500 ft. Thursday, and 3,000 ft. Thursday night lows 30-26 highs 39-36. Mostly cloudy with snow showers likely (60%) Friday, showers likely (60%) with a good (50%) chance of snow showers Friday night, partly cloudy with a good (50%) chance of rain and snow showers Saturday, mostly cloudy with a good (50%) chance of snow showers Saturday night, then mostly cloudy with a good (50%) chance of snow Sunday through Monday snow level 3,000 ft. Friday, 3,500 ft. Friday night, 4,000 ft. Saturday, 3,000 ft. Saturday night, 2,500 ft. Sunday, 4,000 ft. Sunday night, and 3,000 ft. Monday highs near 40 lows near 28.

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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.