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Check out my latest Eugene Daily News Weather Or Not Column Watch Out! It Might Be A Warning.
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Here is my weekly weather quiz question. If a weather bulletin is issued by the National Weather Service stating that “a tornado is moving NW at 20 mph (toward your location) take shelter immediately” what constitutes shelter and is there a safe place to hide from a tornado? 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: THE RED FLAG WARNINGS THAT HAVE BEEN IN EFFECT WILL EXPIRE AT 11 PM TONIGHT FOR THE FOLLOWING: ALONG THE NORTH OREGON CASCADES, THE CENTRAL OREGON CASCADES, AND THE DESCHUTES NATIONAL FOREST, THE SOUTH CASCADES, AND THE KLAMATH BASIN. AND THE SOUTH CENTRAL SISKIYOUS MOUNTAINS. THE WARNINGS WERE ISSUED DUE TO LOW RELATIVE HUMIDITIES AND THE THREAT OF DRY THUNDERSTORMS PRODUCING LIGHTNING CAPABLE OF STARTING MORE WILDFIRES.
There is a Blue-Green Algae warning that continues for Dexter Reservoir and Dorena Reservoir has just been added to the list. Water monitoring has confirmed the presence of blue-green algae that can produce toxins, state public health officials said. The algae levels are likely associated with dangerous cyanotoxin concentrations in the water that can be harmful to humans and animals. Swallowing or inhaling water droplets, as well as skin contact with water, should be avoided according to the authorities.
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An upper level low (shaded “U” shape with blue arrows) is sliding through northern California and Oregon bringing a chance of showers and isolated, mainly dry, thunderstorms over the mountains. The big problem with that is the development of dry thunderstorms, particularly over the mountains and foothills, that can produce more wildfires through lightning strikes. We’ll get a break from that thunderstorm chance as that upper low pulls away from us, but another low (“U” shape with blue arrows) will once again slide in along the northern California coast.
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The Grass Pollen Count is listed as Moderate at 8 and Tree pollen is Low at 3 as of 7/26/13 and both have risen a bit according to Oregon Allergy Associates.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis: Mostly cloudy with a slight (20%) chance of drizzle late tonight, cloudy with a slight (20%) chance of AM drizzle, a mix of clouds and sun Friday afternoon, partly cloudy in the evening, mostly cloudy at night, cloudy Saturday AM, partly cloudy in the afternoon and Saturday night, a mix of clouds and sun Sunday AM, mostly sunny in the afternoon, then partly cloudy Sunday night lows 54-52 warming to 54 Sunday night highs 75-87. Partly cloudy Monday AM, mostly sunny in the afternoon, mostly clear at night, mostly sunny Tuesday, then partly cloudy Tuesday night through Thursday highs near 87 lows near 53. (seasonal averages high 84 low 52)
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Forecast for the Umpqua Basin including Roseburg: Mostly cloudy with areas of smoke tonight, cloudy Friday AM, sunny in the afternoon with areas of smoke, partly cloudy with areas of smoke again throughout the day and evening, mostly cloudy at night, partly cloudy with areas of smoke Saturday, mostly clear in the evening, then partly cloudy with areas of smoke Saturday night through Sunday night lows 55-52 warming to 56 Sunday night highs 780-90. Partly cloudy with areas of smoke Monday through Wednesday night, partly cloudy Thursday AM, then sunny Thursday afternoon highs near 88 lows 54-58. (seasonal averages high 86 low 57)
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Forecast for the South Oregon Coast including Coos Bay and North Bend: Mostly cloudy with areas of smoke inland and patchy coastal fog late tonight and Friday AM, partly cloudy in the afternoon and evening with areas of inland smoke, mostly cloudy with areas of inland smoke again Friday night, AM clouds, partly cloudy with areas of smoke inland Saturday and Saturday night, mostly cloudy with areas of smoke in the AM, partly cloudy in the afternoon, then mostly cloudy Sunday night lows 55-50 highs 62-65. Mostly cloudy Monday, then partly cloudy Monday night through Thursday highs near 65 lows 52-58 (seasonal averages high 65 low 53)
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Forecast for the Cascades of Lane County: Mostly cloudy with a slight (20%) chance of drizzle tonight and Friday AM, a mix of clouds and sun in the afternoon, partly cloudy Friday night and Saturday AM, mostly sunny in the afternoon, partly cloudy Saturday night and Sunday AM, mostly sunny in the afternoon, then partly cloudy Sunday night free air freezing level 11,000 ft. tonight, 12,000 ft. Friday through Saturday, 12,000 ft. rising to 13,000 ft. Saturday night, then 13,000 ft. Sunday and Sunday night lows 43-50 highs 62-76. Mostly sunny Monday AM, partly cloudy with a slight (20%) chance of thunderstorms in the afternoon and evening, partly cloudy late Monday night, mostly sunny with a (20%) chance of thunderstorms Tuesday afternoon, partly cloudy with a slight (20%) chance of thunderstorms in the evening, just partly cloudy Tuesday night through Wednesday night, then partly cloudy with a slight (20%) chance of thunderstorms Thursday afternoon free air freezing level 13,000 ft. Sunday through Tuesday night, 13,000 ft. rising to 14,000 ft. Wednesday, 14,000 ft. falling to 13,000 ft. at night, then 13,000 ft. rising to 14,000 ft. Thursday highs near 76 lows near 50.
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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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