Here is my weekly weather quiz question for the last time. What is the “Solar Wind?” Here is the correct answer. Solar Wind is the outward flux of solar particles and magnetic fields from the sun. Typically, solar wind velocities are near 350 km/s.
____________
An Upper Level High Pressure Ridge continues the warming. The graphics for days 1-3 show no frontal systems sliding through Oregon through the period until a cold front slides in on Sunday. The graphics for days 3-7 Tuesday through Saturday show no frontal systems pushing into the Pacific Northwest through next Friday with a cold front to our northwest next Saturday.
ADVISORIES:
- A HEAT ADVISORY IS IN EFFECT FROM 5 AM UNTIL 11 PM TODAY FOR THE OCHOCO, THE JOHN DAY HIGHLANDS, AND THE EAST SLOPES OF THE OREGON CASCADES.
- A HEAT ADVISORY IS IN EFFECT FROM 11 AM TODAY UNTIL 9 PM SUNDAY FOR THE EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, THE GRANDE RONDE VALLEY, THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, NORTH CENTRAL OREGON, AND CENTRAL OREGON.
- A HEAT ADVISORY IS IN EFFECT FROM 5 AM UNTIL 9 PM SUNDAY FOR THE SOUTHERN BLUE MOUNTAINS OF OREGON.
- A DENSE FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR THE CENTRAL COAST OF OREGON.
- A DENSE FOG ADVISORY IS IN EFFECT UNTIL NOON TODAY FOR CLATSOP COUNTY AND TILLAMOOK COUNTY.
HEALTH ADVISORIES:
- A PERMANENT HEALTH ADVISORY REMAINS IN EFFECT FOR THE SOUTH UMPQUA RIVER BAR. POOLS IN THE BEDROCK ALONG THE RIVERS EDGE ARE KNOWN TO DEVELOP BLUE-GREEN ALGAE (CYANOBACTERIAL) BLOOMS THAT CAN BE HARMFUL TO PETS AND PEOPLE IF ACCIDENTAL INGESTION OCCURS. SIGNS HAVE BEEN POSTED ALONG SEVERAL ACCESS AREAS ALONG THE RIVER.
Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Sunny today, mostly clear tonight,
- Mostly sunny and a bit cooler Sunday, partly cloudy with patchy fog late at night,
- Mostly sunny and a bit cooler Monday (Labor Day), then partly cloudy Monday night.
- highs 96-79 lows 56-53.
- Sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
- Sunny and a bit warmer Thursday, mostly clear Thursday night,
- Then sunny and a bit cooler Friday.
- highs 84-93 cooling to 87 Friday lows 52-56. (seasonal averages high 82 low 50)
________________
Your Saturday College Football Weather Forecast:
Today August 31st:
Ducks vs Idaho Vandals at Autzen Stadium, Game time 4:30 pm- Preliminary Weather Forecast: Sunny 93 degrees cooling to 75 by the end of the game.
Beavers vs Idaho State Bengals at Reser Stadium, Game time: 3:30 pm- Preliminary Weather Forecast: Sunny 87 degrees warming to 94 degrees and cooling to 75 by the end of the game.
Forecast for the Umpqua Valley including Roseburg:
- Sunny and a bit cooler today, mostly clear tonight,
- Some AM clouds, sunny and a bit cooler Sunday afternoon, mostly clear at night,
- Some AM clouds, sunny and cooler Monday afternoon (Labor Day), then mostly clear Monday night.
- highs 97-82 lows 60-57.
- Mostly sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
- Mostly sunny Thursday, mostly clear Thursday night,
- Then mostly sunny and a bit cooler Friday.
- highs 86-95 cooling to 89 Friday lows 57-60 cooling to 58 Thursday night. (seasonal averages high 84 low 55)
____________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Some AM clouds and patchy coastal fog, sunny and a bit cooler this afternoon, partly cloudy this evening, mostly cloudy with patchy coastal fog late tonight,
- Mostly cloudy start with areas of AM coastal fog while inland patchy AM inland fog, partly cloudy Sunday afternoon and evening, mostly cloudy with patchy fog and a slight (20%) chance of coastal rain late Sunday night while a slight (20%) chance of inland rain with areas of inland fog late Sunday night,
- Mostly cloudy with areas of AM fog and a slight (20%) chance of rain, partly cloudy and a bit cooler with a slight (20%) chance of rain Monday afternoon (Labor Day), partly cloudy in the evening then mostly cloudy Monday night.
- highs 64-63 warming to 66 Monday lows 54-56.
- Mostly sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night, partly cloudy Thursday night,
- Mostly sunny and a bit cooler Thursday, partly cloudy Thursday night,
- Then partly cloudy and a bit cooler Friday.
- highs 70-73 cooling to 67 Friday lows near 56. (seasonal average high 68 low 53)
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Sunny and a bit warmer today, mostly clear this evening, partly cloudy late tonight,
- Mostly sunny and a bit cooler with a slight (20%) chance of showers Sunday afternoon, partly cloudy at night,
- Mostly sunny and cooler with a slight (20%) chance of showers Monday (Labor Day), then partly cloudy with a slight (20%) chance of showers Monday night.
- free air freezing level 15,000 ft. today and tonight, then snow level above 8,000 ft. Sunday through Monday night.
- highs 84-68 lows 55-44.
- Sunny and a bit warmer Tuesday, mostly clear Tuesday night,
- Sunny and cooler Wednesday, mostly clear Wednesday night,
- Sunny and warmer Thursday, mostly clear in the evening, partly cloudy late Thursday night,
- Then sunny and a bit cooler Friday.
- free air freezing level 14,000 ft. Tuesday, 15,000 ft. Tuesday night, 16,000 ft. Wednesday and Wednesday night, then 15,000 ft. Thursday through Friday.
- highs 72-80 cooling to 74 Friday lows 50-53 cooling back to 50 Thursday night.