Sep
07.
Here is my weekly weather quiz question for the last time. What is the “Spring Tide?” Here is the correct answer. A Spring Tide is a tide higher than normal which occurs around the time of the new and full moon.
____________
An Upper Level High Pressure Ridge (“Arch” shape) is still heating us up to well above normal temperatures. The graphics for days 1-3 show a frontal system pushing through the Pacific Northwest Monday. The graphics for days 3-7 Tuesday through Saturday show the cold front continue moving through the Pacific northwest Tuesday.
________________
Air Quality Index:
Eugene/Springfield: The Air Quality Index is 90 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 142 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 73 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
_______________
ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT UNTIL 8 PM TONIGHT FOR DRY AND UNSTABLE CONDITIONS FOR THE NORTHERN WILLAMETTE FOREST AND THE SOUTHERN WILLAMETTE FOREST.
- A RED FLAG WARNING IS IN EFFECT UNTIL 8 PM TONIGHT FOR DRY AND UNSTABLE CONDITIONS FOR THE MT. HOOD NATIONAL FOREST REGION.
- A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM TONIGHT FOR ABUNDANT LIGHTNING ON DRY FUELS FOR THE KLAMATH BASIN THE FREMONT-WINEMA NATIONAL FOREST, AND THE SOUTH CENTRAL OREGON DESERT INCLUDING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
- A RED FLAG WARNING IS IN EFFECT FOR ABUNDANT LIGHTNING FOR THE EAST SLOPES OF THE CENTRAL OREGON CASCADES, THE DESCHUTES NATIONAL FOREST, AND THE MINUS SISTERS RANGER DISTRICT.
- A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM TONIGHT FOR HOT DRY AND UNSTABLE CONDITIONS FOR THE CENTRAL MOUNTAINS OF OREGON.
- A RED FLAG WARNING IS IN EFFECT FOR ABUNDANT LIGHTNING FOR THE SOUTHERN BLUE AND STRAWBERRY MOUNTAINS.
- A FIRE WEATHER WATCH IS IN EFFECT FOR ABUNDANT LIGHTNING FOR THE NORTHERN BLUE MOUNTAINS OF OREGON, THE CENTRAL BLUE MOUNTAINS, AND THE WALLOWA DISTRICT.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 9 AM MONDAY FOR HARNEY AND MALHEUR COUNTIES.
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:
- Partly cloudy with evening haze, partly cloudy late tonight,
- Mostly sunny and a bit cooler Sunday with afternoon haze, mostly clear Sunday night,
- Mostly sunny and a bit cooler Monday, mostly cloudy at night,
- Mostly sunny and a bit cooler Tuesday, then mostly cloudy with a (40%) chance of showers Tuesday night.
- lows 57-52 highs 87-79.
- Mostly cloudy and a bit cooler with showers likely (70%) and a slight (20%) chance of thunderstorms Wednesday, mostly cloudy with a good (50%) chance of showers Wednesday night,
- Mostly sunny and a bit warmer with a (30%) chance of showers Thursday, mostly clear at night,
- Mostly sunny and a bit warmer Friday, partly cloudy Friday night,
- Then mostly sunny with a slight (20%) chance of showers Saturday.
- highs 68-75 lows 52-48. (seasonal averages high 81 low 49)
__________
Your Saturday College Football Weather Forecast:
Saturday September 7th:
Ducks vs Boise State Broncos at Autzen Stadium, Game time 7:00 pm- Weather forecast: Partly cloudy 82 degrees cooling to 69 degrees by the end of the game.
Beavers vs San Diego State Aztecs at Snapdragon Stadium, San Diego, California, Game time: 7:30 pm- Weather forecast: Partly cloudy 80 degrees cooling to 77 degrees by the the end of the game.
________________
Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy with evening smoke, becoming clear and hazy with patchy fog and smoke late tonight,
- Some AM clouds with patchy fog and smoke, sunny and hazy a bit cooler with patchy smoke Sunday afternoon, mostly clear with patchy evening smoke, hazy with patchy fog and smoke late Sunday night,
- Patchy AM fog, partly cloudy Monday and at night,
- Some AM clouds with patchy fog, sunny and a bit cooler Tuesday afternoon, then mostly cloudy and cooler with a (30%) chance of showers late Tuesday night.
- lows 62-54 highs 89-82.
- Patchy AM fog, mostly cloudy and cooler with showers likely (70%) Wednesday, mostly cloudy with a (40%) chance of showers at night and patchy fog late Wednesday night,
- Patchy AM fog, partly cloudy and a bit warmer with a slight (20%) chance of showers Thursday, mostly clear with patchy fog at night,
- Partly cloudy with patchy AM fog, sunny and a bit warmer Friday afternoon, partly cloudy Friday night,
- Patchy AM fog, then partly cloudy with a slight (20%) chance of showers Saturday afternoon.
- highs 72-78 lows 53-52. (seasonal averages high 83 low 54)
____________
Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy and hazy with patchy coastal fog late tonight while mostly cloudy and hazy with inland patchy fog tonight,
- AM clouds and hazy with patchy fog, sunny and a bit cooler and hazy Sunday afternoon, partly cloudy with evening haze evening, mostly cloudy and hazy with patchy fog late Sunday night,
- Mostly cloudy with patchy AM fog, partly cloudy and a bit warmer Monday afternoon, mostly cloudy with patchy fog late at night,
- Mostly cloudy with patchy AM and late night fog, partly cloudy and a bit cooler Tuesday afternoon, mostly cloudy with a good (50%) chance of showers at night and patchy fog late Tuesday night.
- lows 58-53 highs 65-67 cooling back to 65 Tuesday.
- Patchy AM and late night fog, mostly cloudy and a bit cooler with showers likely (70%) Wednesday afternoon, mostly cloudy with a (40%) chance of showers Wednesday night,
- Patchy AM and late night fog, partly cloudy and a bit warmer with a slight (20%) chance of showers Thursday afternoon, mostly clear in the evening, partly cloudy late at night,
- Patchy AM fog, partly cloudy and a bit warmer Friday afternoon and Friday night,
- Patchy AM fog, then partly cloudy with a slight (20%) chance of showers Saturday afternoon.
- highs 62-65 lows near 52. (seasonal average high 67 low 52)
__________
Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy and hazy with a slight (20%) chance of evening showers, partly cloudy and hazy with areas of smoke late tonight,
- Sunny and hazy with areas of smoke and a bit cooler Sunday, mostly clear and hazy Sunday night with areas of smoke late,
- Mostly sunny and hazy with areas of AM smoke, mostly sunny and a bit cooler and hazy Monday afternoon, mostly cloudy at night,
- Mostly sunny and a bit cooler Tuesday, then mostly cloudy with a good (50%) chance of showers Tuesday night.
- free air freezing level 14,000 ft. late tonight and Sunday, 14,000 ft. rising to 15,0o0 ft. Sunday night, 14,000 ft. Monday and Monday night, 13,000 ft. Tuesday, then snow level above 8,000 ft. Tuesday night,
- lows 52-42 highs 76-67.
- Mostly cloudy and cooler with showers likely (70%) Wednesday, mostly cloudy with a good (50%) chance of showers and a slight (20%) chance of thunderstorms Wednesday night,
- A mix of clouds and sun with a (40%) chance of showers Thursday, partly cloudy with a slight (20%) chance of showers at night,
- Mostly sunny and a bit warmer Friday, partly cloudy Friday night,
- Then mostly sunny with a slight (20%) chance of showers Saturday.
- snow level 8,000 ft. Wednesday, 7,500 ft. Wednesday night, 8,000 ft. Thursday, above 8,000 ft. Thursday night, free air freezing level 12,000 ft. Friday and Friday night, then snow level above 8,000 ft. Saturday.
- highs 52-62 lows 38-36 warming back to 38 Friday night.