Sep
06.
Here is my weekly weather quiz question. What is the “Spring Tide?”
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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 no frontal activity through the period until a cold front will be offshore Sunday. The graphics for days 3-7 Monday through Friday show a cold front moving through between Tuesday and Wednesday. A cold front will be well to our northwest next Friday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 86 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 141 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 74 in the Moderate category measuring Particulate Matter.
Data courtesy of Lane Regional Air Protection Agency (LRAPA.org)
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ADVISORIES:
- A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR THE MT. HOOD NATIONAL FOREST, THE NORTHERN WILLAMETTE NATIONAL FOREST, AND THE SOUTHERN WILLAMETTE NATIONAL FOREST.
- A RED FLAG WARNING IS IN EFFECT UNTIL 7 PM THIS EVENING FOR WIND AND LOW RELATIVE HUMIDITY FOR THE NORTHERN AND CENTRAL WILLAMETTE VALLEY.
- A RED FLAG WARNING IS IN EFFECT UNTIL 11 PM TONIGHT FOR WIND AND LOW RELATIVE HUMIDITY FOR THE WESTERN COLUMBIA RIVER GORGE IN OREGON.
- A RED FLAG WARNING IS IN EFFECT UNTIL 9 PM TONIGHT FOR DRY THUNDERSTORMS ON FUELS FOR THE UMPQUA NATIONAL FOREST, THE SOUTHERN OREGON CASCADES, 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 UNTIL 8 PM SATURDAY FOR DRY AND UNSTABLE CONDITIONS FOR THE MT. HOOD NATIONAL FOREST REGION.
- A RED FLAG WARNING IS IN EFFECT UNTIL MIDNIGHT TONIGHT 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 SATURDAY FOR HOT DRY AND UNSTABLE CONDITIONS FOR THE CENTRAL MOUNTAINS OF OREGON, AND THE SOUTHERN BLUE AND STRAWBERRY MOUNTAINS.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE LOWER COLUMBIA RIVER, TUALATIN VALLEY, PORTLAND WEST HILLS AND CHEHALEM MOUNTAIN, INNER PORTLAND METRO, EAST PORTLAND METRO, WEST CENTRAL WILLAMETTE VALLEY, EAST CENTRAL WILLAMETTE VALLEY, BENTON COUNTY LOWLANDS, LINN COUNTY LOWLANDS, LANE COUNTY LOWLANDS, WEST COLUMBIA RIVER GORGE OF OREGON ABOVE 500 FT., THE WEST COLUMBIA RIVER GORGE I-84 CORRIDOR, CLACKAMAS COUNTY CASCADE FOOTHILLS, THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES, AND THE LANE COUNTY CASCADE FOOTHILLS.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE UPPER HOOD RIVER VALLEY.
- AN EXCESSIVE HEAT WARNING IS IN EFFECT UNTIL 10 PM FRIDAY FOR THE NORTH OREGON CASCADES, THE CASCADES OF MARION AND LINN COUNTIES, AND THE CASCADES OF LANE COUNTY.
- A HEAT ADVISORY IS IN EFFECT FROM NOON TODAY UNTIL 10 PM TONIGHT FOR THE NORTH OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, THE NORTH OREGON COAST RANGE, AND THE CENTRAL OREGON COAST RANGE.
- A HEAT ADVISORY IS IN EFFECT UNTIL 9 PM SATURDAY FOR EASTERN COLUMBIA RIVER GORGE OF OREGON, THE LOWER COLUMBIA BASIN OF OREGON, THE GRANDE RONDE VALLEY, THE NORTHERN BLUE MOUNTAINS OF OREGON, THE JOHN DAY BASIN, THE FOOTHILLS OF THE NORTHERN BLUE MOUNTAINS OF OREGON, THE FOOTHILLS OF THE SOUTHERN BLUE MOUNTAINS OF OREGON, THE EAST SLOPES OF THE OREGON CASCADES, NORTH CENTRAL OREGON, AND CENTRAL OREGON.
- A HEAT ADVISORY IS IN EFFECT UNTIL 8 PM TONIGHT FOR THE SOUTHERN BLUE MOUNTAINS OF OREGON, THE OCHOCO, AND THE JOHN DAY HIGHLANDS.
- A HEAT ADVISORY IS IN EFFECT UNTIL 10 PM TONIGHT FOR THE SOUTH CENTRAL OREGON COAST, CENTRAL DOUGLAS COUNTY, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, AND JACKSON COUNTY.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 6 PM SUNDAY FOR THE NORTH OREGON CASCADES.
- AN AIR QUALITY ALERT IS IN EFFECT IS IN EFFECT UNTIL NOON MONDAY FOR JACKSON, KLAMATH AND LAKE COUNTIES.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 4 PM MONDAY FOR COOK, DESCHUTES, AND GRANT COUNTIES.
- AN AIR QUALITY ADVISORY IS IN EFFECT DUE TO WILDFIRE SMOKE UNTIL 2 PM FRIDAY 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.
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Forecast for the Southern and lower Mid Willamette Valley including Eugene-Springfield and Albany-Corvallis:
- Partly cloudy and hazy with a slight (20%) chance of evening thunderstorms, mostly cloudy and hazy late tonight,
- A mix of clouds and sun and hazy and a bit cooler Saturday, mostly cloudy with evening haze, partly cloudy late Saturday night,
- Patchy AM fog, sunny and a bit cooler Sunday, mostly clear at night,
- Mostly sunny and a bit cooler Monday, then partly cloudy Monday night.
- lows 59-53 highs 92-86.
- Mostly sunny and a bit cooler Tuesday, partly cloudy with a slight (20%) chance of showers Tuesday night,
- A mix of clouds and sun and a bit cooler with a (40%) chance of showers Wednesday, mostly cloudy with a (40%) chance of showers at night,
- Sunny and a bit warmer Thursday, mostly clear Thursday night,
- Then mostly sunny and a bit warmer Friday.
- highs 82-74 warming to 80 Friday lows 50-47 warming to 49 Thursday night. (seasonal averages high 81 low 49)
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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.
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Forecast for the Umpqua Valley including Roseburg:
- Partly cloudy and hazy with a slight (20%) chance of evening thunderstorms, mostly cloudy and hazy with patchy fog late tonight,
- Mostly cloudy and hazy with patchy AM fog and patchy smoke, partly cloudy and hazy and a bit cooler with patchy smoke Saturday afternoon, partly cloudy and hazy with patchy evening smoke, hazy with patchy fog and smoke late Saturday night,
- Some AM clouds with patchy fog, sunny and a bit cooler Sunday afternoon, mostly clear with patchy fog at night,
- Patchy AM fog, then partly cloudy Monday and Monday night.
- lows 62-57 highs 92-89.
- Partly cloudy and a bit cooler Tuesday, partly cloudy and cooler with a slight (20%) chance of showers late Tuesday night,
- Patchy A fog, mostly cloudy and a bit cooler with a (30%) chance of showers Wednesday, a slight (20%) evening showers, just mostly clear at night,
- Patchy AM fog, sunny and a bit warmer Thursday, mostly clear Thursday night,
- Patchy AM fog, then sunny and a bit warmer Friday afternoon.
- highs 82-74 warming back to 82 Friday lows 53-49 warming to 52 Thursday night. (seasonal averages high 83 low 54)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Partly cloudy and hazy with patchy coastal fog and a slight (20%) chance of evening coastal showers continuing tonight while mostly cloudy with patchy and hazy inland tonight,
- Mostly cloudy and hazy with patchy AM coastal fog while hazy with patchy AM fog and smoke, mostly cloudy and hazy and a bit warmer Saturday afternoon, mostly cloudy and hazy with patchy fog Saturday night,
- Mostly cloudy with patchy AM fog, sunny and a bit warmer Sunday afternoon, mostly clear in the evening, mostly cloudy with patchy fog late at night,
- Mostly cloudy with patchy AM and late night fog, then partly cloudy and a bit warmer Monday afternoon and Monday night.
- lows 57-58 cooling to 54 Monday night highs 72-75.
- Mostly cloudy with patchy AM and late night fog, partly cloudy and a bit cooler Tuesday afternoon, a slight (20%) chance of evening showers, mostly cloudy with a slight (20%) chance of showers late Tuesday night,
- Patchy AM and late night fog, mostly cloudy with a (40%) chance of showers Wednesday afternoon, mostly clear with a slight (20%) chance of evening showers, a slight (20%) chance of evening showers, mostly clear with patchy fog late at night,
- Patchy AM and late night fog, mostly sunny Thursday afternoon, mostly clear Thursday night,
- Some AM clouds with patchy fog, then sunny Friday afternoon.
- highs near 72 lows 52-50 warming back to 52 Thursday night. (seasonal average high 67 low 52)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly cloudy and hazy areas of smoke tonight (under 0.10 in. of rain possible),
- A mix of clouds and sun with haze and areas of smoke and a bit cooler with a slight (20%) chance of thunderstorms Saturday afternoon, mostly cloudy and hazy with areas of smoke and a slight (20%) chance of evening thunderstorms, partly cloudy and hazy with areas of smoke late Saturday night,
- Sunny and hazy with areas of AM smoke, sunny and a bit cooler Sunday, mostly clear at night,
- Mostly sunny and a bit cooler Monday, mostly cloudy in the evening, partly cloudy late Monday night,
- free air freezing level 15,000 ft. tonight, 14,000 ft. Saturday through Sunday, 14,000 ft. rising to 15,0o0 ft. Sunday night, then 14,000 ft. Monday and Monday night.
- lows 55-47 highs 82-75.
- Mostly sunny and a bit cooler Tuesday, mostly cloudy with a slight (20%) chance of showers Tuesday night,
- A mix of clouds and sun and a bit cooler with a (40%) chance of showers Wednesday, partly cloudy with a slight (20%) chance of showers Wednesday night,
- Sunny and a bit warmer Thursday, mostly clear Thursday night,
- Mostly sunny and a bit warmer Friday.
- free air freezing level 13,000 ft. Tuesday, snow level above 8,000 ft. Tuesday night, 7,500 ft. Wednesday, 8,000 ft. Wednesday night, free air freezing level 12,000 ft. Thursday, then 14,000 ft. Thursday night and Friday.
- highs 67-54 warming to 66 Friday lows 38-36 warming to 42 Thursday night.