Sep
05.
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 Saturday. The graphics for days 3-7 Monday through Friday show a cold front moving through between Wednesday and next Thursday. A cold front will be offshore next Friday.
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Air Quality Index:
Eugene/Springfield: The Air Quality Index is 94 in the Moderate category measuring Particulate Matter.
Oakridge: The Air Quality Index is 113 in the Unhealthy for Sensitive Groups category measuring Particulate Matter.
Cottage Grove: The Air Quality Index is 99 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 FOREST, AND THE SOUTHERN WILLAMETTE 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 FROM 1 PM UNTIL 9 PM FRIDAY FOR DRY THUNDERSTORMS ON FUELS FOR THE UMPQUA NATIONAL FOREST, THE SOUTHEERN OREGON CASCADES, THE KLAMATH BASIN, THE FREMONT-WINEMA NATIONAL FOREST, AND THE SOUTH CENTRAL OREGON DESER INCLUNING THE BLM LAND IN EASTERN LAKE AND WESTERN HARNEY COUNTIES.
- A FIRE WEATHER WATCH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH SATURDAY EVENING 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 FRIDAY 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 FRIDAY 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 FRIDAY 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 FRIDAY FOR THE SOUTHERN BLUE MOUNTAINS OF OREGON, THE OCHOCO, AND THE JOHN DAY HIGHLANDS.
- A HEAT ADVISORY IS IN EFFECT UNTIL 10 PM FRIDAY 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 8 PM FRIDAY FOR CLACKAMAS, MARION, MULTNOMAH, POLK, WASHINGTON, AND YAMHIL COUNTIES.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 8 PM FRIDAY FOR TUALATIN VALLEY, PORTLAND WEST HILLS AND CEHALEM MOUNTAIN, INNER PORTLAND METRO, OUTER SOUTHEAST PORTLAND, EAST PORTLAND METRO, OUTER SOUTHEAST PORTLAND METRO, WEST CENTRAL WILLAMETTE VALLEY, AND EAST CENTRAL WILLAMETTE VALLEY.
- AN AIR QUALITY ALERT IS IN EFFECT IS IN EFFECT UNTIL 5 PM FRIDAY FOR JACKSON, KLAMATH AND LAKE COUNTIES.
- AN AIR QUALITY ADVISORY IS IN EFFECT UNTIL 2 PM FRIDAY 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:
- Mostly sunny and hazy and slightly cooler with a slight (20%) chance of showers this afternoon, 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, partly cloudy at night,
- Sunny and a bit cooler Sunday, mostly clear Sunday night.
- highs 95-87 lows 59-54.
- Mostly sunny Monday, partly cloudy Monday night,
- A mix of clouds and sun and a bit cooler Tuesday, mostly cloudy with a (40%) chance of showers at 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 Wednesday night,
- Then a mix of clouds and sun and a bit warmer with a (30%) chance of showers Thursday.
- highs 87-73 warming to 75 Thursday lows 54-52. (seasonal averages high 81 low 50)
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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 84 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:
- Sunny and hazy with patchy AM smoke, partly cloudy and hazy with patchy smoke a bit cooler (still very warm) this afternoon and evening with a slight (20%) chance of thunderstorms, haze any patchy smoke late tonight,
- Patchy AM fog, partly cloudy and a bit cooler Saturday afternoon, partly cloudy in the evening, mostly clear with patchy fog late at night,
- Patchy AM and late night fog, mostly sunny and a bit cooler Sunday, then partly cloudy Sunday night.
- highs 98-89 lows 62-57.
- Patchy AM and late night fog, partly cloudy Monday, partly cloudy Monday night,
- Patchy AM and late night fog, partly cloudy and a bit cooler Tuesday, mostly cloudy with a (30%) chance of showers at night,
- Patchy A fog, mostly cloudy and a bit cooler with a (40%) chance of showers Wednesday, a (40%) chance of showers Wednesday night,
- Patchy AM fog, partly cloudy and a bit cooler with a slight (20%) chance of showers Thursday.
- highs 89-77 lows 57-54. (seasonal averages high 83 low 54)
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Forecast for The South Oregon Coast Including Coos Bay and North Bend:
- Mostly cloudy with AM coastal haze and fog with partly cloudy and hazy with a slight (20%) chance of thunderstorms and a bit cooler this afternoon while partly cloudy and hazy and a bit cooler inland today, partly cloudy with a slight (20%) chance of evening coastal thunderstorms and mostly cloudy and hazy with patchy fog and a slight (20%) chance of coastal showers late tonight while patchy and hazy with patchy inland fog late tonight,
- Patchy AM fog, mostly cloudy and a bit cooler Saturday, mostly cloudy with patchy fog at night,
- Mostly cloudy with patchy AM fog, sunny and a bit warmer Sunday afternoon, then mostly cloudy with patchy fog Sunday night.
- highs 72-65 lows 58-55.
- Mostly cloudy with patchy AM and late night fog, mostly cloudy and a bit warmer Monday afternoon, mostly cloudy Monday night,
- Mostly cloudy with patchy AM and late night fog, mostly cloudy and a bit cooler Tuesday afternoon, patchy fog and a slight (20%) chance of showers at night,
- Patchy AM and late night fog, mostly cloudy and a bit cooler with a slight (20%) chance of showers Wednesday and Wednesday night,
- Patchy AM fog, then partly cloudy and a bit warmer with a slight (20%) chance of showers Thursday afternoon.
- highs 65-64 lows near 55. (seasonal average high 67 low 53)
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Forecast for the Northern Oregon Cascades including the Cascades in Lane County:
- Mostly sunny and hazy and a bit warmer with areas of smoke with a chance of showers and a slight (20%) chance of thunderstorms this afternoon, mostly cloudy with a (30%) chance of showers and a slight (20%) chance of thunderstorms this evening, hazy with areas of smoke and a slight (20%) chance of rain late tonight (under 0.10 in. of rain possible),
- A mix of clouds and sun with haze and areas of smoke and a bit cooler Saturday, partly cloudy Saturday night,
- Sunny and a bit cooler Sunday, then mostly clear at night.
- free air freezing level 15,000 ft. this afternoon, 15,000 ft. tonight, 15,000 ft. falling to 14,000 ft. Saturday, then 14,000 ft. Saturday night through Sunday night.
- highs 85-76 lows 56-50.
- Mostly sunny Monday, partly cloudy Monday night,
- Mostly sunny and a bit cooler Tuesday, mostly cloudy with a (40%) chance of showers at night,
- A mix of clouds and sun and a bit cooler with a good (50%) chance of showers Wednesday, mostly cloudy with a good (50%) chance of showers Wednesday night,
- Then a mix of clouds and sun and a bit warmer with a (30%) chance of showers Thursday.
- free air freezing level 14,000 ft. Monday and Monday night, 13,000 ft. Tuesday, then snow level above 8,000 ft. Tuesday through Thursday.
- highs 76-55 warming to 59 Thursday lows 47-38.