July 6, 2023
Note: Weather is a constantly changing phenomenon and weather forecasting is a combination of science, experience, and intuition. The accuracy of any given forecast can chance due to unexpected changes in atmospheric conditions, so there are no guarantees the the actual weather will conform to the projected forecast.
ADVISORIES
- NONE AT THIS TIME.
HEALTH ADVISORIES
- A RECREATIONAL USE HEALTH ADVISORY IS IN EFFECT FOR GALESVILLE RESERVOIR IN DOUGLAS COUNTY DUE TO THE PRESENCE OF A CYANOBACTERIA BLOOM. PEOPLE SHOULD AVOID SWIMMING AND HIGH SPEED WATER ACTIVITIES, SUCH AS WATER SKIING OR POWER BOATING, IN AREAS OF THE RESERVOIR WHERE BLOOMS ARE, AS THE MAJOR ROUTE OF EXPOSURE IS INGESTION OF WATER. TOXINS ARE NOT ABSORBED THROUGH THE SKIN, HOWEVER, THOSE WITH SKIN SENSITIVITIES MAY GET A PUFFY RED RASH. THE OREGON HEALTH AUTHORITY ENCOURAGES PEOPLE TO VISIT THE GALESVILLE RESERVOIR AND ENJOY ACTIVITIES SUCH AS FISHING, CAMPING, HIKING, BILKING, PICNICKING, BIRD WATCHING, CANOEING, AND KAYAKING. BOATING IS SAFE AS LONG AS SPEEDS DO NOT CREATE EXCESSIVE WATER SPRAY.. SPRAYS COULD LEAD TO THE RISK OF INHALING CYANOTOXINS.
- 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.
THE WEATHER PATTERN
- An Upper Level Low Pressure Trough (“U” shape offshore) will increase the cooler onshore airflow and even bring in southerly airflow which could produce mountain thunderstorms. Still no chance of getting the much needed rain for the Willamette Valley and Eastern Oregon. The graphics for days 1-3 show no frontal systems approaching the coast. The graphics for days 3-7 Sunday through Thursday show no fronts pushing into or through the Pacific Northwest during rest of the period.
- Note: Cooling relief from the record High Wednesday for Eugene at 99 degrees and for Roseburg at 98 degrees, but still well above normal temperatures.
Forecast For The South Willamette Valley Including Eugene-Springfield:
- Mostly clear with patchy fog late tonight,
- Some AM clouds and patchy fog, sunny and cooler Friday, clear in the evening, patchy fog late Friday night,
- AM clouds and sun, sunny and a bit warmer Saturday afternoon, clear with patchy fog late at night,
- Patchy AM fog, sunny and a bit warmer Sunday afternoon, then clear with patchy fog late Sunday night.
- lows 53-49 warming to 52 Sunday night highs 82-85.
- Some AM clouds with patchy fog, sunny and a bit cooler Monday afternoon, clear with patchy fog late Monday night,
- Patchy AM fog, sunny and a bit warmer Tuesday afternoon, clear with patchy fog late at night,
- Sunny and a bit warmer Wednesday, clear with patchy fog late Wednesday night,
- Then sunny and a bit warmer Thursday.
- highs 82-87 lows near 52. (seasonal averages high 82 low 51)
Forecast for the Umpqua Valley including Roseburg:
- Mostly clear tonight,
- Some AM clouds, sunny and a bit cooler Friday afternoon, mostly clear Friday night,
- AM clouds, sunny and a bit warmer Saturday afternoon, clear at night,
- Mostly sunny and a bit warmer Sunday, then mostly clear Sunday night.
- lows near 55 highs 84-87.
- Mostly sunny and a bit cooler Monday, mostly clear Monday night,
- Mostly sunny and a bit warmer Tuesday, mostly clear both nights,
- Then sunny and a bit warmer Wednesday and Thursday, clear Wednesday night.
- highs near 86-92 lows near 56. (seasonal averages high 84 low 56)
Forecast for the Oregon Coast including Coos Bay and North Bend:
- Mostly cloudy with patchy fog late tonight,
- AM clouds with patchy fog, sunny and a bit warmer Friday afternoon, partly cloudy in the evening, mostly cloudy with patchy fog late Friday night,
- Mostly cloudy start with patchy fog, sunny and a bit warmer Saturday afternoon, mostly clear in the evening, mostly cloudy with patchy fog late at night,
- Patchy AM and late night fog, partly cloudy and a bit warmer Sunday afternoon, then partly cloudy Sunday night.
- lows 54-50 warming to 52 Sunday night highs 67-69.
- Partly cloudy with patchy AM fog, partly cloudy and a bit warmer Monday afternoon, partly cloudy with patchy fog late Monday night,
- Some AM clouds with patchy fog, sunny Tuesday afternoon, mostly clear in the evening, partly cloudy with patchy fog late at night,
- Patchy AM and late night fog, mostly sunny Wednesday, mostly clear Wednesday night,
- Patchy AM fog, then sunny and a bit warmer Thursday.
- highs 70-72 lows near 52. (seasonal averages high 65 low 53)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Clear tonight,
- Mostly sunny and a bit cooler with a slight (20%) chance of thunderstorms Friday afternoon, mostly clear with a slight (20%) chance of evening showers and thunderstorms, just mostly clear late Friday night,
- Mostly sunny with a slight (20%) chance of showers and thunderstorms Saturday, mostly clear with a slight (20%) chance of evening showers, just mostly clear late at night,
- Sunny and a bit warmer with a slight (20%) chance of showers Sunday, then mostly clear Sunday night.
- free air freezing level 14,000 ft. tonight, snow level above 8,000 ft. Friday through Sunday night,
- lows 47-45 warming back to 47 Saturday night cooling back to 45 Sunday night highs 76-79.
- Sunny and a bit cooler Monday, clear Monday night,
- Sunny and a bit warmer Tuesday, clear at night,
- Sunny Wednesday, clear Wednesday night,
- Then sunny and a bit warmer Thursday.
- free air freezing level 13,000 ft. Monday, 14,000 ft. Monday night through Wednesday, then 15,000 ft, Wednesday night and Thursday.
- highs 73-76 lows 43-45.