July 3, 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
- A HEAT ADVISORY IS IN EFFECT UNTIL 11 PM WEDNESDAY FOR THE CURRY COUNTY COAST, EASTERN CURRY COUNTY AND JOSEPHINE COUNTY, JACKSON COUNTY, THE SOUTH CENTRAL OREGON CASCADES, THE KLAMATH BASIN, NORTHERN AND EASTERN KLAMATH COUNTY, AND WESTERN, CENTRAL, AND EASTERN LAKE COUNTY.
- A HEAT ADVISORY IS IN EFFECT 10 AM TUESDAY UNTIL 11 PM WEDNESDAY FOR NORTHERN OREGON CASCADE FOOTHILLS AND THE CASCADE FOOTHILLS IN LANE COUNTY.
- A HEAT ADVISORY IS IN EFFECT FROM 10 AM TUESDAY UNTIL 11 PM WEDNESDAY FOR THE GREATER PORTLAND METRO AREA AND THE CENTRAL WILLAMETTE VALLEY.
- A HEAT ADVISORY IS IN EFFECT FROM 10 AM TUESDAY UNTIL 7 PM WEDNESDAY FOR THE THE COAST RANGE OF NORTHWEST OREGON AND THE CENTRAL COAST RANGE OF OF WESTERN OREGON.
- A HEAT ADVISORY IS IN EFFECT FROM 10 AM TUESD
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 High Pressure Ridge (“Arch” shape) strengthens bringing much warmer air to the Pacific Northwest. No chance of the much needed rain. The graphics for days 1-3 show no frontal systems approaching the coast. The graphics for days 3-7 Thursday through Monday show no fronts pushing into or through the Pacific Northwest during rest of the period.
- Note: Be prepared for temperatures from the upper 90s to 100 degrees for July 4th and 5th. Drink plenty of water and stay as cool as possible.
Forecast For The South Willamette Valley Including Eugene-Springfield:
- Sunny and warm today, clear tonight,
- Sunny and Hot Tuesday (Independence Day), clear at night,
- Sunny and Hot Wednesday, then clear Wednesday night.
- highs 88-97 lows 55-58 cooling to 55 Wednesday night.
- Mostly sunny and cooler Thursday, mostly clear Thursday night,
- Some AM clouds, sunny and a bit cooler Friday, mostly clear at night,
- Some AM clouds, mostly sunny and a bit cooler Saturday afternoon, mostly clear Saturday night,
- Then mostly sunny and a bit warmer Sunday.
- highs 87-83 warming to 85 Sunday lows 54-52. (seasonal averages high 80 low 50)
Forecast for the Umpqua Valley including Roseburg:
- Sunny and a bit warmer today, clear tonight,
- Sunny and warmer, Hot, Tuesday (Independence Day), clear at night,
- Sunny and Hot Wednesday, then clear Wednesday night.
- highs 92-101 cooling to 98 Wednesday lows 57-62 cooling to 58 Wednesday night.
- Sunny and cooler Thursday, mostly clear Thursday night,
- Mostly sunny and a bit cooler Friday, mostly clear at night,
- Mostly sunny Saturday, mostly clear Saturday night,
- Then sunny and a bit warmer Sunday.
- highs 89-85 warming to 87 Sunday lows near 57. (seasonal averages high 83 low 56)
Forecast for the Oregon Coast including Coos Bay and North Bend:
- Sunny and warmer today, mostly clear tonight,
- Mostly sunny and a bit warmer Tuesday (Independence Day), mostly clear at night,
- Partly cloudy and a bit cooler Wednesday, then partly cloudy Wednesday night.
- highs 72-76 cooling back to 72 Wednesday lows 50-54.
- Partly cloudy and a bit cooler Thursday and in the evening, mostly cloudy late Thursday night,
- Mostly cloudy start, partly cloudy and a bit cooler Friday afternoon and evening, mostly cloudy late at night,
- Partly cloudy Saturday and Saturday night,
- Then partly cloudy and a bit warmer Sunday.
- highs 68-70 lows near 53. (seasonal averages high 65 low 53)
Forecast for the Northern Oregon Cascades including Willamette Pass:
- Sunny today, clear tonight,
- Sunny and a bit warmer Tuesday (Independence Day), clear at night,
- Sunny and a bit warmer Wednesday, then clear Wednesday night.
- free air freezing level 15,000 ft. falling to 14,000 ft. this afternoon, 14,000 ft. rising to 15,000 ft. late tonight, 15,000 ft. Tuesday and Tuesday night, then 14,000 ft. Wednesday and Wednesday night.
- highs 76-84 lows near 48 .
- Sunny and a bit cooler Thursday, mostly clear Thursday night,
- Mostly sunny and a bit cooler Friday and Saturday, mostly clear both nights,
- Then sunny Sunday.
- free air freezing level 14,000 ft. Thursday and Thursday night, then 13,000 ft. Friday through Sunday.
- highs 79-75 lows near 48.