Here is my weekly weather quiz question for the last time. “What is “Relative Humidity?” Here is the correct answer. Relative Humidity is a dimensionless ratio, expressed in percent, of the amount of atmospheric moisture present relative to the amount that would be present if the air were saturated. Since the latter amount is dependent on temperature, relative humidity is a function of both moisture content and temperature. As such, relative humidity by itself does not directly indicate the actual amount of atmospheric moisture present. See dew point.

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ADVISORIES:

• NONE AT THIS TIME

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 South Oregon Coast Including Coos Bay and North Bend:

• Mostly clear this evening, becoming mostly cloudy late tonight,
• AM clouds, sunny and a bit warmer Sunday afternoon (Mother’s Day), partly cloudy late Sunday night,
• Some AM clouds, sunny Monday afternoon, partly cloudy late at night,
• Mostly sunny and a bit warmer Tuesday, then mostly clear Tuesday night.
• lows 48-46 warming back to 48 Tuesday night highs 63-64.
• Mostly sunny and a bit warmer Wednesday, mostly clear Wednesday night,
• Mostly sunny and a bit cooler Thursday and Friday, mostly clear both nights,
• Then mostly sunny and a bit warmer Saturday.
• highs 66-62 warming to warming to 64 Saturday lows 47-44. (seasonal average high 60 low 47)

Here is my weekly weather quiz question for the last time. “What is “Relative Humidity?” Here is the correct answer. Relative Humidity is a dimensionless ratio, expressed in percent, of the amount of atmospheric moisture present relative to the amount that would be present if the air were saturated. Since the latter amount is dependent on temperature, relative humidity is a function of both moisture content and temperature. As such, relative humidity by itself does not directly indicate the actual amount of atmospheric moisture present. See dew point.

____________

ADVISORIES:

• NONE AT THIS TIME

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 South Oregon Coast Including Coos Bay and North Bend:

• Sunny and cooler today, clear this evening, mostly cloudy late tonight,
• AM clouds, sunny and a bit cooler Sunday afternoon (Mother’s Day), mostly clear in the evening, mostly cloudy late at night,
• Some AM clouds, sunny Monday afternoon, mostly clear in the evening, then partly cloudy late Monday night.
• highs 69-63 lows 48-45.
• Mostly sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
• Then mostly sunny Thursday and Friday, mostly clear Thursday night.
• highs 63-67 cooling to 65 Friday lows near 47. (seasonal average high 60 low 47)

Here is my weekly weather quiz question. “What is “Relative Humidity?”

____________

ADVISORIES:

• NONE AT THIS TIME

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 South Oregon Coast Including Coos Bay and North Bend:

• Clear tonight,
• Sunny and cooler Saturday, clear in the evening, mostly cloudy late Saturday night,
• AM clouds, sunny and a bit cooler Sunday afternoon (Mother’s Day), mostly clear in the evening, mostly cloudy late at night,
• Some AM clouds, sunny Monday afternoon, mostly clear in the evening, then partly cloudy late Monday night.
• lows 50-45 highs 69-63.
• Mostly sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
• Then mostly sunny Thursday and Friday, mostly clear Thursday night.
• highs 63-67 cooling to 65 Friday lows near 47. (seasonal average high 60 low 47)

Here is my weekly weather quiz question. “What is “Relative Humidity?”

____________

ADVISORIES:

• NONE AT THIS TIME

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 South Oregon Coast Including Coos Bay and North Bend

• Sunny and warmer today, clear tonight,
• Cloudy with AM coastal showers and  sunny and cooler Saturday afternoon while sunny inland Saturday, becoming cloud at the shore at night while clear inland at night,
• Some AM clouds, sunny and a bit cooler Sunday afternoon (Mother’s Day), then partly cloudy Sunday night.
• highs 80-63 lows 50-48.
• Partly cloudy Monday, partly cloudy Monday night,
• Then mostly sunny and a bit warmer Tuesday, Wednesday, and Thursday, mostly clear each night,
• highs 63-67 lows 46-48. (seasonal average high 60 low 47)

Here is my weekly weather quiz question. “What is “Relative Humidity?”

____________

ADVISORIES:

• NONE AT THIS TIME

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 South Oregon Coast Including Coos Bay and North Bend:

• Clear tonight,
• Sunny and warmer Friday, clear Friday night,
• Cloudy with AM coastal showers and  sunny and cooler Saturday afternoon while sunny inland Saturday, becoming cloud at the shore at night while clear inland at night,
• Some AM clouds, sunny and a bit cooler Sunday afternoon (Mother’s Day), then partly cloudy Sunday night.
• lows 53-48 highs 80-63.
• Partly cloudy Monday, partly cloudy Monday night,
• Then mostly sunny and a bit warmer Tuesday, Wednesday, and Thursday, mostly clear each night,
• highs 63-67 lows 46-48. (seasonal average high 60 low 47)

        Here is my weekly weather quiz question. “What is “Relative Humidity?”

____________

ADVISORIES:

• NONE AT THIS TIME

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 South Oregon Coast Including Coos Bay and North Bend:

• Sunny and warmer today and Friday, clear both nights,
• Mostly sunny and cooler Saturday, then mostly clear Saturday night.
• highs 75-80 lows 53-46.
• Partly cloudy and a bit cooler Sunday (Mother’s Day), partly cloudy Sunday night,
• Partly cloudy and a bit cooler Monday and at night,
• Then mostly sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
• Then mostly sunny and a bit warmer Wednesday.
• highs 63-66 lows 48-46 warming back to 48 Tuesday night. (seasonal average high 60 low 47)

Here is my weekly weather quiz question. “What is “Relative Humidity?”

____________

ADVISORIES:

• NONE AT THIS TIME

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 South Oregon Coast Including Coos Bay and North Bend:

• Mostly clear tonight,
• Sunny and warmer Thursday and Friday, clear both nights,
• Mostly sunny and cooler Saturday, then mostly clear Saturday night
• lows 44-53 cooling to 46 Saturday night highs 75-80.
• Partly cloudy and a bit cooler Sunday (Mother’s Day), partly cloudy Sunday night,
• Partly cloudy and a bit cooler Monday and at night,
• Then mostly sunny and a bit warmer Tuesday and Wednesday, mostly clear both nights,
• Then mostly sunny and a bit warmer Wednesday.
• highs 63-66 lows 48-46 warming back to 48 Tuesday night. (seasonal average high 60 low 47)

Here is my weekly weather quiz question. “What is “Relative Humidity?”

____________

ADVISORIES:

• A FROST ADVISORY IS IN EFFECT UNTIL 8 AM TODAY FOR THE NORTH OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, THE TUALATIN VALLEY, THE WEST CENTRAL WILLAMETTE VALLEY, THE EAST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, THE LANE COUNTY LOWLANDS, THE UPPER HOOD RIVER VALLEY, THE CLACKAMAS COUNTY CASCADE FOOTHILLS, THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES, AND THE LANE COUNTY CASCADE FOOTHILLS.
• A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 10 AM TODAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY AND JACKSON COUNTY.

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 South Oregon Coast Including Coos Bay and North Bend:

• Inland patchy AM frost, sunny and a bit warmer this afternoon, mostly clear tonight,
• Sunny and warmer Thursday, clear Thursday night.,
• Sunny and a bit warmer Friday, then clear Friday night.
• lows 38-53 cooling to 49 Friday night highs 62-79.
• Mostly sunny and cooler Saturday, mostly clear Saturday night,
• Mostly sunny and a bit cooler Sunday afternoon (Mother’s Day), mostly clear at night,
• Mostly sunny Monday, mostly clear Monday night,
• Then mostly sunny and a bit warmer Tuesday.
• highs 69-63 warming to 65 Tuesday lows 49-46. (seasonal average high 60 low 47)

Here is my weekly weather quiz question. “What is “Relative Humidity?”

____________

ADVISORIES:

• A FROST ADVISORY IS IN EFFECT FROM MIDNIGHT TONIGHT UNTIL 8 AM WEDNESDAY FOR THE NORTH OREGON COAST RANGE LOWLANDS, THE CENTRAL OREGON COAST RANGE LOWLANDS, THE TUALATIN VALLEY, THE WEST CENTRAL WILLAMETTE VALLEY, THE EAST CENTRAL WILLAMETTE VALLEY, THE BENTON COUNTY LOWLANDS, THE LINN COUNTY LOWLANDS, THE LANE COUNTY LOWLANDS, THE UPPER HOOD RIVER VALLEY, THE CLACKAMAS COUNTY CASCADE FOOTHILLS, THE CASCADE FOOTHILLS OF MARION AND LINN COUNTIES, AND THE LANE COUNTY CASCADE FOOTHILLS.
• A FREEZE WARNING IS IN EFFECT FROM 2 AM UNTIL 10 AM WEDNESDAY FOR EASTERN CURRY COUNTY AND JOSEPHINE COUNTY AND JACKSON COUNTY.

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 South Oregon Coast Including Coos Bay and North Bend:

• Mostly clear tonight,
• Inland patchy AM frost, sunny and a bit warmer Wednesday, mostly clear Wednesday night,
• Sunny and warmer Thursday, clear Thursday night.,
• Sunny and a bit warmer Friday, then clear Friday night.
• lows 38-53 cooling to 49 Friday night highs 62-79.
• Mostly sunny and cooler Saturday, mostly clear Saturday night,
• Mostly sunny and a bit cooler Sunday afternoon (Mother’s Day), mostly clear at night,
• Mostly sunny Monday, mostly clear Monday night,
• Then mostly sunny and a bit warmer Tuesday.
• highs 69-63 warming to 65 Tuesday lows 49-46. (seasonal average high 59 low 47)

Here is my weekly weather quiz question. “What is “Relative Humidity?”

____________

ADVISORIES:

• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 5 AM TODAY ABOVE 4,500 FT. FOR THE NORTHERN BLUE MOUNTAINS OF OREGON.
• A WINTER WEATHER ADVISORY IS IN EFFECT UNTIL 5 AM TODAY ABOVE 4,500 FT. FOR THE EAST SLOPES OF THE OREGON CASCADES

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 South Oregon Coast Including Coos Bay and North Bend:

• Mostly cloudy and a bit warmer today, becoming mostly clear tonight,
• Sunny and a bit warmer Wednesday, clear at night,
• Sunny and warmer Thursday, then clear Thursday night.
• highs 57-72 lows 39-53.
• Sunny and as bit warmer Friday, clear Friday night,
• Mostly sunny and cooler Saturday, mostly clear at night,
• Some AM clouds, sunny and a bit cooler Sunday afternoon (Mother’s Day), partly cloudy Sunday night,
• Then partly cloudy Monday.
• highs 77-62 lows 50-48 warming back to 50 Sunday night. (seasonal average high 59 low 47)