* WHAT...A persistent inversion with light and variable winds will
lead to a period of stagnant air conditions. This scenario could
result in the build up of air pollutants near the surface over
time.
* WHERE...Foothills of the Northern and Central Oregon Cascades,
North and Central Coast Range Valleys of Oregon, Lower Columbia
River and Cowlitz River Valleys, Central Willamette Valley,
Tualatin Valley, Willapa and Wahkiakum Lowlands, North Clark
County Lowlands, and South Washington Cascade Foothills.
* WHEN...From 4 PM this afternoon to 4 PM PST Tuesday.
* IMPACTS...Deteriorating air quality may cause issues for people
with respiratory problems.
* WHAT...A persistent inversion with light and variable winds will
lead to a period of stagnant air conditions. This scenario could
result in the build up of air pollutants near the surface over
time.
* WHERE...Eastern Portland/Vancouver Metro, Portland West Hills and
Chehalem Mountain, Inner Portland Metro, and Inner Vancouver Metro.
* WHEN...From 4 PM this afternoon to 4 PM PST Monday.
* IMPACTS...Deteriorating air quality may cause issues for people
with respiratory problems.
* WHAT...For the Frost Advisory, temperatures as low as 33 will
result in frost formation. For the Freeze Watch, sub-freezing
temperatures as low as 30 possible.
* WHERE...South Central Oregon Coast. This includes the communities
of North Bend, Port Orford, Myrtle Point, Powers, Reedsport, and
Bandon.
* WHEN...For the Frost Advisory, from 2 AM to 9 AM PST Thursday. For
the Freeze Watch, from late Thursday night through Friday morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* WHAT...For the Frost Advisory, temperatures as low as 33 will
result in frost formation. For the Freeze Watch, sub-freezing
temperatures as low as 30 possible.
* WHERE...South Central Oregon Coast. This includes the communities
of North Bend, Port Orford, Myrtle Point, Powers, Reedsport, and
Bandon.
* WHEN...For the Frost Advisory, from 2 AM to 9 AM PST Thursday. For
the Freeze Watch, from late Thursday night through Friday morning.
* IMPACTS...Frost and freeze conditions could kill crops, other
sensitive vegetation and possibly damage unprotected outdoor
plumbing.
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...East Central Willamette Valley, Lane County Lowlands, and
Linn County Lowlands.
* WHEN...Until 11 AM PST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Visibility of one-quarter mile or less in dense fog.
* WHERE...Northern Blue Mountains of Oregon.
* WHEN...Until noon PST today.
* IMPACTS...Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Visibility near zero has been observed along
the slopes of the Northern Blues and along Interstate 84 in the
vicinity of Cabbage Hill and Deadman Pass where low clouds are
intersecting with the terrain.
* WHAT...Visibility down to a quarter of a mile or less.
* WHERE...Foothills of the Northern Blue Mountains of Oregon.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
Oregon Department of Transportation cameras along I-84 are showing
poor visibilities from Pendleton up to the top of Cabbage Hill
which is causing slow traffic.
* WHAT...Areas of fog, with visibility dropping to a quarter mile or
less in dense fog.
* WHERE...South Washington and North and Central Oregon Coast, North
and Central Coast Range Valleys of Oregon, Lower Columbia River
and Cowlitz River Valleys, Central Willamette Valley, Tualatin
Valley, Inner Portland Metro, Outer Southeast Portland Metro,
Willapa and Wahkiakum Lowlands, North Clark County Lowlands, and
Inner Vancouver Metro.
* WHEN...Until 11 AM PST Tuesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
Locally windy conditions have developed near the base of the Blue
Mountains this evening mainly at Cabbage Hill along Interstate 84.
Wind gusts 45 to 50 mph can be expected this evening before slowly
diminishing late tonight. Motorist are urged to use caution if
traveling on this portion of the interstate tonight.
* WHAT...Southeast winds 25 to 35 mph with gusts up to 45 mph.
* WHERE...The Rogue Valley in Jackson County including Medford and
Ashland.
* WHEN...Until 8 PM PST this evening.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* ADDITIONAL DETAILS...While fog remains in the Rogue Valley,
conditions are starting to visibly improve. The Dense Fog Advisory
is no longer needed.
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Wind Advisory, southeast winds 20 to 30
mph with gusts up to 45 mph.
* WHERE...The Rogue Valley in Jackson County including Medford and
Ashland.
* WHEN...For the Dense Fog Advisory, until 11 AM PST this morning.
For the Wind Advisory, until 8 PM PST this evening.
* IMPACTS...Low visibility could make driving conditions hazardous.
Gusty winds will blow around unsecured objects. Tree limbs could
be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Fog conditions look to improve as winds
develop this morning. But for the moment, clearing is not visible
on satellite imagery.
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Wind Advisory, southeast winds 20 to 30
mph with gusts up to 45 mph.
* WHERE...The Rogue Valley in Jackson County including Medford and
Ashland.
* WHEN...For the Dense Fog Advisory, until 11 AM PST this morning.
For the Wind Advisory, until 8 PM PST this evening.
* IMPACTS...Low visibility could make driving conditions hazardous.
Gusty winds will blow around unsecured objects. Tree limbs could
be blown down and a few power outages may result.
* ADDITIONAL DETAILS...Fog conditions look to improve as winds
develop this morning. But for the moment, clearing is not visible
on satellite imagery.
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Wind Advisory, southeast winds 25 to 35
mph with gusts up to 45 mph.
* WHERE...The Rogue Valley in Jackson County including Medford and
Ashland.
* WHEN...For the Dense Fog Advisory, until 10 AM PST this morning.
For the Wind Advisory, until 8 PM PST this evening.
* IMPACTS...Low visibility could make driving conditions hazardous.
Gusty winds will blow around unsecured objects. Tree limbs could
be blown down and a few power outages may result.
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Wind Advisory, southeast winds 25 to 35
mph with gusts up to 45 mph.
* WHERE...The Rogue Valley in Jackson County including Medford and
Ashland.
* WHEN...For the Dense Fog Advisory, until 10 AM PST this morning.
For the Wind Advisory, until 8 PM PST this evening.
* IMPACTS...Low visibility could make driving conditions hazardous.
Gusty winds will blow around unsecured objects. Tree limbs could
be blown down and a few power outages may result.
...The Flood Watch is extended for the following rivers in Oregon...
Coquille River at Coquille affecting South Central Oregon Coast
zone.
* WHAT...Flooding is possible.
* WHERE...Coquille River at Coquille.
* WHEN...Until early Sunday morning.
* IMPACTS...At 20.0 feet, Expect some slight pasture flooding in
low-lying areas along and near the Coquille River. Cattle and
other farm animals which graze on the floodplain may be impacted.
* ADDITIONAL DETAILS...
- At 9:45 PM PST Friday the stage was 20.3 feet.
- Forecast...Flood stage may be reached based on the latest
forecast information. Current forecasts show the river rising
to around 20.8 feet by Saturday morning just below flood
stage, then slowly falling to around 20 feet by Saturday
evening.
- Flood stage is 21.0 feet.
- http://www.weather.gov/safety/flood
...The National Weather Service in Medford OR has issued a Flood
Watch for the following rivers in Oregon...
Coquille River at Coquille affecting South Central Oregon Coast
zone.
* WHAT...Flooding is possible.
* WHERE...Coquille River at Coquille.
* WHEN...From this evening to Saturday afternoon.
* IMPACTS...At 20.0 feet, Expect some slight pasture flooding in
low-lying areas along and near the Coquille River. Cattle and
other farm animals which graze on the floodplain may be impacted.
* ADDITIONAL DETAILS...
- At 4:45 PM PST Friday the stage was 19.5 feet.
- Forecast...Flood stage may be reached based on the latest
forecast information. Current forecasts show the river rising
to around 20.7 feet by Saturday morning just below flood
stage, then slowly falling to around 20 feet by Saturday
evening.
- Flood stage is 21.0 feet.
- http://www.weather.gov/safety/flood
* WHAT...Urban and small stream flooding caused by excessive
rainfall is expected.
* WHERE...A portion of southwest Oregon, including the following
counties, Coos, Curry and Josephine.
* WHEN...Until 1000 AM PST Saturday.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Water over roadways. Overflowing poor drainage areas. River or
stream flows are elevated. Ponding of water in urban or other
areas is occurring or is imminent.
* ADDITIONAL DETAILS...
- At 502 PM PST, Doppler radar, weather spotters and automated
rain gauges indicated heavy rain between 5 and 10 inches has
fallen in these areas over the past few days. Urban and small
stream flooding and overflowing poor drainage areas will
continue to cause minor flooding in the advisory area.
- Additional rainfall amounts of 1 to 2 inches are expected
over the area tonight into Saturday morning. This additional
rain will result in minor flooding.
- Some locations that will experience flooding include...
Brookings, Cave Junction, Port Orford, Bandon, Powers,
Agness, Bear Camp Viewpoint, Briggs Creek Recreation Site,
Ophir, Sam Brown Campground, Spalding Pond Campground, Alfred
A. Loeb State Park, Sixes River Campground, Humbug Mountain
State Park, Galice, Selma, Highway 199 Hayes Hill Summit,
Kerby, Harbor and Edson Creek Campground.
- http://www.weather.gov/safety/flood
* WHAT...South winds 25 to 35 mph with gusts up to 60 mph for
beaches and headlands.
* WHERE...Clatsop County and Tillamook County Coast, and South
Washington Coast.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.
* WHAT...South winds 25 to 35 mph with gusts up to 60 mph for
beaches and headlands.
* WHERE...Clatsop County and Tillamook County Coast, and South
Washington Coast.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.