* WHAT...For the Dense Fog Advisory, visibility has improved, but
patches of dense fog in the Treasure Valley will continue this
morning. For the Air Stagnation Advisory, an extended period of
stagnant air, with light winds and little vertical mixing. This is
due to an inversion near the surface that will continue to trap
pollutants.
* WHERE...Treasure Valley Zones.
* WHEN...Until 2 PM MST Thursday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Southeast winds 20 to 25 mph with gusts up to 45 mph
expected.
* WHERE...Southern portions of the Rogue Valley south of Medford.
This includes Interstate 5 from Phoenix to Ashland.
* WHEN...From 7 PM this evening to 4 AM PST Thursday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...A moderate risk of sneaker waves is expected.
* WHERE...The beaches and shorelines of Curry, Coos, and Douglas
counties.
* WHEN...Through Wednesday morning.
* IMPACTS...Sneaker waves can run up significantly farther on
beaches than normal, including over rocks and jetties. These
waves can suddenly knock people off of their feet and quickly
pull them into the cold ocean waters, resulting in serious
injury or death. Waves may also lift driftwood logs, trapping
anyone caught underneath.
* View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...South Willamette Valley.
* WHEN...Until 9 AM PST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Areas of lowest visibility along I-5 and to
the west. Dense fog is patchy and can form quickly.
* WHAT...Visibility one quarter to one half mile in freezing fog.
* WHERE...Foothills of the Blue Mountains of Oregon, and North
Central Oregon.
* WHEN...Until noon PST today.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Mixed precipitation expected. Ice accumulations around a
glaze to one tenth of an inch.
* WHERE...Foothills of the Blue Mountains of Oregon.
* WHEN...From 10 PM this evening to noon PST Thursday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Even light ice can cause
dangerous driving conditions due to slippery roads. The hazardous
conditions could impact the Thursday morning commute.
* WHAT...For the Air Stagnation Advisory, an extended period of
stagnant air, with light winds and little vertical mixing. This is
due to an inversion near the surface that will continue to trap
pollutants. For the Dense Fog Advisory, visibility one quarter
mile or less in dense fog.
* WHERE...Portions of southwest and west central Idaho and southeast
Oregon.
* WHEN...For the Air Stagnation Advisory, until 2 PM MST Thursday.
For the Dense Fog Advisory, until noon MST today.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
* ADDITIONAL DETAILS...Snow flurries are possible through the
morning commute making for slick road conditions.
* WHAT...An extended period of stagnant air, with light winds and
little vertical mixing. This is due to an inversion near the
surface that will continue to trap pollutants.
* WHERE...Portions of southwest and west central Idaho and northeast
and southeast Oregon.
* WHEN...Until 2 PM MST /1 PM PST/ Thursday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...For the Air Stagnation Advisory, an extended period of
stagnant air, with light winds and little vertical mixing. This is
due to an inversion near the surface that will continue to trap
pollutants. For the Dense Fog Advisory, visibility one quarter
mile or less in dense fog.
* WHERE...Portions of southwest and west central Idaho and southeast
Oregon.
* WHEN...For the Air Stagnation Advisory, until 2 PM MST Thursday.
For the Dense Fog Advisory, until noon MST today.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
* ADDITIONAL DETAILS...Snow flurries are possible through the
morning commute making for slick road conditions.
* WHAT...Visibility one quarter to one half mile in freezing fog.
* WHERE...Foothills of the Blue Mountains of Oregon and Washington,
North Central Oregon, Kittitas Valley, and Simcoe Highlands.
* WHEN...Until noon PST Wednesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Visibility one quarter to one half mile in freezing fog.
* WHERE...Foothills of the Blue Mountains of Oregon and Washington,
North Central Oregon, Kittitas Valley, and Simcoe Highlands.
* WHEN...Until noon PST Wednesday.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...An extended period of stagnant air, with light winds and
little vertical mixing. This is due to an inversion near the
surface that will continue to trap pollutants.
* WHERE...Portions of southwest and west central Idaho and northeast
and southeast Oregon.
* WHEN...Until 2 PM MST /1 PM PST/ Thursday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Air Stagnation Advisory, an extended
period of stagnant air, with light winds and little vertical
mixing. This is due to an inversion near the surface that will
continue to trap pollutants.
* WHERE...Portions of southwest and west central Idaho and southeast
Oregon.
* WHEN...For the Dense Fog Advisory, until noon MST Wednesday. For
the Air Stagnation Advisory, until 2 PM MST Thursday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
* ADDITIONAL DETAILS...Areas of light snow will also occur with the
fog, making roads locally slick.
* WHAT...For the Dense Fog Advisory, visibility one quarter mile or
less in dense fog. For the Air Stagnation Advisory, an extended
period of stagnant air, with light winds and little vertical
mixing. This is due to an inversion near the surface that will
continue to trap pollutants.
* WHERE...Portions of southwest and west central Idaho and southeast
Oregon.
* WHEN...For the Dense Fog Advisory, until noon MST Wednesday. For
the Air Stagnation Advisory, until 2 PM MST Thursday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems. Low visibility could make driving conditions
hazardous.
* ADDITIONAL DETAILS...Areas of light snow will also occur with the
fog, making roads locally slick.
* WHAT...A moderate risk of sneaker waves is expected.
* WHERE...The beaches and shorelines of Curry, Coos, and Douglas
counties.
* WHEN...Through Wednesday morning.
* IMPACTS...Sneaker waves can run up significantly farther on
beaches than normal, including over rocks and jetties. These
waves can suddenly knock people off of their feet and quickly
pull them into the cold ocean waters, resulting in serious
injury or death. Waves may also lift driftwood logs, trapping
anyone caught underneath.
* View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...Visibility less than one quarter of a mile at times in
freezing fog.
* WHERE...In Oregon, Foothills of the Southern Blue Mountains of
Oregon and North Central Oregon. In Washington, Simcoe Highlands.
* WHEN...Until noon PST Wednesday.
* IMPACTS...Low visibility and slick roads could make driving
conditions hazardous.
* WHAT...Visibility less than one quarter mile at times in freezing
fog.
* WHERE...In Oregon, Foothills of the Northern Blue Mountains of
Oregon. In Washington, Kittitas Valley and Foothills of the Blue
Mountains of Washington.
* WHEN...Until noon PST Wednesday.
* IMPACTS...Low visibility and slick roads could make driving
conditions hazardous.
* WHAT...Visibility less than one quarter of a mile at times in
freezing fog.
* WHERE...In Oregon, Foothills of the Southern Blue Mountains of
Oregon and North Central Oregon. In Washington, Simcoe Highlands.
* WHEN...Until noon PST Wednesday.
* IMPACTS...Low visibility and slick roads could make driving
conditions hazardous.
* WHAT...Visibility less than one quarter mile at times in freezing
fog.
* WHERE...In Oregon, Foothills of the Northern Blue Mountains of
Oregon. In Washington, Kittitas Valley and Foothills of the Blue
Mountains of Washington.
* WHEN...Until noon PST Wednesday.
* IMPACTS...Low visibility and slick roads could make driving
conditions hazardous.
* WHAT...Visibility has improved but patches of dense fog in the
Treasure Valley will continue until early afternoon.
An extended period of stagnant air, with light winds and little
vertical mixing. This is due to an inversion near the surface that
will continue to trap pollutants.
* WHERE...Portions of southwest and west central Idaho and southeast
Oregon.
* WHEN...Until 2 PM MST Thursday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.