* 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 south central, southwest, and west central
Idaho and northeast and southeast Oregon.
* WHEN...From 9 PM MST /8 PM PST/ this evening to 11 AM MST /10 AM
PST/ Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Poor air quality will continue. This is due to an inversion
and stagnant air conditions near the surface that will continue to
trap pollutants.
* WHERE...All inland valleys of southern Oregon, including but not
limited to the Rogue, Illinois, Umpqua, and Klamath valleys. This
includes the cities of Medford, Ashland, Klamath Falls, Roseburg,
Grants Pass, Elkton, Canyonville, Cave Junction, Lakeview,
Coquille, and Myrtle Point.
* WHEN...Until 10 AM PST Thursday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* ADDITIONAL DETAILS...Strong valley inversions, very shallow mixing
layers of less than 1000 feet, and calm winds are expected
throughout the advisory time, especially during the overnight and
morning hours. A weak front on Thursday may allow for a brief
period of improved mixing and particulate dispersion.
* WHAT...A moderate risk of sneaker waves is expected.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risks will be to west-facing beaches.
* WHEN...Through Tuesday evening.
* 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...Sneaker waves possible.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...Through Monday afternoon.
* IMPACTS...Waves can run up significantly farther on a beach than
normal, including over rocks and jetties. Sneaker waves can
suddenly knock people off of their feet and quickly pull them
into the frigid ocean which may lead to serious injury or
drowning.
* WHAT...Sneaker waves possible.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...Through Monday afternoon.
* IMPACTS...Waves can run up significantly farther on a beach than
normal, including over rocks and jetties. Sneaker waves can
suddenly knock people off of their feet and quickly pull them
into the frigid ocean which may lead to serious injury or
drowning.
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...East Portland Metro and Inner Portland Metro.
* WHEN...Until 10 AM PST Monday.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...A moderate risk of sneaker waves is expected.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risks will be to west-facing beaches.
* WHEN...For the first Beach Hazards Statement, through Monday
morning. For the second Beach Hazards Statement, from early
Tuesday morning through Tuesday afternoon.
* 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...A moderate risk of sneaker waves is expected.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risks will be to west-facing beaches.
* WHEN...For the first Beach Hazards Statement, through Monday
morning. For the second Beach Hazards Statement, from early
Tuesday morning through Tuesday afternoon.
* 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...A moderate risk of sneaker waves is expected.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risks will be to west-facing beaches.
* WHEN...Through Monday 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...Sneaker waves possible.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...Through Monday afternoon.
* IMPACTS...Waves can run up significantly farther on a beach
than normal, including over rocks and jetties. Sneaker waves
can suddenly knock people off of their feet and quickly pull
them into the frigid ocean which may lead to serious injury or
drowning.
* WHAT...Sneaker waves possible.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...Through Monday afternoon.
* IMPACTS...Waves can run up significantly farther on a beach
than normal, including over rocks and jetties. Sneaker waves
can suddenly knock people off of their feet and quickly pull
them into the frigid ocean which may lead to serious injury or
drowning.
* WHAT...Sneaker waves possible.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...From this evening through Monday morning.
* IMPACTS...Waves can run up significantly farther on a beach than
normal, including over rocks and jetties. Sneaker waves can
suddenly knock people off of their feet and quickly pull them
into the frigid ocean which may lead to serious injury or
drowning.
* WHAT...Sneaker waves possible.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...From this evening through Monday morning.
* IMPACTS...Waves can run up significantly farther on a beach than
normal, including over rocks and jetties. Sneaker waves can
suddenly knock people off of their feet and quickly pull them
into the frigid ocean which may lead to serious injury or
drowning.
* WHAT...A moderate risk of sneaker waves is expected.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risks will be to west-facing beaches.
* WHEN...From late Sunday afternoon through Monday 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...A moderate risk of sneaker waves is expected.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risks will be to west-facing beaches.
* WHEN...From Sunday late afternoon through Monday 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...Lower Treasure Valley Zones.
* WHEN...Until 11 AM MST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
* WHAT...Snow at or above elevations greater than 2500 ft.
Additional snow accumulations of around one inch through the
morning.
* WHERE...West Slopes North Central Cascades and Passes.
* WHEN...Until 6 AM PST early this morning.
* IMPACTS...Plan on slippery road conditions.
* ADDITIONAL DETAILS...Snow showers will continue in a Puget Sound
Convergence Zone early this morning before decreasing later this
morning.
* WHAT...Visibility one quarter mile or less in dense fog.
* WHERE...Lower Treasure Valley Zones.
* WHEN...Until 9 AM MST this morning.
* IMPACTS...Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Low confidence in dissipation timing.
* WHAT...A moderate risk of sneaker waves is expected.
* WHERE...Beaches along Curry, Coos, and Douglas Counties. The
highest risks will be to west-facing beaches.
* WHEN...From Sunday late afternoon through Monday 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
Areas of dense freezing fog will continue through 5 AM this
morning for the Moses Lake area. Fog will be locally dense
reducing visibility to a quarter mile or less. Travelers should
use extra caution when traveling through the area tonight.