ESFSEW
A stronger storm will set up along the coast over the weekend with
the potential to bring more significant precipitation to the region.
Heaviest amounts over the southwestern slopes of the Olympic
Mountains may result in potential for the Skokomish River to rise
above flood stage Saturday afternoon. Snow levels around 4500 feet
Saturday are expected to lower to around 3000 feet early Sunday
morning. Ongoing precipitation through early next week could help
keep the river levels elevated into Monday.
Please monitor the latest river forecasts from the National Weather
Service for additional information.
* WHAT...Mixed precipitation expected. Total snow accumulations up
to two inches and ice accumulations less than a tenth of an inch.
* WHERE...North Central Oregon.
* WHEN...Until 7 PM PST this evening.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Even light ice and snow can
cause dangerous driving conditions due to slippery roads.
* WHAT...Mixed precipitation expected. Ice accumulations less than a
tenth of an inch.
* WHERE...Foothills of the Blue Mountains of Oregon.
* WHEN...Until 7 PM PST this evening.
* 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.
* ADDITIONAL DETAILS...The greatest threat for freezing rain is
expected to be right at the base of the Blue Mountains, including
I-84 near Cabbage Hill.
* 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 southeast
Oregon.
* WHEN...Until 2 PM MST Friday.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* 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 Idaho and northeast and southeast
Oregon.
* WHEN...Until 2 PM MST /1 PM PST/ this afternoon.
* IMPACTS...Poor air quality may cause issues for people with
respiratory problems.
* WHAT...Mixed precipitation expected. Total snow accumulations up
to one inch and ice accumulations around a light glaze.
* WHERE...Foothills of the Blue Mountains of Oregon.
* WHEN...Until noon PST Thursday.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Even light snowfall amounts can
accumulate on roads and cause dangerous driving conditions due to
slippery and snow-covered roads. The hazardous conditions could
impact the Thursday morning commute.
* WHAT...Mixed precipitation expected. Total snow accumulations up
to one inch and ice accumulations around a light glaze.
* WHERE...North Central Oregon.
* WHEN...Until noon PST Thursday.
* IMPACTS...Even light snowfall amounts can accumulate on roads and
cause dangerous driving conditions due to slippery and
snow-covered roads. The hazardous conditions could impact the
Thursday morning commute.
* WHAT...Visibility one quarter mile or less in freezing fog.
* WHERE...Foothills of the Blue Mountains of Oregon, and North
Central Oregon.
* WHEN...Until 10 AM PST Thursday.
* IMPACTS...Low visibility could make driving conditions hazardous.
* ADDITIONAL DETAILS...Areas of dense freezing fog have developed
across north-central Oregon and the Foothills of the Blue
Mountains of Oregon, including along Highways 97, 197, 11 and 207
as well as Interstate 84.
Pockets of fog and freezing fog, locally dense, are expected to
persist through this evening into tonight across north-central
Oregon and along the Foothills of the Blue Mountains.
ESFSEW
A stronger storm will set up along the coast over the weekend with
the
potential to bring more significant precipitation to the region.
Heaviest amounts over the southwestern slopes of the Olympic
Mountains result in potential for the Skokomish River to rise above
flood stage Saturday afternoon. Snow levels around 4500 feet
Saturday are expected to lower to around 3000 feet early Sunday
morning. Ongoing precipitation through early next week could help
keep the river levels elevated into Monday.
Please monitor the latest river forecasts from the National Weather
Service for additional information.
* WHAT...Mixed precipitation expected. Total snow accumulations up
to one inch and ice accumulations around 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...Mixed precipitation expected. Total snow accumulations up
to one inch and ice accumulations to 0.05 inches.
* WHERE...North Central 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...South winds 40 to 50 mph with gusts up to 70 mph possible.
* WHERE...Southern Oregon coast from Brookings to Cape Arago,
including Gold BEach, Pistol River, Humbug Mountain, Cape Blanco,
Bandon, area headlands and capes, and exposed portions of Highway
101.
* WHEN...From Friday morning through Friday evening.
* IMPACTS...Damaging winds could blow down trees and power lines,
and may damage unsecured property. Power outages are possible.
Travel could be difficult, especially for high profile vehicles.
* 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...Significant coastal flooding possible. Inundation of 2 to
3 feet above ground level is likely along shorelines and low-
lying coastal areas. Waves of 15-17 feet are expected along the
coast.
* WHERE...North Coast and Central Coast zones.
* WHEN...Highest impacts will occur within 2 hours of the 11 AM
high tide on Saturday.
* IMPACTS...Numerous roads may be closed. Low lying property
including homes, businesses, and some critical infrastructure
may be inundated or damaged. Some shoreline erosion may occur.
* ADDITIONAL DETAILS...Forecast confidence is currently moderate
in 2 to 3 feet of inundation. However, there is a 10 percent
chance of water levels up to 3.5 feet above ground level. In
addition to the expected flooding on Saturday, flooding will be
possible starting Friday and will continue through Monday during
the late morning to mid-day high tides.
Pockets of dense freezing fog will continue to impact higher
elevation areas along the Blue mountain foothills, especially
along Interstate 84 through at Cabbage Hill. Visibilities at or
less than a quarter mile will persist through this evening and
overnight.
Pockets of dense freezing fog will continue to impact areas of
north central Oregon through this evening and overnight,
especially along portions of Highway 97 and 197. Visibilities to a
quarter mile or lower will be possible.
* 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...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 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.