* WHAT...South winds 20 to 30 mph with gusts up to 45 mph.
* WHERE...Grande Ronde Valley.
* WHEN...Until 7 AM PST this morning.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Large waves and hazardous surf conditions. Breakers up to
25 to 30 feet.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...From 4 PM Wednesday to 10 PM PST Thursday.
* IMPACTS...Destructive waves may wash over beaches, jetties,
and other structures unexpectedly. People can be swept off
rocks and jetties and drown while observing high surf. Minor
beach erosion may damage coastal properties and buildings.
Higher than normal water run-up is expected on beaches and low-
lying shoreline.
* ADDITIONAL DETAILS...There is a high threat for sneaker waves.
* WHAT...Heavy wet snow possible above 4500 feet. Total snow
accumulations of 1 to 2 feet, with heaviest snowfall above 5500
feet. Winds could gust as high as 50 mph on higher exposed
terrain.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...From late Wednesday afternoon through Friday morning.
* IMPACTS...Travel could be difficult at times, with snow-packed
roadways.
* ADDITIONAL DETAILS...Two rounds of higher intensity snowfall
will most likely impact the Cascades later this week. The first
round will be late Wednesday afternoon through Thursday morning.
A second storm system will be quick on the first storm system
heels, and bring another round of heavy snowfall Thursday night
into Friday. The Timberline Highway, US-20 over Santiam Pass
and Highway 58 over Willamette Pass will be the roadways most
heavily impacted by the snow.
* WHAT...Heavy snow possible. Total snow accumulations of 1 to 2
feet possible. Winds could gust as high as 65 mph.
* WHERE...The southern Oregon Cascades north of Highway 140
including Crater Lake National Park, Diamond Lake, Highways 62,
138, and 51 at Willamette Pass. In Siskiyou County, higher
elevations including Sawyers Bar Road near Mount Etna, and the
pass at Snowman Summit on Highway 89.
* WHEN...From Wednesday late afternoon through Friday morning.
* IMPACTS...Heavy snow will cause snow-covered, hazardous roads and
reduced visibility. Travel could be very difficult to impossible.
The hazardous conditions could impact the Wednesday evening and
Thursday morning commutes. Strong winds could cause some blowing
snow further reducing visibility and may cause damage to trees and
power lines.
* WHAT...South winds 15 to 30 mph, with gusts 45 to 60 mph possible.
* WHERE...Areas above 1000 feet across the North and Central Coast
Range Mountains of Oregon and Willapa Hills.
* WHEN...From Wednesday evening through Thursday morning.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles.
* WHAT...South to southwest winds 20 to 30 mph, with gusts up to 60
mph possible.
* WHERE...South Washington and North and Central Oregon Coast.
* WHEN...From Wednesday evening through Thursday morning.
* IMPACTS...Damaging winds could blow down trees and power lines.
Widespread power outages are possible. Travel could be difficult,
especially for high profile vehicles.
* WHAT...For the current High Surf Warning, dangerously large
breaking waves of 24 to 29 ft through early this morning. For
the next High Surf Warning, dangerously large breaking waves of
30 to 35 ft.
* WHERE...The beaches and shorelines of Curry, Coos, and Douglas
counties.
* WHEN...For the current High Surf Warning, until 7 AM PST this
morning. For the next High Surf Warning, from 4 PM Wednesday to
4 PM PST Thursday.
* IMPACTS...Extremely large breaking waves will create very
hazardous conditions along beaches and area shorelines. Waves
will inundate beaches and surge into normally dry areas.
Infrastructure damage and significant beach erosion can be
expected.
* ADDITIONAL DETAILS...Conditions are expected to slowly improve
this morning, but another round of dangerous surf conditions can
be expected late Wednesday (Christmas Day) through Thursday.
Hazardous surf and beach conditions are likely to continue
through much of the weekend, with improving conditions possible
on Sunday.
* View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...For the current High Surf Warning, dangerously large
breaking waves of 24 to 29 ft through early this morning. For
the next High Surf Warning, dangerously large breaking waves of
30 to 35 ft.
* WHERE...The beaches and shorelines of Curry, Coos, and Douglas
counties.
* WHEN...For the current High Surf Warning, until 7 AM PST this
morning. For the next High Surf Warning, from 4 PM Wednesday to
4 PM PST Thursday.
* IMPACTS...Extremely large breaking waves will create very
hazardous conditions along beaches and area shorelines. Waves
will inundate beaches and surge into normally dry areas.
Infrastructure damage and significant beach erosion can be
expected.
* ADDITIONAL DETAILS...Conditions are expected to slowly improve
this morning, but another round of dangerous surf conditions can
be expected late Wednesday (Christmas Day) through Thursday.
Hazardous surf and beach conditions are likely to continue
through much of the weekend, with improving conditions possible
on Sunday.
* View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected,
mainly south of La Grande.
* WHERE...Grande Ronde Valley.
* WHEN...Until 7 AM PST this morning.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...South winds 20 to 30 mph with gusts 45 to 50 mph expected,
primarily at the base of the Blue Mountains.
* WHERE...Foothills of the Southern Blue Mountains of Oregon.
* WHEN...Until 7 AM PST this morning.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...South to southeast winds 35 to 40 mph with gusts 55 to 70
mph expected for the base of the northern Blue Mountains of Oregon.
* WHERE...Foothills of the Northern Blue Mountains of Oregon.
* WHEN...Until 7 AM PST this morning.
* IMPACTS...Damaging winds will blow down trees and power lines.
Travel will be difficult, especially for high profile vehicles.
* ADDITIONAL DETAILS...Strong and damaging winds will be observed
along Interstate 84 from Pendleton to Cabbage Hill, as well as
Highway 11 from Pendleton to Milton-Freewater.
* WHAT...Urban and small stream flooding caused by excessive
rainfall is expected.
* WHERE...A portion of southwest Oregon, including the following
county, Jackson.
* WHEN...Until 245 AM PST.
* IMPACTS...Minor flooding in low-lying and poor drainage areas.
Ponding of water in urban or other areas is occurring or is
imminent.
* ADDITIONAL DETAILS...
- At 1245 AM PST, Doppler radar indicated heavy rain. This will
cause urban and small stream flooding. Overflowing poor
drainage areas will cause minor flooding in the advisory
area. Between 1 and 1.5 inches of rain have fallen.
- Additional rainfall amounts of 0.5 to 1 inch are expected
over the area. This additional rain will result in minor
flooding.
- Some locations that will experience flooding include...
Medford, Ashland, Central Point, Eagle Point, Talent, Shady
Cove, Jacksonville, Rogue River, Gold Hill, Butte Falls,
White City, Agate Reservoir, Upper Table Rock Trailhead,
Touvelle State Park, Dodge Bridge Jackson County Park, Roxy
Ann Peak, Lower Table Rock Trailhead, Britt Gardens, Rogue
Elk Park and Jacksonville Woodlands Association Trails.
- http://www.weather.gov/safety/flood
* WHAT...South to southwest winds 25 to 35 mph with gusts up to 55
mph.
* WHERE...This includes the Summer Lake area, the mountains across
Lake County and eastern Klamath County, and Modoc County.
* WHEN...Until 4 AM PST early this morning.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected,
mainly south of La Grande.
* WHERE...Grande Ronde Valley.
* WHEN...Until 7 AM PST Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...South to southeast winds 35 to 50 mph with gusts 50 to 70
mph expected for the base of the northern Blue Mountains of Oregon.
* WHERE...Foothills of the Northern Blue Mountains of Oregon.
* WHEN...Until 7 AM PST Tuesday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Travel will be difficult, especially for high profile vehicles.
* ADDITIONAL DETAILS...Strong and damaging winds will be observed
along Interstate 84 from Pendleton to Cabbage Hill, as well as
Highway 11 from Pendleton to Milton-Freewater.
* WHAT...South winds 20 to 30 mph with gusts 45 to 50 mph expected,
primarily at the base of the Blue Mountains.
* WHERE...Foothills of the Southern Blue Mountains of Oregon.
* WHEN...Until 7 AM PST Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...South winds 25 to 35 mph with gusts up to 55 mph expected,
mainly south of La Grande.
* WHERE...Grande Ronde Valley.
* WHEN...From 10 PM this evening to 7 AM PST Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...South to southeast winds 30 to 40 mph with gusts 55 to 65
mph expected for the base of the northern Blue Mountains of Oregon.
* WHERE...Foothills of the Northern Blue Mountains of Oregon.
* WHEN...From 10 PM this evening to 7 AM PST Tuesday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Travel will be difficult, especially for high profile vehicles.
* ADDITIONAL DETAILS...Strong and damaging winds will be observed
along Interstate 84 from Pendleton to Cabbage Hill, as well as
Highway 11 from Pendleton to Milton-Freewater.
* WHAT...South winds 20 to 30 mph with gusts 45 to 50 mph expected,
primarily at the base of the Blue Mountains.
* WHERE...Foothills of the Southern Blue Mountains of Oregon.
* WHEN...From 10 PM this evening to 7 AM PST Tuesday.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
ESFPQR
A series of systems will bring an extended period of wet weather
across northwest Oregon and southwest Washington through the
weekend. This will lead to rises on rivers and creeks, beginning
Wednesday evening, Dec 25th through at least Sunday, December 29th.
There is currently a 15-30% probability that rivers west of the
Cascades reach minor flood stage over the next ten days.
Heavy rainfall may also cause ponding of water or localized urban
flooding, especially in low lying areas or other areas with poor
drainage. This also increases the potential for landslides and
debris flows.
The exact track of these upcoming storms will influence rainfall
amounts, and thus the potential for flooding. Shifts in storm track
can change the current outlook, so be sure to monitor
weather.gov/portland for the latest weather updates, as well as any
watches, warnings, or advisories that may be issued. To view the
latest river forecasts, visit water.noaa.gov/wfo/pqr.
