...The Flood Warning continues for the following rivers in Oregon...
Coquille River at Coquille affecting Coos County.
For the Coquille River...including Coquille...Moderate flooding is
forecast.
* WHAT...Minor flooding is occurring and moderate flooding is
forecast.
* WHERE...Coquille River at Coquille.
* WHEN...Until early Tuesday afternoon.
* IMPACTS...At 23.0 feet, Some farm buildings may be threatened and
roads covered in low areas by rising water. Expect widespread
flooding throughout the Coquille River floodplain.
* ADDITIONAL DETAILS...
- At 2:45 AM PST Friday the stage was 21.0 feet.
- Bankfull stage is 20.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 2:45 AM PST Friday was 21.0 feet.
- Forecast...The river will peak at 21.3 feet by around 11 am
PST Friday. It is forecast to fall below flood stage by 10 pm
PST Friday, then remain between 20 and 21 feet before rising
above flood stage again by around noon PST on Sunday. The
river is forecast to peak with a maximum value of 23.3 feet
Monday morning, then gradually fall to below flood stage
again sometime Tuesday.
- Flood stage is 21.0 feet.
- Flood History...This crest compares to a previous crest of
23.4 feet on 01/14/2000.
- http://www.weather.gov/safety/flood
* WHAT...Sneaker waves possible.
* WHERE...North and Central Coast of Oregon, and South
Washington Coast.
* WHEN...Through Sunday evening.
* 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 Sunday evening.
* 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.
ESFPQR
A series of storm systems will continue to bring a wet weather
pattern across northwest Oregon through the weekend. This will lead
to rises on rivers and creeks through at least December 30th. There
is currently a 30-50% chance that several rivers in northwest Oregon
will reach minor flood stage over the next 10 days, including: the
Wilson River, Siletz River, Tualatin River, Siuslaw River, Marys
Rivers, and the Pudding River. The Luckiamute River has the highest
chance of hitting minor flood stage at 85%. In addition, there is a
20-25% chance the Nehalem River, Trask River, Yamhill River and
Mohawk River will reach minor flood stage.
Heavy rainfall may also lead to ponding of water, general lowland
flooding and localized urban flooding, especially in low lying areas
or other areas with poor drainage. Heavy rainfall will also increase
the potential for landslides in areas of steep terrain and debris
flows over areas that have been burned by wildfires over the past
few years.
There is still some uncertainty regarding the exact track of these
upcoming storm systems and associated rain amounts. There is
currently a 10% chance the southern Willamette Valley will receive
2-3" of rain and the adjacent higher terrain of the Coast Range and
Cascades will receive 3-5" of rain Saturday evening through Sunday
morning. This represents the worst case scenario, which would result
in more widespread flooding issues. That said, the most likely
scenario is 1-2" of rain in the southern Willamette Valley and 2-3"
in the adjacent higher terrain of the Coast Range and Cascades. This
would result in minor and less widespread flooding. Shifts in the
forecast 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.
ESFPQR
A series of storm systems will continue to bring a wet weather
pattern across northwest Oregon through the weekend. This will lead
to rises on rivers and creeks through at least December 30th. There
is currently a 30-50% chance that several rivers in northwest Oregon
will reach minor flood stage over the next 10 days, including: the
Wilson River, Siletz River, Tualatin River, Siuslaw River, Marys
Rivers, and the Pudding River. The Luckiamute River has the highest
chance of hitting minor flood stage at 85%. In addition, there is a
20-25% chance the Nehalem River, Trask River, Yamhill River and
Mohawk River will reach minor flood stage.
Heavy rainfall may also lead to ponding of water, general lowland
flooding and localized urban flooding, especially in low lying areas
or other areas with poor drainage. Heavy rainfall will also increase
the potential for landslides in areas of steep terrain and debris
flows over areas that have been burned by wildfires over the past
few years.
There is still some uncertainty regarding the exact track of these
upcoming storm systems and associated rain amounts. There is
currently a 10% chance the southern Willamette Valley will receive
2-3" of rain and the adjacent higher terrain of the Coast Range and
Cascades will receive 3-5" of rain Saturday evening through Sunday
morning. This represents the worst case scenario, which would result
in more widespread flooding issues. That said, the most likely
scenario is 1-2" of rain in the southern Willamette Valley and 2-3"
in the adjacent higher terrain of the Coast Range and Cascades. This
would result in minor and less widespread flooding. Shifts in the
forecast 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.
* WHAT...Southwest winds 30 to 40 mph with gusts up to 75 mph.
* WHERE...Lake County and eastern Klamath County, and Modoc County,
including the Summer Lake area and Highway 31, the mountains
across Lake County and eastern Klamath County, and Modoc County.
* WHEN...Until 10 AM PST this morning.
* 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...Dangerously large breaking waves of 25 to 30 feet.
* WHERE...South Central Oregon Coast and Curry County Coast.
* WHEN...Until 7 AM PST Sunday.
* 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
especially during high tides. Infrastructure damage and
significant beach erosion can be expected.
* ADDITIONAL DETAILS...Surf conditions will be occasionally
worsened by high winds and seas as fronts pass each day
through Sunday.
* View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...Large breaking waves of 14 to 20 feet in the surf zone.
* WHERE...North Coast and Central Coast zones.
* WHEN...Until 10 AM PST this morning.
* IMPACTS...Dangerous swimming and surfing conditions and
localized beach erosion.
* WHAT...Wet snow above 4000 feet. Additional snow accumulations of
2 to 6 inches, with the highest snow amounts above 5000 feet.
Winds gusting as high as 35 mph.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...Until 7 PM PST this evening.
* IMPACTS...Travel could be difficult at times. Be prepared for snow
covered roads and slick surfaces.
* ADDITIONAL DETAILS...An active storm track will continue to
produce accumulating snow across the passes in the Cascades into
this weekend. However, there are two time periods when snow levels
will likely rise to 5000-5500 feet and be far enough above the
passes to temporarily limit snow accumulations. The first window
where snow levels will rise above the passes will occur between 3
AM Friday and 9 AM Friday. Another round of warmer air aloft will
most likely push snow levels above the passes Friday night as well.
* WHAT...Wet snow above 4000 feet. Additional snow accumulations of
2 to 6 inches, with the highest snow amounts above 5000 feet.
Winds gusting as high as 35 mph.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...Until 7 PM PST this evening.
* IMPACTS...Travel could be difficult at times. Be prepared for snow
covered roads and slick surfaces.
* ADDITIONAL DETAILS...An active storm track will continue to
produce accumulating snow across the passes in the Cascades into
this weekend. However, there are two time periods when snow levels
will likely rise to 5000-5500 feet and be far enough above the
passes to temporarily limit snow accumulations. The first window
where snow levels will rise above the passes will occur between 3
AM Friday and 9 AM Friday. Another round of warmer air aloft will
most likely push snow levels above the passes Friday night as well.
* WHAT...Snow. Additional snow accumulations of 1 to 4 inches,
except 4 to 8 inches in the mountains.
* WHERE...Baker County and northern portions of Harney County, and
Malheur County.
* WHEN...Until 10 AM PST /11 AM MST/ this morning.
* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous. Travel could be very difficult.
...The Flood Warning continues for the following rivers in
Washington...
Skokomish River At Potlatch affecting Mason County.
.Rounds of rain over the Olympics will keep the Skokomish River
above flood stage through the weekend.
* WHAT...Minor flooding is occurring and minor flooding is forecast.
* WHERE...Skokomish River at Potlatch.
* WHEN...Until further notice.
* IMPACTS...At 16.5 feet, the Skokomish River will cause widespread
flooding of pasture lands, with water flowing quickly over West
Bourgault Road and Skokomish Valley Road.
* ADDITIONAL DETAILS...
- At 10:30 PM PST Thursday the stage was 17.4 feet.
- Flood stage is 16.5 feet.
- The river crested at 17.5 feet around 5 PM Thursday.
- Forecast...The river is expected to remain between 17 and
17.4 feet into Saturday morning.
- http://www.weather.gov/safety/flood
* WHAT...Snow. Total snow accumulations between 6 and 12 inches
above 3500 feet and 2 to 6 inches below 3500 feet. Highest snow
accumulations above pass level.
* WHERE...Upper Slopes of the Eastern Washington Cascades Crest.
* WHEN...From 1 AM Friday to 4 PM PST Saturday.
* IMPACTS...Significant snowfall with periods of heavy snowfall
rates will combine with low visibility to create very difficult
driving conditions.
* WHAT...Snow. Total snow accumulations of 6 to 12 inches above 4500
feet.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...From 1 AM Friday to 4 AM PST Saturday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
* WHAT...Snow. Total snow accumulations of 6 to 12 inches above 4500
feet.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...From 1 AM Friday to 4 AM PST Saturday.
* IMPACTS...Periods of moderate and heavy snow will combine with low
visibilities to create difficult driving conditions.
* WHAT...Snow. Total snow accumulations of 3 to 6 inches above 4500
feet and 1 to 3 inches below 4000 feet. Winds gusting as high as
35 mph.
* WHERE...Ochoco-John Day Highlands.
* WHEN...Until 4 AM PST Saturday.
* IMPACTS...Significant snowfall with periods of heavy snowfall
rates will combine with low visibility to create very difficult
driving conditions.
* WHAT...Snow. Total snow accumulations of 4 to 8 inches above 4000
feet.
* WHERE...Southern Blue Mountains of Oregon.
* WHEN...Until 4 AM PST Saturday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow.
* WHAT...Snow. Additional snow accumulations of 5 to 9 inches above
4500 feet and 2 to 4 inches between 4000 and 4500 feet.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 7 PM PST Friday.
* IMPACTS...Travel could be difficult due to periods of moderate to
heavy snow. Gusty winds could bring down tree branches.
* WHAT...Snow expected. Total snow accumulations between 15 to 20
inches.
* WHERE...Holden Village and Stevens Pass.
* WHEN...From 1 AM Friday to 4 PM PST Saturday.
* IMPACTS...Periods of snow Friday and Saturday will create winter
driving conditions over Stevens Pass.
* ADDITIONAL DETAILS...Motorists should check pass conditions for
potential closures due to avalanche control.
* WHAT...Southwest winds 30 to 40 mph with gusts up to 70 mph
expected.
* WHERE...Lake County and eastern Klamath County, and Modoc County,
including the Summer Lake area and Highway 31, the mountains
across Lake County and eastern Klamath County, and Modoc County.
* WHEN...From midnight tonight to 10 AM PST Friday.
* IMPACTS...Damaging winds will blow down trees and power lines.
Widespread power outages are expected. Travel will be difficult,
especially for high profile vehicles.