* WHAT...For the High Wind Warning, southwest winds 25 to 40 mph
with gusts up to 65 mph. For the High Wind Watch, southwest winds
25 to 40 mph with gusts up to 65 mph possible.
* WHERE...Much of Highway 31 from Silver Lake to Valley Falls,
including Summer Lake and also the mountains across Lake County,
eastern Klamath County, and Modoc County.
* WHEN...From 7 PM PST this evening until 10 AM PST Saturday.
* IMPACTS...Damaging winds can blow down trees and power lines
resulting power outages. Travel will be difficult, especially for
high profile vehicles.
...Forecast flooding changed from Moderate to Major severity and
increased in duration for the following rivers in Oregon...
Coquille River at Coquille affecting Coos County.
For the Coquille River...including Coquille...Minor flooding is
occurring and major flooding is forecast.
* WHAT...Minor flooding is occurring and major flooding is forecast.
* WHERE...Coquille River at Coquille.
* WHEN...Until Wednesday morning.
* 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.
At 24.0 feet, Homes and roads are threatened in low-lying areas
along and near the Coquille River. Expect significant widespread
flooding throughout the Coquille River estuary to Myrtle Point.
At 25.0 feet, Some homes are flooded along and near the Coquille
River. Roads are flooded in spots in low-lying areas near the
Coquille River.
* ADDITIONAL DETAILS...
- At 8:45 PM PST Friday the stage was 22.1 feet.
- Bankfull stage is 20.0 feet.
- Recent Activity...The maximum river stage in the 24 hours
ending at 8:45 PM PST Friday was 22.1 feet.
- Forecast...The river will oscillate above flood stage with a
maximum value of 25.1 feet early Monday morning. The river
will then gradually fall below flood stage Tuesday night or
Wednesday morning.
- Flood stage is 21.0 feet.
- Flood History...This crest compares to a previous crest of
24.9 feet on 12/07/1981.
- http://www.weather.gov/safety/flood
...The National Weather Service in Medford OR has issued a Flood
Watch for the following rivers in Oregon...
South Fork Coquille River at Myrtle Point affecting South Central
Oregon Coast zone.
* WHAT...Minor flooding is possible due to excessive rainfall.
* WHERE...South Fork Coquille River at Myrtle Point.
* WHEN...From Sunday morning to Monday afternoon.
* IMPACTS...At 30.0 feet, Agricultural and pasture land begins to
flood. Impacts on cattle grazing are possible.
At 32.0 feet, Numerous areas of farmland become flooded and water
nears the roads on the west side of the Spruce Street Bridge in
Myrtle Point.
At 33.0 feet, The South Fork Coquille River is at flood stage.
Expect flooding of roads west of the Spruce Street Bridge and
significant pasture and agricultural land flooding.
* ADDITIONAL DETAILS...
- At 6:20 PM PST Friday the stage was 31.5 feet.
- Forecast...Flood stage may be reached Sunday morning through
Monday afternoon based on the latest forecast information.
- Flood stage is 33.0 feet.
- http://www.weather.gov/safety/flood
* WHAT...Wet snow above 4500 feet. Additional snow accumulations of
2 to 6 inches. Winds gusting as high as 35 mph.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 4 AM PST Saturday.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Wet snow above 4000 feet. Additional snow accumulations up
to three inches. Winds gusting as high as 35 mph.
* WHERE...Ochoco-John Day Highlands.
* WHEN...Until 4 AM PST Saturday.
* IMPACTS...Even light snowfall amounts can accumulate on roads and
cause dangerous driving conditions due to slippery and
snow-covered roads.
* WHAT...Wet snow above 4000 feet. Additional snow accumulations up
to three inches. Winds gusting as high as 35 mph.
* WHERE...Southern Blue Mountains of Oregon.
* WHEN...Until 4 AM PST Saturday.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Wet snow above 4500 feet. Additional snow accumulations of
3 to 5 inches. Winds gusting as high as 40 mph.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 11 PM PST this evening.
* IMPACTS...Plan on slippery road conditions.
* ADDITIONAL DETAILS...Rising snow levels over late tonight into
early morning could lead to a period of rain and snow mix or rain
before returning to snow tomorrow when snow levels drop and
conditions cool. This may also lead to icy conditions tomorrow.
* WHAT...Southwest winds 25 to 40 mph with gusts up to 65 mph
expected.
* WHERE...Much of Highway 31 from Silver Lake to Valley Falls,
including Summer Lake and also the mountains across Lake County,
eastern Klamath County, and Modoc County.
* WHEN...From 7 PM PST this evening until 10 AM PST Saturday.
* IMPACTS...Damaging winds can blow down trees and power lines
resulting power outages. Travel will be difficult, especially for
high profile vehicles.
* WHAT...Southwest winds 25 to 35 mph with gusts up to 50 mph.
* WHERE...Mostly the higher terrain of Eastern Curry County and
Josephine County.
* WHEN...Until 10 PM PST this evening.
* IMPACTS...Gusty winds will blow around unsecured objects. Tree
limbs could be blown down and a few power outages may result.
* WHAT...Dangerously large breaking waves of 25 to 30 feet.
* WHERE...The beaches and shorelines of Curry, Coos, and Douglas
counties.
* 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.
Infrastructure damage and significant beach erosion can be
expected.
* View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr
* WHAT...Wet snow above 4500 feet. Additional snow accumulations of
2 to 6 inches. Winds gusting as high as 35 mph.
* WHERE...In Oregon, Northern Blue Mountains of Oregon. In
Washington, Northwest Blue Mountains.
* WHEN...Until 4 AM PST Saturday.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Wet snow above 4000 feet. Additional snow accumulations up
to three inches. Winds gusting as high as 35 mph.
* WHERE...Southern Blue Mountains of Oregon.
* WHEN...Until 4 AM PST Saturday.
* IMPACTS...Plan on slippery road conditions.
* WHAT...Wet snow above 4000 feet. Additional snow accumulations up
to three inches. Winds gusting as high as 35 mph.
* WHERE...Ochoco-John Day Highlands.
* WHEN...Until 4 AM PST Saturday.
* IMPACTS...Even light snowfall amounts can accumulate on roads and
cause dangerous driving conditions due to slippery and
snow-covered roads.
* WHAT...Wet snow above 4500 feet. Additional snow accumulations up
to three inches. Winds gusting as high as 40 mph.
* WHERE...East Slopes of the Oregon Cascades.
* WHEN...Until 7 PM PST this evening.
* IMPACTS...Plan on slippery road conditions.
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. The
Luckiamute River has the highest chance of hitting minor flood stage
at 95%. There is a 40-45% chance that the Pudding River will reach
minor flood stage, and a 20-25% chance that the Wilson River,
Siuslaw River, and Marys Riverwill 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 the
Sunday system. 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.
Another wet storm system arrives tonight and persists through
Saturday morning. This system will produce a wet snowfall which
could make roads slick. Accumulations will be highest above 5500
feet.
* WHAT...Mixed precipitation above 4000 feet. Additional snow
accumulations up to 8 inches up to 5500 feet, and up to 10 inches
along the peaks. Winds gusting as high as 45 mph and up to 55 mph
along the peaks.
* WHERE...South Washington Cascades and the Northern and Central
Cascades of Oregon.
* WHEN...Until 1 PM PST Saturday.
* IMPACTS...Travel could be very difficult. Gusty winds could bring
down tree branches. Wet snow will still accumulate which can make
for slick driving conditions.
* ADDITIONAL DETAILS...A brief lull in precipitation today will
quickly ramp up after 6 PM. Snow amounts will be greatest above
5500 feet where up to 15 inches is possible. Snow levels will
hover right around pass level. Winds will be gusty tonight around
45 mph but there is a 30% chance of gusts greater than 55 mph. If
these wind gusts were to occur, reduced visibility is possible.
* WHAT...Sneaker waves possible.
* WHERE...In Oregon, Central Coast of Oregon. In Washington,
South Washington Coast.
* WHEN...Through Sunday evening.
* IMPACTS...Waves can run up significantly farther on a beach than
normal, including over rocks and jetties. A 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...For the Coastal Flood Advisory, tidal overflow flooding.
For the Beach Hazards Statement, sneaker waves possible.
* WHERE...Clatsop and Tillamook Coast.
* WHEN...For the Coastal Flood Advisory, until 2 PM PST
Saturday. For the Beach Hazards Statement, through Sunday
evening.
* IMPACTS...Minor flooding, up to one foot above ground level,
during high tides is expected in the low lying areas near bays,
sloughs, and the lower reaches of the coastal rivers. Waves can
run up significantly farther on a beach than normal, including
over rocks and jetties. A 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...For the Coastal Flood Advisory, tidal overflow flooding.
For the Beach Hazards Statement, sneaker waves possible.
* WHERE...Clatsop and Tillamook Coast.
* WHEN...For the Coastal Flood Advisory, until 2 PM PST
Saturday. For the Beach Hazards Statement, through Sunday
evening.
* IMPACTS...Minor flooding, up to one foot above ground level,
during high tides is expected in the low lying areas near bays,
sloughs, and the lower reaches of the coastal rivers. Waves can
run up significantly farther on a beach than normal, including
over rocks and jetties. A 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.
A series of wet frontal systems will produce periods of moderate to
heavy precipitation through this weekend. Significant rises
are expected late this week, but especially Saturday night into
early next week. Forecast precipitation totals from Friday night
through Sunday could reach 1 to 3 inches over the west side valleys,
with 3 to 6 inches possible in the mountains and along the coast.
Up to 8 inches of rain could fall in the Curry coastal ranges.
This rainfall will increase the risk for both flash flooding,
especially over area burn scars, as well as small stream and river
flooding.
* WHAT...Flooding caused by excessive rainfall is possible.
* WHERE...Portions of southwest Oregon and northern California. This
includes all valleys west of the Cascades and the cities of
Roseburg, Medford, Cave Junction, Grants Pass, Coos Bay, Gold
Beach, Yreka and Mount Shasta City.
* WHEN...From Saturday morning through Sunday afternoon.
* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
Creeks and streams may rise out of their banks. Flooding may occur
in poor drainage and urban areas. Storm drains and ditches may
become clogged with debris. Area creeks and streams are running
high and could flood with more heavy rain.
* ADDITIONAL DETAILS...
- http://www.weather.gov/safety/flood
