Weather Alerts for Southwest OR

Issued by the National Weather Service

High Wind Warning  HIGH WIND WARNING   High Wind Warning
SOUTHWEST OR

Areas Affected:
South Central Oregon Coast
Effective: Thu, 12/18 12:48pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 10:00pm Severity:  Severe  Certainty: Likely

 
Details:
* WHAT...South winds 40 to 50 mph with gusts up to 80 mph.

* WHERE...Coastal headlands including along Highway 101 and the
communities of Port Orford, Bandon, Charleston, and Lakeside.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...High winds may move loose debris, damage property and
cause power outages. Travel could be difficult, especially for
high profile vehicles.

* ADDITIONAL DETAILS...The highest wind speeds are expected this
afternoon and evening.

Information:
People are urged to secure loose objects that could be blown around
or damaged by the wind.

High Wind Warning  HIGH WIND WARNING   High Wind Warning
SOUTHWEST OR

Areas Affected:
Curry County Coast
Effective: Thu, 12/18 12:48pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 10:00pm Severity:  Severe  Certainty: Likely

 
Details:
* WHAT...South winds 20 to 30 mph with gusts up to 65 mph expected
The south central Oregon coast.

* WHERE...The southern Oregon coast and headlands. This includes
exposed areas over 101 along the coast.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...High winds may move loose debris, damage property and
cause power outages. Travel could be difficult, especially for
high profile vehicles.

Information:
People are urged to secure loose objects that could be blown around
or damaged by the wind.

Flood Warning  FLOOD WARNING   Flood Warning
SOUTHWEST OR

Areas Affected:
Hood River, OR
Effective: Thu, 12/18 10:30am Updated: Thu, 12/18 3:45pm Urgency: Immediate
Expires: Thu, 12/18 10:30pm Severity:  Severe  Certainty: Observed

 
Details:
...The Flood Warning continues for the following rivers in
Washington...Oregon...

Cowlitz River at Kelso affecting Cowlitz County.

Johnson Creek at Sycamore affecting Multnomah and Clackamas
Counties.

Clackamas River at Estacada affecting Clackamas County.

Clackamas River near Oregon City affecting Clackamas County.

Sandy River near Bull Run affecting Multnomah and Clackamas
Counties.

Hood River Near Hood River affecting Hood River County.

Siuslaw River near Mapleton affecting Lane County.

Molalla River near Canby affecting Clackamas County.

Marys River near Philomath affecting Benton County.

Pudding River at Aurora affecting Marion and Clackamas Counties.

Luckiamute River near Suver affecting Polk and Benton Counties.

S Yamhill River at McMinnville affecting Yamhill County.

...The Flood Warning is extended for the following rivers in
Oregon...

Siletz River at Siletz affecting Lincoln County.

Trask River near Tillamook affecting Tillamook County.

* WHAT...Moderate flooding is forecast.

* WHERE...Hood River near Hood River.

* WHEN...From this evening to Friday evening.

* IMPACTS...Above 16.0 feet, expect significant riverbank erosion
and flooding of low-lying roads and property adjacent to the river
and tributary creeks. Portions of the Hood River Railroad may be
threatened by bank erosion and undercutting due to the turbulent
and fast-flowing water. Irrigation canals and headworks adjacent
to the river and tributaries may be inundated with floodwater and
debris.

* ADDITIONAL DETAILS...
- At 9:35 AM PST Thursday the stage was 8.7 feet.
- Bankfull stage is 12.0 feet.
- Forecast...The river will rise above flood stage late this
evening and crest around 15.7 feet late tonight. It will fall
below flood stage Friday afternoon.
- Flood stage is 13.0 feet.
- http://www.weather.gov/safety/flood

Information:
Be especially cautious at night when it is harder to recognize the
dangers of flooding.

Motorists should not attempt to drive around barricades or drive
through flooded areas.

Turn around, don't drown when encountering flooded roads. Most flood
deaths occur in vehicles.

Additional information is available at www.weather.gov.

The next statement will be issued this evening at 1030 PM PST.

Winter Weather Advisory  WINTER WEATHER ADVISORY   Winter Weather Advisory
SOUTHWEST OR

Areas Affected:
North Oregon Cascades - Cascades of Marion and Linn Counties - South Washington Cascades
Effective: Thu, 12/18 1:58pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Fri, 12/19 7:00am Severity:  Moderate  Certainty: Likely

 
Details:
* WHAT...Snow expected. Total snow accumulations of 6-12 inches
above 3000 feet, except up to 14-16 inches above 2500 feet in the
south Washington Cascades. Winds gusting as high as 40 mph.

* WHERE...In Oregon, North Oregon Cascades and Cascades of Marion
and Linn Counties. In Washington, South Washington Cascades.

* WHEN...From 4 AM Friday to 10 AM PST Saturday.

* IMPACTS...Roads, and especially bridges and overpasses, will
likely become slick and hazardous.

Information:
Have a winter emergency driving kit readily available. Common items
to include: flashlight, batteries, blankets, a shovel, water,
non-perishable food items, tire chains, etc.

Be aware that walking surfaces may be slick. Walk with extra care.

For the latest road conditions and chain restrictions in Oregon,
call 5 1 1, or visit: www.tripcheck.com.

For the latest road conditions and chain restrictions in Washington,
visit: wsdot.com/travel/real-time/map

High Surf Advisory  HIGH SURF ADVISORY   High Surf Advisory
SOUTHWEST OR

Areas Affected:
South Central Oregon Coast
Effective: Thu, 12/18 2:58am Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 4:00pm Severity: Minor Certainty: Likely

 
Details:
* WHAT...Large breaking waves of 20 to 25 ft.

* WHERE...Area beaches of Curry, Coos and Douglas counties from
Port Orford northward.

* WHEN...From 10 AM to 10 PM PST Thursday.

* IMPACTS...Large breaking waves will create hazardous
conditions along and within the surf zone, and could inundate
beaches and low lying shorelines. Beach erosion is possible,
and exposed infrastructure may be damaged.

* View the hazard area in detail at
https://www.wrh.noaa.gov/map/?wfo=mfr

Information:
Stay away from the surf zone and off of jetties. Area beaches may
become hazardous due to dangerous surf conditions.

Wind Advisory  WIND ADVISORY   Wind Advisory
SOUTHWEST OR

Areas Affected:
Central Douglas County - Eastern Curry County and Josephine County - Eastern Douglas County Foothills
Effective: Thu, 12/18 12:48pm Updated: Thu, 12/18 3:45pm Urgency: Expected
Expires: Thu, 12/18 10:00pm Severity:  Moderate  Certainty: Likely

 
Details:
* WHAT...Southwest winds 20 to 30 mph with gusts up to 50 mph.

* WHERE...Terrain in Douglas and Josephine counties as well as
Highway 199 through the Illinois Valley and including the
communities of Selma, Cave Junction, Obrien, and Takilma.

* WHEN...Until 4 AM PST Friday.

* IMPACTS...Gusty winds will blow around unsecured objects and a few
power outages may result.

Information:
Winds this strong can make driving difficult, especially for high
profile vehicles. Use extra caution.

Flood Watch  FLOOD WATCH   Flood Watch
SOUTHWEST OR

Areas Affected:
Clatsop County Coast - Tillamook County Coast - Central Coast of Oregon - North Oregon Coast Range Lowlands - Central Oregon Coast Range Lowlands - North Oregon Coast Range - Central Oregon Coast Range - Lower Columbia River - Tualatin Valley - West Hills and Chehalem Mountains - Inner Portland Metro - East Portland Metro - Outer Southeast Portland Metro - West Central Willamette Valley - East Central Willamette Valley - Benton County Lowlands - Linn County Lowlands - Lane County Lowlands - West Columbia River Gorge of Oregon above 500 ft - West Columbia River Gorge I-84 Corridor - Upper Hood River Valley - Central Columbia River Gorge I-84 Corridor - Clackamas County Cascade Foothills - Cascade Foothills of Marion and Linn Counties - Lane County Cascade Foothills - North Oregon Cascades - Cascades of Marion and Linn Counties - Cascades of Lane County - South Washington Coast - Willapa and Wahkiakum Lowlands - Willapa Hills - Cowlitz County Lowlands - North Clark County Lowlands - Inner Vancouver Metro - East Clark County Lowlands - South Washington Cascade Foothills - West Columbia River Gorge - SR 14 - Central Columbia River Gorge - SR 14 - South Washington Cascades
Effective: Thu, 12/18 2:42am Updated: Thu, 12/18 3:45pm Urgency: Future
Expires: Thu, 12/18 7:00pm Severity:  Severe  Certainty: Possible

 
Details:
* WHAT...Flooding caused by excessive rainfall continues to be
possible.

* WHERE...Northwest Oregon and southwest Washington including the
following counties. In Oregon: Benton, Clackamas, Clatsop,
Columbia, Hood River, Lane, Linn, Lincoln, Marion, Multnomah,
Polk, Tillamook, Washington, and Yamhill. In Washington: Clark,
Cowlitz, Pacific, Skamania, and Wahkiakum.

* WHEN...Through Saturday afternoon.

* IMPACTS...Excessive runoff may result in flooding of rivers,
creeks, streams, and other low-lying and flood-prone locations.
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.
Landslides and debris flows are possible during this flood event.
People, structures, and roads located below steep slopes, in
canyons, and near the mouths of canyons may be at serious risk
from rapidly moving landslides.

* ADDITIONAL DETAILS...
- An atmospheric river is forecast to bring periods of heavy
rain to northwestern Oregon and southwestern Washington
today. This system occurs at a time when area rivers continue
to run high and soils remain saturated following heavy rain
earlier in the month. During initial heavy rainfall today,
the urban and small stream flooding threat will be most
urgent, although the details of precise timing and location
of the highest risk remains uncertain at this time. As runoff
works its way downstream, the river flooding threat will
increase tonight into Friday, with numerous area rivers now
forecast to reach at least Minor flood stage. Slower reacting
rivers may stay in flood stage into Saturday afternoon.
- http://www.weather.gov/safety/flood

Information:
You should monitor later forecasts and be alert for possible Flood
Warnings. Those living in areas prone to flooding should be prepared
to take action should flooding develop.

Hydrologic Outlook  HYDROLOGIC OUTLOOK   Hydrologic Outlook
SOUTHWEST OR

Areas Affected:
Coos, OR - Curry, OR - Douglas, OR - Josephine, OR
Effective: Thu, 12/18 3:15pm Updated: Thu, 12/18 3:45pm Urgency: Future
Expires: Fri, 12/19 2:00pm Severity: Unknown Certainty: Possible

 
Details:
ESFMFR

An atmospheric river arrives tonight and persists through
Friday, bringing a round of moderate to heavy rainfall. Rain
amounts of 2 to 4 inches are expected, with the highest amounts
likely in Curry County. This is a slight decrease in rainfall
amounts as the focus of the atmospheric river lingers a bit longer
to our north before arriving in Douglas County and farther south.

Despite the slightly reduced rainfall expected, small streams and
creeks are still likely to run high and could result in nuisance
flooding along with ponding of water on roadways during periods of
heavy rain. Significant rises on mainstem rivers are expected, but
the overall concern for widespread river flooding is low at this
time due to antecedent dry conditions and minimal snowpack. We will
be monitoring rivers in the Coquille and Umpqua Basins for flooding
potential.

This product will be updated as necessary. Watches and warnings may
be issued by the National Weather Service if this situation worsens.