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Small Craft Advisory For Winds


URGENT - MARINE WEATHER MESSAGE
National Weather Service Portland OR
237 AM PST Fri Dec 15 2017

PZZ270-275-151845-
/O.CON.KPQR.SI.Y.0137.171215T1500Z-171216T0400Z/
Waters from Cape Shoalwater WA to Cascade Head OR from 10 to
60 NM-Waters from Cascade Head to Florence OR from 10 to 60 NM-
237 AM PST Fri Dec 15 2017

...SMALL CRAFT ADVISORY FOR WINDS REMAINS IN EFFECT FROM 7 AM
THIS MORNING TO 8 PM PST THIS EVENING...

* WINDS...Northwest winds 15 to 20 kts, with gusts up to 25 kts
  through this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory for wind means that wind speeds of 21 to
33 knots are expected. Inexperienced mariners...especially those
operating smaller vessels should avoid navigating in these
conditions.

&&

$$


http://www.weather.gov/portland


Small Craft Advisory


URGENT - MARINE WEATHER MESSAGE
National Weather Service Seattle WA
218 AM PST Fri Dec 15 2017

PZZ150-153-156-170-173-176-151830-
/O.CON.KSEW.SC.Y.0302.171215T1400Z-171216T1100Z/
Coastal Waters From Cape Flattery To James Island Out 10 Nm-
Coastal Waters From James Island To Point Grenville Out 10 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater Out 10 Nm-
Coastal Waters From Cape Flattery To James Island 10 To 60 Nm-
Coastal Waters From James Island To Point Grenville 10 To 60 Nm-
Coastal Waters From Point Grenville To Cape Shoalwater 10 To
60 Nm-
218 AM PST Fri Dec 15 2017

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THIS MORNING
TO 3 AM PST SATURDAY...

* WIND...Northwest 15 to 25 knots developing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Small Craft Advisory means that wind speeds of 21 to 33 knots
are expected to produce hazardous wave conditions to small craft.
Inexperienced mariners...especially those operating smaller
vessels should avoid navigating in these conditions.

&&

$$


Special Weather Statement


Special Weather Statement
National Weather Service Portland OR
336 AM PST Fri Dec 15 2017

ORZ003-005>008-010-011-014>016-WAZ019-020-022-039-040-045-046-
151900-
Coast Range of Northwest Oregon-Lower Columbia-
Greater Portland Metro Area-Central Willamette Valley-
South Willamette Valley-Northern Oregon Cascade Foothills-
Northern Oregon Cascades-Upper Hood River Valley-
Western Columbia River Gorge-Central Columbia River Gorge-
South Washington Cascades-Willapa Hills-I-
5 Corridor in Cowlitz County-Greater Vancouver Area-
South Washington Cascade Foothills-
Including the cities of Vernonia, Jewell, Sunset Summit,
Lees Camp, Trask, St. Helens, Clatskanie, Hillsboro, Portland,
Wilsonville, Oregon City, Gresham, Troutdale, Salem, McMinnville,
Woodburn, Stayton, Dallas, Eugene, Springfield, Corvallis,
Albany, Lebanon, Sandy, Estacada, Silver Falls State Park,
Sweet Home, Government Camp, Detroit, Santiam Pass, Parkdale,
Odell, Corbett, Rooster Rock, Multnomah Falls, Cascade Locks,
Hood River, Coldwater Ridge Visitors Center, Mount St. Helens,
Wind River Valley, Willapa, Frances, Elk Mountain, Ryderwood,
Longview, Kelso, Castle Rock, Vancouver, Battle Ground,
Ridgefield, Washougal, Yacolt, Amboy, Toutle, Ariel, Lake Merwin,
Yale Lake, Cougar, North Bonneville, Stevenson, Carson,
and Underwood
336 AM PST Fri Dec 15 2017

...PATCHY LIGHT FREEZING RAIN POSSIBLE THIS MORNING...

A front offshore will push increasing rain into the region later
this morning. At 3 am, temperatures in many lowland areas were in
the upper 20s to lower 30s. Temperatures will rise this morning.

But, there is a chance that temperatures may not warm above
freezing before the rain begins. This would result in patchy
light freezing rain. Since rainfall will be light, little if any
ice accumulation is expected.

Threat of the freezing rain will be 5 am and 8 am for valleys in
the Coast Range and Willapa Hills, and from 8 to 10 am for the
Willamette Valley and Clark County.

Again, most areas will not see the freezing rain, as will be
quite patchy and short-lived.

Threat of patchy freezing rain may last until 1 pm for valleys in
the south Washington Cascades, far north Oregon Cascades and Upper
Hood River Valley.

Motorist driving about this morning should be prepared for locally
icy conditions.


$$

Rockey.


Air Stagnation Advisory


URGENT - WEATHER MESSAGE
National Weather Service Portland OR
151 PM PST Thu Dec 14 2017

...STAGNANT AIR CONDITIONS CONTINUE IN THE CENTRAL AND SOUTHERN
WILLAMETTE VALLEY THROUGH EARLY FRIDAY...

ORZ007-008-151800-
/O.CON.KPQR.AS.Y.0002.000000T0000Z-171215T1800Z/
Central Willamette Valley-South Willamette Valley-
Including the cities of Salem, McMinnville, Woodburn, Stayton,
Dallas, Eugene, Springfield, Corvallis, Albany, and Lebanon
151 PM PST Thu Dec 14 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY...

* AIR QUALITY...Air quality may remain diminished due to an
  extended period of stagnant air conditions.

* TIMING...through early Friday morning.

* LOCATIONS...the southern Willamette Valley.

* IMPACTS...Limited ventilation may result in deteriorating air
  quality continuing through early Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Air Stagnation Advisory indicates that due to limited movement
of an air mass across the advisory area, pollution will increase
to dangerous levels. Persons with respiratory illness should
follow their physicians advice for dealing with high levels of
air pollution.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
1057 AM PST Thu Dec 14 2017

...STAGNANT AIR CONDITIONS CONTINUE INTO FRIDAY...

.An upper level ridge will persist over the Pacific Northwest.
This ridge will cause air movement to be limited over large
portions of the region. Areas of freezing fog will be possible
and the air quality will become unhealthy at times.

ORZ041-044-050-505-507>511-151800-
/O.CON.KPDT.AS.Y.0003.000000T0000Z-171215T1800Z/
East Columbia River Gorge-Lower Columbia Basin of Oregon-
Wallowa County-John Day Basin-
Foothills of the Northern Blue Mountains of Oregon-
Foothills of the Southern Blue Mountains of Oregon-
East Slopes of the Oregon Cascades-North Central Oregon-
Central Oregon-
including the cities of Arlington, The Dalles, Boardman,
Hermiston, Ione, Enterprise, Joseph, Wallowa, Dayville, John Day,
Mitchell, Monument, Spray, Pendleton, Pilot Rock, Heppner,
Condon, Fossil, La Pine, Sunriver, Dufur, Maupin, Bend, Madras,
Prineville, and Redmond
1057 AM PST Thu Dec 14 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY...

* AIR QUALITY...Moderate to unhealthy at times.

* TIMING...Stagnant air will persist into Friday.

* IMPACTS...Persons with respiratory issues should follow the
  advice of their physician on how to deal with poor air
  quality. Also outdoor burning may be limited, so please
  consult with your local burn agencies.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Air Stagnation Advisory indicates that due to limited movement
of an air mass across the advisory area...pollution has the
potential to increase to dangerous levels. Persons with
respiratory illness should follow their physicians advice for
dealing with high levels of air pollution.

During periods of stagnant air...state air quality agencies
highly recommend that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies...prolonged periods of
stagnant air can hold pollutants close to the ground...where
people live and breathe. Check with your local burn agency for
any current restrictions in your area.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Pendleton OR
1057 AM PST Thu Dec 14 2017

...STAGNANT AIR CONDITIONS CONTINUE INTO FRIDAY...

.An upper level ridge will persist over the Pacific Northwest.
This ridge will cause air movement to be limited over large
portions of the region. Areas of freezing fog will be possible
and the air quality will become unhealthy at times.

WAZ024-026>029-520-521-151800-
/O.CON.KPDT.AS.Y.0003.000000T0000Z-171215T1800Z/
Eastern Columbia River Gorge of Washington-Kittitas Valley-
Yakima Valley-Lower Columbia Basin of Washington-
Foothills of the Blue Mountains of Washington-
East Slopes of the Washington Cascades-Simcoe Highlands-
including the cities of White Salmon, Ellensburg, Thorp, Naches,
Sunnyside, Toppenish, Yakima, Connell, Prosser, Tri-Cities,
Dayton, Waitsburg, Walla Walla, Appleton, Cle Elum, Cliffdell,
Goldendale, and Bickleton
1057 AM PST Thu Dec 14 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY...

* AIR QUALITY...Moderate to unhealthy at times.

* TIMING...Stagnant air to persist into Friday.

* IMPACTS...Persons with respiratory issues should follow the
  advice of their physician on how to deal with poor air
  quality. Also outdoor burning may be limited, so please
  consult with your local burn agencies.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

An Air Stagnation Advisory indicates that due to limited movement
of an air mass across the advisory area...pollution has the
potential to increase to dangerous levels. Persons with
respiratory illness should follow their physicians advice for
dealing with high levels of air pollution.

During periods of stagnant air...state air quality agencies
highly recommend that no outdoor burning occur and that
residential wood burning devices be limited as much as possible.
According to state air quality agencies...prolonged periods of
stagnant air can hold pollutants close to the ground...where
people live and breathe. Check with your local burn agency for
any current restrictions in your area.

&&

$$

URGENT - WEATHER MESSAGE
National Weather Service Medford OR
1047 AM PST Thu Dec 14 2017

ORZ023-024-026-029>031-151800-
/O.CON.KMFR.AS.Y.0005.000000T0000Z-171215T1800Z/
Central Douglas County-Eastern Curry County and Josephine County-
Jackson County-Klamath Basin-
Northern and Eastern Klamath County and Western Lake County-
Central and Eastern Lake County-
Including the cities of Drain, Elkton, Roseburg, Sutherlin,
Green, Myrtle Creek, Canyonville, Grants Pass, Cave Junction,
Medford, Ashland, Altamont, Klamath Falls, Beatty, Bly, Crescent,
Gilchrist, Sprague River, Adel, and Lakeview
1047 AM PST Thu Dec 14 2017

...AIR STAGNATION ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
FRIDAY...

* Air stagnation locations include: All inland valleys.

* Impacts: Limited ventilation will result in degraded air
  quality, which may pose a risk to those working outside and to
  those with sensitive health issues.

* View the hazard area in detail at
  https://www.wrh.noaa.gov/mfr/HAZARD

Precautionary/preparedness actions...

An air stagnation advisory indicates that due to limited movement
of an air mass across the advisory area, pollution will increase.

&&

$$

BTL

U.S. Dept. of Commerce
NOAA National Weather Service
1325 East West Highway
Silver Spring, MD 20910
E-mail: w-nws.webmaster@noaa.gov
Page last modified: June 2, 2009
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