Pacific City, Oregon

The Flood Warning continues for
the Nehalem river near Foss.
* From late tonight to Tuesday afternoon... or until the warning is
cancelled.
* At 8 PM Monday the stage was... 11.5 feet / 14400 cfs.
* Flood stage is 14.0 feet and flood flow is 21000 cfs.
* Minor flooding is forecast.
* Forecast... this river will crest at or just above flood stage
around 4 am Tuesday.
* Impact... above 14 ft... expect minor flooding of low lying farm land
and structures.

... Flood Watch remains in effect through Tuesday evening...

The Flood Watch continues for

* portions of northwest Oregon and southwest Washington...
including the following areas... in northwest Oregon... Coast
Range of northwest Oregon... greater Portland Metro area...
lower Columbia and north Oregon coast. In southwest
Washington... Greater Vancouver area... I-5 corridor in Cowlitz
County... South Washington Cascade foothills... South Washington
coast and Willapa Hills.

* Through Tuesday evening

* additional heavy rain is expected Monday night and Tuesday
morning... with amounts of 2 to 4 inches in the coastal hills and
South Washington Cascades... and up to 1 inch in valley locations.

* Rivers of most concern for flooding include the Naselle river in
southwest Washington... and the Wilson river in northwest Oregon.
Some small stream and urban flooding is also a possibility
Monday night and Tuesday morning. Note that flood warnings are
already in effect for the Grays and Willapa rivers in southwest
Washington and the Nehalem river in northwest Oregon.

Precautionary/preparedness actions...

A Flood Watch means there is a potential for flooding based on
current forecasts.

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.

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.

The next update for this watch will be issued by 4 am Tuesday.

230 PM PST Mon Nov 16 2009

... High surf advisory now in effect until 6 PM PST Tuesday for the
north Oregon coast...
... Coastal Flood Advisory in effect from 10 PM this evening to
3 PM PST Tuesday for minor tidal overflow along low lying sections
of the north Oregon coast...

The National Weather Service in Portland has issued a coastal
Flood Advisory... which is in effect from 10 PM this evening to
3 PM PST Tuesday. The high surf advisory is now in effect until
6 PM PST Tuesday.

A series of disturbances from a strong Pacific storm system will
generate large seas and high winds through early Tuesday along the
north Oregon coast. Meanwhile... published astronomical tides will
be near their monthly maximum due to the new moon. The published
tide for Tongue Point Oregon is expected to peak at 7.6 feet on
Tuesday at 2 am... and at 9.5 feet at 1 PM on Tuesday. Storm surge
associated with the large developing offshore low pressure system
will likely be in the 1 to 3 foot range tonight and Tuesday.
Also... rising rivers from the locally heavy rain in the north
Coast Range will further raise the water level in the bays
draining the north Coast Range.

As a result... minor tidal overflow is expected to occur along low
lying portions of the north Oregon coast through Tuesday. The
greatest possibility of tidal overflow will be during the high
tide around 1 PM on Tuesday... but it is also possible during the
lower high tide around 2 am Tuesday morning.

During the storm... seas will climb to 23 to 27 feet with periods
around 11 seconds. These large seas will make for dangerous beach
conditions with waves pummeling the surf zone which will only be
exacerbated by the prominence of the enhanced lunar tidal cycle.
Seas have already reached 23 feet earlier today off the mouth of
the Columbia River... and will likely peak closer to the value of
27 ft tonight during the period of the strongest winds. Due to
the magnitude of the high tides... waves will travel much farther
up the beach than usual... creating a dangerous situation in which
extreme caution must be exercised. Large logs and other debris can
easily be tossed around by the force of these waves... even the
largest logs can roll easily on gently sloped beaches in ankle
deep water.

Precautionary/preparedness actions...

A coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

A high surf advisory means that high surf will affect beaches in
the advisory area... producing rip currents and localized beach
erosion.

... High Wind Warning remains in effect until 2 am PST Tuesday for
the South Washington and north Oregon coast...

A High Wind Warning remains in effect until 2 am PST Tuesday.

A prolonged period of strong south winds will continue through
tonight along the South Washington and north Oregon coasts. South
winds of 35 to 45 mph with gusts to near 70 mph have already been
reported earlier today. The winds will increase and reach their
peak tonight... with sustained south winds of 35 to 50 mph... and
gusts up to 75 mph. However... on the open beaches and headlands...
sustained winds of 50 to 60 mph with gusts up to 85 mph are
likely. The winds will then decrease early Tuesday morning once a
strong cold front moves onshore and the very strong offshore low
moves into British Columbia.

Precautionary/preparedness actions...

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage. Winds may gust
close to 90 mph along the immediate coastal headlands and beaches
tonight... and speeds near these values can cause power outages
and downed trees.

11/16/2009 0805 am

Cape Meares, Tillamook County.

Non-thunderstorm wind gust m62.00 mph, reported by mesonet.





11/16/2009 0145 PM

10 miles S of Tillamook, Tillamook County.

Non-thunderstorm wind gust m82.00 mph, reported by amateur radio.





11/16/2009 0300 PM

Pacific City, Tillamook County.

Non-thunderstorm wind gust m82.00 mph, reported by amateur radio.





11/16/2009 0315 PM

Cannon Beach, Clatsop County.

Non-thunderstorm wind gust m67.00 mph, reported by trained spotter.





11/16/2009 0315 PM

Rockaway Beach, Tillamook County.

Non-thunderstorm wind gust m73.00 mph, reported by amateur radio.





11/16/2009 0806 am

10 miles S of Tillamook, Tillamook County.

Non-thunderstorm wind gust m63.00 mph, reported by mesonet.


            Recorded at Mt. Hebo




11/16/2009 0330 PM

Cape Meares, Tillamook County.

Non-thunderstorm wind gust m74.00 mph, reported by amateur radio.





11/16/2009 0400 PM

Garibaldi, Tillamook County.

Non-thunderstorm wind gust m89.00 mph, reported by official NWS obs.






11/16/2009 0823 am

Rockaway Beach, Tillamook County.

Non-thunderstorm wind gust m64.00 mph, reported by mesonet.





11/16/2009 0836 am

Garibaldi, Tillamook County.

Non-thunderstorm wind gust m79.00 mph, reported by official NWS obs.


            Peak gust




11/16/2009 0900 am

Clatsop Spit, Clatsop County.

Non-thunderstorm wind gust m70.00 mph, reported by official NWS obs.


            Peak gust with sustained winds 55 mph




11/16/2009 0900 am

Clatsop Spit, Clatsop County.

Non-thunderstorm wind gust m70.00 mph, reported by official NWS obs.


            40 mph sustained, gusts 70 mph




11/16/2009 0435 am

Garibaldi, Tillamook County.

Non-thunderstorm wind gust m63.00 mph, reported by official NWS obs.


            46 mph sustained




11/16/2009 0145 PM

10 miles S of Tillamook, Tillamook County.

Non-thunderstorm wind gust m82.00 mph, reported by amateur radio.





11/16/2009 0300 PM

Pacific City, Tillamook County.

Non-thunderstorm wind gust m82.00 mph, reported by amateur radio.





11/16/2009 0315 PM

Cannon Beach, Clatsop County.

Non-thunderstorm wind gust m67.00 mph, reported by trained spotter.





11/16/2009 0315 PM

Rockaway Beach, Tillamook County.

Non-thunderstorm wind gust m73.00 mph, reported by amateur radio.





11/16/2009 0805 am

Cape Meares, Tillamook County.

Non-thunderstorm wind gust m62.00 mph, reported by mesonet.





11/16/2009 0330 PM

Cape Meares, Tillamook County.

Non-thunderstorm wind gust m74.00 mph, reported by amateur radio.





11/16/2009 0400 PM

Garibaldi, Tillamook County.

Non-thunderstorm wind gust m89.00 mph, reported by official NWS obs.






11/16/2009 0806 am

10 miles S of Tillamook, Tillamook County.

Non-thunderstorm wind gust m63.00 mph, reported by mesonet.


            Recorded at Mt. Hebo




11/16/2009 0823 am

Rockaway Beach, Tillamook County.

Non-thunderstorm wind gust m64.00 mph, reported by mesonet.





11/16/2009 0836 am

Garibaldi, Tillamook County.

Non-thunderstorm wind gust m79.00 mph, reported by official NWS obs.


            Peak gust




11/16/2009 0900 am

Clatsop Spit, Clatsop County.

Non-thunderstorm wind gust m70.00 mph, reported by official NWS obs.


            Peak gust with sustained winds 55 mph




11/16/2009 0435 am

Garibaldi, Tillamook County.

Non-thunderstorm wind gust e63.00 mph, reported by official NWS obs.


            46 mph sustained




11/16/2009 0805 am

Cape Meares, Tillamook County.

Non-thunderstorm wind gust m62.00 mph, reported by mesonet.





11/16/2009 0806 am

10 miles S of Tillamook, Tillamook County.

Non-thunderstorm wind gust m63.00 mph, reported by mesonet.


            Recorded at Mt. Hebo




11/16/2009 0823 am

Rockaway Beach, Tillamook County.

Non-thunderstorm wind gust m64.00 mph, reported by mesonet.





11/16/2009 0836 am

Garibaldi, Tillamook County.

Non-thunderstorm wind gust m79.00 mph, reported by official NWS obs.


            Peak gust




11/16/2009 0900 am

Clatsop Spit, Clatsop County.

Non-thunderstorm wind gust m70.00 mph, reported by official NWS obs.


            Peak gust with sustained winds 55 mph




11/16/2009 0435 am

Garibaldi, Tillamook County.

Non-thunderstorm wind gust e63.00 mph, reported by official NWS obs.


            46 mph sustained





11/16/2009 0435 am

Garibaldi, Tillamook County.

Thunderstorm wind gust m63.00 mph, reported by official NWS obs.


            46 mph sustained




11/16/2009 0805 am

Cape Meares, Tillamook County.

Non-thunderstorm wind gust m62.00 mph, reported by mesonet.





11/16/2009 0806 am

10 miles S of Tillamook, Tillamook County.

Non-thunderstorm wind gust m63.00 mph, reported by mesonet.


            Recorded at Mt. Hebo




11/16/2009 0823 am

Rockaway Beach, Tillamook County.

Non-thunderstorm wind gust m64.00 mph, reported by mesonet.





11/16/2009 0836 am

Garibaldi, Tillamook County.

Non-thunderstorm wind gust m79.00 mph, reported by official NWS obs.


            Peak gust




11/16/2009 0900 am

Clatsop Spit, Clatsop County.

Non-thunderstorm wind gust m70.00 mph, reported by official NWS obs.


            Peak gust with sustained winds 55 mph




11/16/2009 0435 am

Garibaldi, Tillamook County.

Thunderstorm wind gust m63.00 mph, reported by official NWS obs.


            46 mph sustained




11/16/2009 0805 am

Cape Meares, Tillamook County.

Non-thunderstorm wind gust m62.00 mph, reported by mesonet.





11/16/2009 0806 am

10 miles S of Tillamook, Tillamook County.

Non-thunderstorm wind gust m63.00 mph, reported by mesonet.


            Recorded at Mt. Hebo




11/16/2009 0823 am

Rockaway Beach, Tillamook County.

Non-thunderstorm wind gust m64.00 mph, reported by mesonet.