Monday, November20, 2017 L-36.com


Marine Weather and Tides
Rainier, OR

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 7:18AMSunset 4:36PM Sunday November 19, 2017 10:03 PM PST (06:03 UTC) Moonrise 8:12AMMoonset 5:53PM Illumination 2% Phase: Waxing Crescent; Moon at 1 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ210 Columbia River Bar- 835 Pm Pst Sun Nov 19 2017
.small craft advisory for rough columbia river bar in effect through Monday morning...
In the main channel..Combined seas 14 to 17 ft, but easing to near 10 ft late tonight and then 6 to 8 ft by Mon afternoon. However, seas will temporarily build to near 14 ft with breakers during the ebb around 530 am Monday. Seas to 9 ft with breakers likely can be expected during the strong ebb around 545 pm Mon.
PZZ200 835 Pm Pst Sun Nov 19 2017
Synopsis for southern washington and northern oregon coast.. A strong front will bring gale force wind to the waters through tonight as it drops southeastward. A coastal jet could locally enhance winds within 20 nm of the coast. This front will stall near the south oregon coast Monday and then lift back northward Tuesday for another round of gale force wind.

7 Day Forecast for Marine Location Near Rainier, OR
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location: 46.1, -122.95     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 200440
afdpqr
area forecast discussion
national weather service portland or
840 pm pst Sun nov 19 2017

Synopsis Wet and unsettled weather this week. A cold front will
move across the area tonight and Monday. The front then lifts back
north across the forecast area as a warm front Monday night and
Tuesday with a cold front pushing through Tuesday night and
Wednesday. Another cold front will move through on thanksgiving with
showers lingering into Friday. Another front is expected for the
weekend.

Short term Tonight through Wednesday... A cold front is just
offshore washington and oregon. Rain ahead of the front has reached
sw washington, and the north oregon coast and coastal mountains, and
is just reaching the north willamette valley. The rain will spread
inland and south tonight with widespread rain across the area Monday
morning. Cold air over the south washington cascades will maintain
snow levels around 4000 feet and will make no changes to the current
winter weather warning. The snow levels for the oregon cascades are
above 5000 feet and rising. The snow levels for the washington
cascades should rise above 5000 feet Monday morning.

Winds will increase along the coast and coast range the next few
hours as the front nears and will maintain the current wind
headlines. One exception is along the south washington coast where
the winds are peaking right now. The surface pressure gradient will
soon weaken along the washington coast as the surface low moves over
it. Therefore, I will let the high wind warning for the washington
beaches and headlines expire at 9 pm. ~tj
the rest of the discussion is from the previous issuance (204
pm)... The leftover front across the southern part of our forecast
area Monday afternoon continues to be forecast to lift north across
the forecast area Monday night and Tuesday for more rain. We will
likely see some east wind develop through the gorge and in the
portland and vancouver metro areas Monday night and Tuesday as the
main low with this warm front will be developing offshore and a bit
outside 130w. Snow levels will remain rather high in the cascades as
well.

At this point, south of this warm front another frontal boundary
extends southwestward and there is a wave that moves north along this
boundary near our coast Tuesday night into Wednesday that keeps some
rain going on.

Total rainfall amounts through Tuesday could reach 3-5 inches at the
coast and in the cascades, and 0.50-1.5 inches in the valleys. Totals
through Wednesday could reach 4-7 inches at the coast and the
mountains and 0.67-1.75 in the valleys. The rainfall is not expected
to cause flooding other than some possible localized urban flooding
should leaves clog storm drains, though area rivers and streams will
likely see some sharp rises this week. Tolleson

Long term Wednesday night through Sunday. Expect steady rain
across the region during any pre-holiday travel. For thanksgiving, a
front crossing the area will bring rain to southwest washington and
northwest oregon, but expect temperatures to be several degrees above
seasonal normals, with afternoon highs in the mid to upper 50s. Snow
levels look to remain well above the cascade passes. There might be a
slight break in precipitation at the start of next weekend, but it's
looking more unlikely as a new system enters into the area during the
weekend. Bishop tolleson

Aviation Frontal boundary along the S washington and extreme n
oregon coast at 04z. Generally MVFR conditions along the coast
andVFR inland. Conditions expected to deteriorate from northwest
to southeast after 06z. Should see predominant ifr to MVFR by 12z
as the more stable stratiform precip intensifies. Model soundings
suggest better mixing after 18z Mon for improvement to an MVFR to
vfr mix. Cascades and higher terrain become frequently obscured
overnight.

Kpdx and approaches...VFR at the terminal and vicinity at 04z,
but flight conditions will worsen by 08z. Expecting predominant
MVFR after 08z with the potential for ifr 12z-18z. Low-level
instability after 18z will help to improve flight conditions to
an MVFR toVFR mix. Weishaar

Marine Solid gale force wind speeds noted at the buoys as of
03z. It appears the front was close to buoy 089 just before 04z.

It appears the 00z NAM and GFS may be a little too strong with
the forecast boundary wind speeds at 06z. Strongest wind for the
north waters will persist through around 08z, diminishing from
north to south fairly quickly. Did extend the gales for the north
waters through at least 10z to cover the far south portions. Gale
force wind speeds hold on longer over pzz255 and pzz275 and have
extended those gales to 14z. There is the potential for a few
gusts to 50 kt within 20 nm of the coast due to coastal jet
enhancement, but think this threat should be short enough in
duration to keep the gale warning intact for now.

Wind speeds fall below small craft advisory levels Mon morning as
the frontal boundary stalls over the S oregon waters. However,
wind speeds increase again over the south waters Mon evening as
the aforementioned boundary lifts north as a warm front. Gale
force wind speeds develop over pzz255 and pzz275 06z-09z tue.

Eventually the gale force speeds reach the north waters late mon
night or Tue morning.

Combined seas have reached 21 ft at buoy 029 as of 04z, which is
about 4 ft higher than the 12 hr enp forecast. Have indicated
peak seas of 21 ft, easing to around 15 ft over the north waters
by 12z. Seas forecast to drop below 10 ft towards midday Monday.

Seas climb back well into the teens Tue and look to remain at
that level through thanksgiving. Weishaar

Pqr watches warnings advisories
Or... High wind warning until 1 am pst Monday for coast range of
northwest oregon-north oregon coast.

High wind warning until 3 am pst Monday for central oregon
coast.

Wa... High wind warning until 9 pm pst this evening for south
washington coast.

High wind warning until 1 am pst Monday for willapa hills.

Winter storm warning until 6 am pst Monday for south washington
cascades.

Pz... Gale warning until 2 am pst Monday for coastal waters from cape
shoalwater wa to cascade head or out 60 nm.

Gale warning until 6 am pst Monday for coastal waters from
cascade head or to florence or out 60 nm.

Small craft advisory for rough columbia river bar until 9 am
pst Monday.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 0 mi46 min 49°F1005.4 hPa
ASTO3 - 9439040 - Astoria, OR 44 mi46 min S 15 G 25 50°F 50°F1002.1 hPa
46243 - Clatsop Spit, OR - 162 63 mi34 min 52°F20 ft

Wind History for Longview, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Southwest Washington Regional Airport, WA3 mi68 minSSE 12 G 2110.00 miLight Rain47°F41°F80%1006.4 hPa
Scappoose Industrial Airpark, OR23 mi71 minESE 108.00 miLight Rain45°F41°F86%1006.7 hPa

Wind History from KLS (wind in knots)
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1 day agoSE3SE5SE6SE6SE4SE7CalmE3SE4SE4CalmCalmS3S5S3SE5S7SE8S5CalmCalmCalmS4SE7
2 days agoS4S7SE5S4SE4SE9SE5CalmS6SE6S6SE9S5SE5S7S4S6SE7S5SE3SE4SE3SE4SE5

Tide / Current Tables for Longview, Washington - IGNORE HEIGHTS
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Longview
Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the

Mon -- 12:33 AM PST     -0.35 feet Low Tide
Mon -- 05:06 AM PST     7.69 feet High Tide
Mon -- 07:20 AM PST     Sunrise
Mon -- 09:07 AM PST     Moonrise
Mon -- 12:21 PM PST     2.92 feet Low Tide
Mon -- 04:14 PM PST     8.91 feet High Tide
Mon -- 04:34 PM PST     Sunset
Mon -- 06:33 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.3-0.21.64.26.67.77.56.85.94.943.333.35.27.68.88.786.75.23.62.11

Tide / Current Tables for Kalama, Washington - IGNORE HEIGHTS
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Kalama
Click for MapNote: The Columbia River is subject to annual freshets. Short range predictions are available at local river forecast centers. The data for stations above Harrington Point apply only during low river stages. There is a tidal influence along most of the

Mon -- 01:14 AM PST     -0.35 feet Low Tide
Mon -- 05:33 AM PST     7.69 feet High Tide
Mon -- 07:19 AM PST     Sunrise
Mon -- 09:06 AM PST     Moonrise
Mon -- 01:02 PM PST     2.92 feet Low Tide
Mon -- 04:34 PM PST     Sunset
Mon -- 04:41 PM PST     8.91 feet High Tide
Mon -- 06:33 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.1-0.30.32.65.47.47.67.26.45.44.53.73.22.93.96.38.48.98.47.464.531.7

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Portland, OR (1,6,7,8)
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Ground Weather Radar Station Portland, OR
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Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.