Saturday, August19, 2017 L-36.com


Marine Weather and Tides
Felida, WA

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 6:15AMSunset 8:11PM Saturday August 19, 2017 11:41 AM PDT (18:41 UTC) Moonrise 2:48AMMoonset 5:57PM Illumination 7% Phase: Waning Crescent; Moon at 27 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
    EDIT      (on/off)   Help
PZZ210 Columbia River Bar- 851 Am Pdt Sat Aug 19 2017 Corrected Ebb Wording From Strong To Very Strong
In the main channel..Combined seas 3 to 5 ft through Sunday morning. However, seas will temporarily build to around 6 ft during the ebb around 345 pm this afternoon and to 7 to 8 ft during the very strong ebb around 415 am Sunday.
PZZ200 851 Am Pdt Sat Aug 19 2017
Synopsis for southern washington and northern oregon coast.. There will be little change in the marine weather through mid next week as high pressure persists over the ne pacific and a thermal trough remains across the southern oregon coast.

7 Day Forecast for Marine Location Near Felida, WA
   Hourly   EDIT   Help
location: 45.73, -122.75     debug


Area Discussion for - Portland, OR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kpqr 191645
afdpqr
area forecast discussion
national weather service portland or
944 am pdt Sat aug 19 2017

Synopsis A weak upper disturbance passed east of the pacific
northwest last night and early this morning increased the onshore
flow and morning low clouds some this morning. The onshore flow tend
to continue tonight and Sunday morning, more focused along the
columbia river and the north part of our forecast area. One last
upper disturbance will pass through Sunday afternoon and night and
maintain the onshore flow before an upper ridge builds in on Monday
and continues Tuesday for warmer temperatures. Low clouds will mainly
be along the south washington and north oregon coast Monday morning
and locally inland along the columbia river. The upper ridge will
reduce the onshore flow for Tuesday. A significant upper trough will
approach Wednesday with increased onshore flow and a bit of cooling,
then some chance of showers Wednesday night and Thursday. Another
upper ridge starts to build by the weekend for drying and warming.

Short term Today through Monday... An upper level disturbance from
overnight has moved east this morning. This increased the onshore
flow resulted in a decent area of morning low clouds that was focused
more along the west slopes of the cascades and foothills and backed
into the willamette valley and the i-5 corridor though southwest
washington. There was less over the coastal mountains and the coast.

These are clearing and will be mostly gone by afternoon except
perhaps a few lingering in southwest washington into the early
afternoon. After that, plenty of sunshine will be the rule with temps
near or just below seasonal normals today.

Some onshore flow will continue into Sunday and the models
concentrate any morning low clouds along the south washington and
north oregon coasts and across the southwest washington interior and
along the columbia river, with a focus near the higher terrain. After
that there should be plenty of sunshine again. Temps will be around
seasonal normals Sunday.

One last weak upper disturbance passes through the pacific northwest
Sunday afternoon and evening before an upper ridge off the coast
builds into the pacific northwest Monday and Tuesday. There is some
increase in the onshore flow again Sunday night in the wake of this
disturbance. The marine clouds will be shallow with the greatest
coverage along the south washington and north oregon coasts. Some
will extend inland along the columbia river through kelso and
possibly get close to kttd and even kpdx with brief ceilings possible
between 12z-15z. Believe these clouds in the portland metro area will
tend to break up before the eclipse progresses much. The rest of the
day will be sunny, and with the upper ridge building in we should see
inland temps warm considerably over those Sunday, possibly getting
close to 90 degrees. Tolleson

Long term Monday night through Friday... Tuesday will be another
warm day with decreased onshore flow due to the upper ridge Monday
continuing over the area Tuesday. Temps will be well above normal
especially inland, possibly close to 90. A decent late summer system
will approach Wednesday, possibly increasing the onshore flow some
with a bit of cooling, before the system moves through Wednesday
night and Thursday with plenty of clouds and some chance of showers.

Some lingering onshore flow will give way to more sunshine on Friday
as conditions begin to improve in the wake of the Thursday system.

Tolleson

Aviation Vfr conditions for the coast and most of the willamette
valley this morning with areas of MVFR CIGS over the coast range and
the cascades. Keug may see an hour or two of MVFR CIGS briefly this
morning. These clouds should clear this afternoon. North winds will
gust this afternoon with the strongest gusts along the central oregon
coast (~25kt) impacting konp, and florence. Gusty n-nw winds are
expected for most inland areas this afternoon with gusts in the
willamette alley around 20 kt. MVFR stratus will return to the coast
this evening and push inland along the lower columbia river late
tonight possibly impacting kkls and kspb. The stratus will likely
expand into the north willamette valley and the south washington
cascade foothills early Sunday morning.

Kpdx and approaches...VFR with clear skies today. N-nw winds will
increase in the afternoon with gusts up to 20 kt possible. MVFR
stratus are expected early Sunday morning around 6 am (13z). ~tj

Marine A persistent weather pattern will result in little change
in the marine weather the next several days. High pressure holds over
the NE pacific while a thermal trough is along the south oregon
coast. This supports north winds across the south washington and
north oregon waters. The thermal trough strengthens each afternoon
such that the north winds will increase and become gusty each
afternoon. The winds south of cascade head will have frequent gusts
to around 25 kt which supports the current small craft advisory for
winds. This advisory will likely be extended in time with the
afternoon forecast package.

The seas will be locally generated from these winds and generally
remain 4 to 6 ft with periods at 9 to 10 seconds. The seas will be
choppier in the southern waters for the afternoons with dominant
periods possibly around 8 seconds. ~tj

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds until 5 am pdt Sunday for
coastal waters from cascade head or to florence or out 60
nm.

Interact with us via social media:


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LOPW1 - 9440422 - Longview, WA 28 mi42 min 70°F1023.6 hPa (+0.0)
TLBO3 - 9437540 - Garibaldi, Tillamook Bay, OR 63 mi42 min 51°F1023.8 hPa (+0.0)
ASTO3 - 9439040 - Astoria, OR 63 mi42 min NNW 7 G 9.9 62°F 71°F1023.6 hPa (+0.3)

Wind History for Longview, WA
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Scappoose Industrial Airpark, OR7 mi49 minN 410.00 miFair68°F51°F55%1022.5 hPa
Pearson Airfield, WA9 mi49 minVar 310.00 miPartly Cloudy67°F53°F61%1022.7 hPa
Portland, Portland International Airport, OR11 mi49 minWNW 710.00 miMostly Cloudy66°F51°F59%1022.8 hPa
Portland-Hillsboro Airport, OR17 mi49 minVar 310.00 miA Few Clouds66°F50°F56%1022.5 hPa
Portland, Portland-Troutdale Airport, OR22 mi49 minVar 410.00 miFair68°F51°F55%1022.6 hPa

Wind History from SPB (wind in knots)
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
Last 24hr4455
G15
W10N12
G20
N8N10NW11N6N6NW7N5N433CalmNW34NE3N66N8N4
1 day agoN66E8E8NE7N7N10N8N8N7N5N6N5N6NE3CalmN3N3NW3N5N5N6NE5N5
2 days ago4--6E7E55NW9NW6NW8NW86N7N53NW3NW7NW6NW3CalmCalmN43N4N6

Tide / Current Tables for Knapp Landing, Washington - IGNORE HEIGHTS
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Knapp Landing
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

Sat -- 03:44 AM PDT     8.65 feet High Tide
Sat -- 03:48 AM PDT     Moonrise
Sat -- 06:16 AM PDT     Sunrise
Sat -- 12:56 PM PDT     -1.11 feet Low Tide
Sat -- 05:13 PM PDT     7.13 feet High Tide
Sat -- 06:57 PM PDT     Moonset
Sat -- 08:11 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.33.76.18.18.68.27.25.84.22.71.2-0-0.8-1.10.12.75.57.176.45.54.53.52.6

Tide / Current Tables for Kelley Point, Oregon - IGNORE HEIGHTS
   EDIT      (on/off)   Help   One Week of Data
Kelley Point
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

Sat -- 12:33 AM PDT     2.23 feet Low Tide
Sat -- 03:48 AM PDT     Moonrise
Sat -- 04:44 AM PDT     8.65 feet High Tide
Sat -- 06:16 AM PDT     Sunrise
Sat -- 01:44 PM PDT     -1.11 feet Low Tide
Sat -- 06:13 PM PDT     7.13 feet High Tide
Sat -- 06:57 PM PDT     Moonset
Sat -- 08:11 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.446.38.18.68.17.15.74.12.51-0.2-0.9-10.435.67.176.35.44.43.3

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Portland, OR (14,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Portland, OR
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.