Tuesday, June27, 2017 L-36.com


Marine Weather and Tides
Skamokawa Valley, 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 5:21AMSunset 9:09PM Tuesday June 27, 2017 7:08 PM PDT (02:08 UTC) Moonrise 8:45AMMoonset 10:56PM Illumination 16% Phase: Waxing Crescent; Moon at 4 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- 229 Pm Pdt Tue Jun 27 2017
.small craft advisory for rough columbia river bar in effect Wednesday morning...
In the main channel..Combined seas 3 to 5 feet through Wednesday. However, seas will temporarily build to 7 ft during the ebb around 845 pm tonight and to 8 ft with breakers likely during the strong ebb around 845 am Wednesday.
PZZ200 229 Pm Pdt Tue Jun 27 2017
Synopsis for southern washington and northern oregon coast.. High pressure persists over the ne pacific through the weekend as a thermal low remains over northern california. Surface high pressure increases a little on Sunday for a stronger north surface pressure gradient. The seas near shore (0 to 5 nm) will likely be choppy Wednesday morning with the strong ebb.

7 Day Forecast for Marine Location Near Skamokawa Valley, WA
   Hourly   EDIT   Help
location: 46.27, -123.45     debug


Area Discussion for - Portland, OR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kpqr 272048 aaa
afdpqr
area forecast discussion
national weather service portland or
145 pm pdt Tue jun 27 2017

Synopsis Dry, onshore flow continues through the forecast period.

An upper ridge will traverse the area Thursday and Friday, bringing
mostly clear skies and slightly warmer temperatures. Otherwise, the
seasonable pattern of morning clouds and afternoon Sun continues
through the weekend.

Short term Tonight through Saturday... An upper ridge near 135w
keeps northwest flow over the region through Wednesday. A weak but
dry shortwave in the northwest flow moves over the area early
tomorrow, so expecting another robust marine layer in the morning.

The upper ridge will move closer to shore later Wednesday and
Thursday, and traverse western or wa Friday morning. While offshore
flow never develops, the marine layer should be considerably more
shallow both Thursday and Friday, for mostly sunny skies and
seasonably warm temperatures. Saturday sees the ridge flatten and
move eastward, bringing a benign westerly flow and thickening marine
layer, for morning clouds followed by afternoon sun. Drb

Long term Saturday night through Tuesday... Westerly flow continues
through the extended period. A couple of embedded, low amplitude
ridge trough systems pass mostly to the north of area, with GFS gefs
timing favoring weak shortwaves late Saturday and again on Monday.

The main result will be a thickening marine layer over the weekend
and particularly on Monday. Depending on the strength of these
shortwaves, some drizzle very light precipitation along coastal zones
is not out of the question. That said, the odds favor a dry forecast
with many dry ensemble members through the period. Temperatures
should be close to seasonal normals this weekend, and near or
slightly below normal early next week. Drb

Aviation Marine stratus has lifted or cleared in most areas
forVFR conditions this afternoon. MVFR CIGS will clear south of
ksle by 22z. The coast has a mix ofVFR and MVFR early this
afternoon, and will become solid MVFR early this evening. Cigs
may lower to below 1000 feet along the coast tonight. A
shortwave upper trough moving over the area tonight will maintain
a deep marine layer and expect coastal stratus to move inland
into the willamette valley and cascade foothills early Wednesday
morning (~12z). Inland areas should clear toVFR Wednesday
afternoon.

Kpdx and approaches...VFR conditions this afternoon evening.

Marine stratus will return MVFR CIGS very early Wednesday morning
(11-13z), and clear toVFR Wednesday afternoon. ~tj

Marine A persistent surface pressure pattern with high
pressure over the NE pacific and a thermal low in northern ca
will result in little changes to the overall marine weather for
through the weekend. N-nw winds will mostly remain below 25 kt,
although there will be a few gusts around 25 kt in the waters
beyond 20 nm this afternoon and evening. Surface high pressure
increases a tad on Sunday and the north winds will likely
strengthen to 25 kt, especially south of cascade head.

A combination of wind wave and fresh swell will create choppy
seas with heights 5 to 8 feet and dominant periods around 8
seconds today and Wednesday. A strong ebb Wednesday morning may
steepen the seas nearshore (0-5 nm) a few hours around the 845 am
ebb. A weak low moving across the gulf of alaska Wednesday night
and Thursday will increase wave periods to around 10-11 seconds
beginning early Thursday. ~tj

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for rough columbia river bar from 8 am to
11 am pdt Wednesday.

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
ASTO3 - 9439040 - Astoria, OR 17 mi68 min ENE 1 G 4.1 63°F 66°F1016.8 hPa (-0.6)
LOPW1 - 9440422 - Longview, WA 29 mi68 min 64°F1015 hPa (-1.1)
46243 - Clatsop Spit, OR - 162 36 mi68 min 60°F5 ft
46096 37 mi98 min WNW 12 G 14 55°F 57°F1017.8 hPa
TOKW1 - 9440910 - Toke Point, WA 41 mi68 min WSW 8.9 G 12 60°F 59°F1017.1 hPa (-0.5)

Wind History for Astoria, OR
(wind in knots)    EDIT      (on/off)   Help
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
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
Last
24hr
NW6
NW8
NW4
G9
SW1
G5
NW8
G11
NW8
NW8
G11
NW7
G11
NW3
G7
NW7
NW6
NW5
G8
NW3
SE2
SW6
SW5
SW3
G6
W1
W2
G5
NE1
G5
NW1
NW2
G5
NE2
G6
NE1
G4
1 day
ago
SW7
G13
SW7
G12
SW7
G12
SW9
G12
SW7
SW5
G9
SW6
G10
S6
SE2
S2
G5
S4
S2
SW3
SW7
SW6
W4
G8
NW6
W1
G4
W1
G4
N1
NW1
G4
NE2
G7
NE2
G5
NW4
2 days
ago
S2
E1
G4
SE1
SE2
SE4
SE7
SE3
SE7
SE6
SE3
G6
SE3
G6
SE3
G6
N2
SW2
W2
G5
W3
G8
W2
G7
N1
G5
E2
G8
E2
G6
NE3
G6
NE2
G7
N2
G9
W3
G8

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR24 mi73 minW 810.00 miMostly Cloudy63°F52°F68%1017 hPa

Wind History from AST (wind in knots)
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
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
Last 24hrW6W6W6W5W4W4W5CalmW3CalmCalmS3SW3SW3SW5W5W5SW6W8W5W10W11W8W9
1 day agoSW8S7SW9S4SW5SW7S4S4S3SW6SW5SW5SW7SW7SW3W4W8NW11W10N12W13NW8NW9NW7
2 days agoNW7NE7E7E7CalmSE4E4CalmW6W8SW7W5SW8SW12SW11
G19
SW13SW9W15
G18
W13
G18
W13W13SW9SW11SW7

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

Tue -- 12:04 AM PDT     2.14 feet Low Tide
Tue -- 04:59 AM PDT     8.99 feet High Tide
Tue -- 05:24 AM PDT     Sunrise
Tue -- 09:45 AM PDT     Moonrise
Tue -- 12:48 PM PDT     -1.27 feet Low Tide
Tue -- 06:28 PM PDT     8.03 feet High Tide
Tue -- 09:09 PM PDT     Sunset
Tue -- 11:56 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.12.84.56.78.498.67.35.53.51.60-1-1.2-0.21.94.46.67.97.97.264.63.4

Tide / Current Tables for Cathlamet, Washington - IGNORE HEIGHTS
   EDIT      (on/off)   Help   One Week of Data
Cathlamet
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

Tue -- 12:34 AM PDT     2.14 feet Low Tide
Tue -- 05:18 AM PDT     8.99 feet High Tide
Tue -- 05:24 AM PDT     Sunrise
Tue -- 09:45 AM PDT     Moonrise
Tue -- 01:18 PM PDT     -1.27 feet Low Tide
Tue -- 06:47 PM PDT     8.03 feet High Tide
Tue -- 09:09 PM PDT     Sunset
Tue -- 11:55 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.33.65.87.88.98.87.86.24.32.40.7-0.6-1.2-0.90.93.45.87.687.56.55.23.9

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 (22,6,7,8)
      (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.