Sunday, August20, 2017 L-36.com


Marine Weather and Tides
Puget Island, 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 6:17AMSunset 8:12PM Sunday August 20, 2017 5:53 PM PDT (00:53 UTC) Moonrise 3:59AMMoonset 6:44PM Illumination 2% Phase: Waning Crescent; Moon at 28 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- 220 Pm Pdt Sun Aug 20 2017
.small craft advisory for rough columbia river bar in effect from late tonight through Monday morning...
In the main channel..Combined seas 2 to 4 ft this afternoon, increasing to 3 to 5 ft today and Monday. However, seas will temporarily build to around 6 ft during the ebb around 445 pm Sunday afternoon and to 7 ft with breakers likely during the very strong ebb around 5 am Monday morning.
PZZ200 220 Pm Pdt Sun Aug 20 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 Puget Island, WA
   Hourly   EDIT   Help
location: 46.16, -123.41     debug


Area Discussion for - Portland, OR
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kpqr 202142 cca
afdpqr
area forecast discussion
national weather service portland or
236 pm pdt Sun aug 20 2017
corrected typo in aviation section

Synopsis Onshore flow will produce varying degrees of morning
clouds, afternoon sunshine. With inland temperatures in the 70s and
80s for much of the next week. Monday and Tuesday will likely be the
warmest days as a flat upper ridge moves through. A weak system will
bring significant cooling to the forecast area late Wednesday and
Thursday, as well as more clouds and a few light showers to the
forecast area Wednesday night and Thursday. Expect drying as
temperatures warm back to above seasonal normals levels next weekend.

Short term Tonight through Wednesday... Other than some passing
higher clouds from a weak system passing by to our north, skies were
sunny over most of southwest washington and northwest oregon this
afternoon. Low clouds are consolidating along the south washington
and north oregon coasts this afternoon, largely due to the system
passing by to our north. Temperatures today are still on track to be
near or just above seasonal normals, with 80 to 85 common inland from
vancouver southward.

As mentioned above, low clouds are solidifying off the coast this
afternoon and these will definitely push onto the south washington
and north oregon coasts tonight. The surface pressure pattern
suggests they may be less solid on the central coast around newport
tonight, but viewing of the eclipse from newport could be a little
iffy Monday morning. The low clouds will likely push inland along the
columbia river later tonight and early on Monday to kelso with some
clouds trying to reach the vancouver and portland areas. Believe the
clouds in the vancouver and portland area will mainly be scattered
before mostly clearing before the main part of the eclipse, though a
brief ceiling is possible near kttd Monday morning. Farther southward
in the willamette valley conditions will stay mostly clear for the
eclipse on Monday morning. Some smoke from fires in the oregon
cascades could drift west on Monday but this will be slow to occur
and probably not affect eclipse viewing.

Otherwise Monday afternoon will be sunny as the morning clouds clear
to a little ways off the coast under a building upper ridge. The air
mass will be warming, and coastal temperatures could reach the lower
70s in areas, with upper 80s and lowers 90s common inland except mid
80s near kelso.

The upper ridge starts to move off to the east Tuesday, but it is
still close enough for another warm day inland Tuesday with
temperatures in the mid 80s to around 90. We don't expect much in the
way of lower clouds inland on Tuesday, though the coast will see
increasing lower clouds that may persist or hug the coastline much of
the day.

Southwest flow aloft will continue to increase Tuesday night and
Wednesday as the upper ridge continues moving eastward and the next
system approaches. This will mean persistent cloud cover at the
coast, perhaps even some spotty drizzle, and more morning low clouds
inland with resultant cooler temps. Temperatures inland will likely
be close to or a bit below seasonal normals Wednesday.

Some convection late Tuesday spreading north from a weak low over
california might clip the willamette pass area, but southwest flow
aloft will limit any coverage and how far north it can reach in our
cascades as it mainly spreads into central and eastern oregon. The
approach of the system Wednesday is making any chance of convection
in that area looking less likely as the southwest flow aloft and the
low level onshore flow increases. Tolleson

Long term Wednesday night through Sunday... Models are in good
agreement a shortwave trough will slide eastward across british
columbia and washington Wednesday night and Thursday. This should
bring cooler temperatures, increased cloud cover and a chance of
light rain, particularly along the coast and across the cascade
foothills, but even portions of the willamette valley could see some
light rain. Shortwave ridging should then build over the pacific
northwest and bring a return to more sunshine and above average
temperatures towards next weekend. Neuman tolleson

Aviation Vfr conditions remain at the coast and inland this
afternoon. Expect a layer of marine stratus to move into the north
coast this evening around 03-04z with MVFR cigs. Farther down the
coast, expect some stratus to move in early morning around 10-12z,
perhaps with broken ifr CIGS for a few hours. Winds remain northerly
on the central coast tonight then becomes a little north-northeast
toward morning. Thus, confidence is not high in the amount of marine
stratus on central coast. Current forecast is for broken ifr cigs,
11z-16z. Also expect some marine stratus to move up the columbia
river to around kelso early Mon morning. There might get some clouds
near kpdx around sunrise, but likely just scattered for a couple of
hours, 12-16z time frame.

Kpdx and approaches...VFR conditions tonight and Monday. Marine
stratus will push part way up the columbia river tonight to around
kls with MVFR or even ifr cigs. May get some low clouds near kpdx,
but likely just a scattered layer for a couple of hours, 12-16z time
frame.

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 builds 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.

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. Tw

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds until 11 pm pdt Monday for
coastal waters from cascade head or to florence or out 60
nm.

Small craft advisory for rough columbia river bar from 3 am to
7 am pdt Monday.

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 19 mi54 min NNW 14 G 16 67°F 68°F1019.7 hPa (-0.5)
LOPW1 - 9440422 - Longview, WA 24 mi54 min 71°F1018 hPa (-1.3)
46096 38 mi144 min NNW 12 G 14 55°F 60°F1021.7 hPa
46243 - Clatsop Spit, OR - 162 38 mi54 min 57°F4 ft
TOKW1 - 9440910 - Toke Point, WA 48 mi54 min NNW 14 G 17 66°F 63°F1020.6 hPa (-0.7)

Wind History for Astoria, OR
(wind in knots)    EDIT      (on/off)   Help
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
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
Last
24hr
NW13
G17
NW11
G15
NW12
G19
N16
NW11
G15
NW9
G12
SW7
E4
N9
N9
NE2
G8
SE1
N11
G14
N10
G14
S3
SW5
N10
G13
W3
SW4
SW11
W11
W7
W6
G9
N14
1 day
ago
W12
W11
G14
NW6
G10
W10
NW9
NW8
G11
NW6
G9
NW7
G10
NW3
NW2
G6
N4
NW7
G10
NW6
G11
NW10
G13
N10
G13
N11
G14
W3
G6
N7
G10
NW4
G7
W5
W11
W8
G11
NW10
G13
N14
G18
2 days
ago
NW6
NW9
NW11
NW11
G15
NW9
G13
NW7
G11
NW7
G12
NW7
G11
N7
NE1
G5
NW6
NW6
G9
N9
N7
G10
N7
NW4
S3
SW3
W2
W7
W10
W12
G15
W11
W13

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Astoria, Astoria Regional Airport, OR25 mi59 minNNW 1410.00 miFair68°F57°F70%1020 hPa

Wind History from AST (wind in knots)
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
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
Last 24hrNW12
G21
NW11
G20
NW15
G21
N13NW12NW10NW10NW9NW11N12
G16
N7
G14
NE3E3SE4CalmCalmNW14NW11NW11NW13NW15NW17NW15NW14
1 day agoNW9NW9W6W5NW12NW12NW11NW8NW9NW11NW11NW8N11
G16
NW6NW9N11N11NW9NW12NW13NW16NW15NW15
G22
NW15
2 days agoNW10NW13NW13NW10N12
G16
NW7NW6N7CalmSE3SE3CalmSE3CalmCalmCalmCalmE3N7N9NW7W7NW7W8

Tide / Current Tables for Wauna, Columbia River, Oregon
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Wauna
Click for Map
Sun -- 01:17 AM PDT     7.63 feet High Tide
Sun -- 04:59 AM PDT     Moonrise
Sun -- 06:19 AM PDT     Sunrise
Sun -- 09:07 AM PDT     -0.86 feet Low Tide
Sun -- 02:26 PM PDT     6.72 feet High Tide
Sun -- 07:44 PM PDT     Moonset
Sun -- 08:13 PM PDT     Sunset
Sun -- 08:52 PM PDT     1.23 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.87.67.46.34.93.62.31.1-0.2-0.9-0.41.33.45.56.66.65.64.53.32.31.51.21.93.5

Tide / Current Tables for Skamokawa, Steamboat Slough, Columbia River, Washington
   EDIT      (on/off)   Help   One Week of Data
Skamokawa
Click for Map
Sun -- 01:00 AM PDT     8.22 feet High Tide
Sun -- 04:59 AM PDT     Moonrise
Sun -- 06:19 AM PDT     Sunrise
Sun -- 08:42 AM PDT     -0.88 feet Low Tide
Sun -- 02:12 PM PDT     7.16 feet High Tide
Sun -- 07:44 PM PDT     Moonset
Sun -- 08:13 PM PDT     Sunset
Sun -- 08:31 PM PDT     1.45 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
7.78.27.76.553.52.10.6-0.6-0.80.22.24.46.37.16.85.84.63.42.31.61.62.74.5

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 (20,4,5,8)
      (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.