Wednesday, August16, 2017 L-36.com


Marine Weather and Tides
South Bend, 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 6:14AMSunset 8:24PM Wednesday August 16, 2017 8:23 AM PDT (15:23 UTC) Moonrise 12:00AMMoonset 3:11PM Illumination 31% Phase: Waning Crescent; Moon at 24 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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PZZ110 Grays harbor bar- 241 am pdt Wed aug 16 2017 combined seas 4 to 6 ft. Bar conditions light. The maximum ebb currents will occur around 1215 pm this afternoon and 100 am Thursday morning. PZZ100 241 Am Pdt Wed Aug 16 2017
Synopsis for the northern and central washington coastal and inland waters.high pressure offshore and lower pressure east of the cascades will produce varying degrees of onshore flow through the weekend.

7 Day Forecast for Marine Location Near South Bend, WA
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location: 46.69, -123.82     debug


Area Discussion for - Portland, OR
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Fxus66 kpqr 161002
afdpqr
area forecast discussion
national weather service portland or
302 am pdt Wed aug 16 2017

Synopsis Northwest flow aloft will maintain onshore low level flow
across the region through the week that will keep temperatures near
seasonal normals. High pressure aloft strengthens over the weekend
for continuing dry weather. The region will remain in between two
upper level low pressure systems, one dropping south from the gulf of
alaska and a cut-off low off california. This will maintain
seasonable temperatures with typical morning clouds and afternoon
sunshine.

Short term Today through Friday... Very similar weather to Tuesday
is expected today. Some details are different though. Shallow
marine stratus filling in on the washington coast will work its way
south along the coast this morning. Does not appear it will make it
very far inland today. A weak tough rotating through the high pres
offshore will bring a deeper marine layer tonight. Models have been
advertising this feature fairly consistently so there should be more
clouds at the coast tonight and inland Thursday morning. The flat
ridging and associated subsidence should result in clearing Thursday
afternoon with temps inland a bit below today expected high temps.

On Friday there should be less low cloud coverage inland than there
was on Friday, with the best chance in the north along the columbia
river. There is a short wave moving through that will be increasing
the westerly onshore flow and the westerly flow aloft through the
day, keeping temperatures in check despite a decent amount of
sunshine, and setting the stage for increased low clouds coverage
Saturday morning much like on Thursday morning. Mh tolleson

Long term No changes. Previous discussion follows...

Friday night through Tuesday... Models remain in fairly good agreement
for the weekend. An upper level trough approaches the region, and an
upper low cuts off from the flow off of northern california as it
rounds the broad high pressure over the eastern pacific with the
upper ridge axis centered near 140w. This will leave the region under
diffluent flow aloft and weak onshore flow at low levels after
increased low clouds coverage Saturday morning. Continue to maintain
a dry forecast for Sunday through Tuesday with some overnight morning
cloud cover. Embedded shortwave impulses ahead of the primary upper
trough may either increase cloud coverage, depending on their timing
and at this lead time confidence in the precise cloud cover remains
low to moderate. That said, there does seem a notable trend towards
at least somewhat favorable eclipse viewing conditions. The key area
of lower confidence at this point is just how thick and widespread
any morning clouds will be. Confidence will hopefully increase in the
next several days, and with all eyes focused on Monday's eclipse,
continue to monitor the latest forecast with the expectation that
some changes will be made as the forecast is refined over the coming
days. cullen

Aviation Marine stratus will bring a period of ifr to low-end
MVFR CIGS to portions of the coast north of ktmk. The stratus
will likely linger along the north coast today, but should lift
toVFR this afternoon. Based on recent trends, don't think the
stratus will bring reduced CIGS to the central coast. Instead,
expect conditions similar to yesterday with MVFR vsbys due to
patchy fog this morning andVFR conditions this afternoon.

The interior will remain predominatelyVFR today and tonight,
with patchy stratus possible between 12-18z. Don't think the
stratus will bring reduced CIGS to interior TAF sites this
morning.

Kpdx and approaches...VFR the next 24 hours with patchy stratus
possible between 12-16z this morning. 64

Marine High pres will remain anchored over the coastal waters
through the weekend, with thermal low pres over northern ca and
southern or. This will keep the summer-time northerlies in place,
with breezy winds developing during the afternoon evening hours
over the next several days, especially south of newport. A sca
for winds is in effect this afternoon evening for the central or
waters. Expect additional SCA for winds through the weekend.

Seas will generally be around 5 to 7 ft through the period, but
may build to around 8 ft at times as the winds increase. Seas may
also become steep at times during the afternoon evening hours.

64

Pqr watches warnings advisories
Or... None.

Wa... None.

Pz... Small craft advisory for winds from 3 pm this afternoon to
10 pm pdt this evening for coastal waters from cascade
head or to florence or out 60 nm.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TOKW1 - 9440910 - Toke Point, WA 8 mi54 min NNW 7 G 8.9 60°F 63°F1020 hPa
WPTW1 - 9441102 - Westport, WA 21 mi54 min NNW 8.9 G 13 58°F 60°F1019.8 hPa
46211 - Grays Harbor, WA (036) 25 mi54 min 57°F5 ft
ASTO3 - 9439040 - Astoria, OR 33 mi54 min NNW 8 G 11 61°F 72°F1019.7 hPa
46243 - Clatsop Spit, OR - 162 37 mi54 min 57°F5 ft
46096 39 mi174 min N 5.8 G 5.8 52°F 55°F1019.8 hPa

Wind History for Toke Point, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA22 mi31 minN 07.00 miOvercast57°F55°F96%1020.4 hPa

Wind History from HQM (wind in knots)
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Last 24hrCalmW5S7--W10W13W11W13W9W12
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W14W6W8W4W5W5W4CalmSW33SW3CalmCalmCalm
1 day agoW3W44S9SW12SW12W11W13W12W14W10W5NW6CalmCalmCalmCalmCalmNE4CalmCalmCalmNE3NE3
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Tide / Current Tables for Mailboat Slough, Willapa River, Willapa Bay, Washington
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Mailboat Slough
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Wed -- 12:59 AM PDT     Moonrise
Wed -- 02:59 AM PDT     0.35 feet Low Tide
Wed -- 06:14 AM PDT     Sunrise
Wed -- 09:23 AM PDT     6.50 feet High Tide
Wed -- 02:41 PM PDT     2.73 feet Low Tide
Wed -- 04:11 PM PDT     Moonset
Wed -- 08:22 PM PDT     Sunset
Wed -- 09:06 PM PDT     9.30 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.82.10.80.30.81.93.34.75.86.46.45.74.63.62.92.83.44.76.27.78.89.38.97.7

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Wed -- 01:00 AM PDT     Moonrise
Wed -- 03:18 AM PDT     0.00 knots Slack
Wed -- 06:15 AM PDT     Sunrise
Wed -- 06:16 AM PDT     1.49 knots Max Flood
Wed -- 09:18 AM PDT     -0.00 knots Slack
Wed -- 12:20 PM PDT     -1.79 knots Max Ebb
Wed -- 02:56 PM PDT     0.00 knots Slack
Wed -- 04:13 PM PDT     Moonset
Wed -- 05:48 PM PDT     1.75 knots Max Flood
Wed -- 08:24 PM PDT     Sunset
Wed -- 09:11 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-3.1-2.7-1.6-0.40.71.31.51.41.20.3-0.7-1.5-1.8-1.7-10.111.61.71.51.10.2-1.1-2.3

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 (11,2,3,4)
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Ground Weather Radar Station Portland, OR
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weather_mapweather_map weather_map

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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.