Thursday, November15, 2018 L-36.com


Marine Weather and Tides
Markham, WA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:18AMSunset 4:41PM Thursday November 15, 2018 3:23 PM PST (23:23 UTC) Moonrise 1:42PMMoonset 11:53PM Illumination 54% Phase: First Quarter Moon; Moon at 8 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- 226 Pm Pst Thu Nov 15 2018
.small craft advisory for rough bar in effect until midnight pst tonight... Combined seas 10 ft subsiding to 6 to 8 feet after midnight tonight. Bar conditions rough, becoming moderate after midnight tonight. Maximum ebb currents will occur around 1015 pm tonight and 1115 am Friday.
PZZ100 226 Pm Pst Thu Nov 15 2018
Synopsis for the northern and central washington coastal and inland waters..A weak frontal system will track through the region tonight. Seas will subside under 10 ft. The flow will turn offshore on Friday and persist through early next week as high pressure builds east of the cascades.


7 Day Forecast for Marine Location Near Markham, WA
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location: 46.89, -124     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 152227
afdsew
area forecast discussion
national weather service seattle wa
227 pm pst Thu nov 15 2018

Synopsis A weak weather system will affect mainly northern
washington and the mountains tonight through Friday. A upper
level ridge result in dry conditions and patchy night and morning
fog this weekend into early next week. The next weather system may
bring wet weather back to the region by mid to late next week.

Short term today through Friday night Just a few light rain
showers continue to drift SE across the northwestern portions of
the state ahead of a weak shortwave. This wave will brush the
region tonight into Friday and result in some additional shower
activity, mainly focused across the mountains. Some light showers
will be possible in the lowlands, though significant rain
accumulations are not expected. Skies are expected to clear from
north to south in the wake of this system Friday into Friday
night. -wolcott-

Long term Saturday through Wednesday An sharp upper level
ridge will develop Friday into Saturday resulting in dry
conditions across the region. Areas of morning fog will be
possible along with areas of sub-freezing morning lows. Otherwise,
quiescent conditions are expected this weekend into early next
week.

The main change in the long term period today was decreasing
precipitation chances Tuesday as the possible pattern change
appears to be slightly delayed. In any case, precipitation are
likely to increase as we head toward the middle or latter part of
the week. There is considerable uncertainty in any details of this
pattern change, so please stay tuned as we head into the
thanksgiving week. -wolcott-

Aviation The air mass across western wa is moist and stable.

Showers from a weak weather system will mainly affect areas near
the canadian border this afternoon, then spread south tonight.

The flow aloft is westerly. MVFR CIGS are likely with light rain.

Low clouds will linger into Friday morning then eventually scour
out (from north to south) Friday afternoon and evening as offshore
flow increases. 33
ksea... MVFR CIGS are likely tonight with light rain in the
vicinity. Low clouds will linger through at least 18z fri. S winds
at the surface to 10 kt. Dry and low clouds clearing fri
afternoon and evening. 33

Marine A small craft advisory for hazardous seas remains in
effect for the coastal waters and west entrance for seas at 10-11
feet. Seas will subside late this evening. Meanwhile, south winds
will increase over the northern inland water as a frontal systems
clips the region. The strait of juan de fuca will also see a
brief westerly push tonight - small craft advisories are in
effect. The flow will turn offshore on Friday and persist through
the weekend as high pressure builds east of the cascades. 33

Hydrology River floor flooding is unlikely through early next
week.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory for hazardous seas until 10 pm pst this
evening for coastal waters from CAPE flattery to james
island 10 to 60 nm-coastal waters from CAPE flattery to
james island out 10 nm-coastal waters from james island to
point grenville 10 to 60 nm-coastal waters from james
island to point grenville out 10 nm-coastal waters from
point grenville to CAPE shoalwater 10 to 60 nm-coastal
waters from point grenville to CAPE shoalwater out 10 nm-
west entrance u.S. Waters strait of juan de fuca.

Small craft advisory for rough bar until midnight pst tonight
for grays harbor bar.

Small craft advisory until 4 am pst Friday for central u.S.

Waters strait of juan de fuca-east entrance u.S. Waters
strait of juan de fuca-northern inland waters including the
san juan islands.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPTW1 - 9441102 - Westport, WA 6 mi48 min WSW 5.1 G 6 52°F 51°F1025.4 hPa
46211 - Grays Harbor, WA (036) 13 mi24 min 53°F10 ft
TOKW1 - 9440910 - Toke Point, WA 13 mi42 min SW 2.9 G 4.1 52°F 51°F1025.7 hPa
46243 - Clatsop Spit, OR - 162 47 mi24 min 54°F9 ft
ASTO3 - 9439040 - Astoria, OR 49 mi96 min N 1.9 G 2.9 51°F 52°F1025.9 hPa

Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA6 mi31 minSSW 35.00 miFog/Mist53°F51°F93%1025.8 hPa

Wind History from HQM (wind in knots)
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Last 24hrSW5SW3CalmCalmS43S4SW5E4E4CalmNE3CalmCalmNE3E7NE3E3E3SE3W5W7SW6SW3
1 day agoE3E4E4E6E7NE4NE6NE5E4E5NE4E5S17
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2 days agoNE10NE8E7E9E8E9E8E11E10NE8E10E9NE6NE8NE7NE5NE7NE6NE6NE7NE6NE5NE4NE4

Tide / Current Tables for Markham, Grays Harbor, Washington
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Markham
Click for Map
Thu -- 06:38 AM PST     7.90 feet High Tide
Thu -- 06:54 AM PST     First Quarter
Thu -- 07:19 AM PST     Sunrise
Thu -- 12:14 PM PST     4.34 feet Low Tide
Thu -- 01:41 PM PST     Moonrise
Thu -- 04:41 PM PST     Sunset
Thu -- 05:59 PM PST     7.68 feet High Tide
Thu -- 11:53 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.52.23.44.65.877.87.97.36.45.64.94.44.65.46.36.97.47.77.36.353.82.8

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Thu -- 12:29 AM PST     0.00 knots Slack
Thu -- 03:35 AM PST     1.37 knots Max Flood
Thu -- 06:54 AM PST     First Quarter
Thu -- 07:05 AM PST     -0.00 knots Slack
Thu -- 07:19 AM PST     Sunrise
Thu -- 10:20 AM PST     -1.50 knots Max Ebb
Thu -- 01:09 PM PST     0.00 knots Slack
Thu -- 01:41 PM PST     Moonrise
Thu -- 03:06 PM PST     0.55 knots Max Flood
Thu -- 04:41 PM PST     Sunset
Thu -- 06:14 PM PST     -0.00 knots Slack
Thu -- 10:13 PM PST     -2.09 knots Max Ebb
Thu -- 11:53 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.50.51.11.31.41.30.90.1-0.8-1.2-1.5-1.4-0.8-0.10.40.60.50.30.1-0.5-1.4-1.9-2.1-2

Weather Map and Satellite Images
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wmap_P
GOES Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Wind Forecast for Seattle, WA (18,4,5,8)
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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.