Saturday, November18, 2017 L-36.com


Marine Weather and Tides
Markham, 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 7:23AMSunset 4:38PM Saturday November 18, 2017 5:21 PM PST (01:21 UTC) Moonrise 7:20AMMoonset 5:19PM Illumination 0% Phase: New Moon; Moon at 0 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- 304 Pm Pst Sat Nov 18 2017
.small craft advisory for rough bar conditions on Sunday... Combined seas 6 to 9 feet tonight building to 12 to 15 feet on Sunday. Bar conditions moderate tonight, becoming severe on Sunday. Maximum ebb currents will occur around 415 pm this afternoon and 415 am on Sunday morning. The afternoon ebb will be strong.
PZZ100 304 Pm Pst Sat Nov 18 2017
Synopsis for the northern and central washington coastal and inland waters..A cold front will move southeast along the british columbia coast through tonight, then move southward through the washington waters on Sunday. The front will be preceded by increasing south to southeast wind, with gales expected over all waters except the central strait. A high pressure center will pass across the waters on Monday. A strong warm front will push northward through the waters on Tuesday. A strong low pressure center should move north well offshore to near haida gwaii late Wednesday.

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 182324
afdsew
area forecast discussion
national weather service seattle wa
324 pm pst Sat nov 18 2017

Synopsis Weak high pressure will give way to a vigorous front on
Sunday afternoon and evening. Weak high pressure will be over the
area Monday. A strong warm front will arrive by Tuesday. The middle
of the week will be mild, rainy, and perhaps windy at times.

Short term A front will shift southeast into western washington
Sunday afternoon and evening. Winds are likely to be strong enough
for wind advisories in the typically windy spots. There is a winter
storm watch up for parts of the cascades, you would probably have
to be up pretty high for this front to seem much like winter--above
5000 feet. There will be some heavy rain in the olympics and also
a decent rain shadow in the lee of the olympics. The front is mostly
southeast of the area by late Sunday night and most of the day mon
should be dry before a warm front nears the area Monday night.

Long term The strong warm front will be over the region Tuesday.

The heavier rain shifts to the b.C. Coast Wednesday and Wednesday
night before shifting south over the area Thursday and breaking up
somewhat. It will be mild, rainy, and breezy and the rivers will
be running high, with the skokomish river in mason county flooding.

There is a chance of flooding on the other rivers, but the fact
that this pineapple express is more southerly probably means the
best orographics are limited to the olympics. But it will still
make a mess of our early season snowpack which is a shame for the
skiers. Seattle ought to be up around 60 for a high Wednesday.

Aviation A flat upper ridge axis will exit east and flatten a
bit tonight. A cold front will spread down the b.C. Coast tonight
and move southward through western washington later Sunday,
preceded by heavy rain and strong southerly surface wind. Moderate
westerly flow aloft this evening will become strong on Sunday.

The air mass is stable. Moisture and clouds will thicken rapidly
starting late this evening, then lower on Sunday.

Ksea... Clear below 100 will continue through at least 08z
(midnight) tonight. Cloud CIGS around 040 will rapidly develop
overnight, with rain developing later Sunday morning. CIGS and
vsbys lowering Sunday afternoon in occasionally moderate rain.

Southerly surface wind for the next 30 hours. Late Sunday
afternoon, SW wind at 040 will peak near 70 knots. Haner

Marine A strong cold front extending wsw from the queen
charlotte sound into the pacific will slowly drag southeast down the
british columbia coastline tonight and then push southeastward
through the washington waters on Sunday afternoon. In advance of
the front, winds will rise. The wind increase will progress from
north to south through tonight with gales expected over most
waters ahead of the front. Winds will rapidly ease and shift out
of the northwest behind the front later Sunday afternoon and
evening.

High pressure will bring light winds to the waters on Monday. A
strong warm front will push northward through the waters on Tuesday.

A strong low pressure center developing well offshore will push
northeast into haida gwaii on Wednesday. Haner

Hydrology The skokomish river in mason county is a shoo-in to get
over flood stage and stay up around flood stage for several days.

The 12z GFS does not show especially heavy precip over the cascades
and for Wednesday and Wednesday evening shifts the heavy rain up in
british columbia. Possibly this pineapple express or atmospheric
river or whatever you want to call it is too southerly for the
cascades--more westerly flow and stronger orographics might increase
the chance of flooding for the cascade rivers--but it will still be
wet and warm and this bears watching.

Sew watches warnings advisories
Wa... Winter storm watch from Sunday afternoon through late Sunday
night for cascades of pierce and lewis counties.

Winter storm watch from late tonight through Sunday afternoon
for cascades of whatcom and skagit counties.

Flood watch from Sunday morning through Monday morning for hood
canal area-lower chehalis valley area-olympics.

Wind advisory from 6 am to 3 pm pst Sunday for admiralty inlet
area-san juan county-western skagit county-western whatcom
county.

Wind advisory from 6 am to 5 pm pst Sunday for central coast.

Wind advisory from 4 am to 3 pm pst Sunday for north coast.

Pz... Small craft advisory for rough bar from 6 am Sunday to noon pst
Monday for grays harbor bar.

Gale warning from 3 am to 7 pm pst Sunday for coastal waters
from point grenville to CAPE shoalwater out 10 nm.

Gale warning from midnight tonight to 7 pm pst Sunday for
coastal waters from point grenville to CAPE shoalwater 10
to 60 nm.

Gale warning from 3 am to 3 pm pst Sunday for admiralty inlet-
coastal waters from james island to point grenville out 10
nm-east entrance u.S. Waters strait of juan de fuca-
northern inland waters including the san juan islands.

Gale warning from 10 pm this evening to 3 pm pst Sunday 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.

Small craft advisory until 6 pm pst this evening for admiralty
inlet-east entrance u.S. Waters strait of juan de fuca-
northern inland waters including the san juan islands.

Gale warning from midnight tonight to 3 pm pst Sunday for west
entrance u.S. Waters strait of juan de fuca.

Small craft advisory from midnight tonight to 6 pm pst Sunday
for central u.S. Waters strait of juan de fuca.

Small craft advisory from 9 pm this evening to 6 am pst Sunday
for puget sound and hood canal.

Gale warning from 6 am to 3 pm pst Sunday for puget sound and
hood canal.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46211 - Grays Harbor, WA (036) 13 mi52 min 52°F5 ft
46243 - Clatsop Spit, OR - 162 47 mi52 min 52°F4 ft

Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA6 mi29 minE 310.00 miFair46°F42°F86%1021.1 hPa

Wind History from HQM (wind in knots)
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Last 24hrCalmE4CalmE5CalmE4NE3E4E6E5E7NE6E7E5NE6E12E9E7E7E3S3S6S4E3
1 day agoSE12SE12S10S9CalmW9W3W11CalmNW4CalmCalmNE5E3NE4E3CalmSE4W6W9W6SW9SW6S5
2 days agoNE6E9E7E8NE5W3E6SE10SE15SE13S14S11NE9SE9E9E7E8E9SE8S11SE10SE11SE9SE8

Tide / Current Tables for Markham, Grays Harbor, Washington
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Markham
Click for Map
Sat -- 12:43 AM PST     8.64 feet High Tide
Sat -- 03:42 AM PST     New Moon
Sat -- 06:13 AM PST     2.58 feet Low Tide
Sat -- 07:19 AM PST     Moonrise
Sat -- 07:23 AM PST     Sunrise
Sat -- 12:19 PM PST     10.04 feet High Tide
Sat -- 04:38 PM PST     Sunset
Sat -- 05:19 PM PST     Moonset
Sat -- 06:54 PM PST     -0.30 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
8.48.67.96.75.23.62.634.46.17.89.2109.88.76.94.72.40.4-0.30.52.146

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Sat -- 01:06 AM PST     -0.00 knots Slack
Sat -- 03:42 AM PST     New Moon
Sat -- 04:06 AM PST     -2.38 knots Max Ebb
Sat -- 06:47 AM PST     0.00 knots Slack
Sat -- 07:20 AM PST     Moonrise
Sat -- 07:24 AM PST     Sunrise
Sat -- 09:58 AM PST     2.00 knots Max Flood
Sat -- 12:42 PM PST     -0.01 knots Slack
Sat -- 04:21 PM PST     -3.72 knots Max Ebb
Sat -- 04:38 PM PST     Sunset
Sat -- 05:19 PM PST     Moonset
Sat -- 07:42 PM PST     0.01 knots Slack
Sat -- 11:05 PM PST     2.31 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.50.1-1.1-2-2.4-2-10.21.21.821.81-0.5-2-3.1-3.7-3.5-2.5-10.41.52.12.3

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 Seattle, WA (20,4,5,8)
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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.