Friday, June23, 2017 L-36.com


Marine Weather and Tides
Junction City, WA

Version 3.4
What's New / NOTES
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 5:19AMSunset 9:16PM Friday June 23, 2017 1:52 PM PDT (20:52 UTC) Moonrise 4:16AMMoonset 7:48PM Illumination 0% Phase: New Moon; Moon at 29 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- 852 am pdt Fri jun 23 2017 combined seas 1 to 4 ft. Bar conditions light. The maximum ebb currents will occur around 5 pm today and 515 am Saturday. The morning ebb will be very strong. PZZ100 852 Am Pdt Fri Jun 23 2017
Synopsis for the northern and central washington coastal and inland waters..High pres over british columbia with lower pres over oregon will result in northerly flow today. The flow will become offshore or easterly tonight due to a thermally induced trough of low pres setting up just off the coast. Offshore flow will then persist for much of this weekend.

7 Day Forecast for Marine Location Near Junction City, WA
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location: 46.97, -123.78     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 231601
afdsew
area forecast discussion
national weather service seattle wa
901 am pdt Fri jun 23 2017

Synopsis An upper ridge will bring dry weather with a warming
trend through the weekend. High pressure aloft will shift inland
on Monday with onshore flow developing. Temperatures will moderate
closer to average with highs mainly in the upper 60s to to low 70s
during the early to middle part of next week. Dry weather should
continue next week but with areas of low clouds giving way to
afternoon sunshine over the interior.

Short term Skies are clear across the region this morning with
dry low level northerly flow as a ridge offshore builds and
progresses slowly eastward. 500 mb heights build close to 5900m
this weekend as the air mass warms; low level offshore flow and
compressional heating will add to the warmth of the boundary layer
this weekend. Afternoon high temperatures will be close to record
levels on Saturday and will likely break records on Sunday. Dry
weather will prevail through the weekend.

Pressure gradients this morning are northerly and cross cascade
gradients are gradually shifting to offshore. The northerly flow
will hinder high temperatures slightly at locations near the
water, including seattle, today. Areas inland from the puget sound
and in the southwest interior zones will see the biggest increases
in temperature today. Highs today will be in the 70s north, near
80 on the coast, and in the lower to mid 80s in the south
interior.

The hottest day at the coast is expected Saturday, including places
like forks and hoquiam as offshore winds increase. Areas around
the southwest interior and greater puget sound to the south of
everett will also reach near 90. Forecasts generally follow a
mean of the raw 2 meter temperatures from the mesoscale models.

The latest 12z NAM model output statistics are 5 degrees hotter
for Saturday in the interior, and don't appear realistic.

Models continue to show the thermally induced low shifting inland
over puget sound on Sunday with easterly cross cascade gradients
peaking during the morning to midday. This will bring the hottest
temperatures of the year to the i-5 metro areas including seattle
and bellevue. 2 meter temperatures from the GFS and NAM show highs
in the lower to mid 90s from the seattle metro area southward in
the interior. MOS values from the 12z NAM appear a couple degrees
too warm and are being discounted. With a couple days expected to
reach near or above 90 in the metro area fairly early in the
season, a heat advisory is in effect for the seattle-tacoma-
bellevue metro areas southward to the southwest interior and east
toward the cascades for midday Saturday through Sunday evening.

Forecasts are in good shape. No updates are planned. Albrecht

Long term From the previous long term discussion: a transition
to onshore flow still looks to occur on Monday. The latest 00z
model runs still show a weak push Sunday night which may bring
some low clouds to the coast partially into the lower chehalis
gap. It looks like a more gradual push scenario with any low
clouds clearing quickly inland and still abundant afternoon
sunshine but with gradually increasing onshore flow. Upper heights
will also be falling. Foothills may hold out with one more hot
day in the mid to upper 80s but current timing of the push would
halt temperatures from warming much above 80 by early to mid
afternoon over most the area.

A weak trough brushes mainly to the north of the area Tuesday.

Models are mostly dry although a stray shower could occur over the
northern cascades. The odds of anything measurable are very low and
will keep the forecast dry. Lower heights and stronger onshore flow
will bring much cooler temperatures. Highs will be more seasonable
in the upper 60s to low 70s through Thursday. Clouds will be
stubborn along the coast which will also intrude inland during the
night and morning hours. However, partly to mostly sunny skies are
expected inland during the afternoon and early evening hours.

Aviation An upper level ridge will prevail over the region for
nw flow aloft. Low level northerly flow will become offshore or
easterly tonight. ExpectVFR conditions.

Ksea...VFR. Winds will be northerly 7-14 knots, strongest this
afternoon and evening.

Marine
High pressure over british columbia with lower pressure over
oregon will result in northerly flow today. The flow will become
offshore or easterly tonight due to a thermally induced trough of
low pressure setting up just off the coast. Offshore flow will
then persist for much of this weekend.

Onshore flow will return late Sunday afternoon and then strengthen
Monday and Tuesday for gale force westerlies across parts of the
strait of juan de fuca.

Sew watches warnings advisories
Wa... Heat advisory from noon Saturday to 9 pm pdt Sunday for bellevue
and vicinity-bremerton and vicinity-east puget sound
lowlands-hood canal area-seattle and vicinity-southwest
interior-tacoma area.

Pz... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPTW1 - 9441102 - Westport, WA 18 mi76 min NW 11 G 12 61°F 52°F1021.9 hPa
TOKW1 - 9440910 - Toke Point, WA 21 mi52 min NE 7 G 9.9 75°F 57°F1021.2 hPa (-0.9)
46211 - Grays Harbor, WA (036) 26 mi60 min 57°F4 ft
46099 42 mi182 min NNW 9.7 57°F 59°F1022.8 hPa

Wind History for Westport, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA10 mi60 minWSW 116.00 miFair with Haze70°F57°F64%1022 hPa

Wind History from HQM (wind in knots)
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Last 24hrW15W11W11SW9W12NW13
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NW7W4W4W5CalmCalmCalmCalmN3CalmCalmE3E5E4NE6CalmW9SW11
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W7NW5CalmCalmCalmCalmCalmCalmCalmCalmCalm3SE3S5SW9W10W13
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Tide / Current Tables for Cosmopolis, Chehalis River, Grays Harbor, Washington
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Cosmopolis
Click for Map
Fri -- 12:48 AM PDT     11.77 feet High Tide
Fri -- 05:17 AM PDT     Moonrise
Fri -- 05:20 AM PDT     Sunrise
Fri -- 07:30 AM PDT     -3.17 feet Low Tide
Fri -- 02:10 PM PDT     9.33 feet High Tide
Fri -- 07:32 PM PDT     1.58 feet Low Tide
Fri -- 07:32 PM PDT     New Moon
Fri -- 08:47 PM PDT     Moonset
Fri -- 09:14 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.411.710.88.65.72.4-0.7-2.9-2.9-1.21.44.16.68.59.38.97.55.53.51.91.83.568.4

Tide / Current Tables for Grays Harbor Entrance, Washington Current
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Grays Harbor Entrance
Click for Map
Fri -- 12:41 AM PDT     -0.00 knots Slack
Fri -- 04:23 AM PDT     -4.52 knots Max Ebb
Fri -- 05:18 AM PDT     Moonrise
Fri -- 05:22 AM PDT     Sunrise
Fri -- 07:48 AM PDT     0.01 knots Slack
Fri -- 11:06 AM PDT     2.91 knots Max Flood
Fri -- 02:01 PM PDT     -0.00 knots Slack
Fri -- 04:56 PM PDT     -2.61 knots Max Ebb
Fri -- 07:31 PM PDT     0.00 knots Slack
Fri -- 07:32 PM PDT     New Moon
Fri -- 08:48 PM PDT     Moonset
Fri -- 09:15 PM PDT     Sunset
Fri -- 10:30 PM PDT     2.54 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.1-0.6-2.5-3.8-4.5-4.4-3.2-1.50.31.72.62.92.71.70-1.4-2.3-2.6-2.1-0.80.71.82.52.5

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 (16,3,4,5)
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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.