Thursday, May23, 2019 L-36.com


Marine Weather and Tides
Ferndale, 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 5:16AMSunset 8:56PM Thursday May 23, 2019 10:43 AM PDT (17:43 UTC) Moonrise 12:00AMMoonset 8:27AM Illumination 78% Phase: Waning Gibbous; Moon at 19 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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PZZ133 Northern Inland Waters Including The San Juan Islands- 844 Am Pdt Thu May 23 2019
Today..NW wind to 10 kt. Wind waves 1 ft or less.
Tonight..SW wind 10 to 20 kt. Wind waves 1 to 3 ft. A slight chance of showers after midnight.
Fri..SW wind 10 to 20 kt. Wind waves 1 to 3 ft. A slight chance of showers in the morning then a chance of showers in the afternoon.
Fri night..SW wind 10 to 20 kt becoming S 5 to 15 kt after midnight. Wind waves 1 to 3 ft.
Sat..S wind 5 to 15 kt becoming E in the afternoon. Wind waves 2 ft or less.
Sat night..NW wind to 10 kt becoming sw after midnight. Wind waves 1 ft or less.
Sun..W wind 5 to 15 kt. Wind waves 2 ft or less.
Mon..W wind to 10 kt becoming S 15 to 25 kt. Wind waves 1 ft or less building to 2 to 4 ft.
PZZ100 844 Am Pdt Thu May 23 2019
Synopsis for the northern and central washington coastal and inland waters..Light flow this morning will become onshore and increase this afternoon and evening. Strong nw flow will develop over the coastal waters on Friday. The low level flow will ease on Saturday and become light Sunday. Onshore flow will increase again on Monday.


7 Day Forecast for Marine Location Near Ferndale, WA
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location: 48.79, -122.67     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 231616
afdsew
area forecast discussion
national weather service seattle wa
916 am pdt Thu may 23 2019

Update The forecast is in good shape this morning with no
changes necessary. Visible satellite imagery does show an
expansive area of marine stratus extending along the coast, thru
the strait of juan de fuca and across the southwest interior into
portions of the south sound. This is simply a product of onshore
flow as usual as higher pressure sits offshore and lower pressure
remains inland. Given abundant sunshine today along with the
shallow nature of the cloud cover, the stratus should burn off by
early afternoon. Those that are not experiencing low clouds this
morning have enjoyed mostly sunny skies.

Overall weather conditions will be benign today, especially across
the lowlands under mostly sunny skies with high temps in the mid-
upper 70s. There will still exist the chance for a few diurnally-
driven showers and isolated thunderstorms across the cascades and
olympics this afternoon and evening. The main hazards from
thunderstorms will be gusty winds and locally heavy downpours. Activity
should then diminish a few hours after sunset.

The next shortwave is expected to drop down from british columbia
on Friday. This still looks to spread a better chance for
scattered showers to all of western washington. Best instability
for thunderstorm activity appears to remain confined to the
cascade crest and eastern slopes outside of the CWA during the
afternoon and evening.

Previous discussion can be referenced below with updated marine
and aviation sections.

Kovacik

Prev discussion issued 250 am pdt Thu may 23 2019

Synopsis Afternoon evening showers and thunderstorms over the
mountains again today. A system will bring more widespread showers
to the area Friday into Saturday. Drier conditions possible next
week though the chance for mountain showers may continue.

Short term today through Saturday Marine stratus has made a
push into the southwest interior and down the strait early this
morning with ceilings between 300 and 500 feet. Oth-sea gradient
has relaxed slightly overnight but some patchy stratus may make it
close to the metro area by daybreak. Should erode back to near
the coast by mid or late morning. Otherwise fairly mild overnight
temperatures and plenty of sunshine should result in a few degrees
of warming from Wednesday's highs. Showers and isolated
thunderstorms will pop up in the mountains later this afternoon
and evening with marginal instability. Like yesterday, activity
shouldn't be super widespread.

Upper level trough will drop south from bc on Friday, bringing
the chance for more widespread showers. Amounts look to be fairly
light. This will serve to cool temperatures back into the 60s for
the start of the weekend. Fairly new over the past few model runs,
solutions show a secondary low dropping SE along the coast
Saturday which may bring additional showers. Have hedged forecast
in this direction though don't expect it to be a washout. Ceo

Long term Sunday through Wednesday Aforementioned low drops
south of the region on Sunday with high pressure returning into
mid-week. This should bring dry weather to most, though diurnal
showers possible over the mountains each day. Afternoon highs will
warm back into the 70s, except for along the coast which will be
in the upper 60s. Ceo

Aviation Low level marine stratus pushed into the interior
this morning with tops around 1400 ft. Low clouds will burn back
to the coast this afternoon. Showers and isolated thunderstorms
will develop over the cascades this afternoon and evening. Low
clouds will redevelop overnight with onshore flow. 33
ksea... Low clouds and fog at the terminal through 18z, thenVFR.

MVFR CIGS likely late tonight. S SW winds at the surface. 33

Marine Onshore flow will increase tonight with small craft
advisories in effect for the coastal waters and the strait of juan
de fuca. Strong northwest flow will develop over the outer coastal
waters on Friday with gales possible. Winds will ease on Saturday
and become light on Sunday. Onshore flow will increase again on
Monday. 33

Hydrology The daily hydrology discussion has ended until the
start of the next rainy season; it will only be updated as needed
until then.

Sew watches warnings advisories
Wa... None.

Pz... Gale watch from Friday morning through Friday evening for
coastal waters from CAPE flattery to james island 10 to 60
nm-coastal waters from james island to point grenville 10
to 60 nm-coastal waters from point grenville to cape
shoalwater 10 to 60 nm.

Small craft advisory until 6 am pdt Friday for coastal waters
from CAPE flattery to james island 10 to 60 nm-coastal
waters from james island to point grenville 10 to 60 nm-
coastal waters from point grenville to CAPE shoalwater 10
to 60 nm.

Small craft advisory from 6 pm this evening to 11 pm pdt Friday
for coastal waters from CAPE flattery to james island out
10 nm-coastal waters from james island to point grenville
out 10 nm-coastal waters from point grenville to cape
shoalwater out 10 nm.

Small craft advisory from 6 pm this evening to 5 am pdt Friday
for central u.S. Waters strait of juan de fuca-east
entrance u.S. Waters strait of juan de fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46118 7 mi49 min WNW 3.9 54°F 1017.1 hPa53°F
CHYW1 - 9449424 - Cherry Point, WA 7 mi62 min 1017.2 hPa
CPMW1 7 mi62 min SSE 8 G 8.9 54°F 62°F
FRDW1 - 9449880 - Friday Harbor, WA 25 mi68 min NE 1.9 G 2.9 55°F 50°F1017.1 hPa
SISW1 - Smith Island, WA 34 mi54 min W 6 G 8 50°F 1017.5 hPa (+0.0)47°F
46088 - New Dungeness, WA (Hein Bank) 41 mi54 min WSW 9.7 G 12 49°F 49°F1017 hPa (+0.0)49°F
PTWW1 - 9444900 - Port Townsend, WA 47 mi62 min WNW 5.1 G 7 56°F 51°F1017.9 hPa

Wind History for Cherry Point South Dock, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Bellingham, Bellingham International Airport, WA7 mi51 minSSW 510.00 miFair59°F51°F75%1017.5 hPa
Eastsound, Orcas Island Airport, WA13 mi49 minVar 49.00 miFair61°F55°F83%1016.9 hPa

Wind History from BLI (wind in knots)
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Last 24hrNW35W6SW64NW3CalmS53SW3S4S7S5S5S3S5S44S6S4S66S5S5
1 day agoW5W5W56SW6S7S8CalmS43CalmS4S4CalmCalmCalmS4CalmCalmCalmCalmSW3Calm3
2 days agoS9S8S7S3S5S5S3SW84S3S5S6S8S6S3CalmN3CalmCalmCalmCalmNE3NW5N5

Tide / Current Tables for Sandy Point, Lummi Bay, Washington
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Sandy Point
Click for Map
Thu -- 12:44 AM PDT     Moonrise
Thu -- 04:26 AM PDT     6.34 feet Low Tide
Thu -- 05:20 AM PDT     Sunrise
Thu -- 07:14 AM PDT     6.89 feet High Tide
Thu -- 09:27 AM PDT     Moonset
Thu -- 03:09 PM PDT     -0.99 feet Low Tide
Thu -- 08:55 PM PDT     Sunset
Thu -- 11:09 PM PDT     8.95 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.47.776.66.46.46.66.96.86.35.442.30.7-0.5-1-0.70.423.85.77.38.58.9

Tide / Current Tables for Clark Island, 1.6 mile North of, Washington Current
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Clark Island
Click for MapFlood direction 335 true
Ebb direction 150 true

Thu -- 12:44 AM PDT     Moonrise
Thu -- 01:16 AM PDT     -0.72 knots Max Ebb
Thu -- 05:20 AM PDT     Sunrise
Thu -- 06:02 AM PDT     0.00 knots Slack
Thu -- 07:19 AM PDT     0.11 knots Max Flood
Thu -- 07:40 AM PDT     -0.00 knots Slack
Thu -- 09:27 AM PDT     Moonset
Thu -- 12:18 PM PDT     -1.46 knots Max Ebb
Thu -- 05:07 PM PDT     0.00 knots Slack
Thu -- 08:21 PM PDT     1.19 knots Max Flood
Thu -- 08:55 PM PDT     Sunset
Thu -- 11:58 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.4-0.7-0.7-0.6-0.4-0.2-00.1-0.1-0.5-0.9-1.3-1.4-1.4-1.2-0.9-0.5-0.10.40.91.21.10.90.5

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 (13,3,4,5)
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Ground Weather Radar Station Seattle/Tacoma, WA
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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.