Thursday, February22, 2018 L-36.com


Marine Weather and Tides
Portsend, 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 7:01AMSunset 5:46PM Thursday February 22, 2018 2:44 PM PST (22:44 UTC) Moonrise 10:37AMMoonset 12:20AM Illumination 52% 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
    EDIT      (on/off)   Help
PZZ134 Admiralty Inlet- 900 Am Pst Thu Feb 22 2018
Today..N wind to 10 kt becoming nw 10 to 20 kt in the afternoon. Wind waves 1 ft or less building to 1 to 3 ft in the afternoon.
Tonight..NW wind 10 to 20 kt becoming N to 10 kt after midnight. Wind waves 1 to 3 ft subsiding to 1 ft or less after midnight.
Fri..SE wind 10 to 20 kt rising to 20 to 30 kt in the afternoon. Wind waves 1 to 3 ft building to 3 to 5 ft in the afternoon. A chance of snow in the morning then snow likely in the afternoon.
Fri night..SE wind 10 to 20 kt becoming S to 10 kt after midnight. Wind waves 1 to 3 ft subsiding to 1 ft or less after midnight.
Sat..NW wind 15 to 25 kt easing to 5 to 15 kt in the afternoon. Wind waves 2 to 4 ft subsiding to 2 ft or less in the afternoon.
Sat night..Variable wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less.
Sun..SW wind 15 to 25 kt easing to 10 to 20 kt. Wind waves 2 to 4 ft.
Mon..Light wind becoming se to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
PZZ100 900 Am Pst Thu Feb 22 2018
Synopsis for the northern and central washington coastal and inland waters..Moderate northerly flow will continue today as a weak low moves south into oregon. Winds will ease tonight as a surface ridge moves southeast across the waters. A series of increasingly strong frontal systems will move across the waters Friday through the weekend, with gales possible Saturday into Sunday.

7 Day Forecast for Marine Location Near Portsend, WA
   Hourly   EDIT   Help
location: 48.1, -122.76     debug


Area Discussion for - Seattle, WA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksew 221743
afdsew
area forecast discussion
national weather service seattle wa
943 am pst Thu feb 22 2018

Synopsis A break between systems is occurring today, though
cold and dry air continues to filter out of western canada and
into western washington. The next system will dive in from the
northwest on Friday, with precipitation moving spreading in from
the northwest from late Friday morning through Friday afternoon.

Low snow levels will continue as this system moves through the
area. Another system will follow quickly early Saturday. Cool
northwest flow aloft through the middle of next week, with cool
wet systems around Sunday and then next Tuesday or Wednesday.

Short term Northwest flow aloft will continue through early
next week. For today, a shortwave ridge is crossing the area, and
cold dry continental air continues to pour out of the fraser
valley past bellingham, reinforcing the cold and dry air mass in
place.

The next shortwave will dive down the b.C. Coast on Friday, with
a secondary wave on its heels crossing the area early Saturday
morning. Westerly low-level flow in advance of Friday's shortwave
will advect warmer maritime air onshore. The warm advection lift
will bring about precip. Precip will spread southeast down the
b.C. Coast on Friday morning, reaching the northwest olympic
peninsula by late morning, then spreading across the rest of
western washington on Friday afternoon. Cold air mass will cause
precip to start as snow. Along the coast, precip will quickly
change to rain just an hour or two after beginning. Along the i-5
corridor from the everett area on south, precip will change to
rain early Friday evening, after an inch or so of snow has
occurred. With onshore flow, orographic lift will enhance precip
over the mountains. In the cascades, this could be an advisory-
level snow event.

By the time the secondary trailing shortwave arrives early
Saturday morning, most of the lowlands will be warm enough for
merely cold rain, though snow could linger in the eastern
lowlands, i.E. The cascade foothill communities. Once the
shortwave passes, the air mass will cool down some again, with
snow level down to 300-500 feet by mid-day Saturday. Post-frontal
showers are possible, especially in a puget sound convergence zone
and the mountains. Haner

Long term From previous discussion: the general trend of well
below normal temperatures with precipitation will continue through
the extended period. GFS and ECMWF in good agreement with another
low snow level, 1000 feet or less, system arriving on Sunday with
an upper level trough over the area on Monday. Model solutions
diverge after Monday with the ECMWF drying things out Tuesday and
Wednesday while the GFS brings yet another system down the british
columbia coast Tuesday into early Wednesday with somewhat low
snow levels. Current forecast is more in line with the gfs
solution and with the inconsistencies in the models will stay with
the current forecast for the extended period. Felton

Aviation Northerly flow aloft over western washington this
morning will continue today, then increase tonight and back to
northwest late tonight. The air mass will be generally dry, with
moisture increasing late tonight as the next weather system
approaches the region. At the surface moderate northerly flow
will continue today, ease this evening, and turn southerly late
tonight.

There is still some lingering low clouds, generally around 1500
ft, especially in the south part of the forecast area; those
clouds should dissipate during the next couple hours, with only
high clouds above 12,000 ft over the area through tonight. The
exception to this is along the north side of the olympic
peninsula, where northerly low level flow is producing a local
deck of stratocumulus clouds around 4000-5000 ft.

Ksea... North wind 8-14 kt easing to 4-8 kt this evening and
switching to southerly around midnight. The low clouds around
1400 ft will continue to decrease this morning; otherwise there
should be no significant cloud cover below 12,000 ft through
tonight. The next chance for accumulation snow at ksea appears to
be Friday afternoon. Mcdonnal

Marine Moderate north to northeast pressure gradients will
continue today as a weak low over the far southern washington
coastal waters drops south through oregon. Small craft advisory
winds are expected through this evening over the coastal waters
and for today over much of the inland waters. Winds will ease
tonight as a weak ridge moves southeast across the area.

A strong surface trough will drop southeast into the waters later
Friday into Friday night, bringing small craft advisory south to
southeast winds to all of the waters. Winds will likely increase
further Saturday into Sunday as a couple of strong frontal
systems drop southeast through the waters. Small craft advisory
conditions are likely over all of the waters, and gales are
possible. Mcdonnal

Hydrology River flooding is not expected the next 7 days.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisory until 11 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.

Small craft advisory until 3 pm pst this afternoon 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.

Small craft advisory until 1 pm pst this afternoon for puget
sound and hood canal.



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PTWW1 - 9444900 - Port Townsend, WA 1 mi45 min WNW 9.9 G 16 38°F 46°F1028.9 hPa (+0.0)
SISW1 - Smith Island, WA 16 mi45 min NNE 19 G 22 38°F 1028.1 hPa (+0.0)
46088 - New Dungeness, WA (Hein Bank) 27 mi55 min N 14 G 18 36°F 46°F1 ft1029 hPa (+0.0)17°F
PBFW1 - Padilla Bay Reserve, WA 30 mi75 min N 6 36°F 1028 hPa13°F
46120 30 mi38 min SW 14 35°F 1027.6 hPa17°F
FRDW1 - 9449880 - Friday Harbor, WA 34 mi69 min NNE 8 G 16 36°F 46°F1029.1 hPa
WPOW1 - West Point, WA 35 mi45 min N 15 G 16 35°F 1027.8 hPa (+0.0)14°F
PTAW1 - 9444090 - Port Angeles, WA 36 mi69 min 1.9 G 2.9 38°F 46°F1029.4 hPa
EBSW1 - 9447130 - Seattle, WA 41 mi45 min NNW 4.1 G 13 37°F 46°F1027.8 hPa (+0.0)

Wind History for Port Townsend, WA
(wind in knots)    EDIT      (on/off)   Help
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
Last
24hr
E6
E8
G13
E7
G11
E6
E7
NE4
G10
E8
G12
N2
G7
NE9
G12
N7
NW8
G13
NW4
W5
G9
NW8
G11
NW6
G17
NW10
G18
NW11
G17
NW4
G7
NW5
G8
N9
N4
G7
W8
G11
NW10
G17
W10
G16
1 day
ago
NW4
G7
N4
NW4
G7
NW3
NW3
G8
NW5
G8
NW5
G9
NW5
G10
NW3
NW5
G8
W4
NW3
NE3
NW4
S4
SW2
S3
SE7
SE5
G8
SE7
SE5
G8
SE5
E5
NE3
G8
2 days
ago
W9
G13
W4
G9
W2
G6
SW2
W4
SW4
SW2
SE7
SE6
G9
SE6
SE4
SE5
E6
E11
E8
G13
SE8
G12
SE9
SE7
SE8
SE8
SE4
E6
S1
G4
N3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Whidbey Island Naval Air Station - Ault Field, WA19 mi49 minNNE 710.00 miPartly Cloudy42°F10°F28%1029.1 hPa

Wind History from NUW (wind in knots)
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
Last 24hrSE9SE7SE7E9E10E9E9E5E4NE10N6SE33N13N12NE8NE7N7N11
G16
NE10N8NE8
G16
NE8N7
1 day agoNE5N8N7N9N4N10NE9N5N4N5NE3E6E6E3SE6SE3E7E9E8SE9SE9SE6SE7SE9
2 days agoNW12N7NW5NE4SE4S4SE3E4E5SE5E7E6E7E8E9E6E6E7E6E7E9E5E64

Tide / Current Tables for Point Hudson, Washington
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Point Hudson
Click for Map
Thu -- 12:20 AM PST     Moonset
Thu -- 01:30 AM PST     4.48 feet Low Tide
Thu -- 07:05 AM PST     Sunrise
Thu -- 08:11 AM PST     8.86 feet High Tide
Thu -- 10:37 AM PST     Moonrise
Thu -- 03:05 PM PST     1.40 feet Low Tide
Thu -- 05:44 PM PST     Sunset
Thu -- 10:35 PM PST     6.72 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
54.54.555.86.77.78.48.88.67.86.34.52.91.81.41.72.43.44.55.46.26.76.7

Tide / Current Tables for Portsend, 0.5 miles S of Point Hudson, Washington Current
   EDIT      (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATIONSorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Seattle, WA (17,4,5,8)
      (on/off)   Help

Ground Weather Radar Station Seattle/Tacoma, WA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.