Sunday, October22, 2017 L-36.com


Marine Weather and Tides
Des Moines, 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 7:38AMSunset 6:08PM Sunday October 22, 2017 3:46 PM PDT (22:46 UTC) Moonrise 9:24AMMoonset 7:12PM Illumination 8% Phase: Waxing Crescent; Moon at 3 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
PZZ135 Puget Sound And Hood Canal- 257 Pm Pdt Sun Oct 22 2017
Tonight..SW wind 10 to 20 kt becoming S 5 to 15 kt after midnight. Wind waves 1 to 3 ft. A chance of showers in the evening. Patchy fog after midnight.
Mon..S wind to 10 kt. Wind waves 1 ft or less. Patchy fog in the morning.
Mon night..Light wind becoming N to 10 kt after midnight. Wind waves 1 ft or less. Areas of fog after midnight.
Tue..N wind to 10 kt. Wind waves 1 ft or less.
Tue night..Light wind. Wind waves less than 1 ft.
Wed..S wind 5 to 15 kt. Wind waves 2 ft or less.
Wed night..SE wind to 10 kt becoming N after midnight. Wind waves 1 ft or less.
Thu..N wind 5 to 15 kt. Wind waves 2 ft or less.
Fri..N wind to 10 kt. Wind waves 1 ft or less.
PZZ100 257 Pm Pdt Sun Oct 22 2017
Synopsis for the northern and central washington coastal and inland waters..Onshore flow will weaken this evening. A ridge will build over the pacific northwest giving offshore flow across western washington late tonight through Tuesday. A weak cold front will move southeast across the area Wednesday. Northerly offshore flow will prevail Thursday and Friday as a ridge builds over southern british columbia.

7 Day Forecast for Marine Location Near Des Moines, WA
   Hourly   EDIT   Help
location: 47.39, -122.35     debug


Area Discussion for - Seattle, WA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksew 222153
afdsew
area forecast discussion
national weather service seattle wa
300 pm pdt Sun oct 22 2017

Synopsis Scattered showers will end tonight. Flooding will
continue on a few rivers, but most are on the way down. Monday will
have a few showers in the mountains, and Tuesday will be dry. After
some light rain Wednesday, dry weather should return.

Short term Radar shows scattered showers. These have had a few
lightning strikes and some gusty winds, but they are waning and
should be mostly done by sundown. Skies will clear somewhat
overnight and patchy fog will develop.

Monday and Tuesday now appear completely dry. Skies will become
completely clear Monday night and the resulting fog late at night
and Tuesday morning will be more extensive. Most of the fog will
evaporate on both days and there will be a slow warming trend. Highs
Monday will be 60-65, and they will be a few degrees higher Tuesday.

The weak system that will arrive from the northwest on Wednesday has
been looking even weaker in recent model runs. The forecast is now
for a chance of showers in the lowlands on Wednesday, with showers
likely in the mountains. There will be considerably more clouds on
Wednesday, so high temperatures will be 55-60. Burke

Long term After the weak front Wednesday, an upper ridge will
build off the coast, then slowly move inland through the weekend.

This should give clear skies, dry weather, and highs mostly in the
60s Thursday through Sunday. Burke

Hydrology While some showers remain on radar... The threat for
heavy rain over the area has ended. Still... The effects of said rain
are still being felt on some of the area rivers. Flood warnings
remain in place... Although the bulk of activity is trending
downward. For example... While a flood warning remains in effect for
the skokomish river... Current hydrographs indicate that waters have
fallen below flood stage. As such... That particular warning will be
allowed to expire upon the next fls issuance. The skykomish is in a
similar situation. The snoqualmie remains in minor flood stage but
continues to trend downward... So that warning looks to remain in
place into tonight. The cowlitz at randle looks like it has crested
just over moderate flood stage and will start a downward trend soon.

While the snohomish remains below flood levels at the time of this
writing... It is close and is still trending upward. That flood
warning will remain in place... But will merit watching in the
evening hours as the current trend does not really seem to fit well
with current hydrograph forecast.

The flood watch in place for lewis and thurston counties remains in
place due to a combination of the increased level of the cowlitz and
the continuing presence of showers there. As activity... Both flood
and showers... Dwindles this evening... Hard to imagine this watch not
being pulled down at some point in the night.

All in all... General activity continues a downward trend as the area
enters a phase where watches and warnings will slowly expire through
the night. Smr

Aviation West flow aloft over western washington this afternoon
will veer to northwest tonight and continue Monday, an an upper
ridge builds offshore and moves slowly toward the pacific
northwest coast. The air mass will gradually dry, especially at
mid and upper levels, with low level onshore flow turning weakly
offshore tonight.

We still have scattered light showers with bkn035-055 across
western washington. Isolated, brief thunderstorms are possible for
the next couple hours at the coast and over the olympics. Relatively
clear skies and light winds tonight, combined the moist ground,
should lead to patchy fog in the more fog-prone valleys late
tonight and Monday morning.

Ksea... Southwest wind 7-13 kt gusting 20 kt, easing this evening,
becoming southeast 4-8 kt tonight, then becoming northerly Monday
afternoon.VFR conditions with ceilings lifting above 6000 ft
later this evening. Mcdonnal

Marine Onshore flow this evening will turn weakly offshore
late tonight and continue through Tuesday, as a ridge builds over
the pacific northwest. Westerly swell 10 feet or higher will
continue over the coastal waters and at the west entrance strait
of juan de fuca through Monday evening.

A weak cold front will move southeast across the area on
Wednesday, with small craft advisory winds over some marine
zones. Northerly offshore flow will follow the front Thursday and
Friday as a ridge builds over southern british columbia. Mcdonnal

Sew watches warnings advisories
Wa... Flood watch through Monday morning for cascades of pierce and
lewis counties-southwest interior.

Pz... Small craft advisory for hazardous seas until 11 pm pdt Monday
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 for rough bar until 11 pm pdt Monday for
grays harbor bar.

Small craft advisory for hazardous seas until 5 pm pdt Monday
for west entrance u.S. Waters strait of juan de fuca.



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
TCNW1 - 9446484 - Tacoma, WA 9 mi46 min 57°F 53°F1025.2 hPa (+2.4)
TCMW1 - 9446482 - Tacoma Met, WA 9 mi46 min SW 7 G 11
EBSW1 - 9447130 - Seattle, WA 15 mi46 min SSW 8 G 12 58°F 54°F1023.9 hPa
WPOW1 - West Point, WA 19 mi46 min SSW 9.9 G 11 57°F 1023.5 hPa (+2.0)45°F
46120 26 mi45 min W 16 57°F 1022.6 hPa55°F

Wind History for Tacoma MET, WA
(wind in knots)    EDIT      (on/off)   Help
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
3
PM
Last
24hr
S3
SE6
SE8
G12
S8
G14
S7
G14
S7
G13
SW12
G16
SW17
G22
SW11
G17
S9
G12
S13
G16
SW18
G24
SW16
G24
SW12
G18
SW14
G21
SW11
G20
SE3
SW13
G21
SW10
G15
S6
G9
SW9
G14
SW8
G16
SW9
G14
SW7
G11
1 day
ago
S8
G15
S6
G12
S4
G9
SE6
SE5
G8
SE5
SE5
SE4
SE4
E3
SE3
SE3
E3
SE2
SE4
SE2
SE1
SW2
NE1
NW3
N4
NE1
W1
G4
NE1
2 days
ago
SW8
S3
G6
SE6
SE4
G7
SE5
G8
SE4
S3
G6
SE3
S4
G9
S3
G6
SW10
G15
S4
G10
W3
G8
SW9
G13
SE5
G8
S3
G6
S6
G20
SE7
SE7
S5
G15
S4
G8
SW8
G11
SW11
G16
SW12
G18

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Seattle, Seattle-Tacoma International Airport, WA4 mi53 minS 1310.00 miMostly Cloudy57°F46°F67%1025.1 hPa
Boeing Field - King County International Airport, WA10 mi53 minSSW 910.00 miMostly Cloudy59°F44°F58%1024.2 hPa
Renton Municipal Airport, WA10 mi53 minSE 410.00 miMostly Cloudy59°F46°F64%1025 hPa
Tacoma, Tacoma Narrows Airport, WA15 mi53 minSSW 910.00 miPartly Cloudy54°F50°F87%1024.6 hPa
Tacoma / McChord Air Force Base, WA17 mi1.8 hrsWNW 910.00 miLight Rain52°F51°F99%1025.5 hPa
Pierce County-Thun Field, WA20 mi71 minN 010.00 miLight Drizzle52°F50°F94%1025.4 hPa
Bremerton, Bremerton National Airport, WA23 mi50 minSW 1610.00 miFair59°F46°F62%1025.1 hPa
Fort Lewis / Gray U. S. Army Airfield, WA24 mi1.8 hrsWSW 910.00 miLight Rain51°F51°F99%1025.1 hPa

Wind History from SEA (wind in knots)
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
3
PM
Last 24hrE10SE10S12S12
G21
S14S19
G26
S15
G21
SW17
G26
S15S15
G23
S14
G22
SW16
G24
SW17
G30
SW17
G24
S11
G19
S7SW8S14SW13S14
G21
SW10S11
G17
SW19
G26
S13
1 day agoS14
G22
S17
G22
S11S12SW14
G23
S15S10S7S9SE8SE6SE6SE4SE6E10E8SE6E8E5SE6CalmSE6E7SE9
2 days agoS10SW9SE11S8SE9SE9S10S10SW8S11
G19
S11SW14
G19
SW10
G19
SW9S8S11
G16
S10S13
G21
S13S11S10S11SW16S16
G24

Tide / Current Tables for Des Moines, Washington
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Des Moines
Click for Map
Sun -- 01:02 AM PDT     0.05 feet Low Tide
Sun -- 07:38 AM PDT     Sunrise
Sun -- 07:53 AM PDT     11.40 feet High Tide
Sun -- 10:23 AM PDT     Moonrise
Sun -- 01:29 PM PDT     5.18 feet Low Tide
Sun -- 06:08 PM PDT     Sunset
Sun -- 06:46 PM PDT     10.45 feet High Tide
Sun -- 08:11 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.800.72.44.87.49.61111.410.99.67.96.35.35.36.27.69.110.210.49.78.36.23.8

Tide / Current Tables for Skagit Bay, 1 mile S of Goat Island, Washington Current
   EDIT      (on/off)   Help   One Week of Data
Skagit Bay
Click for Map
Sun -- 01:07 AM PDT     2.01 knots Max Flood
Sun -- 05:06 AM PDT     -0.08 knots Slack
Sun -- 07:39 AM PDT     Sunrise
Sun -- 07:48 AM PDT     -1.45 knots Max Ebb
Sun -- 10:23 AM PDT     Moonrise
Sun -- 10:56 AM PDT     0.00 knots Slack
Sun -- 01:20 PM PDT     1.63 knots Max Flood
Sun -- 04:39 PM PDT     -0.02 knots Slack
Sun -- 06:08 PM PDT     Sunset
Sun -- 07:51 PM PDT     -1.50 knots Max Ebb
Sun -- 08:12 PM PDT     Moonset
Sun -- 10:46 PM PDT     0.06 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.821.91.61.20.2-1-1.4-1.4-1.3-0.90.21.21.61.61.30.8-0.6-1.1-1.4-1.5-1.3-0.90.5

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 (18,4,5,8)
      (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.