Monday, July22, 2019 L-36.com


Marine Weather and Tides
Normandy Park, WA

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Sunrise 5:33AMSunset 8:57PM Monday July 22, 2019 4:21 PM PDT (23:21 UTC) Moonrise 10:57PMMoonset 10:17AM Illumination 67% Phase: Waning Gibbous; Moon at 21 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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PZZ135 Puget Sound And Hood Canal- 248 Pm Pdt Mon Jul 22 2019
Tonight..Variable wind 5 to 15 kt. Wind waves 2 ft or less.
Tue..N wind to 10 kt. Wind waves 1 ft or less.
Tue night..N wind 5 to 15 kt becoming S after midnight. Wind waves 2 ft or less. A chance of showers in the evening. A slight chance of showers after midnight.
Wed..S wind 5 to 15 kt easing to 10 kt in the afternoon. Wind waves 2 ft or less.
Wed night..N wind 5 to 15 kt becoming ne after midnight. Wind waves 2 ft or less.
Thu..Light wind becoming N to 10 kt in the afternoon. Wind waves 1 ft or less.
Thu night..N wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Fri..Light wind becoming N 5 to 15 kt. Wind waves 2 ft or less.
Sat..Light wind becoming N to 10 kt. Wind waves less than 1 ft becoming 1 ft or less.
PZZ100 248 Pm Pdt Mon Jul 22 2019
Synopsis for the northern and central washington coastal and inland waters..Weak high pressure is near the coast with low pressure inland. Marine air will push into western washington through this evening and a stronger marine push will develop Tuesday evening. Westerly gales are likely in the strait of juan de fuca Tuesday evening.


7 Day Forecast for Marine Location Near Normandy Park, WA
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location: 47.4, -122.35     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 222209
afdsew
area forecast discussion
national weather service seattle wa
309 pm pdt Mon jul 22 2019

Synopsis A trough of low pressure will approach the area on
Tuesday, carrying with it a weak cold front. Showers and a few
thunderstorms will develop across the cascades tues afternoon,
with scattered showers developing across portions of the northern
interior by tues evening. Conditions gradually clear Wed and
thurs as a low amplitude ridge sets in. Troughing returns Friday
for a few showers followed by dry NW flow aloft for the weekend.

Short term tonight through Thursday The synoptic pattern this
afternoon is characterized by a longwave trough of low pressure
extending roughly from the gulf of alaska, into the northern
pacific, and towards the western us coastline. Downstream from
this, a high amplitude ridge, centered around the 4 corners area,
encompasses much of the desert southwest great basin southern
rockies and extends northward into the canadian rockies. A
longwave trough can then be found downstream of this ridge across
much of the us east of the mississippi river. At the sfc, a
weakening front was detected offshore the pacific NW coast, with a
large area of high pressure encompassing much of the great plains
and midwest in the wake of a nearly stationary boundary extending
from the southern plains into the northeast.

Closer to home, the longwave pacific trough will be the main
sensible weather maker for western washington. Most of the shorter
wave activity has pulled north of the local area, however, the
aforementioned weakening frontal boundary is associated with one
of these northward moving shortwaves. The mid and high level
cloud shield pushing into the olympic peninsula (seen well in ir
and vis imagery this afternoon) is evidence of its presence. Most
of the state this afternoon is under sunny skies with temperatures
cooler than the previous few days. Some of these pre-frontal mid
and high clouds will pass over the portions of the area into the
evening hours, with some additional cloud cover remaining over the
cascades. The remainder of today will be dry and overall
pleasant.

Overnight tonight, a much stronger shortwave trough will rotate
about the broader scale pattern and deepen the troughing pattern
across the area. Mid level height falls will accompany this while
the lower levels feature another, stronger marine push. This
should bring the stratus clouds further inland than what was
experienced this morning, expecting this layer to reach the sound
by daybreak. The stratus should then gradually diminish towards
the afternoon, but given disturbed mid and upper levels, there
will likely be cloud cover above the marine layer. So expecting
noticeably more cloud cover for much of Tuesday. In addition, the
cascades will remain in an unstable environment coinciding with
moisture and lift. This should allow for the development of
showers and few thunderstorms across these mountains by the
afternoon. The actual shortwave does not move onshore until
tomorrow evening night where it will try to take on a slight
negative tilt thru the area. Scattered showers will likely
develop as this happens, mainly from the south sound to the
northern border. These showers will gradually lift northward
through the area into early Wednesday where we should then begin
to "clear out." cloud cover will hang a bit Wednesday, especially
so over the north where any showers may linger into the afternoon.

Heights should rise quickly thru the day Wednesday as the system
lifts out of the area.

Thursday looks like a nice day across the area as the system
fully clears the area and a low amplitude ridge builds in. Should
see generally sunny skies with temps rebounding back towards 80.

Kovacik

Long term Friday through Monday The long term begins with the
low amplitude ridge pushing east of the area, ready to be replaced
by a weak trough pattern. It appears a shortwave trough will clip
over the area which may be strong enough to squeeze out a few
showers across the area as it passes. Expect any activity to begin
to dwindle in coverage into Saturday. The region then appears to
be under the influence of NW flow aloft through the remainder of
the weekend. The atmosphere looks to be dry at this time so will
keep a dry forecast in place for now. In fact this pattern may
hold through early next week.

Kovacik

Aviation The air is unstable over the cascades but stable
elsewhere. Marine clouds along the coast will spread inland
overnight. Tuesday should see morning clouds breaking up for the
afternoon. An upper trough will move through the area Tuesday night.

Southwest flow aloft.

Ksea... Morning clouds are a good bet Tuesday. The wind has been
variable around puget sound this afternoon, so until it chooses a
direction will continue to show light and variable winds.

Marine There is weak high pressure near the coast with low
pressure inland. The westerly push in the strait could reach gales
this evening but for now will keep with 20-30kt and go for gales
Tuesday evening when the wrfgfs showed a stronger push induced
by the upper trough moving through the area. The rest of the week
Wednesday through Saturday should see small craft advisory strength
westerlies in the strait of juan de fuca at times although with
another upper trough reaching the area Friday night maybe a round of
gales could occur around that time as well.

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... Small craft advisory until 11 pm pdt this evening for san juan
county.

Pz... Gale watch from Tuesday afternoon through late Tuesday night for
central u.S. Waters strait of juan de fuca-east entrance
u.S. Waters strait of juan de fuca.

Small craft advisory until 5 pm pdt Tuesday for central u.S.

Waters strait of juan de fuca-east entrance u.S. Waters
strait of juan de fuca.

Small craft advisory until 11 pm pdt this evening for admiralty
inlet-northern inland waters including the san juan islands.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TCMW1 - 9446482 - Tacoma Met, WA 9 mi51 min NW 8.9 G 11
TCNW1 - 9446484 - Tacoma, WA 10 mi51 min 79°F 56°F1017.3 hPa
WPOW1 - West Point, WA 19 mi81 min NE 5.1 G 6 69°F 1017.6 hPa (-0.3)56°F
46121 22 mi42 min 75°F 1017.3 hPa53°F
46120 25 mi50 min 65°F 1016.6 hPa56°F

Wind History for Tacoma MET, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Seattle, Seattle-Tacoma International Airport, WA3 mi28 minSW 610.00 miA Few Clouds81°F48°F32%1017.8 hPa
Boeing Field - King County International Airport, WA9 mi28 minVar 310.00 miFair83°F46°F28%1016.8 hPa
Renton Municipal Airport, WA10 mi28 minW 710.00 miFair82°F48°F31%1017.2 hPa
Tacoma, Tacoma Narrows Airport, WA15 mi28 minWSW 710.00 miFair79°F48°F34%1016.9 hPa
Tacoma / McChord Air Force Base, WA18 mi83 minNW 910.00 miFair81°F57°F44%1017.5 hPa
Pierce County-Thun Field, WA21 mi26 minN 010.00 miFair84°F46°F27%1017.3 hPa
Bremerton, Bremerton National Airport, WA23 mi25 minW 510.00 miFair82°F51°F34%1018.6 hPa

Wind History from SEA (wind in knots)
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Last 24hr4N8N8N8NW6N6NW3CalmCalmCalmSW4S3SW5SW4SW5S8S7S5SW8SW11SW9SW6SW8SW6
1 day agoN10N8N9N9NW5N9N7N6N6N9N9CalmNW3NW3NE3CalmW3W5W75W7W9NW9NW6
2 days agoN8N11NW10N11N9N10N11N6NE7N5NE4NE5NE7NE7N8N8N6N6N7N8N9N6N10N9

Tide / Current Tables for Des Moines, Washington
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Des Moines
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Mon -- 03:49 AM PDT     4.97 feet Low Tide
Mon -- 05:35 AM PDT     Sunrise
Mon -- 08:49 AM PDT     8.47 feet High Tide
Mon -- 11:17 AM PDT     Moonset
Mon -- 03:15 PM PDT     1.59 feet Low Tide
Mon -- 08:55 PM PDT     Sunset
Mon -- 10:12 PM PDT     11.59 feet High Tide
Mon -- 11:56 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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9.786.45.355.56.47.48.28.586.95.43.82.41.61.93.25.17.39.410.911.611.3

Tide / Current Tables for Skagit Bay, 1 mile S of Goat Island, Washington Current
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Skagit Bay
Click for Map
Mon -- 01:20 AM PDT     0.00 knots Slack
Mon -- 03:34 AM PDT     1.36 knots Max Flood
Mon -- 05:36 AM PDT     Sunrise
Mon -- 06:55 AM PDT     -0.00 knots Slack
Mon -- 09:59 AM PDT     -1.26 knots Max Ebb
Mon -- 11:18 AM PDT     Moonset
Mon -- 12:38 PM PDT     0.01 knots Slack
Mon -- 03:49 PM PDT     1.69 knots Max Flood
Mon -- 07:37 PM PDT     -0.00 knots Slack
Mon -- 08:56 PM PDT     Sunset
Mon -- 10:38 PM PDT     -1.34 knots Max Ebb
Mon -- 11:57 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-1-0.60.81.31.31.10.8-0.3-0.9-1.2-1.3-1.1-0.70.51.21.61.71.51.20.7-0.6-1.1-1.3-1.3

Weather Map and Satellite Images
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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 (19,4,5,8)
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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.