Thursday, August22, 2019 L-36.com


Marine Weather and Tides
Leavenworth, WA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:05AMSunset 8:02PM Thursday August 22, 2019 2:13 AM PDT (09:13 UTC) Moonrise 10:27PMMoonset 12:18PM Illumination 58% 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- 818 Pm Pdt Wed Aug 21 2019
Tonight..NE wind 5 to 15 kt becoming S to 10 kt after midnight. Wind waves 2 ft or less. Showers likely in the evening then a slight chance of showers after midnight.
Thu..NW wind to 10 kt becoming N in the afternoon. Wind waves 1 ft or less.
Thu night..NE wind 5 to 15 kt. Wind waves 2 ft or less.
Fri..N wind to 10 kt rising to 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Fri night..N wind 5 to 15 kt becoming variable to 10 kt after midnight. Wind waves 2 ft or less.
Sat..S wind to 10 kt becoming sw 5 to 15 kt in the afternoon. Wind waves 2 ft or less.
Sat night..NW wind 5 to 15 kt in the evening becoming light. Wind waves 2 ft or less.
Sun..Light wind becoming N to 10 kt. Wind waves 1 ft or less.
Mon..N wind to 10 kt rising to 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 818 Pm Pdt Wed Aug 21 2019
Synopsis for the northern and central washington coastal and inland waters..Post-frontal onshore flow will continue tonight then ease Thursday morning. A weak frontal system will approach the area on Friday and dissipate over the area on Saturday. The flow will turn northerly and offshore early next week.


7 Day Forecast for Marine Location Near Leavenworth, WA
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location: 47.7, -120.91     debug


Area Discussion for - Spokane, WA
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Fxus66 kotx 220536
afdotx
area forecast discussion
national weather service spokane wa
1036 pm pdt Wed aug 21 2019

Synopsis
The passage of a cold front tonight will bring gusty winds and a
chance for showers to much of the inland northwest. Shower
chances linger over idaho Thursday, and then limited chances linger
along the canadian border Friday afternoon. Expect cooler
temperatures Thursday with highs in the upper 70s and 80s which
will last through the middle of next week. Otherwise the weather
looks mostly dry.

Discussion
Update sent to fine tune winds and pops for the remainder of tonight.

The cold front is slowly edging toward the wa id border and light
showers continue to stream up from NE oregon across the palouse...

spokane area... And into the okanogan highlands and N cascades.

We have a had a few lightning strikes near the blue mtns and la
crosse so did expand the thunder threat eastward into the camas
prairie and l-c valley however instability parameters remain subpar
and not overly confident we will see additional strikes overnight.

Winds have been gusty through the evening as the band of showers and
front came across the columbia basin. Gusts of 30-40 mph were common
from moses lake to pullman and into spokane. The showers were a bit
less intense than some guidance suggested which did keep the wind
gusts on the low end of forecast values which was a good thing and
did lead to less of a punch and potential impacts. The cooler
maritime air will continue to push into idaho the next few hours and
with temperature dewpoint spreads still near 30f, will continue to
have a threat for gusts on the order of 25-35 mph. Sb
impacts

Aviation
06z tafs: a band of showers along a cold front continues to
slowly limp east into idaho this evening. Local gusts of
20-30 mph will remain possible in the idaho panhandle, otherwise
the main wind threat has ended for the terminals. The air mass
has moistening considerably and will bring a threat for MVFR
stratus from pullman to spokane to couer d alene between 10-18z.

Confidence is moderate given the support in the model guidance
but climatologically, this would be a rare event. A drier
westerly flow settles in for Thursday with fair afternoon cumulus
expected through 00z. Sb

Preliminary point temps pops
Spokane 57 77 53 81 55 81 60 10 0 0 0 0
coeur d'alene 59 76 52 80 54 80 60 20 0 0 0 0
pullman 55 75 48 80 51 80 70 10 0 0 0 0
lewiston 65 81 58 87 61 88 60 10 0 0 0 0
colville 50 83 45 85 44 85 60 10 0 0 0 0
sandpoint 58 74 51 78 50 78 60 50 0 0 10 0
kellogg 60 72 54 77 56 76 80 40 0 0 0 0
moses lake 55 83 51 85 54 85 10 0 0 0 0 0
wenatchee 59 82 59 84 61 82 10 0 0 0 0 0
omak 57 84 57 83 55 84 50 0 0 0 0 0

Otx watches warnings advisories
Id... None.

Wa... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
WPOW1 - West Point, WA 81 mi74 min Calm G 1 59°F 1016.5 hPa (+0.4)55°F
TCMW1 - 9446482 - Tacoma Met, WA 85 mi62 min NW 4.1 G 5.1

Wind History for Seattle, Puget Sound, WA, WA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Stampede Pass, WA36 mi78 minVar 50.25 miFog53°F51°F93%1015.1 hPa

Link to 5 minute data for KSMP

Wind History from SMP (wind in knots)
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Last 24hr3SW3SW3------------------W7W7444Calm335SW656
1 day agoCalmCalmCalmCalmCalmCalmCalm44CalmCalm35SW5SW6SW55SW5SW55344SW4
2 days agoCalm45444345454654SW55S5SW45SW4CalmCalmSW3

Tide / Current Tables for Marysville, Quilceda Creek, Washington
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Marysville
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Thu -- 04:50 AM PDT     2.09 feet Low Tide
Thu -- 06:12 AM PDT     Sunrise
Thu -- 10:49 AM PDT     8.01 feet High Tide
Thu -- 01:24 PM PDT     Moonset
Thu -- 04:35 PM PDT     4.35 feet Low Tide
Thu -- 08:09 PM PDT     Sunset
Thu -- 10:18 PM PDT     9.75 feet High Tide
Thu -- 11:31 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.26.753.42.42.12.745.46.87.887.66.965.14.54.45.26.47.89.19.79.6

Tide / Current Tables for Everett, Washington
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Everett
Click for Map
Thu -- 04:19 AM PDT     2.32 feet Low Tide
Thu -- 06:13 AM PDT     Sunrise
Thu -- 10:40 AM PDT     8.26 feet High Tide
Thu -- 01:24 PM PDT     Moonset
Thu -- 04:05 PM PDT     4.84 feet Low Tide
Thu -- 08:09 PM PDT     Sunset
Thu -- 10:09 PM PDT     10.06 feet High Tide
Thu -- 11:31 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.16.44.63.12.42.53.44.76.17.48.18.27.876.15.24.85.16.17.38.69.6109.8

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Spokane, WA (5,6,7,8)
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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.