Thursday, October19, 2017 L-36.com


Marine Weather and Tides
Whidbey Island Station, 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 7:36AMSunset 6:13PM Thursday October 19, 2017 7:28 AM PDT (14:28 UTC) Moonrise 6:18AMMoonset 5:42PM Illumination 1% Phase: New Moon; Moon at 29 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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PZZ132 East Entrance U.s. Waters Strait Of Juan De Fuca- 257 Am Pdt Thu Oct 19 2017
.small craft advisory in effect until noon pdt today...
Today..SE wind 15 to 25 kt becoming sw 10 to 20 kt in the afternoon. Wind waves 2 to 4 ft. Showers likely in the morning then showers in the afternoon.
Tonight..SE wind to 10 kt. Wind waves 1 ft or less. Showers.
Fri..S wind 10 to 20 kt becoming W 20 to 30 kt in the afternoon. Wind waves 1 to 3 ft building to 3 to 5 ft in the afternoon. Showers likely.
Fri night..W wind 20 to 30 kt becoming se 5 to 15 kt after midnight. Wind waves 3 to 5 ft subsiding to 2 ft or less after midnight.
Sat..SE wind 20 to 30 kt. Wind waves 3 to 5 ft.
Sat night..SE wind 5 to 15 kt becoming to 10 kt after midnight. Wind waves 2 ft or less.
Sun..S wind to 10 kt becoming W 10 to 20 kt. Wind waves 1 ft or less building to 1 to 3 ft.
Mon..W wind to 10 kt becoming se. Wind waves 1 ft or less.
PZZ100 257 Am Pdt Thu Oct 19 2017
Synopsis for the northern and central washington coastal and inland waters..A front will continue to slowly move inland today. Onshore flow will prevail behind the front through Friday with swells reaching 20 feet over the coastal waters later today before subsiding Friday. Another strong frontal system will move through the area Saturday and Sunday. The flow will turn offshore early next week.

7 Day Forecast for Marine Location Near Whidbey Island Station, WA
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location: 48.32, -122.83     debug


Area Discussion for - Seattle, WA
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Fxus66 ksew 191117
afdsew
area forecast discussion
national weather service seattle wa
330 am pdt Thu oct 19 2017

Synopsis A wet frontal system will push south with a transition
from rain to showers today. Snow levels will slowly fall through
Friday with snow accumulation likely in the mountains and possibly
at higher passes. Another strong front will affect western washington
with another round of heavy rain and strong winds. Drier weather is
expected to develop early next week as a ridge of high pressure
strengthens.

Short term Radar indicates the heaviest rainfall this morning is
along a nearly stalled frontal band from the south washington coast
northeast through the i-5 metro corridor up to seattle and eastward.

Rain has decreased to showers behind the front over the olympic
peninsula and north interior. Rain amounts the past 24 hours range
from 2 to 5 inches in the mountains, with locally higher amounts in
the olympics. This has resulted in some minor river flooding. See
the hydrology section below for further details and the latest flood
bulletin for current river specific information.

Rain will taper to showers across parts of the area today. However,
another frontal waves still offshore will move into western
washington this afternoon. Amounts do not look particularly heavy
with this feature but could keep it rather damp across the area.

Winds have eased for the time being with breezy conditions through
Friday. A lull in shower activity is expected between systems
tonight through Friday night.

Models remain in fairly good agreement that the next strong system
will affect the area over the weekend. A negative tilt warm front
will spread rain into northwest oregon late Friday night. The warm
front will lift north into western washington on Saturday with
increasing rain and breezy to locally windy conditions. The
southeast gradient will be tight but the direction is not favorable
for high wind in most spots. However, the coast and north interior
would be the spots to watch for the highest wind gusts. Elsewhere it
will be windy Saturday night and some advisory level wind gusts
possible. Statements to address specifics on the wind and rain this
weekend are likely to be issued today as new model data arrives.

Long term rainfall will gradually ease Sunday night and
Monday. River flooding could still be occurring on some rivers. Long
range models show a drying trend Monday and Tuesday. The ecwmf
differs from the GFS and brings some light rain through on
Wednesday. Kept low pops in the forecast. The overall pattern looks
to shift toward a more benign pattern with mostly dry weather and
mild temperatures. Mercer

Aviation A frontal system will continue to slowly sag
southeast through the area today with southwest flow aloft and low
level onshore flow behind the front. The air mass is moist and
stable. It will become unstable near the coast later today.

Ksea... Despite a deep moist air mass, low clouds have been
decreasing. Best guess is it will be mostly mid clouds this morning
then MVFR low clouds this afternoon as another batch of rain
develops. South wind around 10 knots today. Schneider

Marine A front will continue to slowly shift inland today.

Onshore flow will prevail behind the front into Friday. Small craft
advisory strength winds will gradually ease today although they
could linger in spots into tonight and Friday.

Another vigorous frontal system will move through the area Saturday
and Sunday. Onshore flow behind the front will ease and eventually
turn weakly offshore later Monday. 20-24 foot west swell will affect
the coastal waters later today through Friday morning before easing
below 20 feet later Friday. Schneider

Hydrology 2 to 5 inches of rain fell over the north and central
cascades the past 24 hours. Heaviest amounts fell overnight and the
south facing slopes of the olympics had locally higher amounts. This
drove the skokomish river in mason county to just below flood stage
before starting to fall. The warning and watch for the skokomish
river in mason county will be ended early this morning.

Other rivers are still rising, mainly the nooksack, stillaguamish,
and skagit. The nooksack at cedarville has the highest chance of
reaching flood stage this morning, but other rivers could come
close. Refer to the latest flood bulletin for current information.

The lowlands had 1 to 2 inches of rain with locally higher amounts.

Rain will start to decrease this morning, especially from seattle
north. However, significant ponding of waters on roadways will be
likely during the morning commute. Clogged drainages may cause
water to pool in some intersections. Motorists should exercise
caution.

Rivers will recede later Thursday through Friday night as snow
levels drop to 3000-3500 feet and precipitation becomes more
showery.

Hydrologically significant precipitation appears increasingly
likely Saturday through Sunday across the southern half of the
forecast area (especially from a stevens pass-everett-southern
olympics line southward). Many rivers may reach flood stage if
precipitation develops as expected. At this time it appears that
any flooding that occurs will be minor.

Conditions will dry out starting later Sunday or Monday of next
week allowing all rivers to recede.

Sew watches warnings advisories
Wa... Flood watches and warnings in effect for portions of the area.

Refer to the latest flood bulletins for current information.

High surf advisory from 11 am Thursday to 6 am pdt Friday for
central coast-north coast.

Pz... Small craft advisory for rough bar until 5 pm pdt Friday for
grays harbor bar.

Small craft advisory until 6 am pdt Friday 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 noon pdt today for admiralty inlet-
east entrance u.S. Waters strait of juan de fuca-northern
inland waters including the san juan islands.

Small craft advisory until 9 am pdt this morning for puget sound
and hood canal-west entrance u.S. Waters strait of juan de
fuca.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SISW1 - Smith Island, WA 1 mi29 min SE 18 G 20 52°F 999.3 hPa (-1.2)
PTWW1 - 9444900 - Port Townsend, WA 15 mi41 min ESE 4.1 G 8.9 53°F 51°F1000.1 hPa
FRDW1 - 9449880 - Friday Harbor, WA 18 mi53 min S 7 G 13 52°F 50°F1000.1 hPa
PBFW1 - Padilla Bay Reserve, WA 22 mi59 min S 12 53°F 1000 hPa50°F
PTAW1 - 9444090 - Port Angeles, WA 35 mi53 min 6 G 8.9 51°F 49°F999.2 hPa
CHYW1 - 9449424 - Cherry Point, WA 38 mi41 min SE 11 G 16 52°F 50°F998.7 hPa
CPMW1 38 mi41 min SE 19 G 23 53°F 50°F
46120 45 mi36 min WSW 16 54°F 1000.5 hPa50°F

Wind History for Port Townsend, WA
(wind in knots)    EDIT      (on/off)   Help
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SE14
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Whidbey Island Naval Air Station - Ault Field, WA10 mi93 minSE 1210.00 miOvercast56°F48°F75%1001.5 hPa
Friday Harbor Airport, WA17 mi36 minSE 510.00 miOvercast51°F51°F100%999.8 hPa
Burlington/Mount Vernon, Skagit Regional Airport, WA24 mi54 minSSE 8 G 1510.00 miOvercast54°F50°F88%1000.7 hPa

Wind History from NUW (wind in knots)
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SW7SW3W5S3SE10SE15
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1 day agoSE25
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W13W18
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W13W10NW13NW8S4SE6S4E5SE5E5E9E11SE12
G20
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2 days agoSE7SE9SE11SE10S16
G23
SE14S9S8N3NE3E5E8SE7SE8SE8SE10SE12SE16
G26
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G25
SE13
G20
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G29
SE22
G34

Tide / Current Tables for Smith Island, Washington
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Smith Island
Click for Map
Thu -- 04:58 AM PDT     6.29 feet High Tide
Thu -- 07:17 AM PDT     Moonrise
Thu -- 07:37 AM PDT     Sunrise
Thu -- 09:55 AM PDT     2.68 feet Low Tide
Thu -- 12:12 PM PDT     New Moon
Thu -- 04:30 PM PDT     6.62 feet High Tide
Thu -- 06:13 PM PDT     Sunset
Thu -- 06:41 PM PDT     Moonset
Thu -- 10:21 PM PDT     0.50 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.13.14.25.266.35.94.93.82.92.72.93.64.45.266.56.55.74.32.61.20.60.6

Tide / Current Tables for Smith Island, 1.4 miles SSW of, Washington Current
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Smith Island
Click for MapFlood direction 90 true
Ebb direction 280 true

Thu -- 12:07 AM PDT     0.00 knots Slack
Thu -- 03:02 AM PDT     0.89 knots Max Flood
Thu -- 06:19 AM PDT     -0.00 knots Slack
Thu -- 07:17 AM PDT     Moonrise
Thu -- 07:37 AM PDT     Sunrise
Thu -- 09:30 AM PDT     -1.06 knots Max Ebb
Thu -- 12:12 PM PDT     New Moon
Thu -- 12:19 PM PDT     0.00 knots Slack
Thu -- 03:02 PM PDT     0.70 knots Max Flood
Thu -- 05:57 PM PDT     -0.00 knots Slack
Thu -- 06:14 PM PDT     Sunset
Thu -- 06:42 PM PDT     Moonset
Thu -- 09:37 PM PDT     -1.37 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.10.40.80.90.80.50.1-0.3-0.8-1-1-0.7-0.20.30.60.70.60.4-0-0.5-1-1.3-1.3-1

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Seattle, WA (10,2,3,4)
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Ground Weather Radar Station Seattle/Tacoma, WA
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weather_mapweather_map weather_map

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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.