Thursday, November22, 2018 L-36.com


Marine Weather and Tides
Medina, WA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:24AMSunset 4:27PM Thursday November 22, 2018 3:42 AM PST (11:42 UTC) Moonrise 4:38PMMoonset 6:27AM Illumination 100% Phase: Full Moon; Moon at 14 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- 222 Am Pst Thu Nov 22 2018
.small craft advisory in effect from this afternoon through this evening...
Today..S wind 5 to 15 kt rising to 15 to 25 kt in the afternoon. Wind waves 1 or 2 ft building to 2 to 4 ft. A chance of rain in the morning then rain in the afternoon.
Tonight..S wind 20 to 30 kt easing to 15 to 25 kt after midnight. Wind waves 3 to 5 ft. Rain in the evening then rain likely after midnight.
Fri..S wind 5 to 15 kt becoming sw to 10 kt in the afternoon. Wind waves 2 ft or less. Rain likely.
Fri night..SW wind to 10 kt. Wind waves 1 ft or less.
Sat..S wind to 10 kt. Wind waves 1 ft or less.
Sat night..SE wind to 10 kt. Wind waves 1 ft or less.
Sun..SE wind to 10 kt. Wind waves 1 ft or less.
Mon..S wind 5 to 15 kt. Wind waves 2 ft or less.
PZZ100 222 Am Pst Thu Nov 22 2018
Synopsis for the northern and central washington coastal and inland waters..A front will move through the waters today with gale force winds expected for the coastal waters and small craft advisory conditions for the inland waters. An active weather pattern will persist through the middle of next week.


7 Day Forecast for Marine Location Near Medina, WA
   Hourly   EDIT   Help
location: 47.65, -122.29     debug


Area Discussion for - Seattle, WA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksew 221128
afdsew
area forecast discussion
national weather service seattle wa
328 am pst Thu nov 22 2018

Synopsis
Broad troughing across the eastern pacific will bring several
storm systems to the area today and Friday. Lowland rain and
mountain snowfall will be likely... With a winter storm warning in
effect thru early Saturday for elevations above 3000ft in olympics
and cascades. A lull in active weather will occur most of the
weekend before a series of potentially stronger frontal systems
affect the area next week.

Short term
**winter storm warning for elevations above 3000ft in olympics and
cascades today thru Saturday morning***
looping the most recent water vapor imagery this morning reveals a
very active pattern across the northeast pacific. Broad cyclonic
flow can be depicted extending from the aleutian islands thru the
gulf of alaska to near the pacnw coastline. Embedded within this
broad flow regime exists numerous shortwave perturbations... A few
of which will be affecting the local area over the next 24-48hrs.

A quick sfc analysis reveals a weakly stalled frontal boundary
across far western washington... With another cold front offshore
to the west.

Thanksgiving day: mid and upper level energy over the pacific
will move into the region today. A strong shortwave trough
currently approaching ~130w will begin to make progress to the
washington coastline between 12-18z this morning. As it does
so... Strong jet streak on its upstream side will help the wave
take on a negative tilt... Indicative of stronger dynamics. This
wave is also associated with even colder mid level air than the
previous few systems. It is expected to move across the majority
of western washington between 18z Thu and 06z fri. As it does
so... Snow levels will drop noticeably and mid level lapse rates
will steepen, confirmed by projected 100-200j kg mucape. This will
likely enhance precipitation located along and ahead of the
wave's sfc frontal system. Given this evolving scenario... Isolated
thunderstorms will be possible across the coastal waters early
this morning... With the potential spreading inland across far
western and southwestern washington thru the afternoon hours. In
addition... Winter weather is a concern. Beginning in the olympics
above 3000ft ... Winter storm watch was upgraded to winter storm
warning given holiday travel amidst wintry conditions. Snowfall
amounts for warning criteria are borderline at best but could
become enhanced in a destabilizing environment today.

Precipitation will continue to spread inland thru the day.

Instability will likely carry over into the afternoon but
thunderstorm chances seem somewhat less likely across the interior.

Altho strong dynamics will be in place... Best jet energy and
strongest height falls look to be displaced near the wa or
border as the day progresses. This casts some uncertainty in
snowfall across the cascades as well. Winter storm watch was also
upgraded to a warning for elevations above 3000ft mainly due to
enhanced holiday travel in wintry conditions. At this time... It
is likely steven's pass will see 6 inches or more over the next
24hrs... With snoqualmie pass much less certain. Instability may
once again enhance snowfall in some places across the cascades.

Following very closely behind today's storm system will be another
closed shortwave... Expected to barrel down from the NW on Friday.

Strong lift supplied by this low in addition to even colder mid
level temps will again allow for a destabilizing atmosphere and
lowering of snow levels. Higher terrain above 3000ft will likely
pick up several more inches of snow on Friday... With another round
of rain in the lowlands. At this time amounts across stevens pass
look to top off above 10 inches... With snoqualmie still much less
certain. Luckily... This system will be fast moving and will exit
the area Friday night. Heavier snow should taper to snow showers
Friday night with little additional accumulation.

A brief break will welcome us on Saturday as a weak shortwave
ridge passes overhead. Lingering light showers may be possible the
first half of the day but compared to the previous few days it
will seem quite dry. By late in the day Saturday another frontal
system will approach the coast as a weak shortwave passes thru the
flow. It will likely rain across far western zones into early
Sunday but the wave seems to get caught in another building
shortwave ridge so it seems this sfc boundary will stall and fade
out. Guidance having a hard time deciding how far inland to
spread precip before front fizzles out. Have opted to keep most
areas east of the sound fairly dry for now.

Kovacik

Long term
An active pattern returns right in time for the next work week.

There is decent agreement amongst deterministic ECMWF and GFS in
regards to strong energy across the pacific and with what appears
to be a decent front moving into the region. This will begin to
raise hydro concerns if current trends continue. Heavy rainfall is
a good possibility at this point Monday and Tuesday. Showers
remain likely thereafter on Wednesday as pattern doesn't really
break.

Towards the end of next week... GFS still wants to develop a deep
cyclone just west of the area... While ec shows more of an
open... Yet still strong... Trough. A comparison of these two
solutions to eps gem geps ensemble guidance yields a forecast
bias towards the ECMWF for now. Regardless... Yet another period of
deeper moisture looks probable at this point.

Kovacik

Aviation Rain over W wa this early morning generally from
puget sound to points east... Although some lingering showers do
remain over northern portions of the olympic peninsula. Cigs
generallyVFR to MVFR over the area... Although terminals within
the northern third of the olympic peninsula are reporting ifr
conditions. A secondary front is already visible on current ir
satellite imagery and is expected to bring another round of rain
to the area this afternoon and evening. The air is moist and will
become increasingly unstable behind the front this afternoon as
the air aloft cools. While clouds are expected to obscure the
mountains for much of today... The aforementioned increasing
instability will allow for CIGS to improve some... With widespread
vfr to MVFR conditions expected. Smr
ksea... Rain continues to make its way through the terminal with the
back edge of the precip not expected until between 15-17z. Recent
uptick in wind speeds may allow for CIGS to remain generallyVFR
although possibly dipping down into MVFR during periods of rain.

Will update TAF to fall in line with this thinking. Some break in
the precip expected midday... Then another batch of rain will arrive
by evening. Winds will remain southerly with speeds of 8-12 kts. Smr

Marine A front will move through the waters today. Gales are
expected over the coastal waters and small craft advisory conditions
are expected elsewhere. The weather will remain active as as
additional fronts move move through the area into next week--
the global models show four or five distinct frontal systems
over the next week--not unusual for this time of year. Any
of these fronts will be capable of gale force winds for at least the
coastal waters and entrances to the strait and admiralty inlet, with
at least small craft advisory force winds elsewhere.

Hydrology
Steady rainfall has occurred thru much of the night... Tho no
flooding is indicated at this time. Between now and Saturday
looking at roughly 1-3 inches of precip across the mountainous
terrain and near an inch or so in the lowlands. These amounts
could be enhance somewhat over the next 24 hours by isolated
convective cells within broader rain shields as an unstable
atmosphere develops. Do not think this will cause flooding between
now and the weekend given isolated nature. After a break this
weekend... There is concern early next week as several strong
frontal systems may approach the area. Several inches of rain
will be possible thru the course of next week so hydro concerns
will be increasing.

Kovacik

Sew watches warnings advisories
Wa... Winter storm warning until 4 am pst Saturday for cascades of
pierce and lewis counties-cascades of snohomish and king
counties-cascades of whatcom and skagit counties.

Winter storm warning until 4 pm pst Friday for olympics.

Pz... Gale warning until 4 pm pst this afternoon 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 2 am pst Friday for
grays harbor bar.

Small craft advisory until midnight pst tonight for admiralty
inlet-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-west entrance u.S.

Waters strait of juan de fuca.

Small craft advisory from 3 pm this afternoon to midnight pst
tonight 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
EBSW1 - 9447130 - Seattle, WA 4 mi43 min SE 6 G 11 49°F 52°F1004 hPa (-0.5)
WPOW1 - West Point, WA 8 mi43 min S 18 G 22 50°F 1003.8 hPa (-0.9)47°F
46120 10 mi37 min NE 7.8 50°F 1002.6 hPa47°F
TCNW1 - 9446484 - Tacoma, WA 27 mi43 min 51°F 53°F1004.8 hPa (-0.0)
TCMW1 - 9446482 - Tacoma Met, WA 27 mi43 min SSW 9.9 G 16
46121 35 mi35 min 50°F 1004.1 hPa48°F
PTWW1 - 9444900 - Port Townsend, WA 40 mi43 min SE 7 G 8.9 49°F 49°F1003.1 hPa (-0.8)

Wind History for Seattle, Puget Sound, WA, WA
(wind in knots)    EDIT      (on/off)   Help
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
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
Last
24hr
E1
G4
N1
G4
SE2
SW2
--
SW4
W4
G8
--
SW5
SE4
G7
SW3
SE5
W2
NW2
NW2
--
--
W3
NW3
--
S2
G5
SE5
--
SE6
G11
1 day
ago
SE3
SE2
W1
S2
SE2
S3
SW2
SW3
W2
S1
W1
S1
SE3
SE3
NW1
NW1
NW3
NW2
--
SE4
SE6
G10
SE6
SE5
G9
E4
G8
2 days
ago
S2
S2
S2
SE3
SE1
S2
S2
W4
NW3
W3
NW3
W1
NW3
--
NW1
W2
S1
S1
S2
S2
SE2
SE4
SE1

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Boeing Field - King County International Airport, WA8 mi50 minS 810.00 miOvercast50°F45°F83%1004.2 hPa
Renton Municipal Airport, WA11 mi50 minN 010.00 miLight Rain48°F44°F86%1004.9 hPa
Seattle, Seattle-Tacoma International Airport, WA15 mi50 minS 11 G 167.00 miLight Rain50°F46°F86%1004.9 hPa
Everett Snohomish County, WA18 mi50 minSE 128.00 miLight Rain46°F43°F89%1003.7 hPa

Wind History from BFI (wind in knots)
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
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
Last 24hr------------------------------------------------
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Seattle, Washington
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Seattle
Click for Map
Thu -- 04:38 AM PST     10.98 feet High Tide
Thu -- 06:27 AM PST     Moonset
Thu -- 07:24 AM PST     Sunrise
Thu -- 09:57 AM PST     5.73 feet Low Tide
Thu -- 03:18 PM PST     11.37 feet High Tide
Thu -- 04:25 PM PST     Sunset
Thu -- 04:39 PM PST     Moonrise
Thu -- 09:41 PM PST     Full Moon
Thu -- 10:19 PM PST     -1.22 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
2.75.27.79.710.810.910.397.46.25.76.27.59.110.511.311.19.87.75.12.40.1-1.1-0.9

Tide / Current Tables for Alki Point, 0.3 miles W of, Washington Current
   EDIT      (on/off)   Help   One Week of Data
Alki Point
Click for Map
Thu -- 12:57 AM PST     0.75 knots Max Flood
Thu -- 04:39 AM PST     -0.00 knots Slack
Thu -- 06:28 AM PST     Moonset
Thu -- 07:12 AM PST     -0.43 knots Max Ebb
Thu -- 07:25 AM PST     Sunrise
Thu -- 10:32 AM PST     0.00 knots Slack
Thu -- 12:37 PM PST     0.35 knots Max Flood
Thu -- 03:12 PM PST     -0.00 knots Slack
Thu -- 04:25 PM PST     Sunset
Thu -- 04:39 PM PST     Moonrise
Thu -- 06:55 PM PST     -0.75 knots Max Ebb
Thu -- 09:41 PM PST     Full Moon
Thu -- 10:39 PM PST     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
0.70.70.70.50.2-0.1-0.3-0.4-0.4-0.3-0.10.10.30.30.20.1-0.2-0.5-0.7-0.7-0.7-0.5-0.20.2

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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 Seattle, WA (6,6,7,8)
      (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.