Thursday, May25, 2017 L-36.com


Marine Weather and Tides
Markham, WA

Version 3.4
What's New / NOTES
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 5:26AMSunset 8:58PM Thursday May 25, 2017 9:07 AM PDT (16:07 UTC) Moonrise 4:53AMMoonset 7:53PM Illumination 0% Phase: New Moon; Moon at 0 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
PZZ110 Grays Harbor Bar- 250 Am Pdt Thu May 25 2017
.small craft advisory for rough bar in effect until 7 am pdt this morning... Combined seas 7 to 9 ft...except 10 ft during the very strong ebb this morning. Seas subsiding to 5 to 7 ft this afternoon. Bar conditions rough...becoming moderate by midmorning. The maximum ebb currents will occur around 445 am and 515 pm today.
PZZ100 250 Am Pdt Thu May 25 2017
Synopsis for the northern and central washington coastal and inland waters..High pres over the ne pacific along with lower pres E of the cascades will keep the flow light onshore through Fri. The offshore high will weaken and redevelop farther W Saturday...causing the flow to become more northerly.

7 Day Forecast for Marine Location Near Markham, WA
   Hourly   EDIT   Help
location: 46.89, -124     debug


Area Discussion for - Seattle, WA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksew 251011
afdsew
area forecast discussion
national weather service seattle wa
310 am pdt Thu may 25 2017

Synopsis Temperatures will slowly rebound on today, with
enough moisture and instability for a few afternoon showers and
thunderstorms over the cascades. A warm and dry upper ridge axis off
the coast on Friday will pass directly over western washington on
Saturday. Its warm and dry influence will continue from Sunday
through Tuesday, including memorial day.

Short term Mostly clear skies over western washington have
allowed for temperatures to once again fall into the 40s area-
wide... Just as they did 24 hours ago. With upper level ridging over
the pacific pushing inland throughout the short term... Will expect
to see temperatures gradually climb through the period. Afternoon
highs today should be approx 5-10 degrees warmer than
yesterday... Depending on location... Bringing the temperature spread
over W wa from the lower 60s along the coast to near 70 in the
interior lowlands. A section of instability on the back edge of the
exiting trough looks to set up over the cascades this afternoon and
evening... Allowing for the chance for showers and thunderstorms to
develop over that area. LI values end up being fairly limited... Only
-1 or -2... With CAPE equally unimpressive... So have limited thunder
to chance or slight chance and this falls in line with surrounding
offices.

As this upper level ridge continues to push inland... A dry and warm
forecast resumes allowing for temperatures to reach into the upper
70s to low 80s in the interior lowlands for memorial day weekend. Smr

Long term Beyond the holiday... The first half of next week seems
to want to transition a bit. Starting with late Monday
night... Models remain consistent on some degree of instability and
scattered precip signatures possibly signaling a bit of a marine
push... Though not nearly as intense as the previous one. Still looks
to be enough to start cooling temps with afternoon highs Tue falling
back into the upper 70s for the interior. This downward trend will
continue as an upper level trough starts to approach the area by
midweek... Where we finally start to see the prospect of showers re-
enter the forecast. Smr

Aviation
Wrn wa will remain between a ridge of high pres offshore and an
upper level trof over the interior w. This will maintain the nly
flow aloft over the area. The low level flow will remain weak
onshore. The air mass will become unstable over the cascades this
afternoon for a risk of isold tstms. The threat will end after
sunset.

Meanwhile, expect areas of MVFR CIGS and patchy MVFR vsbys (due to
fog) til 1800 utc over the coast and SW interior (roughly S of a
line from kshn to ktcm).

Ksea...VFR. Light and variable winds will become NW near 10 knots
this afternoon.

Marine
High pressure centered over the northeast pacific along with lower
pressure east of the cascades will result in light onshore flow
through Friday. The offshore high will weaken and redevelop farther
west on Saturday, causing the flow to become light northerly.

Sew watches warnings advisories
Wa... None.

Pz... Small craft advisories for hazardous seas are in effect for
the coastal waters and west entrance to the strait of juan
de fuca.

Small craft advisory for rough bar in effect until 7 am this
morning for the grays harbor bar.



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
WPTW1 - 9441102 - Westport, WA 6 mi92 min W 4.1 G 5.1 51°F 54°F1013.4 hPa
46211 - Grays Harbor, WA (036) 13 mi46 min 51°F10 ft
TOKW1 - 9440910 - Toke Point, WA 13 mi56 min NNW 2.9 G 4.1 52°F 56°F1013.8 hPa
46099 31 mi138 min WNW 3.9 52°F 52°F1013 hPa
46243 - Clatsop Spit, OR - 162 47 mi38 min 55°F8 ft
46041 - CAPE ELIZABETH- 45NM Northwest of Aberdeen, WA 49 mi78 min WSW 1.9 G 3.9 52°F 52°F10 ft1013.3 hPa (+0.0)
ASTO3 - 9439040 - Astoria, OR 49 mi56 min N 1.9 G 2.9 50°F 58°F1013.1 hPa

Wind History for Westport, WA
(wind in knots)    EDIT      (on/off)   Help
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
4
AM
5
AM
6
AM
7
AM
Last
24hr
NW10
G14
NW15
G20
NW16
NW12
G15
NW17
G21
NW16
G21
NW11
G14
NW15
NW16
NW15
NW16
NW15
NW13
NW10
N6
NW4
NW2
NW3
NW4
NW2
W1
SW2
W3
SW1
1 day
ago
NW19
G23
NW22
G27
NW21
NW18
G22
NW19
G24
NW15
G19
NW18
G24
NW21
NW23
NW24
NW24
G29
NW25
G31
NW25
NW22
G27
NW22
NW23
G29
NW22
NW23
G28
NW25
NW20
NW17
NW20
NW15
NW17
G21
2 days
ago
N5
NW11
G14
N8
E7
E9
NW13
NW16
N14
G18
N15
NW19
NW23
N23
G28
N19
G23
N16
N6
N9
N17
G22
N20
G25
N10
N17
G21
N22
NW22
N22
G27
N20

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA6 mi75 minN 04.00 miFog/Mist51°F50°F96%1013.9 hPa

Wind History from HQM (wind in knots)
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
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
Last 24hrW9W16W14W17W11W11W17W16W13
G19
W12W11W7W4W4CalmCalmCalmCalmCalmNE4NE4NE3CalmNW3
1 day agoW12W15
G20
W12
G21
W15
G20
W18
G25
W19
G29
W15
G26
W15
G24
W18
G29
W18
G28
W12
G23
W14
G20
W11
G19
W12
G17
W9W10
G16
W9W10
G18
W11W9NW10W7W10
G15
W11
2 days agoCalmSE3E7SE6W11W12W8W10W9NW9W5SW8SW7S5W3W3W3W4W7W3CalmSW4SW5SW7

Tide / Current Tables for Markham, Grays Harbor, Washington
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Markham
Click for Map
Thu -- 12:44 AM PDT     10.21 feet High Tide
Thu -- 05:30 AM PDT     Sunrise
Thu -- 05:53 AM PDT     Moonrise
Thu -- 07:18 AM PDT     -2.41 feet Low Tide
Thu -- 12:46 PM PDT     New Moon
Thu -- 01:51 PM PDT     8.51 feet High Tide
Thu -- 07:22 PM PDT     1.04 feet Low Tide
Thu -- 08:52 PM PDT     Moonset
Thu -- 08:56 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
9.910.29.27.24.61.8-0.8-2.3-2-0.12.24.66.78.18.57.86.24.32.41.21.43.15.57.6

Tide / Current Tables for Grays Harbor Entrance, Washington Current
   EDIT      (on/off)   Help   One Week of Data
Grays Harbor Entrance
Click for Map
Thu -- 01:05 AM PDT     -0.00 knots Slack
Thu -- 04:42 AM PDT     -4.48 knots Max Ebb
Thu -- 05:30 AM PDT     Sunrise
Thu -- 05:53 AM PDT     Moonrise
Thu -- 08:02 AM PDT     0.01 knots Slack
Thu -- 11:11 AM PDT     2.95 knots Max Flood
Thu -- 12:46 PM PDT     New Moon
Thu -- 02:14 PM PDT     -0.01 knots Slack
Thu -- 05:11 PM PDT     -2.84 knots Max Ebb
Thu -- 07:51 PM PDT     0.00 knots Slack
Thu -- 08:52 PM PDT     Moonset
Thu -- 08:57 PM PDT     Sunset
Thu -- 10:46 PM PDT     2.70 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.60.2-1.8-3.4-4.3-4.4-3.6-2-0.11.52.62.92.820.4-1.3-2.4-2.8-2.6-1.40.21.62.52.7

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 (12,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Portland, OR
   (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.