Saturday, February22, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Markham, WA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 7:08AMSunset 5:49PM Friday February 21, 2020 11:28 PM PST (07:28 UTC) Moonrise 6:38AMMoonset 3:52PM Illumination 2% Phase: Waning Crescent; Moon at 28 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- 854 pm pst Fri feb 21 2020 combined seas 6 to 8 ft. Bar conditions moderate. Maximum ebb currents will occur around around 345 am early Saturday morning and 4 pm Saturday afternoon. The afternoon ebb will be strong.
PZZ100 854 Pm Pst Fri Feb 21 2020
Synopsis for the northern and central washington coastal and inland waters..A weak front will move through the area tonight and Saturday. A stronger front and vigorous low pressure system will arrive Sunday. Onshore flow will ease Monday and Tuesday. Another weak front will reach the area on Wednesday.


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 220336 AFDSEW

Area Forecast Discussion National Weather Service Seattle WA 735 PM PST Fri Feb 21 2020

SYNOPSIS. A weak frontal system will bring increasing clouds and a chance of showers tonight and Saturday. A stronger and wetter system will bring more rain, gusty winds and mountain snow on Sunday. Rain and snow will gradually taper Monday, allowing for a generally benign week of weather next week.

SHORT TERM /TONIGHT THROUGH MONDAY/. Starting to see the first slightest indications of the incoming system both on current satellite and on radar. Satellite shows clouds associated with the system just creeping over the far NW tip of the Olympic Peninsula while current radar shows any prospect of associated precip remains over the coastal waters . although to be fair . echoes are pretty light To emphasize de-emphasizing said echoes. obs over BC show that only the thicker cloud cover/cooler cloud tops seem to be supporting any actual observed precip and those remain well north of the CWA. This would support thoughts of previous shift regarding potential rainfall chances and amounts associated with this system.

With forecast holding together well . no evening updates anticipated. 18

From Previous Discussion . We're seeing one last fine day across western WA with temps in the 50s and skies mostly sunny. But our dry streak will come to an end as a weak Pacific frontal system moves inland tonight and Saturday. Most of the showers will be along the coast and in the mountains as this system passes through. Rainfall amounts in the interior will be generally light (under 0.10"). Temperatures will be a few degrees cooler on Saturday with highs in the upper 40s. We'll see a brief break in the weather Saturday night as this system exits.

A stronger and wetter frontal system is slated for Sunday. This system will bring more rain, gusty winds and possibly heavy mountain snow to the area. Snow levels will remain low, around 2500 ft, with accumulating snow expected at the higher passes (like Stevens and White Pass). Snoqualmie Pass may see a rain/snow mix at times. Winds will be gusty (out of the S/SW) as the cold front moves through the interior Sunday afternoon - gusts to 30 to 40 mph expected. Showers will mostly impact the Cascades Sunday night under post-frontal onshore flow. Will likely see a convergence zone develop which may bring more heavy snow to the central Cascades (including Stevens and Snoqualmie Passes).

Showers will linger into Monday as onshore flow continues but it looks like most of the activity will remain in the Cascades. We should see drier conditions toward the afternoon and evening as a ridge moves inland. 33

LONG TERM /TUESDAY THROUGH FRIDAY/. From Previous Discussion . High pressure will remain over the Pac NW on Tuesday for dry and mild weather across western WA. The ridge will weaken/flatten Tuesday night or Wednesday as a weak frontal system moves into southern B.C. and clips western WA. The ridge may rebuild over the region late in the week for another brief dry spell. 33

AVIATION. Westerly flow aloft tonight and Saturday. A weak front will move into the area tonight before breaking up over the area on Saturday. The air mass is generally stable with high clouds in place over most of W WA with mid to low level clouds moving in with the weak front. Low clouds expected to be widespread by Saturday morning before starting to scatter out for some locations Saturday afternoon and evening.

KSEA . High clouds at times this evening. Ceilings will gradually lower tonight with low clouds developing Saturday morning as a weak front moves into the area. Southerly wind 4-8 knots. Schneider/18

MARINE. A weak front will reach the area late tonight then fall apart on Saturday. There could be a few hours of small craft advisory strength southerly winds tonight and Saturday morning for the northernmost inner Coastal Waters zone as well as portions of the Strait of Juan de Fuca and Northern Inland Waters but it looks pretty marginal. Current obs show only Race Rocks getting close to SCA criteria while all other obs sites well below thresholds and as such current thinking remains valid and will opt to leave headlines as they are.

A stronger frontal system will cross the area Saturday night and Sunday. This system should bring gale force southerly winds to the Coastal Waters. Gales force southerly winds are also possible for the entrances to the Strait and Northern Inland Waters but this looks more marginal.

Strong onshore flow will follow the front later Sunday and Sunday night with gale force west winds for the Coastal Waters, the Strait, and Admiralty Inlet with small craft advisory strength winds all other waters. Seas over the Coastal Waters will briefly build to 20-24 feet Sunday afternoon or early Sunday evening. As there is still a bit of time before this occurs . will allow future shifts to make the call on any headlines.

Onshore flow will ease on Monday then become light southeasterly on Tuesday in advance of a weak front. The aforementioned weak front will move into the area around Tuesday night then fall apart on Wednesday as it moves inland. Schneider/18

HYDROLOGY. No river flooding is expected over the next 7 days.

SEW WATCHES/WARNINGS/ADVISORIES. WA . None. PZ . Small Craft Advisory from 10 PM this evening to 9 AM PST Saturday for Northern Inland Waters Including The San Juan Islands.



www.weather.gov/seattle


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 mi53 min WSW 6 G 7 44°F 47°F1021.8 hPa
46211 - Grays Harbor, WA (036) 13 mi29 min 47°F6 ft
TOKW1 - 9440910 - Toke Point, WA 13 mi59 min Calm G 1.9 43°F 47°F1022.3 hPa
46243 - Clatsop Spit, OR - 162 47 mi29 min 46°F6 ft
ASTO3 - 9439040 - Astoria, OR 49 mi59 min Calm G 1 42°F 43°F1022.4 hPa

Wind History for Westport, WA
(wind in knots)    EDIT      (on/off)   Help
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
Last
24hr
SE4
SE4
E6
E4
E5
E6
SE4
S3
SE1
SE6
SE5
E3
SW3
G7
SW7
SW5
W8
W5
W6
G9
W7
G10
NW9
W7
W5
W7
W6
1 day
ago
E12
E14
E16
E14
G19
E14
G17
E16
G20
E17
E11
G15
E15
G19
E15
E15
E14
G17
E11
G14
E9
G12
E4
N4
NW2
W5
W4
NE2
E2
N2
NE1
E4
2 days
ago
SE12
G17
E10
G15
E16
G20
E16
E12
G19
E15
G19
E16
G21
E20
E17
G21
E11
G20
E12
G17
E12
G18
E17
E11
G14
E11
G14
E13
E9
E11
G14
E12
G15

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hoquiam, Bowerman Airport, WA6 mi36 minSW 610.00 miA Few Clouds43°F39°F86%1022.3 hPa

Link to 5 minute data for KHQM

Wind History from HQM (wind in knots)
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
Last 24hrE6E7E5E4E5E5E6E6CalmE5E4E3SE3W5W9W9W8W7W8W7W4CalmW4SW6
1 day agoE11E8E8E9E9E11E9E10E6E10E11E9E9E10E8E7E5W5NW4CalmE3CalmE5Calm
2 days agoE8E8E10SE11E9E9E12E11E13E18
G25
E15E14E16E13
G18
E15E14E13E11E9E6E10E7E5E9

Tide / Current Tables for Markham, Grays Harbor, Washington
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Markham
Click for Map
Sat -- 12:37 AM PST     9.16 feet High Tide
Sat -- 05:54 AM PST     3.51 feet Low Tide
Sat -- 07:09 AM PST     Sunrise
Sat -- 07:10 AM PST     Moonrise
Sat -- 12:02 PM PST     10.06 feet High Tide
Sat -- 04:56 PM PST     Moonset
Sat -- 05:50 PM PST     Sunset
Sat -- 06:31 PM PST     0.48 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
99.18.57.35.64.13.54.15.46.88.49.610.19.68.46.74.52.20.70.61.63.25.27.2

Tide / Current Tables for Grays Harbor Entrance, Washington Current
   EDIT      (on/off)   Help   One Week of Data
Grays Harbor Entrance
Click for Map
Sat -- 12:54 AM PST     -0.00 knots Slack
Sat -- 03:48 AM PST     -2.17 knots Max Ebb
Sat -- 06:41 AM PST     0.00 knots Slack
Sat -- 07:09 AM PST     Sunrise
Sat -- 07:10 AM PST     Moonrise
Sat -- 10:05 AM PST     1.79 knots Max Flood
Sat -- 12:20 PM PST     -0.00 knots Slack
Sat -- 03:59 PM PST     -3.49 knots Max Ebb
Sat -- 04:57 PM PST     Moonset
Sat -- 05:51 PM PST     Sunset
Sat -- 07:26 PM PST     0.00 knots Slack
Sat -- 10:51 PM PST     2.41 knots Max Flood
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
1.1-0.1-1.1-1.9-2.2-1.6-0.70.31.11.61.81.50.5-1-2.2-3.1-3.5-3-1.9-0.60.71.62.22.4

Weather Map
       (on/off)   Help Weather Map
wmap_P
GEOS 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 (2,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Portland, OR
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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 numerous 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.