Friday, May24, 2019 L-36.com


Marine Weather and Tides
Onalaska, 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 5:25AMSunset 8:51PM Friday May 24, 2019 8:54 PM PDT (03:54 UTC) Moonrise 12:16AMMoonset 9:35AM Illumination 64% 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
    EDIT      (on/off)   Help
PZZ210 Columbia River Bar- 223 Pm Pdt Fri May 24 2019
In the main channel.. - general seas...6 to 7 ft through Saturday, easing to 5 ft Saturday afternoon. - first ebb...around 1015 pm tonight. Seas to 8 ft. - second ebb...around 10 am Saturday. Seas to 8 feet. - third ebb...around 1115 pm Saturday. Seas 7 to feet.
PZZ200 223 Pm Pdt Fri May 24 2019
Synopsis for the southern washington and northern oregon coast.. General high pressure will remain over the waters for the next few days. An upper level low will move south from vancouver island and cross the pac nw coastal waters Saturday.


7 Day Forecast for Marine Location Near Onalaska, WA
   Hourly   EDIT   Help
location: 46.51, -122.63     debug


Area Discussion for - Seattle, WA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksew 250319
afdsew
area forecast discussion
national weather service seattle wa
818 pm pdt Fri may 24 2019

Synopsis An upper level low will bring isolated showers to the
region tonight. Another low drops south for Saturday with more
widespread chances for showers. Drier and warmer weather expected
for the lowlands for next week with chances for showers and
isolated thunderstorms in the mountains through memorial day.

Short term tonight through Monday The first of couple
upper lows to affect the region is sinking southward over
north central oregon this evening. Apart from a few breaks
along the coast, cloud cover is pretty solid across western
washington. We can expect isolated showers overnight with lows
mostly near 50. The next upper low is approaching haida gwaii this
evening and will slide down the bc coast overnight to just west of
quillayute by mid morning Saturday. Showers will increase through
the day... Especially over the interior of western washington... As
the low slides southward. This should be a more prolific
precipitation producer for lowlands around puget sound with many
spots getting a quarter to half inch of rainfall Saturday afternoon
and evening. As one would expect, temperatures will remain cool with
highs in the upper 50s to lower 60s. 27
from previous discussion... The upper level low will exit south on
Sunday, but we may see some wrap-around showers clipping the
cascades. Otherwise, onshore flow is weaker for less cloud cover and
warmer temperatures.

We're looking warmer for memorial day as temperatures reach the
low to mid 70s in the interior. The coast will remain cooler and
in the 60s. There's a chance of showers and isolated thunderstorms
in the cascades, where instability is the greatest. 33

Long term Tuesday through Friday Weak high pressure will
provide dry weather as we move through next week. At the surface,
low level onshore flow will prevail. We'll likely see morning
clouds each day then some clearing and sunbreaks in the afternoon.

The pattern breaks down late in the period, next Friday and
Saturday, as the flow turns more zonal and a trough moves in. 33

Aviation Northerly flow aloft over western washington this
evening as the first of a couple upper level lows departs the
region. Flow aloft will back to southerly by mid morning Saturday as
next low sinks southward to just off the north washington coast by
18z. The air mass remains moist and stable with widespread low MVFR
and areas of ifr ceilings developing by daybreak. Showers will
remain isolated through about 15z then increase in coverage through
Saturday afternoon... Especially over the interior of western
washington.

Ksea...VFR CIGS this evening will deteriorate to low MVFR overnight
and persist into Saturday afternoon. Showers increasing by late
Saturday morning with 18z-00z period probably worst in terms of
both low ceiling and precipitation. Surface winds southwesterly
backing to southerly 7 to 11 knots overnight. Winds shifting to
northerly around 00z-02z Saturday evening. 27

Marine Onshore flow through Saturday with strong northwesterly
flow present over the coastal waters. Gale warnings continue for the
outer coastal waters with SCA level winds for the inner coastal
waters into Saturday. Surface flow will become lighter later
Saturday into Sunday. Onshore flow will increase on Monday and
continue through Tuesday. Jd

Hydrology The daily hydrology discussion has ended until the
start of the next rainy season; it will only be updated as needed
until then.

Sew watches warnings advisories
Wa... None.

Pz... Gale warning until 2 pm pdt Saturday for coastal waters from
cape flattery to james island 10 to 60 nm-coastal waters
from james island to point grenville 10 to 60 nm-coastal
waters from point grenville to CAPE shoalwater 10 to 60 nm.

Small craft advisory for hazardous seas from 2 pm to 10 pm pdt
Saturday for coastal waters from CAPE flattery to james
island 10 to 60 nm-coastal waters from james island to
point grenville 10 to 60 nm-coastal waters from point
grenville to CAPE shoalwater 10 to 60 nm.

Small craft advisory for rough bar until 6 pm pdt Saturday for
grays harbor bar.

Small craft advisory until 6 pm pdt Saturday for coastal waters
from CAPE flattery to james island out 10 nm-coastal waters
from james island to point grenville out 10 nm-coastal
waters from point grenville to CAPE shoalwater out 10 nm.

Small craft advisory until 2 pm pdt Saturday for west entrance
u.S. Waters strait of juan de fuca.



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
LOPW1 - 9440422 - Longview, WA 33 mi60 min 58°F1015.9 hPa
TCMW1 - 9446482 - Tacoma Met, WA 54 mi60 min SW 7 G 8.9
TCNW1 - 9446484 - Tacoma, WA 54 mi60 min 57°F 51°F1014.7 hPa

Wind History for Longview, WA
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Chehalis-Centralia Airport, WA22 mi59 minSW 410.00 miOvercast55°F48°F77%1015.2 hPa

Wind History from CLS (wind in knots)
10
PM
11
PM
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
Last 24hrSW65Calm6
G12
SW9
G16
SW7SW73
G12
SW7SW6S6SW64
G11
S7SW8
G14
SW9
G18
SW9
G17
SW7
G15
SW86
G13
Calm6
G15
SW6SW5
1 day agoSW4Calm3SW3CalmCalmCalmCalmW33CalmCalmCalmCalm5NE5N76
G11
NW7
G13
NW7NW8
G14
NW7
G16
SW6W6
G12
2 days agoCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3CalmCalmCalmNE5NE4
G10
5
G10
5NE64
G15
6NW865

Tide / Current Tables for Olympia, Washington
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Olympia
Click for Map
Fri -- 01:18 AM PDT     Moonrise
Fri -- 05:07 AM PDT     7.33 feet Low Tide
Fri -- 05:26 AM PDT     Sunrise
Fri -- 09:08 AM PDT     10.79 feet High Tide
Fri -- 10:35 AM PDT     Moonset
Fri -- 04:31 PM PDT     0.18 feet Low Tide
Fri -- 08:51 PM PDT     Sunset
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
14.513.311.49.37.97.37.78.810.110.810.59.57.95.83.61.60.40.41.746.89.812.414

Tide / Current Tables for Nisqually Reach, Washington Current
   EDIT      (on/off)   Help   One Week of Data
Nisqually Reach
Click for Map
Fri -- 01:17 AM PDT     Moonrise
Fri -- 02:37 AM PDT     -0.78 knots Max Ebb
Fri -- 05:25 AM PDT     Sunrise
Fri -- 05:36 AM PDT     0.00 knots Slack
Fri -- 07:34 AM PDT     0.45 knots Max Flood
Fri -- 09:24 AM PDT     -0.00 knots Slack
Fri -- 10:34 AM PDT     Moonset
Fri -- 01:31 PM PDT     -1.16 knots Max Ebb
Fri -- 05:08 PM PDT     0.01 knots Slack
Fri -- 08:17 PM PDT     1.16 knots Max Flood
Fri -- 08:50 PM PDT     Sunset
Fri -- 11:56 PM PDT     -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
-0.3-0.6-0.8-0.8-0.6-0.30.10.40.40.2-0.2-0.6-0.9-1.1-1.1-0.9-0.6-0.10.40.91.11.10.80.4

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 (23,6,7,8)
      (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.