Marine Weather and Tides
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
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.
|Sunrise 7:13AM||Sunset 7:27PM||Tuesday March 20, 2018 6:45 AM PDT (13:45 UTC)||Moonrise 8:22AM||Moonset 10:08PM||Illumination 14%|
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|PZZ356 Coastal Waters From Cape Blanco Or To Pt. St. George Ca Out 10 Nm- 235 Am Pdt Tue Mar 20 2018 |
Today..E wind 5 to 10 kt...backing to ne late afternoon. Wind waves 2 ft or less. Mixed swell W 3 ft at 11 seconds and sw 1 to 2 ft at 14 seconds.
Tonight..N wind 10 kt...veering to ne early in the morning. Wind waves 2 ft or less. Mixed swell sw 4 ft at 11 seconds and W 3 ft at 13 seconds. Chance of rain.
Wed..E wind 10 kt...veering to se early in the afternoon, then...veering to S 15 to 20 kt late in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell sw 4 to 5 ft at 9 seconds and nw 3 ft at 12 seconds. Showers.
Wed night..S wind 10 to 15 kt...veering to W 15 to 20 kt after midnight. Wind waves 4 to 5 ft. Mixed swell sw 4 to 5 ft and nw 3 ft. Showers in the evening, then rain after midnight.
Thu..W wind 10 to 15 kt. Wind waves 4 to 5 ft. Mixed swell S 3 ft and nw 3 ft...building to W 7 ft and sw 4 ft in the afternoon. Rain likely in the morning, then chance of showers in the afternoon.
Thu night..S wind 20 to 25 kt northern portion and S 10 to 20 kt brookings southward. Wind waves 4 to 5 ft...building to 6 to 7 ft after midnight. W swell 9 ft...building to 11 ft and sw 2 ft after midnight. Showers and slight chance of tstms.
Fri..SW wind 15 to 20 kt...easing to 10 kt after midnight. Wind waves 6 to 7 ft...subsiding to 5 ft after midnight. W swell 12 ft...subsiding to 10 ft.
Sat..SW wind 15 kt...backing to S after midnight. Wind waves 3 to 4 ft...becoming 2 ft or less. W swell 13 ft.
|PZZ300 235 Am Pdt Tue Mar 20 2018 |
Synopsis for the southern oregon coastal waters..A weak warm front will move north through the waters Tuesday night, followed by a cold front Wednesday night. South winds will increase ahead of the cold front, but winds and seas will remain below small craft advisory criteria. A stronger front will move onshore Thursday night and this will bring in stronger south winds and choppy seas. This more active weather pattern will persist through next weekend.
7 Day Forecast for Marine Location Near Gold Beach, ORHourly EDIT Help
Area Discussion for - Medford, OR  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 kmfr 201030|
area forecast discussion
national weather service medford or
330 am pdt Tue mar 20 2018
Short term A nearly stationary deformation zone is stretched
across the area extending between a weak departing trough in the
northerly stream and a broad upper low well offshore to the
southwest. This area has been the focus of weak radar echos
through the night with snow showers evident on the web cams across
the cascades around crater lake and highway 97 north of klamath
falls. Little change expected today but additional forcing will
occur as some shortwave energy arrives from the south. Have
slightly more confidence in the GFS today as it continues to show
some light shower activity continuing while the nam12 and higher-
resolution short term solutions indicate mainly dry weather -
apparently in response to building upper heights. Ample cloud
cover though and showers would be of minor impact nonetheless
with snow levels near 4500 ft rising above 5000 feet in the
Tonight through Wednesday the upper low well to the southwest
will fill and shift in our direction with increasing moisture. It
will be a wetter day across the board with increasing south winds
over the region. Snow levels will bounce up between 6500 and 7500
Later Wednesday through Wednesday night gets more interesting.
The arriving low phases with a northern stream digging trough
that will bring a strong cold front to the coast by around
midnight, and then through the CWA through early afternoon
Thursday. This should be a fairly vigorous frontal passage with
ample moisture for robust rain and snow rates, gusty south winds
in advance, and unstable conditions with thunderstorms possible at
least across the coast and umpqua. Given the strong baroclinicity
indicated with 700-500 millibar lapse rates nearing 7 deg c km,
some isolated thunder is not out of the question elsewhere inland
with this front. We will be considering a wind advisory for
sometime Wednesday night through early Thursday across the east
side and shasta valley.
Thursday night through the weekend we've not shifted the existing
forecast and the previous forecast discussion still is quite
valid after viewing successive model runs. Will repeat that well-
written piece below. -mts
long term... Thursday night through Monday... Indeed, by this time
frame, we will have shifted into astronomical spring. However,
winter will keep a firm grip on the weather as multiple disturbances
swing through the area beneath a deep, anomalous upper trough.
The first front will shift east of the area Thursday evening. The
cold pool aloft offshore will arrive overnight at the coast, and
then Friday morning west of the cascades. One disturbance will move
through the area Friday, then another Friday night, followed by one
more on Saturday. The core of the cold air mass associated with this
trough (-35 to -38c) is colder than the one that moved through the
area late last week. So once again, we'll be looking at very low
snow levels with the potential for snow on the valley floors Friday
through Saturday (especially if the timing of precipitation is
This time of the year, it's pretty hard for snow to accumulate much
at the lower elevations given the warming of the ground and the
higher march Sun angle. This is especially true during the daylight
hours, but if precipitation arrives at night or very early in the|
morning, there could be snow accumulation down as low as 500-1500
feet in some areas. This is possible both early Friday and Saturday
mornings. While each valley west of the cascades seems to have its
own microclimate, perhaps the most vulnerable to this type of
situation is the illinois valley, where locally heavier
precipitation can really drag down the snow level at times. Right
now, it's too early to say for certain how much snow will fall, but
this event will continue the late winter trend of building the
mountain snow pack. This is good news with respect to water storage,
since most areas are still running significant precipitation
deficits for the water year. But, it's not so great news for
travelers, as there'll likely be snow impacts, perhaps at low
elevations, but especially over the higher passes.
The expected cold weather also presents an issue for local
agriculture, especially this weekend west of the cascades as the
upper trough lifts out. Cloud cover showers will be the limiting
factor for freezing temperatures, but if there's enough clearing
Saturday night or Sunday night, temperatures could drop into the 20s
in the typically colder spots.
Model guidance shows another disturbance arriving in the NW flow by
early next week, with perhaps another bout of precipitation for the
forecast area Monday Tuesday. -spilde
Aviation 20 12z TAF cycle...VFR conditions will persist into
Tuesday afternoon with areas of higher terrain becoming obscured.
A warm front moving up from the south will bring widespread
precipitation to the area beginning Tuesday afternoon over
northern california and spreading north into oregon Tuesday
evening. From Tuesday afternoon through Tuesday night from the
siskiyous south, expect areas of MVFR CIGS with widespread
obscuration of higher terrain. From Tuesday evening through
Tuesday night north of the siskiyous and over the east side,
isolated MVFR CIGS will develop with widespread obscuration of
higher terrain. Jrs
Marine Updated 200 am pdt Tuesday 20 mar 2018... .A weak warm
front will move north through the waters Tuesday night, followed
by a cold front Wednesday night. South winds will increase ahead
of the cold front, but winds and seas will remain below small
craft advisory criteria.
A stronger front will move onshore Thursday night and this will
bring in stronger south winds and choppy seas. Small craft
conditions are possible during this time, especially over the
northern waters with steep wind driven seas. Cold air aloft will
move over the waters Thursday night into Friday. Showers will be
widespread, and there may be some isolated thunderstorms as well.
Heavy west swell in the 11 to 13 foot range will develop Thursday
night into Friday. Seas will subside a bit Friday into Friday night,
but even heavier swell around 15 feet will move in Saturday. Seas
will subside Sunday. During this interval the weather pattern will
remain active, so there will be period of choppy wind waves on top
of the swell. Jrs
Mfr watches warnings advisories
Pacific coastal waters... None.
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|PORO3 - 9431647 - Port Orford, OR||22 mi||52 min||N 2.9 G 4.1||45°F||50°F||1015.8 hPa|
|46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA||40 mi||56 min||E 3.9 G 3.9||51°F||52°F||4 ft||1015.5 hPa (-0.8)|
|CECC1 - 9419750 - Crescent City, CA||49 mi||46 min||NE 6 G 8.9||49°F||51°F||1014.9 hPa (-1.4)|
Wind History for Port Orford, OR(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Brookings, Brookings Airport, OR||25 mi||50 min||E 3||10.00 mi||Fair||44°F||37°F||79%||1017.9 hPa|
Wind History from BOK (wind in knots)
|1 day ago||Calm||Calm||SE||SW||NW||W||W||Calm||Calm||Calm||Calm||Calm||NE||Calm||Calm||Calm||Calm||Calm||Calm||Calm|
|2 days ago||Calm||Calm||Calm||S||Calm||W||NW||W||Calm||Calm||E||Calm||NE||Calm||Calm||Calm||Calm||Calm||Calm|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
Click for Map
Tue -- 02:11 AM PDT 6.59 feet High Tide
Tue -- 07:20 AM PDT Sunrise
Tue -- 08:42 AM PDT 0.41 feet Low Tide
Tue -- 09:22 AM PDT Moonrise
Tue -- 02:44 PM PDT 5.78 feet High Tide
Tue -- 07:30 PM PDT Sunset
Tue -- 08:41 PM PDT 1.25 feet Low Tide
Tue -- 11:08 PM PDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|Port Orford |
Click for Map
Tue -- 02:15 AM PDT 7.35 feet High Tide
Tue -- 07:21 AM PDT Sunrise
Tue -- 08:38 AM PDT 0.49 feet Low Tide
Tue -- 09:22 AM PDT Moonrise
Tue -- 02:47 PM PDT 6.44 feet High Tide
Tue -- 07:30 PM PDT Sunset
Tue -- 08:37 PM PDT 1.43 feet Low Tide
Tue -- 11:09 PM PDT Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  HelpWeather Map
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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Medford, OR (9,2,3,4)(on/off)  Help
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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.