Friday, July19, 2019 L-36.com


Marine Weather and Tides
Harbor, OR

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6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:51AMSunset 8:47PM Friday July 19, 2019 3:05 AM PDT (10:05 UTC) Moonrise 9:47PMMoonset 7:31AM Illumination 95% Phase: Waning Gibbous; Moon at 17 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
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This is a Weather Statement Zone, please check the Date to see if it has expired
PZZ330 1126 Pm Pdt Fri Aug 9 2013
.thunderstorms over the waters... Thunderstorms over the waters have weakened but isolated storms will continue overnight. Mariners can expect gusty and erratic winds with the storms along with frequent lightning. If caught on the open water stay below deck if possible...keep away from ungrounded metal objects. Lat...lon 4397 12411 4396 12411 4400 12413 4284 12455 4242 12440 4225 12441 4205 12428 4184 12422 4181 12580 4198 12579 4220 12589 4370 12576 4386 12565 4399 12562 4403 12414
PZZ300 251 Am Pdt Fri Jul 19 2019
Synopsis for the southern oregon coastal waters.. The thermal trough along the coast is expected to peak in strength this afternoon and evening. Conditions hazardous to small craft will continue across all of the waters with more hazardous warning level conditions expected to peak this afternoon and evening for much of the area between 2 and 60 nm from shore south of cape blanco. Winds are expected to begin to diminish Saturday and then, moreso, on Sunday. The latest guidance suggests that a reprieve from advisory level conditions Monday and Tuesday will be short-lived as winds approach warning levels again mid-late week.


7 Day Forecast for Marine Location Near Harbor, OR
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location: 42.05, -124.27     debug


Area Discussion for - Medford, OR
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Fxus66 kmfr 190407
afdmfr
area forecast discussion
national weather service medford or
907 pm pdt Thu jul 18 2019

Discussion An update to the forecast is not necessary. Low
level clouds in coos and douglas counties have mostly dissipated
this evening, while mid level clouds linger across northern
california. Those clouds will dissipate overnight as well.

But, northerly flow should result in a modest re-development of
low clouds late tonight in douglas county to the south of
roseburg... Near canyonville. Temperatures, winds, and relative
humidity levels on Friday should be quite similar to those from
today. A more northeasterly component to the flow in curry county
is expected to create a chetco effect with well above normal
temperaturest for brookings on Friday and Saturday.

High pressure is expected to build during the weekend with a
warming and drying trend. Highs have been near normal for most of
the month so far, but will be 5 to 10 degrees above normal during
the weekend. For Sunday, the 18z model data supports the idea of
weak instability for at least a few cumulus buildups and perhaps a
few thunderstorms late Sunday afternoon into the evening in
southwest siskiyou county and in southern and eastern lake county.

Similarly, very weak instability may return in eastern lake
county late day on Monday and Tuesday. Any adjustments to the
convective forecast will continue to be the main focus going
forward.

Aviation For the 19 00z tafs...VFR ceilings in the umpqua valley
and along the umpqua divide are expected to clear this evening.

Conditions are then expected to remainVFR into Friday evening,
though with breezy gusty low level west to northwest winds during
this evening. -dw

Marine Updated 800 pm pdt Thursday 18 july 2019... A thermal
trough will strengthen along the coast through Friday. Conditions
are hazardous to small craft across all of the waters. The most
hazardous conditions, including gale force winds and very steep
seas, are occurring from 5 nm to 40 nm offshore from gold beach
south. Gusty north winds and choppy seas will persist into the
weekend. The thermal trough will weaken Sunday, with winds and seas
diminishing at that time.

Prev discussion issued 227 pm pdt Thu jul 18 2019
discussion...

satellite is showing lingering clouds north of the umpqua divide
and along the northern sections of the coast. Elsewhere, cumulus
clouds are scattered across northern california and southern
oregon this afternoon. With the zonal flow continuing aloft, near
normal temperatures are expected across most areas for tomorrow.

The exception will be brookings as thermal trough will bring
warmer than normal temperatures to that area.

The thermal trough will persist for the start of the weekend
before moving farther inland on Sunday. When the thermal trough
moves inland, we'll see high temperatures in the mid to upper 90's
in most locations in the west side valleys. This is the warmest
time of year and these temperatures will only be roughly 5 degrees
above normal.

With a trough approaching, the concern then turns to the
potential for thunderstorms. As this trough approaches, it will
ingest a tropical disturbance and bring that disturbance north
into the region. After looking over the thermodynamic profile
Sunday night into Monday, we were not that excited about the
potential for thunderstorms. There is a little bit of cape, but
the atmosphere appears too stable to support thunderstorms.

Convective inhibition is showing values from -25 to -50, which is
pretty healthy for weakly forced situations. Overall, we'll keep
an eye on thunderstorm potential Sunday through Monday.

Eventually, a cold front will approach the coast Monday night
into Tuesday. Models do show some spotty precipitation in the
forecast along the coast and this situation could very well
warrant a mention of rain near north bend, but we decided to keep
it out the forecast at this time. Temperatures will cool down
about 5 degrees Tuesday into Wednesday as this relatively cooler
air and a trough moves through.

Finally, this trough will move eastward and we'll have a brief
period or ridging as the four corners high builds towards the
pacific northwest. High temperatures will rise into the mid and
upper 90's towards the tail end of next week. -smith

Mfr watches warnings advisories
Or... None.

Ca... None.

Pacific coastal waters... Small craft advisory until 11 pm pdt Sunday for
pzz356-370-376.

Gale warning until 5 am pdt Saturday for pzz356-376.

Hazardous seas warning until 11 pm pdt Saturday for pzz356-376.

Small craft advisory until 5 am pdt Sunday for pzz350.

Dw res


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CECC1 - 9419750 - Crescent City, CA 21 mi59 min NNE 2.9 G 2.9 54°F 50°F1013.3 hPa
PORO3 - 9431647 - Port Orford, OR 49 mi53 min N 12 G 21 59°F 48°F1017.9 hPa

Wind History for Crescent City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brookings, Brookings Airport, OR2 mi69 minN 010.00 miFair54°F51°F90%1013.6 hPa
Crescent City, Jack McNamara Field Airport, CA18 mi69 minN 08.00 miFair50°F48°F96%1013.5 hPa

Wind History from BOK (wind in knots)
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Last 24hrSE3CalmCalmCalmCalmSW3W3W5NW9NW7NW11NW14
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2 days agoCalmCalmCalmSE3CalmS3434NW11
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Tide / Current Tables for Brookings, Chetco Cove, Oregon
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Brookings
Click for Map
Fri -- 01:15 AM PDT     6.78 feet High Tide
Fri -- 05:57 AM PDT     Sunrise
Fri -- 08:17 AM PDT     -0.49 feet Low Tide
Fri -- 08:31 AM PDT     Moonset
Fri -- 02:57 PM PDT     5.75 feet High Tide
Fri -- 08:14 PM PDT     2.89 feet Low Tide
Fri -- 08:48 PM PDT     Sunset
Fri -- 10:46 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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6.36.86.65.84.42.81.30.1-0.5-0.30.51.93.34.65.55.85.54.843.32.933.64.6

Tide / Current Tables for Crescent, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map and Satellite Images
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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.
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Wind Forecast for Medford, OR (6,6,7,8)
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Ground Weather Radar Station Medford, OR
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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.