Friday, October20, 2017 L-36.com


Marine Weather and Tides
Glasgow, OR

Version 3.4
What's New / NOTES
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.
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 7:37AMSunset 6:25PM Friday October 20, 2017 9:22 AM PDT (16:22 UTC) Moonrise 7:22AMMoonset 6:22PM 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
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PZZ350 Coastal Waters From Florence To Cape Blanco Or Out 10 Nm- 850 Am Pdt Fri Oct 20 2017
.hazardous seas warning remains in effect until 11 pm pdt this evening...
.gale warning in effect from this evening through Saturday afternoon...
Today..SW wind 10 to 15 kt. Wind waves 5 to 6 ft. SWell W 18 to 19 ft at 16 seconds. Showers and isolated tstms.
Tonight..SW wind 10 to 15 kt...backing to S 15 to 20 kt in the late evening and early morning, then...rising to 20 to 25 kt early in the morning. Wind waves 4 to 5 ft. W swell 17 ft at 15 seconds...subsiding to 14 ft at 14 seconds after midnight. Showers likely in the evening, then rain after midnight.
Sat..S gales 35 kt early in the morning...rising to gales 40 kt, then...easing to gales 35 kt early in the afternoon. 30 kt late in the afternoon. Cape arago southward, S gales 40 kt. Wind waves 11 to 14 ft. SWell W 10 ft at 14 seconds...building to W 13 ft at 13 seconds in the afternoon. Rain.
Sat night..S wind 30 kt. Wind waves 7 to 10 ft. SWell W 12 to 13 ft. Rain likely.
Sun..S wind 30 kt...easing to 20 to 25 kt in the afternoon. Wind waves 7 to 10 ft. W swell 12 to 13 ft. Rain.
Sun night..S wind 15 kt...easing to 5 kt after midnight. Wind waves 6 to 7 ft...subsiding to 4 to 5 ft after midnight. W swell 11 to 12 ft. Chance of rain in the evening, then chance of showers after midnight.
Mon..NE wind 5 kt...backing to N 10 to 15 kt. Wind waves 3 ft in the morning...becoming 2 ft or less, then...becoming 3 ft. W swell 10 ft.
Tue..NE wind 15 kt...backing to N in the evening, then... Veering to ne after midnight. Wind waves 3 to 4 ft...becoming 2 ft or less. W swell 9 ft... Subsiding to 6 ft.
PZZ300 850 Am Pdt Fri Oct 20 2017
Synopsis for the southern oregon coastal waters..Heavy long period northwest swell will persist through this afternoon, creating very high and steep seas along with dangerous surf and bar conditions. The heavy swell will subside to moderate tonight, but another round of south gales will develop at that time as a warm front moves through the area. This front will also bring heavy rainfall late tonight into Saturday morning. A thermal trough will set up along the coast early next week, and this will bring strong north winds and steep seas south of cape blanco beginning Monday and continuing through Tuesday.

7 Day Forecast for Marine Location Near Glasgow, OR
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location: 43.43, -124.22     debug


Area Discussion for - Medford, OR
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Fxus66 kmfr 201556
afdmfr
area forecast discussion
national weather service medford or
856 am pdt Fri oct 20 2017

Update Radar returns this morning show numerous showers making
their way east to west across the region. The bulk of these remain
concentrated along and wets of the cascades, but a few showers are
possible across the east side as well. These showers should
gradually diminish through this afternoon, but the break will be
short lived, as the tail end of the passing front will lift back
north as a warm front tonight and tomorrow. This will produce
another round of widespread precipitation and breezy to gusty
winds. Snow levels of around 4500 feet today will lift quickly
above 9000 feet as the warm front passes. Until then, moderate to
heavy now is likely in the cascades, and a winter weather
advisory remains in place there.

Overall this morning, the forecast appears on track, so there are
no major changes with the update. Major efforts today will focus
on the warm frontal passage mentioned above. For more information
on this and the rest of the forecast, see the previous discussion
below. -bpn

Aviation 20 12z TAF cycle... From the cascades west... Areas of
MVFR ifr CIGS vsbys in showers and extensive obscuration of higher
terrain will persist this morning. Conditions will improve later
this morning to local MVFR CIGS in showers with areas of higher
terrain obscured. This will persist into this evening, but
precipitation will end briefly this afternoon into this evening.

South winds will increase tonight as a warm front moves in, with
MVFR with areas of ifr ceiling at the coast. East of the
cascades... Areas of MVFR CIGS vsbys with obscuration of higher
terrain will persist this morning. Conditions will improve to
isolated MVFR CIGS by this afternoon, but winds will pick up again
this afternoon. Precipitation will end briefly Friday afternoon into
Friday evening.

Marine Updated 850 am pdt Friday 20 october 2017... Heavy long
period northwest swell will persist through this afternoon, creating
very high and steep seas along with dangerous surf and bar
conditions. The heavy swell will subside to moderate tonight, but
another round of south gales will develop at that time as a warm
front moves through the area. This front will also bring heavy
rainfall late tonight into Saturday morning. A thermal trough will
set up along the coast early next week, and this will bring strong
north winds and steep seas south of CAPE blanco beginning Monday and
continuing through Tuesday. -msc

Prev discussion issued 513 am pdt Fri oct 20 2017
discussion...

scattered showers will continue across the region this morning
behind a robust cold front. Snow levels have dropped and we have
observed snow falling at lakeview, klamath falls and the diamond
lake odot camera this morning. We're still going with 6 to 10
inches to fall above 4500 feet across the cascade range this
morning through 18z. We also saw plenty of precipitation with one
site near brookings reporting 2+ inches of rain.

As for the rest of the day, the trough axis swings through our
forecast area with the cold temperatures aloft allowing widespread
showers to continue. The bulk of precipitation will occur during
the morning and early afternoon hours before the trough axis
swings through Friday afternoon evening. As a result, showers
should be on the down turn Friday evening.

That will be briefly lived as a warm front pushes in from the
west on Saturday morning. Snow levels will still be 4000 to 4500
feet ahead of the front. Therefore, broad synoptic lift ahead of
the front will allow for some pretty intense snow fall between
6z and 15z Saturday along the cascades. Right now the forecast
calls for an additional 6 to 10 inches along the cascades.

Once this warm front passes, the focus really is on the zonal flow
and the atmospheric river slamming onto the cascade range. Right
now portland's forecast area is really going to get hit if the
models are on point. 700mb and 850mb winds are 50 to 60 knots
allowing for some solid topographic lift, which can be seen on the
nam QPF output. More specifically for the QPF fields from 21z
Saturday to 18z Sunday. That moisture axis will then shift south
briefly Sunday evening bringing more rain to southern oregon. Wind
products may be needed for higher elevations on east side
Saturday afternoon because of the winds mentioned earlier.

-smith

Mfr watches warnings advisories
Or... High surf advisory until 11 pm pdt this evening for orz021-022.

Winter weather advisory until 11 am pdt Saturday for
orz025-027-028.

Ca... None.

Pacific coastal waters... Gale warning from 11 pm this evening to 5 pm pdt Saturday for
pzz350-356-370-376.

Hazardous seas warning until 11 pm pdt this evening for
pzz350-356-370-376.

Bpn msc czs sbn


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHAO3 - 9432780 - Charleston, OR 8 mi167 min Calm G 1.9 51°F1011 hPa
46260 11 mi173 min 55°F16 ft
46128 19 mi143 min 9.7 1010.8 hPa (+1.3)
46261 23 mi173 min 53°F19 ft
46229 - UMPQUA OFFSHORE, OR (139) 29 mi120 min 55°F20 ft

Wind History for Charleston, OR
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Southwest Oregon Regional Airport, OR2 mi27 minSSE 610.00 miOvercast49°F48°F97%1013.5 hPa

Wind History from OTH (wind in knots)
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2 days agoSE9SE9SE6E53W7W7NW7NW6N3CalmCalmSE4SE6SE6S4S5SE8SE7SE5SE8SE6SE6SE7

Tide / Current Tables for Coos Bay, Oregon
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Coos Bay
Click for Map
Fri -- 02:36 AM PDT     6.90 feet High Tide
Fri -- 07:37 AM PDT     Sunrise
Fri -- 08:21 AM PDT     Moonrise
Fri -- 08:22 AM PDT     1.31 feet Low Tide
Fri -- 02:29 PM PDT     7.75 feet High Tide
Fri -- 06:25 PM PDT     Sunset
Fri -- 07:23 PM PDT     Moonset
Fri -- 08:57 PM PDT     -0.16 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.45.96.76.86.14.93.42.11.41.52.43.85.46.87.67.66.85.23.31.50.3-0.20.31.6

Tide / Current Tables for Charleston, Oregon
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Charleston
Click for Map
Fri -- 01:16 AM PDT     7.25 feet High Tide
Fri -- 07:03 AM PDT     1.56 feet Low Tide
Fri -- 07:38 AM PDT     Sunrise
Fri -- 08:21 AM PDT     Moonrise
Fri -- 01:08 PM PDT     8.11 feet High Tide
Fri -- 06:25 PM PDT     Sunset
Fri -- 07:23 PM PDT     Moonset
Fri -- 07:39 PM PDT     -0.02 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
6.67.276.14.63.221.61.934.66.37.58.17.86.64.82.91.20.200.82.24

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for Medford, OR (12,3,4,5)
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Ground Weather Radar Station Medford, OR
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weather_mapweather_map weather_map

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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.