Sunday, November19, 2017 L-36.com


Marine Weather and Tides
Yreka, CA

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 7:06AMSunset 4:46PM Sunday November 19, 2017 1:34 PM PST (21:34 UTC) Moonrise 7:59AMMoonset 6:03PM Illumination 1% Phase: Waxing Crescent; Moon at 1 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 819 Am Pst Sun Nov 19 2017
Synopsis for the southern oregon coastal waters..South winds will increase ahead of the next front this morning. Gales and very steep seas are likely by this evening though winds will not be as strong near shore south of gold beach. South winds are expected to decrease slightly on Monday but will increase again Monday night and remain strong through Wednesday.

7 Day Forecast for Marine Location Near Yreka, CA
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location: 41.75, -122.64     debug


Area Discussion for - Medford, OR
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Fxus66 kmfr 192005
afdmfr
area forecast discussion
national weather service medford or
1205 pm pst Sun nov 19 2017

Updated aviation discussion
Discussion No updates needed this morning. Current conditions
are pretty similar to that of yesterday morning. High level
clouds are streaming across the area, but those in the valleys are
socked in with low clouds and fog. Freezing fog persists in the
rogue valley and is fairly dense in some places. A freezing fog
advisory is in place until 10 am for this. The frost advisory for
the umpqua and coquille basins will be expiring at 9 am. This
should be the last relatively cold morning for the area. A strong
front will move into the area this afternoon bringing strong,
gusty winds and moderate to heavy rain overnight. Wind advisories
are in place for the more traditionally windy areas and details
can be found at npwmfr.

The focus for this afternoon's package will be fine tuning any
details on the system expected this evening and tonight. Also,
we'll be looking into the timing of multiple fronts expected to
follow this week. Snow levels will rise with tonight's system and
remain above 8,000 feet through at least thanksgiving afternoon,
so there aren't any snow impacts expected for pre-thanksgiving
travel. See the previous discussion below for more details on
expected weather. Br-y

Aviation 19 18z TAF cycle... Lifr low clouds and fog in valleys
west of the cascades are lifting to ifr and most valleys should
improve toVFR conditions this afternoon. Elsewhere,VFR CIGS will
continue through the day. A front will bring rain to the coast this
evening with gradually lowering ceilings and increasing mountain
obscuration. Exposed areas at the coast will become windy as the
front moves inland, and wind shear is a possibility at north bend
with strong southwest winds aloft and lighter south to southeast
winds at the surface.

Mountain obscuration and MVFR ifr ceilings will spread further
inland early Monday morning, affecting most areas by mid-morning on
Monday. Sk fb

Marine Updated 800 am pst Sunday 19 november 2017... South winds
will increase again ahead of the next front this afternoon with
gales and very steep seas expected by this evening, though winds
will not be as strong near shore south of gold beach. Confidence
remains high that seas will build rapidly to around 14 feet tonight
from gold beach north, with seas possibly building to 17 feet north
of coos bay. Winds could decrease some Monday but are expected to
increase to near gale again on Tuesday and remain strong
through mid-week. Unsettled weather will then continue into next
weekend. Fb sk

Prev discussion issued 308 am pst Sun nov 19 2017
discussion... Widespread fog and freezing fog has developed in
west side valleys, with some reports of visibility less than a
quarter mile. Yesterday, the medford airport didn't break out
until late morning... And don't see much indication that today
will be very different. Model soundings show around 40 degrees at
850 mb late morning... Similar to yesterday. Afternoon highs
should be relatively low, and made some adjustments to those this
shift.

Tonight, an upper trough front will start approaching, and on the
front side of the trough, a stream of moisture with tropical
origins will bring heavy precipitation as early as this evening.

This system will be a wet one, but not absurd for this time of
year. From tonight through Monday night, expect around 2 inches
of rain near brookings... 3 to 4 inches in the coastal range... 1
to 1.5 inches in the illinois valley... Up to an inch in
roseburg... And around a half inch in the rogue valley. Given the
warm moisture source, snow levels will be quite high. Crater lake
will probably see a few inches of snow late tonight, but by early
Monday morning, snow levels will easily be above 8000 feet.

Low temperatures east of the cascades will be near freezing
tonight, cloud cover ahead of the system should prevent
temperatures dropping to below freezing. Thus, freezing rain is
not considered a threat on the east side, at this time, though we
will continue to monitor the potential.

Expect breezy to gusty winds in the shasta valley today, and
moderate to strong winds over higher terrain on the east side
Monday as the front passes over. Tuesday will be somewhat of a
break... Though precipitation will probably linger, precip rates
will diminish sharply from Monday.

The forecast gets more complex from Tuesday forward. Models show
agreement that the area will remain under southwest flow at least
through Friday. Multiple cold fronts should pass through the area the
second half of the week, bring rounds of enhanced precipitation,
then lighter precipitation. Timing is one challenge, but QPF is a
bigger one. The GFS has presented much wetter than the ec, and
ultimately went with a blend, though leaning slightly towards gfs
due to better terrain resolution. For what it's worth, while clear
dry conditions looks like a tall order on thanksgiving, snow
levels will continue to be above pass level, so not expecting any
travel impacts at this time... Besides the challenges that rain
can bring. -msc

Mfr watches warnings advisories
Or... Frost advisory until 9 am pst this morning for orz021-023.

Wind advisory from 10 pm this evening to 4 pm pst Monday for
orz030-031.

Freezing fog advisory until 10 am pst this morning for orz026.

Ca... Wind advisory from 10 pm this evening to 4 pm pst Monday for
caz085.

Wind advisory until 10 pm pst Monday for caz081.

Pacific coastal waters... Small craft advisory until 4 pm pst this
afternoon for pzz350-356-370-376. Gale warning from 4 pm
this afternoon to 3 pm pst Wednesday for pzz350-356-370-376.

Hazardous seas warning from 4 pm this afternoon to 3 pm pst
Wednesday for pzz350-356-376.

Mnf msc fjb


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CECC1 - 9419750 - Crescent City, CA 82 mi53 min SSE 13 G 16 51°F 51°F1017.4 hPa
46027 - ST GEORGES - 8NM West Northwest of Crescent City, CA 93 mi45 min SE 16 G 18 52°F 53°F4 ft1017 hPa (-2.7)

Wind History for Crescent City, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Montague Siskiyou County Airport, CA9 mi42 minN 010.00 miFair35°F30°F82%1021.8 hPa

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Last 24hr3CalmS4S3SE4SE4CalmCalmCalmCalmCalmCalmCalmCalmSW3CalmNW4CalmCalmCalmCalmCalmCalmCalm
1 day agoCalm5NE7N6NE3CalmE5CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm
2 days agoW4NE8CalmN4CalmN8CalmN7CalmCalmW7E4CalmSW6W9CalmNW6CalmCalmCalmCalm----3

Tide / Current Tables for Crescent City, California
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Crescent City
Click for Map
Sun -- 12:14 AM PST     5.95 feet High Tide
Sun -- 05:28 AM PST     2.76 feet Low Tide
Sun -- 07:11 AM PST     Sunrise
Sun -- 08:05 AM PST     Moonrise
Sun -- 11:21 AM PST     7.23 feet High Tide
Sun -- 04:52 PM PST     Sunset
Sun -- 06:10 PM PST     Moonset
Sun -- 06:17 PM PST     -0.40 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.95.85.14.23.32.82.83.44.45.66.67.27.16.34.93.21.50.2-0.4-0.20.723.54.8

Tide / Current Tables for Brookings, Chetco Cove, Oregon
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Brookings
Click for Map
Sun -- 12:15 AM PST     5.95 feet High Tide
Sun -- 05:32 AM PST     2.76 feet Low Tide
Sun -- 07:12 AM PST     Sunrise
Sun -- 08:06 AM PST     Moonrise
Sun -- 11:22 AM PST     7.23 feet High Tide
Sun -- 04:52 PM PST     Sunset
Sun -- 06:09 PM PST     Moonset
Sun -- 06:21 PM PST     -0.40 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.95.85.14.23.42.82.83.44.45.66.67.27.16.34.93.21.60.3-0.4-0.20.61.93.44.8

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

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Medford, OR (16,3,4,5)
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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.