Tuesday, September18, 2018 L-36.com


Marine Weather and Tides
Scotia, CA

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7/21/2018 Trying to make page Mobile Friendly

Sunrise 6:59AMSunset 7:20PM Tuesday September 18, 2018 1:57 PM PDT (20:57 UTC) Moonrise 2:58PMMoonset 12:00AM Illumination 64% Phase: Waxing Gibbous; Moon at 9 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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PZZ410 730 pm pdt Tue mar 13 2018 a marine weather statement has been issued for the following areas... Coastal waters from pt. St. George to cape mendocino ca out 10 nm... Humboldt bay bar... At 729 pm pdt, doppler radar indicated a shower, capable of producing winds to around 30 knots. This shower was located 9 nm north of cape mendocino, moving northeast at 20 knots. Precautionary/preparedness actions... Water spouts are possible along with stronger Thunderstorms...locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until these storms pass. Mariners can expect gusty winds to around 30 knots...locally higher waves...and lightning strikes. Boaters should seek safe harbor immediately until this storm passes. && lat...lon 4080 12411 4080 12418 4075 12419 4073 12423 4070 12421 4068 12422 4070 12427 4071 12427 4065 12431 4063 12429 4063 12424 4062 12426 4063 12432 4047 12439 4057 12459 4095 12437 4086 12417 4076 12423 4085 12416 4082 12409
PZZ400 905 Am Pdt Tue Sep 18 2018
Synopsis for northern california waters..Northerly winds will continue to strengthen over the coastal waters as a thermal trough intensifies over interior california. Winds and steep seas will peak today into Wednesday before gradually diminishing later in the week.


7 Day Forecast for Marine Location Near Scotia, CA
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location: 40.25, -124.37     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 181109
afdeka
area forecast discussion
national weather service eureka ca
409 am pdt Tue sep 18 2018

Synopsis High pressure will maintain dry weather with seasonable
temperatures through the week.

Discussion Stratus has been slowly developing through the
night across portions of humboldt county and portions of the
mendocino coast and adjacent river valleys. The low cloud cover
has been most extensive in the interior. The stratus deck inland
has been struggling to expand westward over coastal sites. The
cloud cover may be too pessimistic for today with beams of bright
sunshine possible during the morning hours for the north coast.

A dry upper trough offshore will transition across the area
today. This trough will maintain below normal temperatures for
the interior today. Another dry trough aloft will move across
pacific NW later tonight and should result in more coastal low
clouds. Upper ridging and stronger offshore flow will follow on
Wednesday and continue into Thursday. Interior temperatures are
expected to warm above normal on both days. The highest temperatures
are expected on Thursday. Some interior valley sites will probably
peak in the upper 80s to mid 90s. Coastal areas will also see
longer periods of sunshine and perhaps some warming, through breezy
north winds will keep the immediate coast chilly.

The ridge will start to buckle on Friday as a new trough
approaches the pacific northwest. Temperatures will probably
remain above normal on Friday. A dry front will move across
the area Friday night. No significant rain is expected for nw
california from this front, though we do not want to rule out
the possibility for coastal drizzle.

A dry weather pattern is expected to persist through the weekend
and early next week. Temperatures may cool down to near seasonal
averages (mid 70s to mid 80s) this weekend if the GFS model pans
out. The ECMWF maintains a solid ridge with above normal temperatures
on the other hand. For now, sided with a blend of the two which
still yields pleasant daytime temperatures.

Both models have backed off on precip early next week. Hope for
any appreciable september rain is quickly fading.

Aviation Stratus has yet to impact coastal terminals, but
overnight satellite imagery shows stratus building toward both
kacv and kcec. Expect the stratus to push over the coastal
terminals in the next hour or so and bring ifr to lifr conditions.

Hi-res guidance does not depict stratus lingering around for
long, and shows some clearing is possible this afternoon. Expect
this to occur and have some periods of clearing this afternoon and
evening for both coastal terminals. Elsewhere,VFR conditions
will continue through tomorrow.

Marine Northerly winds will continue to increase through midweek
in response to a building thermal trough. Peak winds and seas still
look to be Tuesday night into Wednesday morning, with seas forecast
to build to 10 to 11 across portions of the outer waters. Gusts to
near gale force are possible during this timeframe across portions
of the northern outer waters and downwind of CAPE mendocino. The
small craft advisories remain in effect for the northern outer,
southern outer, and southern inner waters through late Thursday
evening. Observations from buoys show small craft conditions
occurring in these areas. Additionally, have elected to go with
another small craft advisory for the northern inner waters starting
Tuesday morning and continuing through Thursday morning. Winds will
begin to decrease Wednesday evening and seas will slowly follow.

Otherwise, a southerly swell with a period around 15 to 16 seconds
will continue through midweek.

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters...

small craft advisory from 9 am this morning to 9 am pdt Thursday
for pzz450. Small craft advisory until 9 pm pdt Thursday for
pzz455-470-475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46213 - Cape Mendocino, CA (094) 19 mi28 min 60°F8 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 34 mi38 min N 16 G 21 56°F 56°F1018.2 hPa55°F
HBYC1 - 9418767 - North Spit, CA 37 mi82 min Calm G 1 56°F 54°F1018 hPa
46244 - Humboldt Bay, North Spit, CA 45 mi58 min 56°F6 ft

Wind History for North Spit, Humboldt Bay, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fortuna Rohnerville Airport, CA24 mi63 minW 1010.00 miPartly Cloudy63°F51°F68%1017.3 hPa

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


Tide / Current Tables for Punta Gorda, California Current
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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 CentralWestCoast    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 Eureka, CA (16,3,4,5)
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Ground Weather Radar Station Eureka, CA
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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.