Sunday, August25, 2019 L-36.com


Marine Weather and Tides
Manila, CA

Version 3.4
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7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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 6:35AMSunset 8:02PM Sunday August 25, 2019 3:02 PM PDT (22:02 UTC) Moonrise 12:15AMMoonset 3:28PM Illumination 22% Phase: Waning Crescent; Moon at 25 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 227 pm pst Fri feb 15 2019 a marine weather statement has been issued for the following areas... Waters from pt. St. George to cape mendocino ca out 60 nm... Humboldt bay bar... At 222 pm pst, doppler radar indicated lines of showers and isolated Thunderstorms over the waters north of cape mendocino, capable of producing winds to around 30 knots and small hail. This activity was moving east-northeast at 30 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. && lat...lon 4174 12417 4154 12405 4153 12405 4154 12408 4124 12410 4114 12416 4089 12413 4084 12418 4086 12410 4082 12410 4065 12431 4060 12418 4062 12424 4063 12432 4045 12440 4047 12579 4129 12555 4168 12568 4178 12579
PZZ400 255 Pm Pdt Sun Aug 25 2019
Synopsis for northern california waters..N winds and steep, short period northerly waves have begun to increase this afternoon. Northerly winds and waves will continue to increase tonight over the outer waters and remain elevated through Monday night. Closer to shore, winds will generally be lighter with periods of southerly winds. Winds will become southerly across the entire area starting Tuesday afternoon.


7 Day Forecast for Marine Location Near Manila, CA
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location: 40.83, -124.16     debug


Area Discussion for - Eureka, CA
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Fxus66 keka 251102
afdeka
area forecast discussion
national weather service eureka ca
402 am pdt Sun aug 25 2019

Synopsis Hot inland conditions can be expected through
Wednesday, particularly on Monday and Tuesday, with warmer than
normal temperatures on the coast as well. Coastal clouds will be
more prevalent today than yesterday, but most will clear Monday
and Tuesday before returning Tuesday night. Isolated but mostly
dry thunderstorms will be possible Wednesday or Thursday.

Discussion As expected, widespread marine stratus has
inundated many low lying areas along the north coast early this
morning, even resulting in some patchy light drizzle. While there
is certainly much more morning cloud cover around this morning
than yesterday morning, the majority of it is still expected to
clear by midday in most areas, although it may take slightly
longer in the humboldt bay region. Otherwise, most areas will see
a near repeat of yesterday's conditions, with coastal temperatures
climbing generally into the upper 60s to near 70 and interior
valleys reaching the mid 90s to near 100 degrees with sunny skies.

Overnight tonight, stratus is very likely to redevelop along the
mendocino coast and also around humboldt bay, but offshore winds
overnight may prevent stratus from developing much farther north
than approximately trinidad.

On Monday, building high pressure aloft will drive a slight
warmup across many areas, and this will continue through at least
Tuesday. As a result, interior valleys can expected to see high
temperatures reaching between 100 and 107 degrees on both days,
which will be enough to create a moderate risk for heat related
impacts to folks that are sensitive to heat or spending extended
time outdoors. Fortunately, the combination of low humidity and
moderately cool overnight lows in the upper 50s to mid 60s will
help to mitigate heat impacts somewhat. While Wednesday will
remain hot, temperatures will begin a very gradual cooling trend
that will continue through the end of the week. By Friday,
interior afternoon temperatures are forecast to reach typical
readings in the upper 80s to low 90s, and this will continue
through the weekend. Meanwhile along the coast, Monday and Tuesday
are expected to be the warmest days of the week, with highs likely
reaching into the low and even mid 70s in some places. Wednesday
and beyond, the gradual resurgence of marine clouds will likely
bring high temperatures back down to normal readings in the 60s.

As for precipitation, very little of it can be expected for the
foreseeable future. However, a passing upper level disturbance
from the southwest may provide just enough mid-level moisture and
lift to generate a few mostly dry thunderstorms toward the middle
of the week... Most likely on Wednesday. This remains highly
tenuous, but recent trends suggest that the timing of this threat
is shifting to slightly earlier in the week than previous
forecasts, and if this continues thunderstorms may be possible as
early as late Tuesday. Please see the fire weather section below for
additional details. Brc

Aviation Stratus is in place along much of the coast this
morning. Clearing is expected by midday in crescent city and may
take until mid afternoon at kacv. In the afternoon offshore flow
sets up and will keep the stratus aways from the coast north of
cape mendocino through the evening. The kacv area will likely see
some clouds after midnight, but kcec may stay clear all night. Mkk

Marine Currently winds are fairly light across the waters,
only around 10 to 15 kt over the outer waters according to the
evening ascat pass. This is keeping the short period waves around
2 to 3 feet in most areas. There are still two swells moving
through the waters. First there is a mid period NW swell around 3
to 4 feet 12 seconds. Second, there is also a southerly swell
around 2 feet at 15 seconds. These 3 different waves are showing
up distinctly at the buoys.

These conditions are expected to persist through the morning with
winds starting to increase this afternoon. Have cancelled the
ongoing small craft advisory for the outer waters for this
morning, otherwise it remains out through Tuesday morning starting
at noon today.

Tonight and Monday the northerly winds continue to increase over
the northern outer waters. This will increase the steep waves and
they will propagate into the southern waters. Steep waves over the
waters may reach heights of 10 to 12 feet. The winds are expected
to remain less than 10 kt in the inner waters (aside from locally
higher areas just south of the capes). The short period waves
will increase in the inner waters, but are expected to remain just
below small craft advisory levels. The swells are expected to
remain fairly persistent with periods diminishing slightly.

Monday night into Tuesday morning the northerly winds will
diminish fairly quickly as an upper level trough approaches the
area and disrupts the pressure gradient. This approaching low will
bring widespread southerly winds to the waters Tuesday night and
Wednesday. These will increase to around 10 to 15 kt through
Thursday. Mkk

Fire weather Seasonably hot weather will continue Sunday, with
temperatures peaking on Monday and Tuesday. Inland afternoon high
temperatures are likely to climb from the mid to upper 90s today,
to between 100 and 107 degrees Monday and Tuesday. In addition to
the increasing heat, humidity will also decrease, with low
afternoon minimums expected and moderate to poor overnight
recoveries. While winds are not expected to be particularly
strong on a large scale, gusty offshore winds are expected to
develop Sunday night and Monday morning across primarily the upper
elevations of del norte county. This combination of gusty winds
and poor overnight recoveries may result in elevated conditions
Sunday night in those areas. Otherwise, winds will remain
generally light and dominated by daytime onshore nighttime
offshore flow that is significantly augmented by local terrain.

Meanwhile, little to no wetting precipitation is expected for the
foreseeable future. However, the probability of isolated and
mostly dry thunderstorms appears to be increasing slightly across
parts of northwest california toward the middle of the week. While
earlier forecasts highlighted Thursday as the most likely day for
this to occur, latest trends suggest that the most likely day for
any local lightning strikes has moved up to Wednesday. These
trends will continue to be monitored in the coming days. Brc

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters... Small craft advisory from noon today to 9 am pdt Tuesday for
pzz470-475.

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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HBYC1 - 9418767 - North Spit, CA 5 mi86 min 58°F1017.3 hPa
46244 - Humboldt Bay, North Spit, CA 11 mi32 min 57°F5 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 21 mi22 min NNW 9.7 G 12 56°F1017.7 hPa
46213 - Cape Mendocino, CA (094) 48 mi32 min 64°F6 ft

Wind History for North Spit, Humboldt Bay, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Arcata / Eureka, Arcata Airport, CA12 mi69 minNW 61.25 miOvercast with Haze59°F53°F81%1017.4 hPa
Fortuna Rohnerville Airport, CA19 mi67 minWNW 1210.00 miA Few Clouds70°F59°F69%1016.6 hPa

Link to 5 minute data for KACV

Wind History from ACV (wind in knots)
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Last 24hrNW6NW8NW6NW5CalmCalmSE4CalmSE3CalmCalmSE3S6E4S4CalmE3CalmCalmNW7NW7W6NW6NW5
1 day agoNW7NW8NW7CalmSW4SW3SE3S3SE6S5S8S5SE4SE3CalmE3CalmCalmCalm4W5W5S6NW7
2 days agoNW11
G16
NW10N9NW7NW3SE6S6SE4SE5SE4E4SE3CalmCalmE3CalmCalmCalmW5CalmNW6NW6NW8NW6

Tide / Current Tables for Samoa, Humboldt Bay, California
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Samoa
Click for Map
Sun -- 01:15 AM PDT     Moonrise
Sun -- 02:25 AM PDT     0.57 feet Low Tide
Sun -- 06:36 AM PDT     Sunrise
Sun -- 09:30 AM PDT     5.00 feet High Tide
Sun -- 01:46 PM PDT     3.25 feet Low Tide
Sun -- 04:27 PM PDT     Moonset
Sun -- 08:00 PM PDT     Sunset
Sun -- 08:13 PM PDT     7.22 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.31.20.60.71.22.13.13.94.654.94.53.93.43.33.64.35.26.16.97.27.16.35.1

Tide / Current Tables for Humboldt Bay Entrance, California
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Humboldt Bay Entrance
Click for Map
Sun -- 01:15 AM PDT     Moonrise
Sun -- 02:25 AM PDT     0.57 feet Low Tide
Sun -- 06:36 AM PDT     Sunrise
Sun -- 09:02 AM PDT     3.90 feet High Tide
Sun -- 01:46 PM PDT     3.25 feet Low Tide
Sun -- 04:28 PM PDT     Moonset
Sun -- 07:45 PM PDT     6.12 feet High Tide
Sun -- 08:00 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.810.60.71.11.82.63.33.73.93.83.73.53.33.33.54.14.85.566.15.85.14

Weather Map and Satellite Images
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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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Wind Forecast for Eureka, CA (18,4,5,8)
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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.