Monday, March25, 2019 L-36.com


Marine Weather and Tides
Manila, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:10AMSunset 7:35PM Monday March 25, 2019 5:24 PM PDT (00:24 UTC) Moonrise 12:00AMMoonset 9:21AM Illumination 75% Phase: Waning Gibbous; Moon at 20 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 239 Pm Pdt Mon Mar 25 2019
Synopsis for northern california waters..Moderate to strong southerly breezes and steep short-period seas will subside through today. Afterwards, calmer conditions are expected tonight and into Tuesday. More hazardous conditions will return with another storm system projected to enter the region Wednesday.


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 252153
afdeka
area forecast discussion
national weather service eureka ca
253 pm pdt Mon mar 25 2019

Synopsis A cold front will continue to push southeast out of
the area this evening as showers gradually decrease in coverage
and intensity. The area will be between storm systems on Tuesday,
with another front tracking through on Wednesday, followed by
continued showery weather on Thursday.

Discussion The main band of frontal precipitation has shifted
e of the county warning area. Snow levels fell to around 3000 feet
in some areas, with light snow amounts. Precipitation behind the
frontal band is more convective in nature as instability increases
across the area. This activity is mainly occurring near and N of
cape mendocino, both over land and the adjacent coastal waters.

Showers over the coastal waters has been the heaviest, with cloud
tops periodically cooling, especially near and just N of cape
mendocino. Showers are oriented nearly parallel to the redwood
coast, but the lines have been gradually shifting E toward the
coast. For the remainder of the afternoon and early evening hours,
this will be the most likely location for isolated thunderstorm
development. After 00z, have included isolated thunder over the
coastal waters and along the coast generally near and N of
patrick's point. It is in this area the the best chances of sub-
zero lifted indices and capes around 500 j kg are expected.

Showers will wind down overnight tonight. A mostly dry day is on
tap for Tuesday, although scattered showers are expected over the
easternmost terrain during the afternoon. A potent storm system
will approach the area Tuesday night and Wednesday. This feature
looks to be aimed more directly toward the NW ca coast with similar
to slightly higher rainfall amounts than the latest event. In
addition, more instability is expected to sweep across the coast
and farther into inland areas on Wednesday. The best positive
vorticity advection is expected to precede the greatest
instability by 3 to 6 hours, but this could change. If the dynamic
and thermodynamic forcing are more in sync, thunderstorm coverage
may become more scattered across the area. Shower activity with
this system will linger into Thursday or Thursday night. Modest
responses to rivers are expected this week, with crest levels
remaining below action stage.

A few showers may linger into Friday morning over the extreme n,
with drier weather anticipated for Saturday. Showers are expected
to return on Sunday, but there are indications that the bulk of
the activity may hold off a bit later and be focus more toward the
pacific nw.

Temperatures will remain near normal through the end of the work
week, with temperatures trending upward over the weekend,
particularly over the interior. Sec

Aviation Rain chances will taper off this afternoon, leading to a
more isolated showery regime this evening. MostlyVFR to MVFR
conditions are expected to prevail through the TAF period, but
intermittent drops to ifr conditions are possible with any heavier
showers.

Marine Southerly winds will continue through most of the week,
with gusty winds slower to subside across the inner waters than
previously expected. As a result, have extended the small craft
advisories over the inner waters through early this evening. Winds
will increase again Tuesday night and into Wednesday as another
system approaches the region. Southerly winds around 20 to 25 knots,
with gusts to around 30 knots will be possible over the outer
waters. Steep short-period seas will develop as a result as another
westerly swell moves through the waters on Wednesday. Combined seas
of 9 to 11 feet will be possible across most of the coastal waters
from Wednesday afternoon through early on Thursday. Small craft
advisories for the outer waters have been put in place for the
increasing winds and building seas from Tuesday evening through
Wednesday night. Additionally, winds will remain elevated through
Thursday afternoon, with a switch to northerly forecast by late
Friday night.

Eka watches warnings advisories
Ca... None.

Northwest california coastal waters...

small craft advisory until 7 pm this evening for pzz450-455.

Small craft advisory from 5 pm Tuesday to 11 pm Wednesday
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 mi49 min 51°F 53°F1017.1 hPa
46244 - Humboldt Bay, North Spit, CA 11 mi55 min 52°F9 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 21 mi35 min S 14 G 19 52°F10 ft1017.4 hPa
46213 - Cape Mendocino, CA (094) 48 mi55 min 53°F10 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 mi32 minSW 1310.00 miMostly Cloudy53°F48°F86%1017.6 hPa
Fortuna Rohnerville Airport, CA19 mi50 minSSW 119.00 miA Few Clouds48°F48°F100%1016.9 hPa

Wind History from ACV (wind in knots)
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Last 24hr------------------------------------------------
1 day ago------------------------------------------------
2 days ago------------------------------------------------

Tide / Current Tables for Samoa, Humboldt Bay, California
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Samoa
Click for Map
Mon -- 12:03 AM PDT     Moonrise
Mon -- 03:48 AM PDT     7.62 feet High Tide
Mon -- 07:11 AM PDT     Sunrise
Mon -- 10:20 AM PDT     Moonset
Mon -- 10:22 AM PDT     0.09 feet Low Tide
Mon -- 05:02 PM PDT     5.81 feet High Tide
Mon -- 07:34 PM PDT     Sunset
Mon -- 10:07 PM PDT     2.38 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.95.36.67.47.67.15.84.12.30.90.10.212.23.54.75.55.85.54.73.72.82.42.6

Tide / Current Tables for Humboldt Bay Entrance, California
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Humboldt Bay Entrance
Click for Map
Mon -- 12:03 AM PDT     Moonrise
Mon -- 03:20 AM PDT     6.52 feet High Tide
Mon -- 07:12 AM PDT     Sunrise
Mon -- 10:21 AM PDT     Moonset
Mon -- 10:22 AM PDT     0.09 feet Low Tide
Mon -- 04:34 PM PDT     4.71 feet High Tide
Mon -- 07:34 PM PDT     Sunset
Mon -- 10:07 PM PDT     2.38 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.74.966.56.45.74.63.21.80.70.10.20.923.24.14.64.74.43.83.22.62.42.6

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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Wind Forecast for Eureka, CA (20,4,5,8)
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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.