Friday, March24, 2017 L-36.com


Marine Weather and Tides
Manila, CA

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:09AMSunset 7:35PM Friday March 24, 2017 1:03 AM PDT (08:03 UTC) Moonrise 4:19AMMoonset 3:04PM Illumination 11% Phase: Waning Crescent; Moon at 26 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
    EDIT      (on/off)   Help
This is a Weather Statement Zone, please check the Date to see if it has expired
PZZ410 /o.can.keka.ma.w.0062.000000t0000z-161123t1115z/ 301 Am Pst Wed Nov 23 2016
.the special marine warning is cancelled... The affected areas were... Coastal waters from pt. St. George to cape mendocino ca out 10 nm... Humboldt bay bar... The Thunderstorms have moved out of the area and no longer pose a significant threat to boaters. Lat...lon 4083 12412 4082 12417 4085 12417 4076 12423 4081 12418 4082 12413 4080 12418 4077 12420 4075 12419 4075 12422 4070 12426 4071 12427 4044 12442 4044 12443 4050 12450 4087 12429 4087 12416 4086 12417 4085 12409 time...mot...loc 1058z 282deg 14kt 4078 12425 4051 12443 4020 12433
PZZ400 852 Pm Pdt Thu Mar 23 2017
Synopsis for northern california waters..An approaching front will bring southerly gales to the waters tonight. Isolated storm force gusts will be possible well offshore in the north. Winds will decrease behind the front on Friday and turn northerly on Saturday. Another system will bring near gale to gale force winds and large wind driven waves Sunday into Monday.

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


Area Discussion for - Eureka, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 keka 240510
afdeka
area forecast discussion
national weather service eureka ca
1010 pm pdt Thu mar 23 2017

Synopsis Moderate to heavy rain and gusty winds can be expected
tonight and tomorrow, with pleasant conditions Saturday. Another
storm system will bring more rain and gusty wind Sunday and Monday
as well.

Update Winds have increased along the coast more quickly than
previously expected. Gusts of 40 to 45 mph have been reported
around the humboldt bay area this evening. These are expected to
increase slightly later tonight and diminish towards morning. Have
increased the winds in the forecast and issued a wind advisory for
the humboldt county coast. Mkk

Prev discussion /issued 351 pm pdt Thu mar 23 2017/
discussion... After a mild and pleasant first half of the day,
active weather is knocking on the door as a potent spring cold
front approaches the region. Satellite imagery reveals a visually
impressive occluded low pressure system well off the washington
coast, with a sweeping cold front draped just offshore along the
pacific northwest coast before turning westward well out into the
central pacific. This cold front is steadily approaching the
region, and a leading stratiform rain shield is currently just
offshore from northwest ca. This rain shield will steadily march
through the area between this evening and early tomorrow
afternoon, bringing moderate to heavy rain to much of the area.

This rain will likely not result in any main stem river flooding,
but the expected 1 to 3" totals will likely result in some minor
nuisance flooding and will increase the potential for mudslides.

Stratiform rain will cease quickly from NW to SE as the cold front
passes through the area tomorrow morning and early afternoon, and
after a brief break, waves of showers with perhaps a strike of
lightning or two will move through mainly del norte and humboldt
counties Friday afternoon through Saturday morning.

The bigger story may actually be the expected strong southerly
winds, which will steadily increase through the evening and peak
overnight tonight. The strongest wind gusts are expected to occur
in the exposed high elevations of humboldt and del norte counties,
near point saint george and crescent city, and in SW humboldt
county near the lost coast and king range... With gusts to 55 mph
possible. Gusty winds will also be possible in most other areas,
particularly along the mendocino coast headlands and other exposed
high elevations across the interior. Wind speeds will decrease
sharply tomorrow morning as the cold front passes through the
area.

Lastly... Snow levels will be generally high with this system and
actually rising in most areas through the night due to warm air
advection aloft. However, one exception will likely occur across
the trinity horn due to a combination of evaporative and upslope
cooling, bringing snow levels down to around 3000 to 4000 feet in
the vicinity of trinity lake and the adjacent highway 3 corridor.

While there is a considerable amount of uncertainty as to whether
temperatures can cool enough between now and then to bring
accumulating snow all the way down to highway 3, with the
exception of scott mountain pass, this effect is frequently
observed in this region, and model guidance does carry this
signal. Opted not to hoist any winter weather advisories given
the high uncertainty, small geographic region, and limited
impacts of expected snow. However, motorists should be prepared to
encounter some light slushy snow along highway 3 north of
weaverville overnight tonight and tomorrow morning.

Conditions will improve markedly Saturday as a transient upper
level ridge builds overhead, but this will be brief. Another
potent storm system will bring a round of moderate to briefly
heavy rain, gusty south winds, and high elevation snow Sunday and
Monday, with similar impacts if slightly lower rain accumulations.

Stay tuned for more details regarding this storm system in the
coming days.

Another transient ridge will result in pleasant conditions again
Tuesday, followed by a weaker storm system and perhaps some
modest rain Wednesday and Thursday. /brc
aviation... Increasing clouds and winds across all terminals this
afternoon. Do have wind shear mention for late this afternoon
through the overnight hours for all terminals. Low level wind shear
up to 50 kt for crescent city and arcata airports. Wind shear to 35
kt for ukiah airport. Rain will also be moving into the area
starting late this afternoon. The heaviest rain will be during the
overnight hours into tomorrow daytime. With conditions lowering to
MVFR. Winds will diminish by early tomorrow morning. /rcl
marine... Active weather pattern will continue through this weekend.

Southerly gales through tonight, another period of strong
southerlies on Sunday.

This afternoon, a strong weather front is approaching the coast of
nw california. Southerly winds have been increasing ahead of the
front. Do expect sustained south winds to 35 kt with gusts to 45 kt.

Strongest winds will be over the northern outside waters. Thus, gale
warning is in effect for most of the coastal waters except for the
southern inside waters. The gale warning will be through most of
tonight. Winds will subside to below gale force level by late
tonight. Winds will be lighter and from the southwest on Friday.

Winds will remain light and from the west on Saturday. By Saturday
night, winds will shift back to the south and increase as another
weather front approaches the coast. Do expect stronger winds to
return to the area on Sunday.

With the increase in winds, the seas will be elevated through
tonight. Have combined seas to 14 ft for tonight. Waves will
subside to around 9 ft tomorrow as the wind wave subsides while
the westerly swell remains. Seas will remain at 9 to 10 ft through
Saturday, before increasing due to wind waves on Sunday.

Changes to the previous forecast package are fairly minor. Used
ecmwf/gfs in refreshing the forecast package.

Eka watches/warnings/advisories
Ca... Wind advisory until 5 am pdt Friday for caz101>106.

Northwest california coastal waters... Gale warning until 3 am pdt Friday for pzz450-470-475.

Small craft advisory until 3 pm pdt Friday for pzz455.

Visit us at http://

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
HBYC1 - 9418767 - North Spit, CA 5 mi87 min SSE 27 G 34 52°F 53°F1015.3 hPa
46244 - Humboldt Bay, North Spit, CA 11 mi42 min 53°F10 ft
46022 - EEL RIVER - 17NM West-Southwest of Eureka, CA 21 mi73 min SSE 25 G 29 53°F 52°F10 ft1013.6 hPa (-0.3)46°F
46213 - Cape Mendocino, CA (094) 48 mi41 min 53°F13 ft

Wind History for North Spit, Humboldt Bay, CA
(wind in knots)    EDIT      (on/off)   Help
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
Last
24hr
S2
SE3
S3
SE4
SE4
SE4
SE9
SE6
SE7
S17
S17
S19
SW11
G16
S18
G24
SE15
S14
G18
S19
G26
SE12
G16
SE19
G23
SE28
S25
G31
SE35
SE31
G38
S29
G37
1 day
ago
S13
SW13
G16
SW14
SW16
SW13
G17
S14
G17
SW9
G12
S8
S7
SW7
G11
SW6
W13
W7
NW11
NW9
N9
N10
NW10
N10
N10
N9
N9
N7
SE4
2 days
ago
S13
S8
G13
SE4
S7
S8
SE5
S16
S20
S19
S20
S24
S18
G22
S19
S14
SE11
G16
S14
G18
S13
G16
S17
S15
SW14
G19

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Arcata / Eureka, Arcata Airport, CA12 mi71 minSE 18 G 2910.00 miLight Rain and Breezy49°F44°F83%1015.2 hPa
Fortuna Rohnerville Airport, CA19 mi69 minESE 28 G 3210.00 miOvercast and Windy48°F41°F76%1016.9 hPa

Wind History from ACV (wind in knots)
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last 24hrCalmCalmE5E3E3E6SE6SE7S6S7S5SW11SW14
G21
S14
G26
S8S20
G29
SE13
G20
SE11
G19
SE15
G21
SE17
G31
SE16
G32
SE16
G29
SE18
G29
SE16
G26
1 day agoS4S6W8SW7SW6SW6SE5SE4SE4W8SW6SW5W6NW8NW10NW10NW9N10N4NE4CalmE3E3Calm
2 days agoSE4S9SW16SE4CalmSE3CalmSE4SE6S10S10S16
G24
S15
G23
S18
G26
SE14
G20
SE9S11
G20
SE9SE8S10SW6S10S7SW9

Tide / Current Tables for Samoa, Humboldt Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Samoa
Click for Map
Fri -- 03:52 AM PDT     2.78 feet Low Tide
Fri -- 05:18 AM PDT     Moonrise
Fri -- 07:12 AM PDT     Sunrise
Fri -- 10:00 AM PDT     6.66 feet High Tide
Fri -- 04:04 PM PDT     Moonset
Fri -- 04:32 PM PDT     0.23 feet Low Tide
Fri -- 07:33 PM PDT     Sunset
Fri -- 11:19 PM PDT     6.01 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.24.53.732.83.13.84.75.66.46.76.35.342.51.10.30.30.923.24.55.56

Tide / Current Tables for Humboldt Bay Entrance, California
   EDIT      (on/off)   Help   One Week of Data
Humboldt Bay Entrance
Click for Map
Fri -- 03:57 AM PDT     2.76 feet Low Tide
Fri -- 05:19 AM PDT     Moonrise
Fri -- 07:13 AM PDT     Sunrise
Fri -- 09:40 AM PDT     5.64 feet High Tide
Fri -- 04:04 PM PDT     Moonset
Fri -- 04:40 PM PDT     0.31 feet Low Tide
Fri -- 07:33 PM PDT     Sunset
Fri -- 11:02 PM PDT     5.14 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.43.93.32.92.833.64.35.15.55.65.24.43.32.11.10.40.40.91.834.14.85.1

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of CentralWestCoast    EDIT
Geos

Wind Forecast for Eureka, CA (4,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Eureka, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.