Sunday, March26, 2017 L-36.com


Marine Weather and Tides
Caspar, 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 7:04AMSunset 7:32PM Saturday March 25, 2017 10:27 PM PDT (05:27 UTC) Moonrise 4:53AMMoonset 4:09PM Illumination 2% Phase: Waning Crescent; Moon at 28 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
PZZ455 Cape Mendocino To Pt Arena Out 10 Nm- 844 Pm Pdt Sat Mar 25 2017
.small craft advisory in effect through Sunday afternoon...
Tonight..S winds 5 to 10 kt. Waves W 10 ft at 14 seconds. Slight chance of rain.
Sun..SE winds 5 to 15 kt...rising to 15 to 20 kt with gusts to around 30 kt. Waves W 4 ft at 7 seconds...and W 9 ft at 12 seconds. Rain.
Sun night..W winds 5 to 10 kt. Waves W 4 ft at 7 seconds... And W 7 ft at 14 seconds. Rain.
Mon..NW winds 5 to 15 kt. Waves W 10 ft at 14 seconds.
Mon night..N winds 10 to 20 kt. Waves nw 12 ft at 15 seconds.
Tue..NW winds 10 to 20 kt. Waves W 12 ft at 16 seconds.
Wed..NW winds 5 to 15 kt. Waves nw 10 ft at 15 seconds.
Thu..NW winds 15 to 25 kt. Waves N 5 ft at 8 seconds...and nw 10 ft at 14 seconds.
PZZ400 844 Pm Pdt Sat Mar 25 2017
Synopsis for northern california waters..Light winds and moderately steep seas will continue across the waters through tonight as a weak high pressure ridge extends across the region. The winds will increase Sunday as a cold front moves across the waters. Winds will diminish by Monday. A westerly swell will move into nw california waters by Monday night.

7 Day Forecast for Marine Location Near Caspar, CA
   Hourly   EDIT   Help
location: 39.35, -123.83     debug


Area Discussion for - Eureka, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 keka 252217
afdeka
area forecast discussion
national weather service eureka ca
317 pm pdt Sat mar 25 2017

Synopsis The next storm system will arrive Sunday morning and
afternoon with widespread rainfall, higher elevation snowfall,
and gusty winds to locations along and west of the coastal range.

The on again off again showery pattern will persist through
Thursday morning, before dry weather returns for the remainder of
the week.

Discussion The next storm system currently resides off the
north coast however some high clouds in its advance are now moving
over the region. This fairly strong area of low pressure will be
undergoing an occlusion process as it treks across the southeastern
pacific sending a trailing cold front eastward. Ahead of this
front, a 925mb jet of 45 to 50 knots will develop across the outer
waters and along the redwood coast from CAPE mendocino north, in
the late Sunday morning into the afternoon time frame. This could
bring some gusty winds to locations to portions of humboldt and
del norte counties. However, winds look to be slightly less than
yesterdays system. As the front crosses the region during the
afternoon and evening hours, widespread rainfall will spread from
west to east. Overall, rainfall amounts don't look to be too
significant, but some locally heavy rainfall is expected, mainly
for portions of humboldt and del norte county along the south and
west facing slopes. Things will be on a downward trend for Monday,
as precipitation becomes more showery. Some higher elevation
snowfall will occur during this time as well, with snow levels
gradually dropping from ~4500 to 3500 feet. Amounts will be light
enough though to preclude any real impacts to area passes, with
the exception being scott mountain pass, where some light
accumulations will occur. As for the convective potential,
although 700mb and 500mb lifted indices do go slightly negative,
modest mid-level lapse rates and negligible mucapes preclude any
thunder inclusion in the zones (forecast) at this time. Another
brief period of transient riding will build across the region
Monday evening into early Tuesday morning, with more dry weather
expected. However, another weak disturbance in the flow aloft may
bring additional precipitation back into the area for Tuesday
afternoon into Thursday morning time frame. This will need to be
watched though, as the models have shown a slight northward drift
in precipitation with some delay also seen in timing. In any
event, after this latter system, high pressure looks to build
across the state with perhaps a prolonged period, featuring mainly
clear skies and dry conditions. /pd/jt

Aviation Vfr conditions across all terminals this afternoon. Do
expect theVFR conditions to persist through first part of tonight.

Rain will be spreading into the area by early tomorrow morning.

Flight categories will be lowering by early morning as more steady
precipitation moves into the area lowering visibilities and ceilings
across all terminasl. Winds will be gusty tomorrow morning, with
wind shear a possibility for crescent city and arcata airports
starting early tommorw morning. /rcl

Marine Fairly active pattern for the marine forecast.

Moderately steep seas and light winds for tonight. Winds will pick
up to advisories and warning level tomorrow morning. Light winds
and moderately steep seas will resume tomorrow night. A fresh
swell will be moving into the area starting on Monday night.

Winds have been fairly light today, with wind speed generally less
than 10 kt. However, waves are moderately steep. Buoys have been
reporting combined seas of 9 to 11 feet at around 9 to 10 seconds.

Do expect the elevated seas to continue through tonight. Thus, issue
a small craft advisory to account for the elevated seas.

The weather front will push towards NW california coast through
tonight. Winds will become south and increase overnight. Winds will
reach gale warning criteria for the northern outside water, while
reaching small craft advisory criteria for the rest of the waters.

This weather front will push through and weaken during the day, the
wind should collapse by the evening. After that, the wind regime
should shift to north and northwest for the rest of the forecast
period.

With a northwest flow, we will have a fresh northwesterly swell
approaching NW california coast by Monday afternoon. The swell will
then remain in the area through the work week.

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

Eka watches/warnings/advisories
Ca... None.

Northwest california coastal waters... Small craft advisory until 3 pm pdt Sunday for pzz450-455-475.

Small craft advisory until 9 am pdt Sunday for pzz470.

Gale warning from 9 am to 3 pm pdt Sunday for pzz470.

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
46014 - PT ARENA - 19NM North of Point Arena, CA 11 mi38 min NNE 3.9 G 5.8 53°F 10 ft1020.4 hPa46°F
ANVC1 - 9416841 - Arena Cove, CA 31 mi40 min E 2.9 G 4.1 49°F 55°F1021.1 hPa

Wind History for Arena Cove, CA
(wind in knots)    EDIT      (on/off)   Help
11
PM
12
AM
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
Last
24hr
E6
E6
E4
E5
E5
E5
NE4
NE3
E4
E4
E3
NW3
G6
NW2
G6
W8
G11
W9
G12
W10
G13
NW8
G13
NW9
G13
W8
G12
W6
G11
W4
NW2
E1
G4
E2
1 day
ago
E12
G17
E12
G18
E15
G24
E15
G22
E20
G26
E19
G31
E19
G25
E18
G25
E17
G28
E17
G25
SW3
SW4
W3
W1
SW4
SW3
SW5
SW4
S2
S4
SE1
E2
E5
E6
2 days
ago
E3
E4
E4
E5
E3
SW1
S3
S3
G7
S7
G11
E5
G9
E2
G5
SW3
G9
E8
G12
E4
G8
E4
G10
SE6
G11
E9
G14
E11
G16

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah, Ukiah Municipal Airport, CA36 mi32 minNW 310.00 miFair48°F44°F86%1019.5 hPa

Wind History from UKI (wind in knots)
11
PM
12
AM
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
Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmW3CalmCalmCalmCalm44NW5SW54W10W55N4CalmNW3
1 day agoCalmSE5CalmS3SE7SE6SE5S9
G16
S11
G20
S11
G18
S8
G17
S9SE5S5SE6S43SE4SE3CalmCalmNW4CalmN3
2 days agoE3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm363SE6S8SW14SW11SW5E3CalmSE3

Tide / Current Tables for Mendocino, Mendocino Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Mendocino
Click for Map
Sun -- 04:30 AM PDT     1.40 feet Low Tide
Sun -- 06:29 AM PDT     Moonrise
Sun -- 07:08 AM PDT     Sunrise
Sun -- 10:35 AM PDT     5.58 feet High Tide
Sun -- 04:58 PM PDT     0.05 feet Low Tide
Sun -- 06:15 PM PDT     Moonset
Sun -- 07:33 PM PDT     Sunset
Sun -- 11:24 PM PDT     5.34 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.73.92.921.51.522.93.94.95.55.553.92.61.30.40.10.41.32.53.74.85.3

Tide / Current Tables for Point Cabrillo, California Current
   EDIT      (on/off)   Help   One Week of Data
Point Cabrillo
Click for Map
Sun -- 02:02 AM PDT     -1.08 knots Max Ebb
Sun -- 05:30 AM PDT     0.00 knots Slack
Sun -- 06:30 AM PDT     Moonrise
Sun -- 07:08 AM PDT     Sunrise
Sun -- 08:22 AM PDT     1.05 knots Max Flood
Sun -- 11:22 AM PDT     -0.00 knots Slack
Sun -- 02:18 PM PDT     -1.38 knots Max Ebb
Sun -- 05:57 PM PDT     0.00 knots Slack
Sun -- 06:15 PM PDT     Moonset
Sun -- 07:33 PM PDT     Sunset
Sun -- 08:52 PM PDT     1.18 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.4-0.9-1.1-1-0.7-0.30.30.8110.70.2-0.4-1-1.4-1.3-1-0.500.61.11.210.6

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 (1,6,7,8)
      (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.