Friday, September22, 2017 L-36.com


Marine Weather and Tides
Caspar, CA

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 6:59AMSunset 7:11PM Thursday September 21, 2017 11:13 PM PDT (06:13 UTC) Moonrise 7:27AMMoonset 7:25PM Illumination 3% Phase: Waxing Crescent; Moon at 2 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- 903 Pm Pdt Thu Sep 21 2017
Tonight..N winds 5 to 15 kt. Waves nw 7 ft at 8 seconds.
Fri..NW winds 10 to 20 kt with gusts to 30 kt. Waves nw 8 ft at 7 seconds.
Fri night..N winds 5 to 15 kt. Waves nw 5 ft at 5 seconds... And nw 6 ft at 10 seconds.
Sat..N winds 5 to 15 kt. Waves N 3 ft at 5 seconds...and nw 3 ft at 10 seconds.
Sat night..N winds 5 to 15 kt. Waves N 5 ft at 6 seconds.
Sun..NW winds 5 to 15 kt. Waves N 4 ft at 6 seconds...and nw 2 ft at 11 seconds.
Mon..N winds 5 to 15 kt. Waves N 5 ft at 7 seconds...and nw 2 ft at 13 seconds.
Tue..N winds 5 kt. Waves nw 4 ft at 6 seconds...and nw 3 ft at 12 seconds.
PZZ400 903 Pm Pdt Thu Sep 21 2017
Synopsis for northern california waters..The northwesterly swell will continue to subside through the rest of the week. Building high pressure will bring increasing northerly winds Friday and into the weekend.

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 212309
afdeka
area forecast discussion
national weather service eureka ca
409 pm pdt Thu sep 21 2017

Synopsis Frost will be possible across interior valleys
overnight tonight, but a steady warming trend is expected tomorrow
through early next week. Aside from perhaps a few showers near the
coast tonight, precipitation will be minimal for the foreseeable
future.

Discussion While cool conditions will persist through tomorrow,
a gradual warming trend will take place beginning Saturday and
continuing through early next week. Shower activity today has
remained across the waters thanks to largely northerly steering
flow, although there remains a slight chance for a shower or two
to clip the redwood coast late this afternoon and evening,
particularly near CAPE mendocino. Otherwise, precipitation has
ended for the foreseeable future as the upper level trough drifts
farther and farther from the region. Frost will again be a concern
across interior valleys, particularly trinity and northern
mendocino counties. Temperatures may actually be colder than they
were the night before in many of these valleys, as the airmass
will be drier and cloud cover not as extensive. A few isolated
pockets may even dip slightly below freezing, but this is not
expected to be widespread enough to warrant a freeze warning.

Building high pressure aloft will cause temperatures to steadily
rise tomorrow through early next week, and by Monday afternoon
highs are likely to exceed 90 degrees in many interior valleys.

This period of above normal temperatures will likely continue
through at least Wednesday, but should begin a slight downward
trend towards the latter half of the week as the upper ridge
begins to break down. Precipitation will be hard to come by for
the foreseeable future. Brc

Aviation No major aviation concerns expected during the 24
hour TAF period as post frontal weather conditions will result in
generally widespreadVFR cigs. Cool air advection mixing and a
weak offshore flow will suppress widespread stratus formation at
the coast overnight and morning. However, early morning local
(shallow) fog development is possible. As far as the remainder of
the day goes, mid afternoon vis Sat pict show lots of mid-high
cloud advection into northwest california. Also a few local small
bldups due to residual moisture, and afternoon heating may be
enough for an isolated shower to move over the coastal taf
stations (cec & acv) and possibly coastal hills. An isolated
shower may also develop over a few interior locations. The
exception with theVFR CIGS will be brief MVFR CIGS associated
with any afternoon showers. Ta

Marine The northwesterly will subside through the next several
days. High pressure will bring increasing northerly winds over
our waters which will in turn generate some steep wind waves this
weekend. Small craft advisories will likely be hoisted for the
outer water zones over the next 24 hours for the increasing winds
as gusts will peak around 20-25 knots out past 10 nautical miles.

Winds then increase for all of the waters by Sunday and continue
into early next week with near gale force gusts possible for the
outer waters.

Tuesday into Wednesday a shortwave will approach the area and this
is expected to break up the pressure gradient and diminish the winds
and seas. Models are in general agreement on this, although the
ecmwf is a bit slower than the gfs. Generally sided with the ecmwf
and a slower solution. Mkk kar

Fire weather Cool and humid conditions will continue through
tomorrow, but a steady warming and drying trend is expected
Saturday through early next week. Temperatures will reach near
normal values by Saturday, and are expected to be well above
normal Monday through Wednesday. In addition to the warming
temperatures, humidity will also steadily drop, both during the
afternoon and overnight periods... Particularly at high elevation.

The period of greatest concern will be Monday and Tuesday, as
nocturnal northeasterly winds will increase markedly in addition
to the well above normal temperatures. This will be most
concerning in our southern areas like mendocino and lake counties
where winds will be strongest and fuels the driest. Brc

Eka watches warnings advisories
Ca... Frost advisory from 1 am to 8 am pdt Friday for caz107-108-110-
111.

Northwest california coastal waters... None.

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 mi34 min NNW 12 G 16 1013.5 hPa
ANVC1 - 9416841 - Arena Cove, CA 31 mi44 min E 4.1 G 5.1 54°F 53°F1014.1 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
E2
G5
N2
G6
E3
E2
E3
E2
E3
E3
E3
E4
W2
NW5
G11
W10
W12
G15
W10
G17
W12
G19
W13
G21
W7
G14
NW8
G13
W2
G7
S2
E2
G7
E3
E3
1 day
ago
E3
E3
NE3
NE3
E3
E1
--
--
--
N1
N1
--
--
--
W9
G12
NW8
G16
NW6
G13
NW4
G9
NW7
G11
W3
G7
W2
E1
G4
E2
E2
G5
2 days
ago
W2
G6
W1
G4
E2
W2
NE1
NW4
G8
NW7
G11
W7
G13
W10
G13
W10
G14
W10
G14
W9
G13
NW6
G10
NW5
G9
NW2
G5
S1
E3
E3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ukiah Municipal Airport, CA36 mi78 minN 310.00 miFair55°F41°F59%1012.1 hPa

Wind History from UKI (wind in knots)
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
11
PM
Last 24hrN6N5W3CalmCalmSW4CalmE3Calm3N46NW9
G14
NW9
G18
W8W8
G21
W14
G25
W13
G21
NW11
G17
N6
G20
N7N6N3Calm
1 day agoN3N3CalmNW5W3CalmN3CalmCalmSE5Calm6NW85NW10
G22
W8
G17
W10
G20
NW11N8
G20
W8NW6NW11
G18
N11
G18
N9
G16
2 days agoNW10E3NW6NW6N5NW5NW8CalmCalmN5N7N9NW11
G16
W96N9
G17
NW12
G17
NW10W9
G17
N7N5N7N8N7

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
Fri -- 01:00 AM PDT     5.31 feet High Tide
Fri -- 06:55 AM PDT     1.02 feet Low Tide
Fri -- 07:03 AM PDT     Sunrise
Fri -- 09:27 AM PDT     Moonrise
Fri -- 01:11 PM PDT     5.55 feet High Tide
Fri -- 07:11 PM PDT     Sunset
Fri -- 07:28 PM PDT     0.60 feet Low Tide
Fri -- 08:56 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
55.354.23.121.311.32.13.24.35.25.55.34.63.52.21.20.70.71.22.13.2

Tide / Current Tables for Point Cabrillo, California Current
   EDIT      (on/off)   Help   One Week of Data
Point Cabrillo
Click for Map
Fri -- 01:47 AM PDT     -0.00 knots Slack
Fri -- 04:27 AM PDT     -1.12 knots Max Ebb
Fri -- 07:03 AM PDT     Sunrise
Fri -- 08:04 AM PDT     0.00 knots Slack
Fri -- 09:27 AM PDT     Moonrise
Fri -- 10:54 AM PDT     0.99 knots Max Flood
Fri -- 01:54 PM PDT     -0.00 knots Slack
Fri -- 04:45 PM PDT     -1.23 knots Max Ebb
Fri -- 07:11 PM PDT     Sunset
Fri -- 08:30 PM PDT     0.00 knots Slack
Fri -- 08:56 PM PDT     Moonset
Fri -- 11:24 PM PDT     1.03 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.5-0.1-0.7-1.1-1.1-0.9-0.5-00.50.910.80.5-0.1-0.7-1.1-1.2-1-0.7-0.30.30.81

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 (2,6,7,8)
      (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.