Friday, August18, 2017 L-36.com


Marine Weather and Tides
Inverness, 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 6:27AMSunset 8:00PM Friday August 18, 2017 8:43 PM PDT (03:43 UTC) Moonrise 2:06AMMoonset 4:46PM Illumination 10% 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
PZZ545 Point Reyes To Pigeon Point To 10 Nm- 832 Pm Pdt Fri Aug 18 2017
Tonight..SW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft at 11 seconds. Patchy fog after midnight.
Sat..S winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 3 to 5 ft at 10 seconds and S 3 ft at 15 seconds. Patchy fog in the morning.
Sat night..S winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 3 to 5 ft at 10 seconds.
Sun..S winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 4 to 6 ft at 10 seconds.
Sun night..SW winds 10 kt. Wind waves 2 ft or less. NW swell 4 to 6 ft at 10 seconds.
Mon..SW winds 5 to 15 kt. Wind waves 1 to 3 ft...becoming 2 ft or less. NW swell 4 to 6 ft...decreasing to 3 to 5 ft.
Tue..W winds 5 kt. Wind waves 2 ft or less. NW swell 2 to 4 ft.
Wed..W winds 10 kt. Wind waves 2 ft or less. NW swell 2 to 3 ft.
...san francisco bar/fourfathom bank forecast..... In the deep water channel...combined seas 4 to 5 ft with a dominant swell period of 10 seconds. Across the bar...combined seas 4 to 6 ft with a dominant swell period of 10 seconds. Maximum ebb current of 1.9 knots at 01:12 am Saturday and 1 knots at 02:24 pm Saturday.
PZZ500 832 Pm Pdt Fri Aug 18 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... As high pressure builds into the eastern pacific winds will increase especially for the northern outer waters. Locally steep wind waves will also accompany increasing winds.

7 Day Forecast for Marine Location Near Inverness, CA
   Hourly   EDIT   Help
location: 38.11, -122.87     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 182342
afdmtr
area forecast discussion
national weather service san francisco bay area
442 pm pdt Fri aug 18 2017

Synopsis Look for one more day of minor warming this afternoon
as a ridge of high pressure continues to build into our region.

Minor cooling can be expected over the weekend into next week as
an upper level low and shortwave trough move into our region.

Overnight clouds can be expected especially along the coast.

Discussion As of 1:47 pm pdt Friday... This morning's low
clouds were quick to clear for most locations as we transition to
a mostly clear afternoon. A few areas along the monterey bay
shoreline and coastal areas from san francisco northward still
have some lingering clouds. Synoptically-speaking, there is an
upper level ridge centered near 38n 135w that has gradually
strengthened over the past 24 hours. This strengthening is
expected to correspond with several degrees of warming at the
surface for inland areas. When all is set and done this Friday
afternoon, expect highs to reach the 60s and 70s along the coast
and 80s and 90s for the interior. This equates to temperatures
near middle august climatological normals along the coast, and
about 2 to 7 degrees above normal for the interior. Can't rule out
the chance that a few areas near pinnacles national park surpass
the century mark.

Over the weekend an upper level low will develop just off the
coast of point conception. This will allow for heights and
thickness values over central and northern california to
decrease. We'll see afternoon temperatures across the interior
trend downward several degrees per day through the weekend.

The main thought on many minds as we head into next week is the
cloud cover for Monday morning's solar eclipse. If conditions
permit, the partial solar eclipse can be viewed throughout
california. Right now, models are all in good agreement that the
upper level low will remain parked near point conception in
southern california. For us along the central coast and north to
the san francisco bay area, this yields a few outcomes. For one,
the low can help mix out the marine layer, resulting in mostly
clear conditions. On the other hand, the upper low could help to
enhance the marine layer depth. We'll know a little bit more over
the weekend and will continue to monitor the marine layer's
response to the trough. Climatologically, the best locations in
the bay area for clear skies on a mid late august morning would be
interior areas of the east bay away from the coast, as well as the
higher elevations in the santa cruz mountains, north bay
mountains, and diablo range. The eclipse of the Sun will begin
shortly after 9:00 am pdt for the bay area with peak obscuration
happening around 10:15 am pdt. Peak obscuration of the Sun will
range from 71 percent in monterey and up to 78 percent in santa
rosa.

Aviation As of 4:45 pm pdt Friday... Clouds are hugging most of the
coastline and with a nearly 3 mb west-to-east surface gradient
component, only a matter of time before it moves back to most
terminals. Guidance is running with a range of solutions however
generally went with middle of the road start times that would
still be earlier than this morning. CIGS forecast to be in the ifr
to low-end MVFR categories. Moderate confidence.

Vicinity of ksfo...VFR with winds up to 20 kt currently. Look for
cigs in the ifr MVFR category to return around 09z although
possibly earlier than that. Winds will diminish after 04z.

Moderate confidence.

Sfo bridge approach... Similar to ksfo although sct deck could
impact approach as early as 07z.

Monterey bay terminals... CIGS down to 005 forecast to return
around 0#z at kmry and later at ksns. Will stay ifr all night with
a return toVFR around 17-18z. Moderate confidence.

Marine As of 01:30 pm pdt Friday... Expect increasing
northwesterly winds to continue through the weekend as high
pressure builds over the eastern pacific. Locally steep wind waves
will also accompany the increasing winds.

Mtr watches warnings advisories
Tngt Sca... Pt arena to pigeon pt 10-60 nm
public forecast: rowe
aviation: bell
marine: as
visit us at

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
PRYC1 - 9415020 - Point Reyes, CA 10 mi43 min W 1.9 G 2.9 62°F 61°F1014.4 hPa (+0.0)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 25 mi53 min SSW 3.9 G 7.8 59°F 59°F4 ft1014.7 hPa (-0.4)
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 25 mi33 min NNW 1.9 G 3.9 55°F 57°F1014.8 hPa55°F
46237 - San Francisco Bar, CA (142) 26 mi43 min 61°F4 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 27 mi56 min WSW 15 60°F 1014 hPa
RCMC1 - 9414863 - Richmond, CA 28 mi43 min S 2.9 G 5.1 62°F 65°F1013.7 hPa (-0.0)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 30 mi43 min SW 9.9 G 14 62°F 1014.1 hPa (-0.0)
FTPC1 - 9414290 - San Francisco, CA 30 mi43 min W 2.9 G 8.9 60°F 61°F1014.5 hPa (+0.0)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 32 mi43 min SW 13 G 17 63°F 1013 hPa (+0.4)
PXSC1 33 mi43 min 62°F 59°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 33 mi43 min WSW 7 G 12 61°F 1013.1 hPa (+0.0)
46214 - Point Reyes, CA (029) 34 mi43 min 62°F7 ft
OBXC1 35 mi43 min 62°F 59°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 35 mi43 min W 8 G 11 62°F 1014.2 hPa (-0.0)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 36 mi43 min W 12 G 15
AAMC1 - 9414750 - Alameda, CA 38 mi43 min WNW 8 G 12 62°F 69°F1014.8 hPa (-0.0)
LNDC1 38 mi43 min WNW 6 G 8.9 62°F 1014.3 hPa (-0.0)
MZXC1 - 9415102 - Martinez-Amorco CA 40 mi43 min WSW 14 G 17 67°F 71°F1013 hPa (+0.6)58°F
PCOC1 - 9415144 - Port Chicago, CA 44 mi43 min WSW 13 G 17 69°F 71°F1012.3 hPa (+0.5)

Wind History for Point Reyes, CA
(wind in knots)    EDIT      (on/off)   Help
9
PM
10
PM
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
Last
24hr
W7
W5
W7
NW4
W3
W2
SW1
W2
W1
--
--
SE1
S1
E1
G4
SE3
W1
E5
S1
G4
SW2
SE4
SE3
S3
SW1
G4
W2
1 day
ago
SE1
G4
SE4
E5
G8
SE3
G10
E6
G9
SE2
G6
E5
G8
SE6
E6
G9
SE4
G9
SE7
G10
SE7
G10
SE7
E7
G10
E6
G10
SE6
SE6
E5
G8
SE4
SW2
SW1
G4
S2
W4
G8
W6
2 days
ago
W6
G10
W3
E1
S1
G4
SE1
S1
--
SW1
E1
S3
SE1
G4
SW1
SE3
SE3
G8
SE7
G12
SE3
G8
SE7
G10
SE7
G10
SE9
E9
G12
E5
G9
E6
G9
SE5
G8
E4

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Novato / Gnoss Field, CA17 mi48 minN 1010.00 miFair64°F57°F78%1013.5 hPa
Petaluma Municipal Airport, CA17 mi48 minVar 6 G 1210.00 miFair61°F57°F88%1014.2 hPa

Wind History from DVO (wind in knots)
9
PM
10
PM
11
PM
-12
PM
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
Last 24hrN10
G16
NW6CalmCalmNW73CalmN5N5NW4NE5CalmCalm444N7N10N15N15N12
G17
N13
G18
N12N12
1 day agoN5
G10
N7N6NW5CalmCalmCalmCalmSW3SW3CalmCalm545N8
G14
N13NW14
G20
N15NW7
G16
SW11
G17
CalmN10N9
G16
2 days agoCalm3CalmCalmSW4CalmN4CalmCalmCalmCalmSW4334SE7NE8SE74NE11N10N11N12N7

Tide / Current Tables for Inverness, Tomales Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Inverness
Click for Map
Fri -- 03:06 AM PDT     Moonrise
Fri -- 04:46 AM PDT     -0.54 feet Low Tide
Fri -- 06:29 AM PDT     Sunrise
Fri -- 11:11 AM PDT     4.24 feet High Tide
Fri -- 04:33 PM PDT     2.28 feet Low Tide
Fri -- 05:46 PM PDT     Moonset
Fri -- 08:00 PM PDT     Sunset
Fri -- 10:05 PM PDT     6.07 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.92.61.20.2-0.4-0.5-0.10.71.82.93.84.24.13.73.22.62.32.32.93.84.85.76.15.9

Tide / Current Tables for Point Reyes, California Current
   EDIT      (on/off)   Help   One Week of Data
Point Reyes
Click for Map
Fri -- 12:20 AM PDT     -1.40 knots Max Ebb
Fri -- 03:07 AM PDT     Moonrise
Fri -- 04:26 AM PDT     0.00 knots Slack
Fri -- 06:30 AM PDT     Sunrise
Fri -- 07:35 AM PDT     1.09 knots Max Flood
Fri -- 10:46 AM PDT     -0.00 knots Slack
Fri -- 01:03 PM PDT     -0.68 knots Max Ebb
Fri -- 04:20 PM PDT     0.00 knots Slack
Fri -- 05:46 PM PDT     Moonset
Fri -- 07:13 PM PDT     0.87 knots Max Flood
Fri -- 08:00 PM PDT     Sunset
Fri -- 10:04 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.4-1.3-1.1-0.8-0.30.30.81.11.10.90.4-0.1-0.5-0.7-0.6-0.4-0.10.30.70.90.80.50-0.6

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 San Francisco/Monterey Bay Area, CA (23,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Sacramento, 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.