Sunday, July22, 2018 L-36.com


Marine Weather and Tides
Dillon Beach, CA

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7/21/2018 Trying to make page Mobile Friendly

Sunrise 6:04AMSunset 8:30PM Sunday July 22, 2018 3:32 PM PDT (22:32 UTC) Moonrise 3:29PMMoonset 1:15AM Illumination 75% Phase: Waxing Gibbous; Moon at 10 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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PZZ540 Point Arena To Point Reyes To 10 Nm- 255 Pm Pdt Sun Jul 22 2018
Tonight..NW winds 10 kt. Wind waves 2 ft or less. Mixed swell nw 3 to 4 ft at 9 seconds and sw 3 ft at 17 seconds. Patchy fog after midnight.
Mon..W winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 2 to 4 ft at 8 seconds and sw 3 ft at 20 seconds. Patchy fog in the morning.
Mon night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 2 to 3 ft at 8 seconds and sw 3 to 4 ft at 20 seconds. Patchy fog after midnight.
Tue..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 2 to 3 ft at 9 seconds and sw 3 to 4 ft at 20 seconds. Patchy fog in the morning.
Tue night..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 2 to 3 ft at 9 seconds and sw 3 to 4 ft at 18 seconds. Patchy fog after midnight.
Wed..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. Mixed swell nw 2 to 4 ft and S 3 to 4 ft. Patchy fog.
Thu..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. Mixed swell nw 3 to 5 ft and S 3 ft. Patchy fog.
Fri..NW winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 4 to 6 ft. Patchy fog.
PZZ500 255 Pm Pdt Sun Jul 22 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light northwesterly winds will continue across the coastal waters today and tonight, though locally stronger near the coast and in the bays. These winds will then moderately increase over the first part of next week along with building long period southerly swells.

7 Day Forecast for Marine Location Near Dillon Beach, CA
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location: 38.25, -122.98     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 222041
afdmtr
area forecast discussion
national weather service san francisco bay area
141 pm pdt Sun jul 22 2018

Synopsis A warming trend is forecast to peak by midweek with
very warm to hot temperatures across the interior. Meanwhile,
onshore flow and marine air will hold temperatures down near the
coast. Dry weather conditions will also persist through the
forecast period.

Discussion As of 01:38 pm pdt Sunday... A persistent marine
layer remains in place over the region again today with low clouds
hugging the coast and temperatures in the 50s and 60s. Meanwhile,
inland areas are under a mainly clear sky (aside from a few
passing high clouds)with temperatures ranging from the 70s to the
90s. All of this is as the region is between a strong mid upper
level ridge of high pressure over new mexico and colorado and low
pressure offshore.

Conditions change very little during the next 24 hours with the
marine air keeping temperatures cooler at the coast while high
pressure to our east slowly builds toward the west coast. A warming
trend is likely to ramp up by Tuesday and Wednesday as the
aforementioned high pressure builds and shifts westward. With this
said, the greatest heat is forecast to remain over the interior and
southern portions of california. With temperatures warming to above
seasonal averages for our inland areas, onshore flow will keep
conditions from warming too much through the workweek. However, as
the air mass aloft warms under the strong high pressure, do expect
very warm to hot conditions in the higher elevations of the
interior. This will result in temperatures ranging from 100-110 deg
f in the hills mountains of interior monterey and san benito
counties. These areas will also struggle to cool much in the
overnight hours with lows only dropping into the 70s to lower 80s.

Thus, a heat advisory remains in effect from Tuesday through
Wednesday evening for these areas as well as the far interior
portion of the salinas valley. Cannot rule out similar afternoon
temperatures in far inland portions of napa county as well,
especially near lake berryessa, yet conditions should cool a bit
more in the nighttime hours.

Temperatures moderate downward slightly across the interior late in
the week as the ridge weakens. Regardless, dry weather conditions
and temperatures above seasonal averages will persist through the
extended forecast period. The marine layer will likely maintain
periods of night and morning clouds near the coast and locally
inland into the valleys. However, may see it become compressed by
midweek with less widespread cloud cover.

Aviation As of 11:05 am pdt Sunday... For 18z tafs.VFR
conditions now prevail at all terminals, with stratus coverage
having retreated towards the coast.VFR conditions will continue
through the afternoon, with ceilings then expected to return by
early evening at the monterey bay terminals, and late evening to
overnight those around san francisco bay. Light to moderate
onshore winds this afternoon and evening.

Vicinity of ksfo... High confidenceVFR through the evening rush.

Westerly winds increasing this afternoon to 15-20 kt.

Sfo bridge approach... Similar to sfo.

Monterey bay terminals...VFR through the late afternoon, but then
early return of ifr CIGS is expected end of the afternoon early
this evening. Light to locally moderate onshore winds.

Marine As of 09:22 am pdt Sunday... Generally light winds will
continue across the coastal waters today and tonight.

Northwesterly winds will then develop and moderately increase over
the first part of next week along with building long period
southerly swells.

Mtr watches warnings advisories
Tngt Sca... Sf bay until 9 pm
sca... Pt pinos to pt piedras blancas 0-10 nm from 11 pm
public forecast: rgass
aviation: blier
marine: blier
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA 17 mi22 min WSW 5.8 G 7.8 60°F1019.7 hPa
PRYC1 - 9415020 - Point Reyes, CA 18 mi32 min SSW 5.1 G 8.9 62°F1019.3 hPa (-0.5)
46214 - Point Reyes, CA (029) 33 mi32 min 60°F6 ft
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 35 mi22 min WNW 5.8 G 7.8 61°F 60°F1020.1 hPa
46237 - San Francisco Bar, CA (142) 37 mi62 min 62°F4 ft
RCMC1 - 9414863 - Richmond, CA 38 mi32 min SSW 1.9 G 4.1 70°F 66°F1018 hPa (-1.1)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 40 mi32 min SW 8.9 G 13 66°F 1018.6 hPa (-1.1)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 40 mi32 min WSW 13 G 15 73°F 1017.1 hPa (-1.5)
FTPC1 - 9414290 - San Francisco, CA 41 mi32 min W 13 G 19 63°F 63°F1019 hPa (-0.8)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 44 mi32 min WSW 7 G 14 67°F 1017.9 hPa (-0.7)
PXSC1 44 mi32 min 67°F 58°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 46 mi32 min W 11 G 13
OKXC1 - 9414776 - Oakland (Berth 34), CA 46 mi32 min W 6 G 13 67°F 1018.8 hPa (-0.7)
OBXC1 46 mi32 min 65°F 58°F
MZXC1 - 9415102 - Martinez-Amorco CA 48 mi32 min WNW 15 G 17 78°F 71°F1016.8 hPa59°F
AAMC1 - 9414750 - Alameda, CA 49 mi32 min W 9.9 G 12 67°F 71°F1019 hPa (-0.7)
LNDC1 49 mi32 min WSW 8 G 11 67°F 1018.8 hPa (-0.6)

Wind History for Point Reyes, CA
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Santa Rosa, Santa Rosa Sonoma County Airport, CA20 mi39 minS 139.00 miA Few Clouds79°F57°F47%1016.7 hPa
Petaluma Municipal Airport, CA20 mi57 minWNW 8 G 1310.00 miFair79°F55°F45%1018.3 hPa
Novato / Gnoss Field, CA24 mi37 minWSW 1310.00 miFair86°F55°F35%1017.3 hPa

Wind History from O69 (wind in knots)
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Last 24hrW10NW5
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4CalmCalmCalmN4Calm4W45NW7W7
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443NW5CalmNW3CalmNW4Calm44NW4W7CalmCalmCalmCalm6

Tide / Current Tables for Tomales Bay entrance, California
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Tomales Bay Entrance
Click for Map
Sun -- 02:14 AM PDT     Moonset
Sun -- 03:11 AM PDT     0.31 feet Low Tide
Sun -- 06:06 AM PDT     Sunrise
Sun -- 09:37 AM PDT     3.27 feet High Tide
Sun -- 02:21 PM PDT     2.11 feet Low Tide
Sun -- 04:28 PM PDT     Moonrise
Sun -- 08:30 PM PDT     Sunset
Sun -- 08:37 PM PDT     5.16 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.31.30.60.30.40.91.62.42.93.23.332.72.32.12.22.53.244.75.15.14.84

Tide / Current Tables for Point Reyes, California Current
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Point Reyes
Click for Map
Sun -- 02:15 AM PDT     Moonset
Sun -- 03:46 AM PDT     0.00 knots Slack
Sun -- 06:06 AM PDT     Sunrise
Sun -- 06:57 AM PDT     0.83 knots Max Flood
Sun -- 09:47 AM PDT     -0.00 knots Slack
Sun -- 12:27 PM PDT     -0.50 knots Max Ebb
Sun -- 03:32 PM PDT     0.00 knots Slack
Sun -- 04:27 PM PDT     Moonrise
Sun -- 06:33 PM PDT     0.70 knots Max Flood
Sun -- 08:29 PM PDT     Sunset
Sun -- 09:14 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-1.1-1-0.8-0.40.10.50.80.80.70.4-0.1-0.4-0.5-0.5-0.4-0.20.20.50.70.70.50.1-0.4-0.9

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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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (18,4,5,8)
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Ground Weather Radar Station Sacramento, 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.