Tuesday, May22, 2018 L-36.com


Marine Weather and Tides
Pinole, CA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 5:51AMSunset 8:20PM Tuesday May 22, 2018 12:31 PM PDT (19:31 UTC) Moonrise 12:29PMMoonset 1:15AM Illumination 55% Phase: First Quarter Moon; Moon at 8 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
PZZ530 San Pablo Bay Suisun Bay The West Delta And San Francisco Bay North Of The Bay Bridge- 815 Am Pdt Tue May 22 2018
.small craft advisory in effect from 3 pm pdt this afternoon through this evening...
Today..SW winds 5 to 15 kt...increasing to 15 to 25 kt in the afternoon.
Tonight..SW winds 15 to 25 kt...decreasing to 5 to 15 kt by midnight.
Wed..SW winds 10 to 20 kt.
Wed night..SW winds 10 to 20 kt.
Thu..SW winds 10 to 20 kt. Slight chance of showers after midnight.
Fri..SW winds 5 to 15 kt. Slight chance of showers.
Sat..W winds 10 kt.
PZZ500 815 Am Pdt Tue May 22 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Winds will continue to decrease through the day as high pressure over the eastern pacific weakens. Winds will turn southerly by Thursday morning as a weak low pressure system approaches from the west. This low will bring a chance of showers Thursday through Friday night. A long period southwest swell will persist with a shorter period northwest swell through the majority of the week.

7 Day Forecast for Marine Location Near Pinole, CA
   Hourly   EDIT   Help
location: 38.04, -122.34     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 221731
afdmtr
area forecast discussion
national weather service san francisco bay area
1031 am pdt Tue may 22 2018

Synopsis A deep marine layer in place this morning with low
clouds extending well inland will lead to another cool and breezy
afternoon. Inland temperatures remain below normal most of this
week. A late season front approaches late Thursday night into
Friday with a slight chance of showers for the north bay and
coastline. Shower chances should end by early Saturday with a
modest warming trend Saturday afternoon through memorial day.

Discussion As of 8:28 am pdt Tuesday... Satellite imagery
continues to show widespread low clouds courtesy of a deep marine
layer. Most airports are still showing ceilings around 1000 to
1500 feet. A few locations around the monterey peninsula saw some
drizzle overnight up to a few hundredths of an inch. Temperatures
are running within a few degrees of this time yesterday over the
north bay and sf bay areas due to persistent overnight and morning
clouds. Some inland clearing is expected late this morning while
many coastal areas could remain under cloudy skies throughout the
day. Extensive cloud cover and a deep marine layer will make for
another breezy afternoon and keep afternoon high temperatures
around 5 to 10 degrees below normal.

No updates to the forecast are needed at this time. For additional
details please see the previous discussion.

Prev discussion As of 2:51 am pdt Tuesday... Fog product shows
a deep marine push of low clouds this morning with most airports
reporting clouds bases between 1000 and 1500 feet. Onshore
gradients have relaxed since last evening but still a robust 2.5
mb from sfo to sac with gusts to around 30 mph through the golden
gate. Synoptic pattern still features an upper low near las vegas
which will keep onshore gradients strong all day today leading to
another afternoon of gusty onshore breezes and below normal temps
regionwide.

Some brief shortwave ridging on weds but expect a well defined
marine layer in place. This in concert with continued strong
onshore flow will keep temperatures below normal with inland
areas stuck in the lower 70s with lower 60s coast bays.

Will be tracking an incoming unseasonably strong upper low and
surface cold front approach on Thursday. 06z NAM brings a band of
showers onshore late Thursday night into Friday morning which is
in agreement with the 00z ecmwf. QPF totals are light, mainly a
few hundredths to around a tenth but up to a quarter inch possible
for the north bay coastal hills. Main impact at this time would
be for the Friday morning commute with some wet roads to start the
long holiday weekend. For now the forecast will show slight
chance of showers with the best chances north bay and coastal
hills.

The core of the upper low will slowly wobble around into early
Saturday morning keeping the shower threat in place but the main
impact felt will be unseasonably cool weather, especially inland.

The low should eject by Saturday afternoon leading to a modest
warming trend Saturday afternoon through memorial day Monday. Euro
model suggests we should see more widespread upper 70s inland by
Sunday with more widespread 80s for memorial day activities.

Aviation As of 10:31 am pdt Tuesday for 18z tafs. Widespread
stratus continues to bring MVFR ifr ceilings across the san
francisco bay area. Visible satellite shows the low clouds
beginning to mix-out in the north bay valleys as of the 18z taf
publication time; however, many of the major bay area airports
remain blanketed. Several terminals will likely stay ovc bkn
through the entire day, and for those that do clear, ceilings will
return again overnight.

Vicinity of ksfo... MVFR ceilings are expected to prevail through
the day as a consequence to the deep marine layer, strong onshore
gradient, and healthy stratus feed pushing through the san bruno
gap from the pacific. Winds will increase in the afternoon to 15
to 20 kt with higher gusts possible. Ceilings will drop again
after sunset, perhaps flirting with ifr levels.

Sfo bridge approach... Could see some sct bkn conditions just south
of the bridge, though overall expecting similar conditions to
that of the terminal.

Monterey bay terminals... MVFR conditions will likely prevail at
kmry during the day. There's a chance ksns could transition from
MVFR to vrf given sufficient mixing, though opted to take the
conservative approach in the taf. Will continue to monitor and
amend if necessary. MVFR ifr conditions expected overnight.

Marine As of 8:15 am pdt Tuesday... Winds will continue to
decrease through the day as high pressure over the eastern pacific
weakens. Winds will turn southerly by Thursday morning as a weak
low pressure system approaches from the west. This low will bring
a chance of showers Thursday through Friday night. A long period
southwest swell will persist with a shorter period northwest swell
through the majority of the week.

Mtr watches warnings advisories
Tday Sca... Pt arena to pigeon pt 10-60 nm until 12 pm
sca... Sf bay from 3 pm
public forecast: as rww
aviation: rowe
marine: rowe
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
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 4 mi44 min SW 13 G 17 58°F 1012 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 9 mi44 min S 13 G 15 55°F 1013.3 hPa
RCMC1 - 9414863 - Richmond, CA 9 mi44 min SSE 8 G 11 55°F 61°F1012.7 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 11 mi44 min W 7 G 9.9 61°F 64°F1012.1 hPa60°F
TIBC1 - Tiburon Pier, San Francisco Bay, CA 12 mi159 min SE 6 53°F 1013 hPa (+1.0)
OBXC1 16 mi44 min 55°F 52°F
PCOC1 - 9415144 - Port Chicago, CA 16 mi44 min S 13 G 18 61°F 64°F1011.9 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 16 mi44 min SW 6 G 9.9 56°F 1013.5 hPa
PXSC1 17 mi44 min 56°F 52°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 17 mi44 min W 7 G 11 55°F 1012.4 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 17 mi44 min SW 8 G 11
LNDC1 17 mi44 min SW 8 G 9.9 55°F 1013.5 hPa
FTPC1 - 9414290 - San Francisco, CA 17 mi44 min SW 11 G 14 55°F 56°F1013.5 hPa
AAMC1 - 9414750 - Alameda, CA 19 mi44 min SW 7 G 11 55°F 64°F1013.8 hPa
SFXC1 - San Francisco Bay Reserve, CA 20 mi107 min WNW 8.9 63°F 1012 hPa54°F
46237 - San Francisco Bar, CA (142) 23 mi62 min 54°F5 ft
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 24 mi50 min WNW 9.9 G 13 64°F 1011.4 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 33 mi32 min W 5.8 G 9.7 52°F 51°F1014.4 hPa (+0.6)52°F
PRYC1 - 9415020 - Point Reyes, CA 34 mi44 min WNW 11 G 17 52°F1012.9 hPa
RTYC1 - 9414523 - Redwood City, CA 37 mi44 min W 14 G 16 56°F 65°F1014.2 hPa

Wind History for Richmond, CA
(wind in knots)    EDIT      (on/off)   Help
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
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
Last
24hr
S9
G13
SE9
G14
S13
G16
S14
G17
S10
G14
S6
G11
S7
SW3
SW2
G5
S5
G9
S5
G9
S7
G12
SW6
G10
S5
G10
SW6
G11
S5
G11
S7
G12
S6
G12
S7
G11
S4
G10
S6
G9
S9
S5
G11
SE10
1 day
ago
SE3
S5
NW8
S5
NW13
G17
NW7
G11
NW11
G14
NW9
G13
SW4
G9
SE3
SE3
S5
G8
S6
G10
SE5
G8
SE6
G10
SE3
G6
S7
G11
S8
S5
S5
S7
S9
S8
G12
S8
G11
2 days
ago
S7
G10
S7
G10
S8
G12
SW5
G10
SW4
G8
SW4
G8
NW9
G14
SW3
SW3
G6
NW4
SW5
G9
NW6
G9
W4
NW9
G17
W12
G18
S5
G9
NW10
G14
NW8
G14
NW10
G13
NW4
NW5
G9
NW3
S5
SE5

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Napa, Napa County Airport, CA12 mi38 minSSW 1010.00 miMostly Cloudy60°F51°F72%1011.6 hPa
Novato / Gnoss Field, CA14 mi37 minVar 610.00 miMostly Cloudy64°F53°F68%1012.2 hPa
Concord, Buchanan Field, CA16 mi39 minSSW 1610.00 miA Few Clouds63°F51°F65%1011.1 hPa
Petaluma Municipal Airport, CA21 mi37 minN 09.00 miMostly Cloudy63°F53°F73%1012.5 hPa
Oakland, Metro Oakland International Airport, CA24 mi39 minWSW 115.00 miFog/Mist56°F52°F87%1013.8 hPa

Wind History from APC (wind in knots)
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
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
Last 24hrS12S15S18S18S15S15S14S13S13
G18
S12S14S13S11SW9S11W5W4S11S9S12S12
G17
S12SW9SW10
1 day agoSW12S16
G21
SW13SW13SW13
G18
SW14S11SW14
G18
SW10SW9SW7SW9W5NW3CalmCalmCalmCalmCalmCalmSW5SW10SW10S10
2 days agoSW14
G19
SW14SW14W15W15W14SW14
G18
SW12SW10SW13SW10W11SW9W10W11W9W12W8W9W8W7W4S10S10

Tide / Current Tables for Pinole Point, San Pablo Bay, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Pinole Point
Click for Map
Tue -- 01:44 AM PDT     2.15 feet Low Tide
Tue -- 02:14 AM PDT     Moonset
Tue -- 05:53 AM PDT     Sunrise
Tue -- 07:04 AM PDT     4.98 feet High Tide
Tue -- 01:28 PM PDT     Moonrise
Tue -- 01:51 PM PDT     -0.19 feet Low Tide
Tue -- 08:19 PM PDT     Sunset
Tue -- 08:59 PM PDT     5.57 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.82.32.22.53.244.754.84.131.80.7-0-0.20.212.13.34.45.35.65.34.5

Tide / Current Tables for Wilson Point 3.9 mi NNW, San Pablo Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Wilson Point 3.9 mi NNW
Click for Map
Tue -- 01:58 AM PDT     0.00 knots Slack
Tue -- 02:14 AM PDT     Moonset
Tue -- 04:01 AM PDT     0.47 knots Max Flood
Tue -- 05:53 AM PDT     Sunrise
Tue -- 07:53 AM PDT     -0.00 knots Slack
Tue -- 11:36 AM PDT     -0.52 knots Max Ebb
Tue -- 01:28 PM PDT     Moonrise
Tue -- 02:39 PM PDT     0.01 knots Slack
Tue -- 05:45 PM PDT     0.70 knots Max Flood
Tue -- 08:19 PM PDT     Sunset
Tue -- 10:00 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.3-0.200.40.50.40.30.2-0-0.2-0.4-0.5-0.5-0.4-0.20.10.50.70.70.60.50.3-0-0.2

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Francisco/Monterey Bay Area, CA (15,3,4,5)
      (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.