Monday, May29, 2017 L-36.com


Marine Weather and Tides
Port Costa, CA

Version 3.4
What's New / NOTES
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 5:46AMSunset 8:25PM Monday May 29, 2017 11:54 AM PDT (18:54 UTC) Moonrise 9:01AMMoonset 11:21PM Illumination 18% Phase: Waxing Crescent; Moon at 4 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- 829 Am Pdt Mon May 29 2017
.small craft advisory in effect from noon pdt today through this evening...
Today..SW winds 10 to 20 kt...increasing to 15 to 25 kt in the afternoon. Patchy fog late in the morning.
Tonight..SW winds 15 to 25 kt...decreasing to 5 to 15 kt overnight. Patchy fog after midnight. Patchy drizzle after midnight.
Tue..SW winds 15 to 25 kt. Patchy fog in the morning. Patchy drizzle in the morning.
Tue night..W winds 15 to 25 kt. Slight chance of showers after midnight.
Wed..W winds 15 to 25 kt. Patchy fog after midnight.
Thu..SW winds 5 to 15 kt. Patchy fog.
Fri..SW winds 10 kt. Patchy fog.
PZZ500 829 Am Pdt Mon May 29 2017
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Gusty northerly winds will continue over the coastal waters and eventually over the bays today as the surface pressure gradient tightens. Steep winds waves and fresh swell will cause rough and hazardous seas. Winds will decrease mid week as a weak frontal system moves through the coastal waters.

7 Day Forecast for Marine Location Near Port Costa, CA
   Hourly   EDIT   Help
location: 38.03, -122.15     debug


Area Discussion for - Sacramento, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksto 291743
afdsto
area forecast discussion
national weather service sacramento ca
1043 am pdt Mon may 29 2017

Synopsis
Temperatures a little above normal for today followed by a
cooldown Tuesday. Isolated afternoon showers or thunderstorms
possible over the mountains into mid- week.

Discussion (today through Thursday)
a weak shortwave is along the coast and is not projected to move
inland until Tuesday. This will help to keep moderate to strong
delta breeze going throughout the day today and through Tuesday.

The models are indicating the best instability over the next
several days occurring this afternoon over the sierra nevada along
the crest.

The trough axis moves inland Tuesday and we may continue to see
some afternoon thunderstorms along the crest from around alpine
county southward. A broader trough with more moisture will move
through Wednesday and may even bring a mix of light showers and
sprinkles to the valley. For now have left out any mention of
thunder with the models not indicating great enough instability
but we will have to re-evaluate that as we get closer to
Wednesday. Thursday will be a dry day for the western slopes with
zonal flow over the region and the better chances for anything
would be east of the crest.

Little change in temperatures is expected today other than in the
delta and sacramento region which will have some cooling due to
the stronger delta breeze today and low clouds lingering in the
bay area most of the day. Cooling all areas will occur both for
Tuesday and Wednesday with the coolest day of the week likely to
occur on Wednesday.

.Extended discussion (Friday through Monday)
dry weather Friday as zonal flow continues. A weak shortwave
returns along the coast for Saturday and Sunday and may help to
bring back some thunderstorms along the crest. For now conditions
are forecast to be dry but that may change. Temperatures will warm
a little above normal for this time of year but remain pleasant.

Aviation
Vfr conditions expected through the next 24 hours for TAF sites.

Winds generally 10 kts or less, increasing to up to 15 kt with
gusts up to 20 kt after 00z in the southern sacramento valley and
northern san joaquin valley. Gusts to around 30 knots in vicinity
of the delta. Isolated tsra possible in the higher mountains,
18z- 06z.

Sto watches warnings advisories
None.



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
MZXC1 - 9415102 - Martinez-Amorco CA 1 mi54 min WNW 14 G 17 59°F 64°F1014.9 hPa (-0.4)55°F
UPBC1 2 mi54 min WNW 12 G 16
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 6 mi54 min WSW 8 G 11 57°F 1015 hPa (+0.0)
PCOC1 - 9415144 - Port Chicago, CA 6 mi54 min W 18 G 21 59°F 64°F1014.4 hPa (-0.4)
SFXC1 - San Francisco Bay Reserve, CA 13 mi69 min W 12 62°F 1014 hPa55°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 14 mi54 min WNW 14 G 17 64°F 1013.5 hPa (+0.0)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 14 mi54 min SSE 7 G 9.9 57°F 1015.9 hPa (+0.0)
RCMC1 - 9414863 - Richmond, CA 16 mi54 min SSE 5.1 G 8 57°F 61°F1015.3 hPa (+0.0)
LNDC1 18 mi54 min SSW 6 G 8.9 54°F 1015.9 hPa (-0.3)
TIBC1 - Tiburon Pier, San Francisco Bay, CA 18 mi62 min SE 5.1 55°F 1016 hPa (+0.0)
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi54 min SW 5.1 G 7 56°F 1015.8 hPa (-0.3)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 18 mi54 min SSW 7 G 9.9
OBXC1 19 mi54 min 55°F 52°F
PXSC1 20 mi54 min 56°F 52°F
AAMC1 - 9414750 - Alameda, CA 20 mi54 min SW 8.9 G 11 54°F 63°F1016.4 hPa (-0.3)
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi54 min W 5.1 G 7 56°F 1014.8 hPa
FTPC1 - 9414290 - San Francisco, CA 23 mi54 min WNW 5.1 G 13 55°F 59°F1016 hPa (+0.0)
46237 - San Francisco Bar, CA (142) 31 mi54 min 56°F5 ft
RTYC1 - 9414523 - Redwood City, CA 36 mi54 min W 12 G 14 55°F 66°F1015.8 hPa (-0.3)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi64 min NW 18 G 19 52°F 52°F7 ft1016.3 hPa (+0.0)
PRYC1 - 9415020 - Point Reyes, CA 44 mi54 min WNW 15 G 19 54°F 50°F1015.7 hPa (-0.4)

Wind History for Martinez-Amorco Pier, CA
(wind in knots)    EDIT      (on/off)   Help
12
PM
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
Last
24hr
NW14
NW15
NW13
W12
W14
NW17
W13
G16
W9
W12
G15
W8
G11
W9
W11
W9
G13
W9
G12
W7
W9
G13
W12
G15
SW7
G14
W8
W7
G11
W9
G12
W10
G13
W13
G16
NW14
G17
1 day
ago
W12
G15
W14
G17
W12
G15
W14
W14
W11
G16
SW13
G16
NW17
W15
G20
W14
W13
G16
W10
G13
W10
W8
G14
W11
G15
W9
G12
W7
W7
G11
W9
SW6
G10
SW8
W10
NW11
NW14
2 days
ago
W11
W11
W11
G15
W15
W14
G17
SW13
G16
W14
W11
G14
SW13
G17
W6
G9
SE2
G6
NW8
G13
W13
W8
G11
W8
W10
W7
G11
SW10
G14
SW8
G11
SW7
G10
SW8
W11
W10
W14
G17

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi61 minS 1610.00 miA Few Clouds63°F52°F68%1013.6 hPa
Napa, Napa County Airport, CA14 mi60 minWSW 810.00 miOvercast62°F52°F70%1014.2 hPa
Fairfield / Travis Air Force Base, CA21 mi1.9 hrsWSW 19 G 2410.00 miFair and Breezy62°F51°F69%1014.2 hPa
Novato / Gnoss Field, CA23 mi59 minWSW 1410.00 miA Few Clouds61°F51°F72%1015.2 hPa
Oakland, Metro Oakland International Airport, CA23 mi61 minW 810.00 miOvercast57°F51°F81%1016.4 hPa

Wind History from CCR (wind in knots)
12
PM
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
Last 24hrS10S9S11SW7
G15
NW8W9W10SW11S11S14S14S14
G19
S12S13S14SW13S12S12
G20
S10S11S10S12
G19
SW15S16
1 day agoS7W8W10W7W11W10W13W12W10W9W7SW6SW6S8S7S10S10S7SW4S8S10S9S8S8
2 days agoSW7W11W10W10W14
G19
W12W11SW10W8S5SW6SW8SW8SW5SW5S6SW4SW8SW5W6SW9SW9SW5S8

Tide / Current Tables for Suisun Point, Carquinez Strait, California
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Suisun Point
Click for Map
Mon -- 04:12 AM PDT     5.57 feet High Tide
Mon -- 05:48 AM PDT     Sunrise
Mon -- 10:01 AM PDT     Moonrise
Mon -- 11:58 AM PDT     -0.88 feet Low Tide
Mon -- 06:39 PM PDT     4.51 feet High Tide
Mon -- 08:23 PM PDT     Sunset
Mon -- 11:47 PM PDT     1.80 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.23.24.35.25.65.44.73.62.31.10.1-0.6-0.9-0.50.41.62.83.84.44.543.22.51.9

Tide / Current Tables for Carquinez Strait, California Current
   EDIT      (on/off)   Help   One Week of Data
Carquinez Strait
Click for Map
Mon -- 12:16 AM PDT     0.00 knots Slack
Mon -- 03:00 AM PDT     2.32 knots Max Flood
Mon -- 05:48 AM PDT     Sunrise
Mon -- 06:00 AM PDT     -0.01 knots Slack
Mon -- 09:45 AM PDT     -3.24 knots Max Ebb
Mon -- 10:01 AM PDT     Moonrise
Mon -- 01:53 PM PDT     0.00 knots Slack
Mon -- 05:18 PM PDT     2.08 knots Max Flood
Mon -- 08:24 PM PDT     Sunset
Mon -- 08:34 PM PDT     -0.00 knots Slack
Mon -- 11:09 PM PDT     -1.34 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.30.91.92.321.10-1.3-2.4-3.1-3.2-2.9-2.3-1.20.11.21.82.121.50.6-0.4-1.1-1.3

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 Sacramento, CA (14,3,4,5)
      (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.