Thursday, May24, 2018 L-36.com


Marine Weather and Tides
Benicia, 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 5:49AMSunset 8:21PM Thursday May 24, 2018 6:40 PM PDT (01:40 UTC) Moonrise 2:36PMMoonset 2:23AM Illumination 77% 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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PZZ530 San Pablo Bay Suisun Bay The West Delta And San Francisco Bay North Of The Bay Bridge- 224 Pm Pdt Thu May 24 2018
.small craft advisory in effect until 10 pm pdt this evening...
Tonight..W to sw winds 15 to 25 kt...decreasing to 5 to 15 kt overnight. Slight chance of showers after midnight.
Fri..SW winds 5 to 15 kt. Chance of showers.
Fri night..SW winds 5 to 15 kt.
Sat..SW winds 5 to 15 kt.
Sat night..W winds 10 to 20 kt.
Sun..SW winds 5 to 15 kt.
Memorial day..SW winds 10 kt.
Tue..SW winds 10 kt.
PZZ500 224 Pm Pdt Thu May 24 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure near the coast will keep light to moderate winds over the coastal waters. Gusty winds will be possible this evening north of the bay bridge inside the san francisco bay. Northwest winds increase Friday. Gusty winds will impact the coastal waters this holiday weekend. Mixed seas with a longer period southwest swell and a smaller northwest swell.

7 Day Forecast for Marine Location Near Benicia, CA
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location: 38.04, -122.13     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 242125
afdsto
area forecast discussion
national weather service sacramento ca
225 pm pdt Thu may 24 2018

Synopsis
Afternoon and evening thunderstorms possible mainly over higher
terrain this week. These are expected to extend across the valley
Friday. Slightly cooler than normal temperatures continue across
most of the region through Saturday, warming to well above normal
early next week.

Discussion
Main forecast concerns for the short term period are continued
chances for mountain thunderstorms, rain and isolated thunder for
the valley Friday, snow accumulations for high elevations of the
sierra south of highway 50 Friday through Saturday.

Latest water vapor and model analysis shows the cut off upper
level low has now moved well outside the region of weather
influence as another disturbance approaches northern california
from the west. Upper flow has returned to the northwest, which
will continue to allow for thunderstorm development, but storms
should move to the east of the crest this afternoon and tonight
instead of to the west. Brief heavy downpours and some small hail
can be expected in the stronger storms.

Friday will be the coolest day of the week as the upper low passes
directly overhead. Temperatures across the area will range between
10 and 20 degrees below normal with chances for valley rain and
isolated thunder, mainly in the morning. Latest model runs have
the majority of the instability over the mountains Friday, so
valley thunder is expected to be minimal. However, scattered rain
showers in the morning for the valley commute is possible.

With the cold system moving overhead, chances for snow showers are
possible for the high sierra (8000 feet and above) for locations
south of highway 50. Model forecasts have swayed a bit on the
actual accumulation amounts, but wpc 50th percentiles have
somewhere between 1 and 3 inches of snow expected by Saturday. Due
to memorial day weekend outdoor recreation, went with a winter
advisory for locations near the area.

Heading into the weekend, and upper level ridge builds and
temperatures will begin to warm back to and slightly above normal.

Temperatures across northern california are expected to increase
by 15 to 30 degrees from Friday to Sunday.

.Extended discussion (Monday through Thursday)
we will see a ridge to start the extended period and that will
bring a big warm up for norcal. We will see some of the warmest
highs so far this year and they will run 30-40 degrees warmer than
Friday's expected highs. If you have outdoor plans for the
holiday weekend you will want to be prepared for the heat. With
the ridge overhead we will see dry conditions. As we head into the
mid part of the week we will see a trough push the ridge
eastward. This will cool are daytime highs back to near normal.

This trough will also bring back the chance for mountain showers
and thunderstorms mainly during the afternoon and evenings.

Looking at soundings and CAPE values it does look rather weak and
that should keep the activity isolated.

-cjm

Aviation
Vfr conditions are expected at the TAF sites through 9z. We will
see increasing clouds this evening with overcast skies between
3500 and 5000 feet developing in the late overnight. Light
scattered showers are expected at the TAF sites after 9z and will
taper off around the southern terminals by 18z. Showers will
linger up north into the evening. MVFR ifr will be possible in the
vicinity of any showers. Overall we will see 5-11 knots winds but
10-18 knots during the evening.

-cjm

Sto watches warnings advisories
Winter weather advisory from 5 am Friday to 5 am pdt Saturday
for west slope northern sierra nevada.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MZXC1 - 9415102 - Martinez-Amorco CA 0 mi52 min 64°F
PCOC1 - 9415144 - Port Chicago, CA 5 mi58 min WSW 16 G 22 59°F 64°F1016.3 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 7 mi52 min WSW 15 G 19 58°F 1016.6 hPa
SFXC1 - San Francisco Bay Reserve, CA 12 mi115 min W 16 62°F 1016 hPa52°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 13 mi64 min WNW 11 G 21 61°F 1015.7 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 16 mi52 min SW 11 G 14 58°F 1017.8 hPa
RCMC1 - 9414863 - Richmond, CA 17 mi58 min SW 8 G 12 57°F 60°F1017.4 hPa
LNDC1 19 mi52 min W 8 G 13 57°F 1017.8 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 19 mi52 min W 8 G 12 58°F 1017.8 hPa
TIBC1 - Tiburon Pier, San Francisco Bay, CA 20 mi59 min NNW 7 56°F 1018 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 20 mi58 min WSW 14 G 18
OBXC1 20 mi52 min 57°F 50°F
AAMC1 - 9414750 - Alameda, CA 21 mi58 min W 8 G 12 57°F 63°F1018 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 22 mi58 min WSW 7 G 13 57°F 1016.8 hPa
PXSC1 22 mi58 min 59°F 50°F
FTPC1 - 9414290 - San Francisco, CA 24 mi58 min SW 6 G 13 56°F 58°F1018.1 hPa
46237 - San Francisco Bar, CA (142) 32 mi70 min 55°F5 ft
RTYC1 - 9414523 - Redwood City, CA 37 mi52 min 64°F
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 42 mi50 min SW 5.8 G 7.8 55°F 54°F5 ft1018.6 hPa55°F
PRYC1 - 9415020 - Point Reyes, CA 45 mi58 min W 4.1 G 8.9 53°F1017.6 hPa

Wind History for Martinez-Amorco Pier, CA
(wind in knots)    EDIT      (on/off)   Help
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Last
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SW13
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SW9
G13
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G14
SW10
G13
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W8
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SW10
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G18
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G16
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G16
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2 days
ago
W8
G12
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G13
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G14
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SW3
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G7
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G11
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G16
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G16
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA6 mi47 minWSW 1510.00 miMostly Cloudy61°F48°F63%1015.5 hPa
Napa, Napa County Airport, CA14 mi46 minW 1410.00 miMostly Cloudy61°F48°F63%1015.8 hPa
Fairfield / Travis Air Force Base, CA20 mi42 minWSW 24 G 3310.00 miPartly Cloudy and Windy61°F48°F64%1015.2 hPa
Novato / Gnoss Field, CA24 mi65 minSW 10 G 1610.00 miOvercast59°F48°F68%1017.3 hPa
Oakland, Metro Oakland International Airport, CA24 mi47 minW 1410.00 miMostly Cloudy60°F48°F67%1017.7 hPa

Wind History from CCR (wind in knots)
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Last 24hrSW12SW14SW7W6SW11SW11W10W7W8SW10SW12SW8SW11W12W9SW11SW10SW8
G17
W12SW9W15W16W17
G24
SW15
1 day agoW15W11S14S13SW11SW9SW11SW10SW10SW12SW10SW12SW9SW9SW9S11SW10W12SW12W15W15W15W14W13
2 days agoS18S19
G26
S16
G24
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G29
S20
G26
S18
G24
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S15S11S12
G20
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S17S15S16S15S17
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G24
S16SW14

Tide / Current Tables for Suisun Point, Carquinez Strait, California
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Suisun Point
Click for Map
Thu -- 03:22 AM PDT     Moonset
Thu -- 04:54 AM PDT     0.60 feet Low Tide
Thu -- 05:51 AM PDT     Sunrise
Thu -- 10:41 AM PDT     3.88 feet High Tide
Thu -- 03:36 PM PDT     Moonrise
Thu -- 04:54 PM PDT     0.08 feet Low Tide
Thu -- 08:19 PM PDT     Sunset
Thu -- 11:25 PM PDT     5.19 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.43.52.51.50.80.60.91.72.53.33.83.93.42.61.70.90.30.10.41.32.43.64.65.1

Tide / Current Tables for Roe Island S, Suisun Bay, California Current
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Roe Island S
Click for Map
Thu -- 01:03 AM PDT     -0.00 knots Slack
Thu -- 03:22 AM PDT     Moonset
Thu -- 04:14 AM PDT     -1.98 knots Max Ebb
Thu -- 05:50 AM PDT     Sunrise
Thu -- 07:32 AM PDT     0.00 knots Slack
Thu -- 10:08 AM PDT     0.70 knots Max Flood
Thu -- 12:39 PM PDT     -0.00 knots Slack
Thu -- 03:36 PM PDT     Moonrise
Thu -- 04:02 PM PDT     -1.93 knots Max Ebb
Thu -- 07:25 PM PDT     0.00 knots Slack
Thu -- 08:19 PM PDT     Sunset
Thu -- 10:41 PM PDT     1.01 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50-0.9-1.6-2-1.9-1.3-0.50.20.60.70.60.3-0.3-1.2-1.7-1.9-1.8-1.3-0.40.30.711

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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Wind Forecast for Sacramento, CA (21,6,7,8)
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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.