Sunday, May20, 2018 L-36.com


Marine Weather and Tides
Sacramento, CA

Version 3.4
What's New / NOTES
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.
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.

Sunrise 5:47AMSunset 8:17PM Sunday May 20, 2018 10:43 AM PDT (17:43 UTC) Moonrise 10:10AMMoonset 12:00AM Illumination 33% Phase: Waxing Crescent; Moon at 6 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 The San Francisco Bay North Of The Bay Bridge- 830 Am Pdt Sun May 20 2018
.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 this afternoon. Gusts up to 30 kt.
Tonight..SW winds 10 to 20 kt with gusts up to 25 kt.
Mon..SW winds 10 to 20 kt with gusts up to 30 kt.
Mon night..SW winds 10 to 20 kt with gusts up to 30 kt.
Tue..SW winds 10 to 15 kt with gusts up to 25 kt.
Tue night..SW winds 5 to 15 kt.
Wed..SW winds 5 to 10 kt.
Thu..SW winds 5 to 15 kt.
PZZ500 830 Am Pdt Sun May 20 2018
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... A strong north to south pressure gradient along the california coast will maintain moderate to strong northwesterly winds over the coastal waters through Monday. As a result, steep wind waves will produce hazardous conditions for small crafts. A long period southerly swell will increase and mix with northwesterly swell by Monday morning, gradually increasing through much of the week.

7 Day Forecast for Marine Location Near Sacramento, CA
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location: 38.58, -121.51     debug


Area Discussion for - Sacramento, CA
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Fxus66 ksto 200947
afdsto
area forecast discussion
national weather service sacramento ca
247 am pdt Sun may 20 2018

Synopsis
Afternoon and evening thunderstorms possible over higher terrain
much of this week. Seasonal temperatures continue across the
region.

Discussion
A shortwave trough has been passing through northern california
yesterday evening and this morning. After diurnally-driven
convective activity had tapered off, isolated thunderstorms
developed late yesterday evening in the vicinity of redding
shasta lake. This nocturnal activity has since pushed
northeastward. Elsewhere, a moderate to strong onshore gradient
along with elevated marine layer has resulted in a healthy stratus
push inland. Expect a bit of stratus to push into the southern
sacramento and northern san joaquin valley toward sunrise.

The upper trough will continue to deepen today, forming a closed
low over central southern california by Monday and shifting
eastward into the great basin on Tuesday. While we do expect some
convective development again this afternoon, it will likely favor
the shasta trinity mendocino ranges, along with southern
cascades. Showers and thunderstorms then become more widespread
along the sierra again Monday through Wednesday.

Temperatures will fluctuate over the next several days but will
generally be within a few degrees of normal. Locally warmer
weather is projected along the northern valley Monday and Tuesday,
as north winds develop and bring adiabatic compressional heating
to those locations.

Dang
.Extended discussion (Thursday through Sunday)
gfs ECMWF in better agreement lifting upper low over the eastern
pacific toward the region late in the week. This will keep a
daily threat of showers and afternoon thunderstorms over the
foothills and mountains. Ec tracks low inland across norcal late
in the weekend while GFS now lifts the wave across the pacnw.

This leads to uncertainty as to how much precip is possible over
the weekend. For now forecast keeps precip chances confined to the
foothills and mountains. Temperatures expected to remain close to
average.

Aviation
Upr trof ovr norcal with wly flow alf. MnlyVFR conds nxt 24 hrs
exc wdly sct MVFR ifr conds poss omtns in shwrs tstms and lcl
MVFR ifr CIGS in st poss vcnty of delta into SRN sac vly thru 18z.

Lcl swly sfc wnd gsts to 30 kts cont thru delta til with LCL gusts
15-20 kts SRN sac vly and NRN sj vly 20z-04z mon.

Sto watches warnings advisories
None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 38 mi58 min WNW 11 58°F 1014 hPa50°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 42 mi43 min W 12 G 19 58°F 1014 hPa (+0.4)
PCOC1 - 9415144 - Port Chicago, CA 46 mi43 min SSW 6 G 14 58°F 63°F1014.3 hPa (+0.5)
RCMC1 - 9414863 - Richmond, CA 66 mi43 min NNW 2.9 G 5.1 56°F 60°F1014.7 hPa (+0.6)

Wind History for Port Chicago, CA
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G22
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W11
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SW16
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G14

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sacramento Executive Airport, CA4 mi50 minSSW 910.00 miPartly Cloudy59°F50°F72%1014 hPa
Sacramento, McClellan Airfield Airport, CA8 mi53 minSSE 10 G 1410.00 miPartly Cloudy59°F48°F68%1014.6 hPa
Sacramento International Airport, CA10 mi50 minS 710.00 miMostly Cloudy62°F50°F65%1013.6 hPa
Sacramento Mather Airport, CA11 mi58 minS 910.00 miOvercast57°F48°F72%1014.2 hPa
University Airport, CA15 mi63 minESE 3 miFair59°F50°F72%1014.2 hPa
Lincoln Regional Karl Harder Field, CA24 mi48 minSSE 910.00 miPartly Cloudy59°F48°F68%1013.9 hPa

Wind History from SAC (wind in knots)
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G16
SW8SW7SW8
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G18
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1 day agoSW8S7S7S345SW13
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S7S8SE5S6S5S5--S6S6SE6S5SW7SW9
G14
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2 days ago3445SW7SW7S8S12
G21
SW12
G19
SW14
G21
SW12
G19
SW10
G18
SW8S5S5SE4SE5SE4S3S5S6S9SW96

Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Sun -- 12:34 AM PDT     2.37 feet High Tide
Sun -- 12:45 AM PDT     Moonset
Sun -- 05:50 AM PDT     Sunrise
Sun -- 07:00 AM PDT     0.72 feet Low Tide
Sun -- 10:52 AM PDT     2.88 feet High Tide
Sun -- 11:10 AM PDT     Moonrise
Sun -- 08:14 PM PDT     -0.24 feet Low Tide
Sun -- 08:15 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.42.21.81.410.80.711.82.62.92.82.52.11.510.50.1-0.1-0.2-0.10.51.2

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Sun -- 12:45 AM PDT     Moonset
Sun -- 05:30 AM PDT     0.72 feet Low Tide
Sun -- 05:50 AM PDT     Sunrise
Sun -- 09:43 AM PDT     2.88 feet High Tide
Sun -- 11:10 AM PDT     Moonrise
Sun -- 06:44 PM PDT     -0.24 feet Low Tide
Sun -- 08:15 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.32.11.71.30.90.70.81.32.12.72.92.72.41.91.40.80.40-0.2-0.20.10.71.42

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 Sacramento, CA (13,3,4,5)
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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.