Sunday, March24, 2019 L-36.com


Marine Weather and Tides
Pacheco, CA

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:03AMSunset 7:24PM Sunday March 24, 2019 2:10 AM PDT (09:10 UTC) Moonrise 10:48PMMoonset 8:39AM Illumination 88% Phase: Waning Gibbous; Moon at 18 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- 905 Pm Pdt Sat Mar 23 2019
Tonight..W winds 5 to 15 kt with gusts up to 25 kt... Becoming nw after midnight.
Sun..E winds 5 to 15 kt.
Sun night..S winds 10 to 20 kt with gusts up to 30 kt. Rain likely.
Mon..SW winds 20 to 30 kt with gusts up to 40 kt. Rain likely.
Mon night..E winds 5 to 10 kt. A chance of showers.
Tue..S winds 5 to 10 kt. A chance of showers.
Tue night..S winds around 10 kt. Rain.
Wed..SW winds 5 to 15 kt. Rain.
Thu..W winds 5 to 10 kt. A chance of showers.
PZZ500 905 Pm Pdt Sat Mar 23 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... High pressure over the offshore waters will move south and east reaching the central coast on Sunday. Winds will shift to southerly on Sunday and increase ahead of a low pressure trough approaching from the west, light to moderate rain will accompany the trough Sunday evening through Monday evening. Northwest swell subsides on Sunday then increases Sunday night into Monday followed by another lull in swell prior to an increase in northwest to west swell Wednesday next week. Expect wet and chilly weather early to mid next week then drying by late week.


7 Day Forecast for Marine Location Near Pacheco, CA
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location: 37.98, -122.07     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
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Fxus66 kmtr 240534
afdmtr
area forecast discussion
national weather service san francisco bay area
1034 pm pdt Sat mar 23 2019

Synopsis Dry and mild weather will continue through Sunday
evening. Periods of rain are expected from late Sunday night
through at least Thursday of next week as a series of storm
systems impact northern and central california. Dry weather may
return late in the week and into next weekend.

Discussion As of 9:05 pm pdt Saturday... Isolated afternoon
showers ended by sunset and current satellite shows mostly clear
skies across our region. Winds have become light. Clear skies and
light winds overnight will mean chilly temperatures by sunrise
Sunday. Early morning lows on Sunday are forecast to range from
the upper 30s to mid 40s in most areas, with mid 30s likely in the
colder inland valleys.

After a cool start on Sunday, afternoon temperatures are expected
to climb into the 60s, except upper 50s close to the ocean. Skies
will start off mostly sunny tomorrow, but high clouds will likely
increase through the day as the next pacific storm system draws
closer to the west coast. That system can currently be seen on ir
satellite imagery out along 135w. The models have trended slightly
slower with this system and the leading edge of the light warm
advection precipitation is not expected to begin spreading across
the northern portion of our area until about midnight Sunday
night. Rain rates will then likely begin to increase in the north
bay in the pre-dawn hours of Monday as the main frontal boundary
nears the coast. The frontal boundary is then forecast to stall
across the north bay through about midday Monday (or until late
afternoon per the 00z nam) before finally pushing south and east
across most of the remainder of our area from Monday afternoon
through Monday night. The boundary is forecast to weaken
considerably as it pushes south of the golden gate. The weak
boundary will then stall over the far southern portion of our area
late Monday night into Tuesday and the models suggest slight
enhancement on Tuesday south of monterey bay as a weak wave
develops along the front.

Rainfall totals with this first system from late Sunday night
through Tuesday are currently forecast to range from 0.50-1.50"
in the north bay and from 0.25-0.75" for the rest of our area,
except less than a quarter inch for far southern inland areas. The
12z local WRF is somewhat more bullish on precipitation potential
(as usual) and forecasts as much as 2.5 inches of rain in
northwest sonoma county through late Tuesday, with the bulk of
that rain expected to fall late Sunday night and Monday morning.

The 00z nam, which stalls the front longer in the north bay, also
predicts up to 2.5 inches of rain in northwest sonoma county
with this first system. The upshot is that QPF for the north bay
may need to be increased in the late Sunday night Monday time
frame.

The next system is forecast so spread widespread rainfall across
our area on Tuesday night, with numerous showers to follow through
Wednesday and Wednesday evening. Showers are then expected to
gradually taper off late Wednesday night and Thursday as the upper
trough finally moves inland. Precipitation totals with the second
system from Tuesday night through Thursday are expected to be
similar to the first system earlier in the week, except somewhat
more evenly distributed from north to south.

In the longer range, the 12z ECMWF develops a shortwave ridge
along the west coast late in the week and forecasts dry weather
across most of our region from Friday through next weekend. The
deterministic GFS has recently been developing a high amplitude
pattern near the west coast by late next week with cold, but
mostly dry, systems forecast to drop in from the north. It should
be noted that the GFS ensemble mean, and several GFS ensemble
members, are more closely aligned with the ECMWF solution.

Aviation As of 10:34 pm pdt Saturday...VFR except a few patches
of valley fog are possible early Sunday morning. Rain arrives late
Sunday night into Monday.

Vicinity of ksfo...VFR, westerly wind near 10 knots becoming light
ne late tonight and Sunday morning.VFR extends into Sunday evening
with gradually increasing mid and high clouds, rain arrives late
Sunday night into Monday. Onshore wind returns by mid afternoon
Sunday becoming light SE Sunday evening.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals...VFR, wind gradually becoming light e-se
except SE up to 10 knots in the salinas valley Sunday morning and
early afternoon. Onshore winds returning in the afternoon Sunday.

Rain last to arrive here Monday extending into Monday evening.

Marine As of 10:27 pm pdt Saturday... High pressure over the
offshore waters will move south and east reaching the central
coast on Sunday. Winds will shift to southerly on Sunday and
increase ahead of a low pressure trough approaching from the west,
light to moderate rain will accompany the trough Sunday evening
through Monday evening. Northwest swell subsides on Sunday then
increases Sunday night into Monday followed by another lull in
swell prior to an increase in northwest to west swell Wednesday
next week. Expect wet and chilly weather early to mid next week
then drying by late week.

Mtr watches warnings advisories
Tngt Sca... Pt arena to pt reyes 0-10 nm
sca... Pt reyes to pigeon pt 0-10 nm
sca... Pigeon pt to pt pinos 0-10 nm
sca... Pt pinos to pt piedras blancas 0-10 nm
sca... Pt arena to pigeon pt 10-60 nm
sca... Pigeon pt to pt piedras blancas 10-60 nm
sca... Rough bar advisory for sf bar
sca... Mry bay until 3 am
public forecast: dykema
aviation marine: canepa
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Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
UPBC1 5 mi53 min SSW 4.1 G 6
MZXC1 - 9415102 - Martinez-Amorco CA 5 mi53 min S 5.1 G 6 57°F1023.6 hPa
PCOC1 - 9415144 - Port Chicago, CA 6 mi53 min S 6 G 8 57°F1023.6 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 11 mi53 min W 4.1 G 5.1 52°F 1023.2 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 12 mi53 min SSW 4.1 G 5.1 51°F 1023.3 hPa
SFXC1 - San Francisco Bay Reserve, CA 15 mi86 min Calm 47°F 1023 hPa44°F
PPXC1 - 9414847 - Richmond (Point Potrero), CA 16 mi53 min ESE 1.9 G 1.9 53°F 1023.9 hPa
LNDC1 17 mi53 min SE 4.1 G 5.1 51°F 1023.6 hPa
OKXC1 - 9414776 - Oakland (Berth 34), CA 18 mi53 min SE 2.9 G 4.1 50°F 1023.7 hPa
RCMC1 - 9414863 - Richmond, CA 18 mi53 min 56°F
AAMC1 - 9414750 - Alameda, CA 19 mi59 min E 2.9 G 4.1 51°F 59°F1024 hPa
OBXC1 19 mi53 min 51°F 45°F
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 19 mi53 min SE 4.1 G 5.1
TIBC1 - Tiburon Pier, San Francisco Bay, CA 21 mi60 min W 2.9 48°F 1024 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 21 mi53 min NE 1.9 G 1.9 52°F 1022.6 hPa
PXSC1 21 mi59 min 54°F 47°F
FTPC1 - 9414290 - San Francisco, CA 24 mi59 min S 2.9 G 4.1 49°F 56°F1023.8 hPa
46237 - San Francisco Bar, CA (142) 33 mi71 min 55°F9 ft
RTYC1 - 9414523 - Redwood City, CA 34 mi53 min S 5.1 G 6 48°F 60°F1024.2 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 44 mi41 min N 5.8 G 7.8 53°F 56°F1023.4 hPa
PRYC1 - 9415020 - Point Reyes, CA 48 mi53 min 56°F1022.7 hPa

Wind History for Union Pacific Rail Road Bridge (UPRR), CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Concord, Buchanan Field, CA1 mi18 minSSE 410.00 miFair46°F39°F79%1022.1 hPa
Napa, Napa County Airport, CA19 mi17 minENE 410.00 miFair44°F42°F93%1022.4 hPa
Oakland, Metro Oakland International Airport, CA21 mi18 minE 510.00 miFair49°F46°F93%1023.5 hPa
Fairfield / Travis Air Force Base, CA22 mi13 minWSW 410.00 miFair43°F39°F89%1024.4 hPa
Hayward, Hayward Air Terminal, CA22 mi17 minENE 310.00 miFair59°F42°F54%1024.3 hPa
Livermore, Livermore Municipal Airport, CA23 mi18 minENE 310.00 miFair41°F37°F89%1023.5 hPa

Wind History from CCR (wind in knots)
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Last 24hrW5CalmE4CalmS5W4CalmSW3W7NW6W9NW13W7W11W11NW12NW11W10W6SW5SW5SW4SE5S4
1 day agoS5S5S5S4S5SW6S5S9S6S8E3CalmS8S6SW6SW6S7SE6CalmN3CalmW3N3Calm
2 days agoS6S6CalmS4SE3CalmS3--CalmN34N7NW11NW9W10W12--SW8SW3W4SW6SW5SW5SE3

Tide / Current Tables for Benicia, Carquinez Strait, California
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Benicia
Click for Map
Sun -- 04:33 AM PDT     5.43 feet High Tide
Sun -- 07:06 AM PDT     Sunrise
Sun -- 09:39 AM PDT     Moonset
Sun -- 11:26 AM PDT     0.10 feet Low Tide
Sun -- 05:44 PM PDT     4.46 feet High Tide
Sun -- 07:24 PM PDT     Sunset
Sun -- 11:05 PM PDT     1.30 feet Low Tide
Sun -- 11:48 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.52.63.84.85.45.44.93.92.61.50.60.20.20.81.82.93.84.34.443.22.31.61.3

Tide / Current Tables for Roe Island S, Suisun Bay, California Current
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Roe Island S
Click for Map
Sun -- 01:01 AM PDT     0.00 knots Slack
Sun -- 03:30 AM PDT     0.98 knots Max Flood
Sun -- 06:45 AM PDT     -0.00 knots Slack
Sun -- 07:05 AM PDT     Sunrise
Sun -- 09:39 AM PDT     Moonset
Sun -- 10:12 AM PDT     -2.12 knots Max Ebb
Sun -- 02:09 PM PDT     0.00 knots Slack
Sun -- 04:43 PM PDT     0.77 knots Max Flood
Sun -- 07:23 PM PDT     Sunset
Sun -- 07:45 PM PDT     -0.00 knots Slack
Sun -- 10:29 PM PDT     -1.56 knots Max Ebb
Sun -- 11:48 PM PDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.9-00.60.90.90.70.4-0.2-1.2-1.9-2.1-2-1.7-1-0.10.40.70.80.60.3-0.2-1.1-1.5-1.5

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 (5,6,7,8)
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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.