Sunday, August18, 2019 L-36.com


Marine Weather and Tides
Ladera, CA

Version 3.4
NOTICE
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 6:26AMSunset 7:59PM Sunday August 18, 2019 2:36 PM PDT (21:36 UTC) Moonrise 8:58PMMoonset 8:14AM Illumination 89% 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
    EDIT      (on/off)   Help
PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 153 Pm Pdt Sun Aug 18 2019
.small craft advisory in effect until 9 pm pdt this evening...
Rest of today..SW winds 10 to 20 kt with gusts up to 30 kt.
Tonight..SW winds 15 to 20 kt with gusts up to 25 kt.
Mon..SW winds 15 to 20 kt with gusts up to 25 kt.
Mon night..SW winds 10 to 15 kt with gusts up to 25 kt.
Tue..SW winds 15 to 20 kt with gusts up to 30 kt.
Tue night..SW winds 15 to 20 kt with gusts up to 25 kt.
Wed..SW winds 15 to 20 kt with gusts up to 25 kt.
Thu..SW winds 15 to 20 kt with gusts up to 25 kt.
PZZ500 153 Pm Pdt Sun Aug 18 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light to locally moderate northwest winds will continue across the coastal waters through mid week as high pressure weakens over the eastern pacific and a low pressure system develops off of british columbia. Locally gusty afternoon and evening winds can be expected in the northern san francisco bay around the golden gate and through the delta. The sea state will remain dominated by shorter period northwest waves at around 8 to 10 seconds along with a light southerly swell. Additionally, a lighter more moderate period west to northwest swell will affect the coastal waters through mid week.


7 Day Forecast for Marine Location Near Ladera, CA
   Hourly   EDIT   Help
location: 37.4, -122.21     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 182054
afdmtr
area forecast discussion
national weather service san francisco bay area
154 pm pdt Sun aug 18 2019

Synopsis A deep marine layer will prevail along the west coast
for the next 24 hours or so, with seasonal conditions prevailing
as well as some patchy drizzle possible during the late night and
early morning hours. A gradual warming trend will develop midweek
and continue through next weekend as higher pressure rebuilds over
northern california.

Discussion As of 01:45 pm pdt Sunday... Water vapor imagery
continues to show a trough of low pressure along the west coast
this afternoon. There are a series of weak disturbances moving
through this trough, with one moving inland across far northern
california at this time, and another along 140 north approaching
130 west. This first disturbance helped deepen the marine layer
overnight, with the fort ord profiler still showing the marine
layer around 3000 feet deep. Meanwhile, the visible satellite
imagery shows a nice little eddy spinning off our immediate coast,
approximately 40 miles west southwest of san francisco this
afternoon. Given the deep nature of the marine layer in
combination with this eddy producing upslope flow into the
northern monterey bay today, we had numerous reports of drizzle,
some of which was heavy enough to tip the rain gauges. Most
places only reported a hundredth of two, but a few locations
around santa cruz measured up to 0.08 inches. The marine stratus has
also been slow to pull back to the coast today, resulting in
inland areas running up to four degrees cooler than this time
yesterday, while coast areas are similar to or slightly warmer.

All in all, not expecting much change over the next 24 hours,
with a deep marine layer and more seasonal conditions prevailing.

We could even see more late night and early morning drizzle
possible, especially in the upslope areas of the northern monterey
bay once again.

High pressure will then gradually begin to build back across the
region by midweek and continue through next weekend. At this time,
believe that inland areas will likely see gradually warmer
conditions this week, with it not really affecting the coastal
areas until Thursday or Friday. This is in part due to some model
differences with the 12z GFS trying to lift one last disturbance
across the region on Thursday, which could help modify
temperatures and the marine layer a bit. This looks a little
suspect compared to the 12z ecmwf, which trends more in line with
the ensembles, with the ridge building faster. Either way, expect
warmer conditions to start to develop come Tuesday, with next
weekend potentially being significantly warmer across the region
once again. Palmer

Aviation As of 10:35 am pdt Sunday... For 18z tafs. The marine
layer remains fairly deep this morning at over 3,000 ft agl per
the fort ord profiler. Satellite imagery shows low clouds
beginning to dissipate over land while stratus remains offshore.

Most sites are currentlyVFR aside from ksts, kmry, and ksns.

Expecting clearing to occur within the next hour or so.VFR
conditions to then prevail for all sites into this evening before
stratus returns. Some compression of the marine layer is expected
tonight and tomorrow as high pressure gradually rebuilds over
texas. Overall, all the sites that saw low clouds into this
morning are expected to see MVFR to ifr conditions overnight
tonight. Variable to southerly winds this morning are forecast to
turn onshore by this afternoon at around 10-15 kt.

Vicinity of ksfo...VFR through late tonight before MVFR CIGS are
expected to develop. It is possible, however, that once again sfo
may be left only sct overnight. Light winds this morning expected
to increase and turn SW to W by this afternoon near 15 kt. Lighter
winds expected tonight.

Sfo bridge approach... Similar to ksfo.

Monterey bay terminals... Satellite shows MVFR CIGS quickly
eroding.VFR conditions are expected over the next hour or so and
will then prevail through the afternoon. Guidance indicates another
early return of stratus this evening with MVFR to possibly ifr
conditions overnight and into tomorrow morning. Light winds this
morning will increase and turn onshore by this afternoon at around
10-15 kt.

Marine As of 01:54 pm pdt Sunday... Generally light to locally
moderate northwest winds will continue across the coastal waters
through mid week as high pressure weakens over the eastern
pacific and a low pressure system develops off of british
columbia. Locally gusty afternoon and evening winds can be
expected in the northern san francisco bay around the golden gate
and through the delta. The sea state will remain dominated by
shorter period northwest waves at around 8 to 10 seconds along
with a light southerly swell. Additionally, a lighter more
moderate period west to northwest swell will affect the coastal
waters through mid week.

Mtr watches warnings advisories
Tngt Sca... Sf bay until 9 pm
public forecast: palmer
aviation: as
marine: as
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
RTYC1 - 9414523 - Redwood City, CA 7 mi48 min NW 4.1 G 8.9 72°F 76°F1012.1 hPa
AAMC1 - 9414750 - Alameda, CA 26 mi54 min SSW 8 G 9.9 66°F 71°F1012.6 hPa
LNDC1 28 mi48 min SW 8 G 11 67°F 1012 hPa
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 28 mi48 min SW 4.1 G 6
OKXC1 - 9414776 - Oakland (Berth 34), CA 29 mi48 min W 1 G 4.1 67°F 1012.1 hPa
PXOC1 - 9414311 - San Francisco (Pier 1), CA 29 mi54 min E 5.1 G 6 66°F 1011 hPa
OBXC1 29 mi48 min 67°F 59°F
FTPC1 - 9414290 - San Francisco, CA 31 mi54 min SSW 12 G 18 64°F 62°F1012.6 hPa
46237 - San Francisco Bar, CA (142) 35 mi36 min 59°F4 ft
TIBC1 - Tiburon Pier, San Francisco Bay, CA 36 mi43 min SW 9.9 64°F 1013 hPa (+0.0)
PPXC1 - 9414847 - Richmond (Point Potrero), CA 36 mi54 min WSW 14 G 19 64°F 1012.3 hPa
RCMC1 - 9414863 - Richmond, CA 38 mi54 min WSW 8.9 G 12 64°F 67°F1012.2 hPa
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 41 mi26 min SSE 9.7 G 14 57°F 56°F1013.2 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 44 mi48 min NW 20 G 23
UPBC1 44 mi48 min WNW 19 G 24
46042 - MONTEREY - 27NM West of Monterey Bay, CA 44 mi46 min WSW 7.8 G 9.7 60°F 60°F5 ft1013.6 hPa (+0.3)
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 45 mi48 min W 15 G 21 65°F 1011.3 hPa
PCOC1 - 9415144 - Port Chicago, CA 46 mi48 min W 18 G 21
46092 - MBM1 46 mi76 min SSW 9.7 59°F 60°F1013.9 hPa (-0.4)
MLSC1 - Moss Landing, South Harbor, CA 47 mi27 min WSW 8 G 21 63°F 1014.4 hPa58°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 47 mi48 min NW 13 G 19
46114 - West Monterey Bay, CA 47 mi36 min 61°F5 ft
ELXC1 - Elkhorn Slough Reserve, CA 48 mi51 min WNW 8.9 67°F 1013 hPa59°F

Wind History for Redwood City, CA
(wind in knots)    EDIT      (on/off)   Help
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
1
PM
Last
24hr
W12
W12
W11
G14
W7
G10
W9
NW5
G8
W6
W2
S6
G9
S7
G10
S2
NE1
SE4
S3
SE1
S3
E3
SE1
S1
NW1
NE2
G5
E1
G5
NW8
G11
NW7
G11
1 day
ago
NW12
G15
N10
G13
N11
NW12
G16
NW11
NW10
G13
NW7
N5
NW2
NW4
NE2
N1
W5
W3
W5
W4
S1
E1
S3
NE2
N4
G8
N5
G8
NE8
N7
G10
2 days
ago
N9
NW10
N10
N11
G14
N12
N10
G13
N8
N7
G10
NW3
NW4
NW3
NE2
NW4
NW3
NW3
G6
NW4
NW3
W4
NW3
NW2
E4
N5
N7
G10
N11
G14

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Palo Alto Airport, CA7 mi1.8 hrsW 5 G 1410.00 miClear77°F57°F51%1011.5 hPa
San Carlos Airport, CA9 mi1.8 hrsW 910.00 miClear73°F57°F57%1012.2 hPa
Mountain View, Moffett Field, CA9 mi2.7 hrsSE 12 G 1710.00 miFair75°F55°F50%1012.1 hPa
San Jose, San Jose International Airport, CA15 mi1.7 hrsSSE 1210.00 miA Few Clouds77°F55°F48%1011.7 hPa
San Francisco, San Francisco International Airport, CA17 mi2.7 hrsE 610.00 miPartly Cloudy70°F55°F61%1012 hPa
Half Moon Bay Airport, CA17 mi1.7 hrsS 16 G 2010.00 miMostly Cloudy64°F55°F73%1013.5 hPa
Hayward, Hayward Air Terminal, CA19 mi1.7 hrsW 910.00 miFair75°F57°F55%1012.5 hPa
Oakland, Metro Oakland International Airport, CA21 mi1.7 hrsW 810.00 miA Few Clouds73°F55°F55%1012 hPa
San Jose / Reid / Hillv, CA21 mi1.8 hrsS 1110.00 miA Few Clouds75°F55°F50%1011.8 hPa

Link to 5 minute data for KPAO

Wind History from PAO (wind in knots)
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
-12
PM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
Last 24hrN8N5--W13W7SW6------------------CalmCalmCalm4Calm--W5
G14
E10
G20
N10
1 day ago--NW12--N14N9NW6------------------CalmCalmCalmCalm--N7N7--N7
2 days ago----NW11NW8NW6N6------------------CalmCalmN555N7N11NW13NW13

Tide / Current Tables for Palo Alto Yacht Harbor, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Palo Alto Yacht Harbor
Click for Map
Sun -- 02:58 AM PDT     7.90 feet High Tide
Sun -- 06:26 AM PDT     Sunrise
Sun -- 09:14 AM PDT     Moonset
Sun -- 10:11 AM PDT     0.60 feet Low Tide
Sun -- 03:50 PM PDT     7.40 feet High Tide
Sun -- 07:56 PM PDT     Sunset
Sun -- 09:57 PM PDT     Moonrise
Sun -- 10:40 PM PDT     2.37 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
4.367.47.97.46.14.63.221.10.60.923.95.87.17.46.95.94.93.93.12.52.4

Tide / Current Tables for Dumbarton Hwy Bridge, South San Francisco Bay, California Current
   EDIT      (on/off)   Help   One Week of Data
Dumbarton Hwy Bridge
Click for Map
Sun -- 12:35 AM PDT     1.37 knots Max Flood
Sun -- 03:20 AM PDT     -0.00 knots Slack
Sun -- 06:26 AM PDT     Sunrise
Sun -- 06:50 AM PDT     -1.23 knots Max Ebb
Sun -- 09:14 AM PDT     Moonset
Sun -- 10:05 AM PDT     0.01 knots Slack
Sun -- 01:11 PM PDT     1.61 knots Max Flood
Sun -- 04:17 PM PDT     -0.01 knots Slack
Sun -- 07:17 PM PDT     -0.91 knots Max Ebb
Sun -- 07:57 PM PDT     Sunset
Sun -- 09:57 PM PDT     Moonrise
Sun -- 10:14 PM PDT     0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
1.31.310.3-0.3-0.8-1.1-1.2-1-0.6-00.71.31.61.510.3-0.3-0.7-0.9-0.8-0.5-0.10.5

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 (17,4,5,8)
      (on/off)   Help

Ground Weather Radar Station San Francisco Bay Area, 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.