Thursday, June20, 2019 L-36.com


Marine Weather and Tides
Daly City, CA

Version 3.4
NOTICE
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 5:46AMSunset 8:35PM Wednesday June 19, 2019 10:47 PM PDT (05:47 UTC) Moonrise 9:46PMMoonset 6:52AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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
PZZ545 Coastal Waters From Point Reyes To Pigeon Point California Out To 10 Nm- 845 Pm Pdt Wed Jun 19 2019
Tonight..SW winds 10 to 15 kt. Wind waves 3 to 4 ft. NW swell 5 to 7 ft at 11 seconds. Patchy fog.
Thu..SW winds 10 to 15 kt. Wind waves around 3 ft. NW swell 6 to 8 ft at 11 seconds.
Thu night..SW winds 10 to 15 kt. Wind waves 3 to 4 ft. NW swell 7 to 9 ft at 11 seconds.
Fri..W winds 10 to 15 kt. Wind waves around 3 ft. NW swell 8 to 10 ft at 11 seconds.
Fri night..NW winds 15 to 25 kt with gusts up to 30 kt. Wind waves 4 to 5 ft. NW swell 7 to 9 ft at 11 seconds.
Sat..NW winds 15 to 20 kt. Wind waves 2 ft or less. NW swell 6 to 8 ft.
Sun..W winds 15 to 20 kt. Wind waves 2 ft or less. NW swell 7 to 9 ft.
...san francisco bar/fourfathom bank forecast..... In the deep water channel...combined seas 5 to 7 ft with a dominant swell period of 10 seconds. Across the bar...combined seas 6 to 8 ft with a dominant swell period of 10 seconds. Maximum ebb current of 3.1 kt at 06:49 am Thursday and 1.4 kt at 08:13 pm Thursday.
PZZ500 845 Pm Pdt Wed Jun 19 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Light southerly winds will persist along the coast south of point reyes through tomorrow as northerly winds increase across the northern outer waters tonight. Gale force gusts will be possible starting tonight over the outer waters north of point reyes through at least tomorrow night. Elevated winds will become more widespread, mainly over the outer waters, tomorrow through Friday. These winds will result in steep fresh swell creating hazardous seas conditions, especially for smaller vessels.


7 Day Forecast for Marine Location Near Daly City, CA
   Hourly   EDIT   Help
location: 37.77, -122.54     debug


Area Discussion for - San Francisco/Monterey Bay Area, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 kmtr 200532
afdmtr
area forecast discussion
national weather service san francisco bay area
1032 pm pdt Wed jun 19 2019

Synopsis Slightly cooler temperatures are expected once again
on Thursday. Winds shift to the north on Friday and Saturday which
will allow for slightly warmer temperatures leading into the
weekend. These northerly winds have the potential to be gusty
particularly in the north bay hills Friday and Saturday mornings.

Discussion As of 08:03 pm pdt Wednesday... The marine layer is
trickling into low lying valleys this evening as it compresses
down to a modest 1000ft agl. It will retreat once again to the
coastline tomorrow afternoon. The eastern pacific ridge is
expected to continue to erode as a trough descends from the
pacific northwest tomorrow and into Friday. The bay area will
remain on the west side of the trough which will keep skies mostly
clear, providing plenty of sunshine and drier conditions. This
trough will bring northerly winds that will be gusty, 30 mph or
more, particularly in higher elevations of the north bay on
Friday and Saturday morning. These downsloping winds will help
bring warmer temperatures to the bay area Friday and into the
weekend. Extended models are showing the return of onshore flow
and a deeper marine layer early next week which will in turn bring
cooler temperatures.

Prev discussion As of 1:48 pm pdt Wednesday... Satellite imagery
shows low clouds have mostly cleared to the coast across the
district. There is still some stratus around the monterey bay,
near half moon bay, over portions of san francisco, and along the
sonoma county coast. Current temperature readings are running
cooler than yesterday at this time with 60s to lower 80s being
reported at area airports. Locations in the southern interior have
warmed into the upper 80s and lower 90s. The marine layer has
increased to around 2000 feet as of noon, and the onshore surface
pressure gradient is a healthy 2.9 mb, so expect low clouds to
spread inland again overnight.

An upper level low dropping south from western canada into the
pacific northwest will aid in continued cooling over the next
couple of days. Thursday will be the coolest day as an upper level
disturbance moves south across nevada with the trough axis moving
through our district. This disturbance will tighten an offshore
surface pressure gradient with north to northeast winds increasing
Thursday night as this trough moves through. The latest run of
the nam12 model still shows 925 mb winds in the 25 to 35 kt
range... Strongest over the higher terrain in napa county. After
weakening during the day Friday the north to northeast winds will
ramp up once again Friday night, although weaker than Thursday
night. Currently there are no watches or advisories for the north
and east bay hills but will continue to monitor.

Longer range models indicate a long-wave upper trough over the
eastern pacific, with high pressure over the rocky mountain
states. This will maintain cool to near seasonally normal temps
next week.

Aviation As of 10:32 pm pdt Wednesday... For 06z tafs. The
marine layer has rebounded to over 2000 ft agl per the fort ord
profiler. Satellite imagery shows low clouds have begun to move
inland and down the valleys. Conditions range fromVFR at ksjc and
klvk to ifr at ksts, koak, kmry and ksns. Expect stratus to
continue to expand overnight with MVFR ifr conditions to prevail
through tomorrow morning. Right now expecting clearing generally
between 17z-19z tomorrow for most locations. Winds will continue
to diminish overnight before increasing and turning onshore again
tomorrow afternoon.

Vicinity of ksfo... Satellite shows stratus slowly closing in on
the terminal. MVFR ifr CIGS expected to develop over the next
couple of hours and then continue into late tomorrow morning
(~17z-19z). Winds will remain light overnight before onshore
winds increase tomorrow afternoon.

Sfo bridge approach... Patches of stratus have developed around the
bridge. The approach may lose visuals before the terminal this
evening, otherwise similar to sfo.

Monterey bay terminals... Ifr CIGS have settled in for the evening.

Lifr conditions may develop overnight. Latest guidance continues
to show stratus hanging around the peninsula for most of the day
tomorrow. It is possible that MVFR ifr CIGS continue at kmry all
day tomorrow, but confidence is low. Generally light winds
overnight.

Marine As of 08:45 pm pdt Wednesday... Light southerly winds
will persist along the coast south of point reyes through tomorrow
as northerly winds increase across the northern outer waters
tonight. Gale force gusts will be possible starting tonight over
the outer waters north of point reyes through at least tomorrow
night. Elevated winds will become more widespread, mainly over the
outer waters, tomorrow through Friday. These winds will result in
steep fresh swell creating hazardous seas conditions, especially
for smaller vessels.

Mtr watches warnings advisories
Tngt Glw... Pt arena to pigeon pt 10-60 nm
sca... Pt arena to pt reyes 0-10 nm from 3 am
public forecast: dk
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
46237 - San Francisco Bar, CA (142) 5 mi47 min 58°F4 ft
FTPC1 - 9414290 - San Francisco, CA 5 mi53 min WSW 7 G 14 56°F 60°F1013.6 hPa
PXSC1 8 mi47 min 58°F 58°F
PXOC1 - 9414311 - San Francisco (Pier 1), CA 8 mi47 min W 7 G 14 57°F 1012.4 hPa (+0.4)
OBXC1 11 mi47 min 58°F 58°F
OKXC1 - 9414776 - Oakland (Berth 34), CA 11 mi47 min W 12 G 15 58°F 1013.3 hPa (+0.0)
OMHC1 - 9414769 - Oakland Middle Harbor Met, CA 11 mi53 min WSW 16 G 19
AAMC1 - 9414750 - Alameda, CA 13 mi53 min W 9.9 G 14 59°F 67°F1013.8 hPa
PPXC1 - 9414847 - Richmond (Point Potrero), CA 13 mi47 min SW 9.9 G 12 59°F 1013.4 hPa (+0.4)
RCMC1 - 9414863 - Richmond, CA 13 mi47 min 64°F
LNDC1 14 mi47 min W 8 G 15 59°F 1013.4 hPa (+0.3)
46026 - SAN FRANCISCO - 18NM West of San Francisco, CA 16 mi27 min SSW 7.8 G 12 56°F 58°F1014.3 hPa
DPXC1 - 9415141 - Davis Point, San Pablo Bay, CA 25 mi47 min SW 17 G 21 59°F 1011.9 hPa (+0.4)
RTYC1 - 9414523 - Redwood City, CA 25 mi47 min N 4.1 G 5.1 62°F 74°F1013.4 hPa (+0.6)
PRYC1 - 9415020 - Point Reyes, CA 28 mi53 min 58°F1013.5 hPa
UPBC1 29 mi47 min W 17 G 21
MZXC1 - 9415102 - Martinez-Amorco CA 29 mi53 min W 9.9 G 15 59°F 68°F1012.1 hPa59°F
PCOC1 - 9415144 - Port Chicago, CA 33 mi53 min WSW 13 G 16 60°F 69°F1011.6 hPa
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 39 mi53 min WNW 16 G 21 64°F 1010.4 hPa
SFXC1 - San Francisco Bay Reserve, CA 40 mi62 min W 14 61°F 1011 hPa56°F

Wind History for San Francisco, CA
(wind in knots)    EDIT      (on/off)   Help
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
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
Last
24hr
SW9
G16
W7
G15
W9
G16
W10
G16
SW10
G20
W7
G15
SW8
G12
W3
G7
SW4
G7
SW6
SW5
G11
W5
G8
W4
SW7
G13
W5
G14
W7
G13
W8
G14
W5
G13
SW6
G15
W10
G14
W10
G17
W9
G17
W6
G13
W4
G10
1 day
ago
SW7
G14
SW8
G14
W4
G10
W4
G10
SW5
G12
W5
G11
SW7
G10
W7
G10
SW5
W6
G10
SW3
G6
W2
W4
G10
W3
G10
SW3
G15
W7
G16
W7
G15
W9
G16
W10
G16
SW11
G20
W13
G21
W10
G22
SW4
G12
W6
G11
2 days
ago
SW7
G17
SW8
G11
SW7
G10
SW4
SW6
G11
W7
G11
W7
G12
W11
G15
W10
G17
W5
G16
W7
G13
W9
G20
W11
G21
SW9
G18
SW5
G9
SW5
G10
SW6
G17

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Francisco, San Francisco International Airport, CA14 mi51 minWNW 710.00 miA Few Clouds58°F54°F87%1012.8 hPa
Oakland, Metro Oakland International Airport, CA18 mi54 minW 1210.00 miMostly Cloudy62°F55°F80%1013.1 hPa
Half Moon Bay Airport, CA18 mi52 minS 85.00 miFog/Mist57°F55°F94%1014.2 hPa
San Carlos Airport, CA23 mi2 hrsNW 410.00 miA Few Clouds63°F55°F77%1012.5 hPa
Hayward, Hayward Air Terminal, CA24 mi53 minNNW 810.00 miOvercast60°F55°F84%1013.9 hPa

Wind History from SFO (wind in knots)
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
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
Last 24hrNW4W5W5CalmCalmCalmSW4CalmS4CalmE3N5NE5NE8NE8NE7NW17NW19NW17NW16NW12W15NW9W7
1 day agoNW43NW5N3W5S4S5SW3CalmCalmN6NE6N6NW13NW16NW20NW20NW20NW16
G23
NW16NW17
G22
NW13NW10NW7
2 days ago5W8W4S5SW5S5S4S5S6S6E7NE6NE6N6NE6NE8NW11NW13NW15NW14NW11W9NW5W4

Tide / Current Tables for Ocean Beach, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Ocean Beach
Click for Map
Thu -- 12:39 AM PDT     5.80 feet High Tide
Thu -- 05:48 AM PDT     Sunrise
Thu -- 07:39 AM PDT     -0.57 feet Low Tide
Thu -- 08:48 AM PDT     Moonset
Thu -- 03:12 PM PDT     4.74 feet High Tide
Thu -- 07:54 PM PDT     3.25 feet Low Tide
Thu -- 08:35 PM PDT     Sunset
Thu -- 11:24 PM PDT     Moonrise
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
5.75.85.34.32.91.40.2-0.4-0.5-0.10.71.72.83.84.54.74.64.23.83.43.33.43.94.5

Tide / Current Tables for South Channel, San Francisco Bay Approach, California Current
   EDIT      (on/off)   Help   One Week of Data
South Channel
Click for Map
Thu -- 02:14 AM PDT     -0.00 knots Slack
Thu -- 05:31 AM PDT     -1.86 knots Max Ebb
Thu -- 05:48 AM PDT     Sunrise
Thu -- 08:48 AM PDT     Moonset
Thu -- 09:13 AM PDT     0.01 knots Slack
Thu -- 12:18 PM PDT     1.39 knots Max Flood
Thu -- 04:09 PM PDT     -0.00 knots Slack
Thu -- 06:09 PM PDT     -0.80 knots Max Ebb
Thu -- 08:35 PM PDT     Sunset
Thu -- 09:08 PM PDT     0.00 knots Slack
Thu -- 11:24 PM PDT     Moonrise
Thu -- 11:51 PM PDT     0.82 knots Max Flood
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
0.80.60.1-0.5-1.3-1.8-1.8-1.4-0.9-0.20.61.11.41.31.10.70.1-0.5-0.8-0.7-0.4-0.10.40.7

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 (1,6,7,8)
      (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.