Friday, May24, 2019 L-36.com


Marine Weather and Tides
Potrero, 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 5:43AMSunset 7:43PM Friday May 24, 2019 10:19 AM PDT (17:19 UTC) Moonrise 12:11AMMoonset 10:48AM Illumination 69% Phase: Waning Gibbous; Moon at 20 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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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 216 Am Pdt Fri May 24 2019
Today..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft at 11 seconds and S 3 to 4 ft at 18 seconds.
Tonight..Wind nw 10 kt with gusts to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 3 ft at 11 seconds and sw 2 to 3 ft at 17 seconds.
Sat..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 10 seconds and sw 2 to 3 ft at 17 seconds.
Sat night..Wind variable less than 10 kt...becoming sw 10 kt after midnight. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and sw 2 to 3 ft at 16 seconds. Chance of showers after midnight.
Sun..Wind W 10 to 15 kt. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Mixed swell W 2 to 3 ft at 10 seconds and sw 2 to 3 ft at 16 seconds. Chance of showers in the morning, then showers likely in the afternoon.
Sun night..Wind W 10 to 15 kt. Wind waves 3 ft. Mixed swell W 3 to 4 ft and sw 2 to 3 ft. Showers likely in the evening, then chance of showers after midnight.
Memorial day..Wind W 10 to 15 kt. Wind waves 2 ft or less... Becoming 3 ft in the afternoon. Mixed swell W 3 to 4 ft and sw 2 to 3 ft. Chance of showers in the morning.
Mon night..Wind W 10 to 15 kt. Wind waves 3 ft in the evening... Becoming 2 ft or less. Mixed swell W 3 to 4 ft and sw 2 to 3 ft.
Tue..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 3 to 4 ft and sw 2 to 3 ft.
Tue night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 4 ft and sw 2 to 3 ft.
PZZ700 216 Am Pdt Fri May 24 2019
Synopsis for the far southern california coast.. At 2 am, a 1032 mb high was 1200 nm west of cape mendocino and a 1010 mb low covered southern sonora, mexico. Weak onshore flow will continue through Saturday, increasing a little Saturday night through Tuesday.


7 Day Forecast for Marine Location Near Potrero, CA
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location: 31.69, -116.65     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 241605 aaa
afdsgx
area forecast discussion
national weather service san diego ca
905 am pdt Fri may 24 2019

Synopsis
Except for a slight chance of showers near the san bernardino
mountains this afternoon and Saturday afternoon, it will be drier
and warmer through Saturday. For Sunday into Monday, a low pressure
system from the north will bring cooling, stronger onshore flow with
strong and gusty southwest to west winds in the mountains and
deserts for Sunday into Sunday night, and periods of showers for
Sunday into Monday morning. Tuesday through Thursday will be dry
with a warming trend, but with temperatures remaining below average.

Discussion For extreme southwestern california including orange...

san diego... Western riverside and southwestern san bernardino
counties...

morning update:
no changes were made to the forecast this morning. Welcome
moderation in temps today with abundant sunshine, except for some
diurnal cumulus development near the mountains this afternoon, and a
slight chance of showers in the san bernardino mountains. Still
looking at another episode of rain likely for Sunday and Sunday
night.

Previous forecaster discussion:
a trough of low pressure across southern california into the pacific
off the coast of baja will continue into Saturday. Outside of a
slight chance of showers near the san bernardino mountains for this
afternoon and Saturday afternoon, it is expected to drier with a
warming trend into Saturday but with high temperatures still well
below average for inland areas on Saturday.

A closed low pressure system is expected to move southward along the
northern and central california coast for Saturday night, moving
into central and southern california on Sunday with the center
moving to near las vegas for early Monday.

This will bring 10 to 15 degrees of cooling for inland areas on
Sunday with around 5 degrees of warming on Monday. It will
strengthen the onshore flow with periods of stronger and gusty
southwest to west winds in the mountains and deserts for Sunday
morning into Sunday evening. Wind gusts could reach 65 mph in the
windier locations.

This low pressure system will also bring periods of showers, mainly
along and west of the mountains, for late Saturday night into Monday
morning. Rainfall is expected to range from around one tenth inch or
less near the coast to around one quarter inch in the mountains,
except one third to one half inch in the san bernardino county
mountains with locally greater amounts on the coastal slopes. Snow
levels will mostly be around 6500 feet with a few inches of snowfall
possible above 7000 feet.

Long term (Monday through Thursday)
Upper level low pressure is expected to be centered near las vegas
for early Monday, with the center moving eastward and being centered
over the central rockies by early Tuesday. Showers may linger
through Monday morning along and west of the mountains with drying
and a little warming for Monday afternoon.

Weak upper low pressure troughing will remain across southern
california for Tuesday and Wednesday with another trough of low
pressure developing over california and nevada for late Thursday
into Friday.

Tuesday through Thursday will be dry with a warming trend, though
with high temperatures still a few degrees below average on
Thursday. The main impact of that new trough of low pressure for
late in the week other than to bring some cooling, will be to deepen
the marine layer.

Aviation
241535z... Coast valleys... Few low clouds with bases 1500-2500 feet
msl through 22z. Increasing coverage of low clouds after 03z in the
coastal basin with bases around 1500 feet msl... Spreading up to 20
miles inland by 14z sat.

Elsewhere, mostly clear skies with unrestricted vis through tonight.

Marine
No hazardous marine weather is expected through Wednesday.

Skywarn
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

Sgx watches warnings advisories
Ca... None.

Pz... None.

Public... 17 jmb
aviation marine... Pg


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TIXC1 - Tijuana River Reserve, CA 66 mi95 min N 1.9 63°F 1016 hPa54°F
SDBC1 - 9410170 - San Diego, CA 76 mi38 min 65°F1015.3 hPa

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Diego, Brown Field Municipal Airport, CA64 mi27 minNNW 410.00 miFair65°F48°F56%1015 hPa

Wind History from SDM (wind in knots)
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Tide / Current Tables for Ensenada, Baja California Norte, Mexico
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Ensenada
Click for Map
Fri -- 12:11 AM PDT     Moonrise
Fri -- 12:27 AM PDT     1.35 meters High Tide
Fri -- 05:44 AM PDT     Sunrise
Fri -- 08:24 AM PDT     0.08 meters Low Tide
Fri -- 10:48 AM PDT     Moonset
Fri -- 04:08 PM PDT     0.98 meters High Tide
Fri -- 07:35 PM PDT     0.90 meters Low Tide
Fri -- 07:42 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.31.31.21.10.80.60.40.20.10.10.20.40.50.70.91110.90.90.90.911.1

Tide / Current Tables for Ensenada, Baja California Norte, Mexico (2)
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Ensenada
Click for Map
Fri -- 12:11 AM PDT     Moonrise
Fri -- 12:21 AM PDT     1.38 meters High Tide
Fri -- 05:44 AM PDT     Sunrise
Fri -- 08:25 AM PDT     0.13 meters Low Tide
Fri -- 10:48 AM PDT     Moonset
Fri -- 04:21 PM PDT     1.01 meters High Tide
Fri -- 07:32 PM PDT     0.95 meters Low Tide
Fri -- 07:42 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.41.41.31.10.90.60.40.20.10.10.20.40.60.70.9111111111.1

Weather Map and Satellite Images
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wmap_P
GOES Local Image of Southwest    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 San Diego, CA (13,3,4,5)
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Ground Weather Radar Station San Diego, 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.