Monday, August20, 2018 L-36.com


Marine Weather and Tides
Potrero, CA

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Sunrise 6:13AMSunset 7:24PM Monday August 20, 2018 8:01 AM PDT (15:01 UTC) Moonrise 3:31PMMoonset 1:20AM Illumination 67% Phase: Waxing Gibbous; Moon at 9 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- 154 Am Pdt Mon Aug 20 2018
Today..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 6 seconds and S 2 ft at 13 seconds.
Tonight..Wind W to 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and S 2 ft at 13 seconds.
Tue..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 11 seconds and S 2 ft at 13 seconds.
Tue night..Wind nw 10 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 11 seconds and S 2 ft at 12 seconds.
Wed..Wind nw 10 to 15 kt. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 2 ft at 6 seconds and S 2 ft at 12 seconds.
Wed night..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 ft.
Thu..Wind nw 10 kt. Gusts to 15 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 2 to 3 ft and S 2 ft.
Thu night..Wind nw 10 kt. Wind waves 2 ft or less. Mixed swell W 3 ft and S 2 ft.
Fri..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 and S 1 to 2 ft.
Fri night..Wind nw 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 1 to 2 ft.
PZZ700 154 Am Pdt Mon Aug 20 2018
Synopsis for the far southern california coast.. At 1 am, a 1031 mb high was 700 nm west of seattle, and a 1002 mb low was near needles, california. Weak to moderate onshore flow will continue through Friday.


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 201025
afdsgx
area forecast discussion
national weather service san diego ca
325 am pdt Mon aug 20 2018

Synopsis
Southwestern california will be on the western fringe of a more
substantial influx of monsoonal moisture into southern arizona on
Tuesday. This will bring a slight chance of thunderstorms this
afternoon and early evening and again Tuesday afternoon, mainly
along the desert slopes of the mountains of riverside and san
diego counties. Onshore lower level flow and drier southwest flow
aloft will then prevail for much of the week. Areas of night and
morning coastal low clouds and fog will spread into the western
valleys at times. There will be gusty southwest to west winds in
the afternoon and evening in the mountains and deserts for the
latter half of the week.

Discussion For extreme southwestern california including orange...

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

Short term (today through Wednesday)
Early this morning, high pressure aloft is centered over arizona
with a low pressure system moving into the pacific northwest. The
high pressure will move eastward, moving over texas on Tuesday as
the trough of low pressure over the pacific northwest expands
towards the southwest. The NAM is alone in taking more substantial
moisture farther towards the west than the other models across
northern mexico into the southwestern states. The current forecast
favors the global models in taking the more substantial moisture
into arizona on Tuesday with southwestern california on the
western edge of that moisture. A slight chance of thunderstorms is
retained for this afternoon and early evening and again Tuesday
afternoon, mainly along the desert slopes of the mountains of
riverside and san diego counties.

The marine layer and weak onshore flow will bring some slow
deepening of the marine layer into Tuesday with areas of night and
morning coastal low clouds and fog spreading a little farther into
the western valleys for late tonight in to Wednesday morning. This
will also spread slow cooling inland through Tuesday.

For late Tuesday and Wednesday, drier southwest flow aloft will
develop bringing a more substantial decrease in monsoonal
moisture. On Wednesday, high pressure aloft over texas will begin
to expand westward with the ridge axis to the south of southern
california. This will bring some warming to the valleys as the
marine layer becomes a little shallower.

Long term (Thursday through Sunday)
Subtropical high pressure will remain centered to the south of
southern california with a trough of low pressure near the pacific
northwest coast. This will maintain onshore lower level flow
across southern california with dry southwest to west flow aloft.

There will be minor day to day temperature changes with high
temperatures remaining a few degrees above average.

Aviation
201030z... Coasts valleys... Stratus will continue through 16-18z
within 25-30 miles of the coast. Bases will be 1200-1500 ft msl with
tops to 1800 ft msl. Local vis 2-4 miles will occur in the valleys
through 16z. After 18z, mostly clear skies will prevail until
stratus develops again tonight between 03z and 06z and spreads up to
25 miles inland by 12z Tue with similar bases compared to this
morning.

Mountains deserts... There is a slight chance of thunderstorms this
afternoon over mainly the mountains, with CB bases 8000-9000 ft msl
and tops to 40000 ft msl, along with strong up downdrafts and local
surface gusts to 30 kt. Otherwise, mostly sct clouds above 10000 ft
msl will prevail with mostly unrestricted vis.

Marine
No hazardous marine weather is expected through Friday.

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
aviation marine... Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TIXC1 - Tijuana River Reserve, CA 66 mi76 min S 1.9 71°F 1014 hPa67°F
SDBC1 - 9410170 - San Diego, CA 76 mi37 min 1013.3 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 mi68 minN 06.00 miOvercast with Haze70°F64°F84%1013.4 hPa

Wind History from SDM (wind in knots)
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Last 24hrNW3NW554SW8W8
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NW7W9W8W64W5W3W4W3W4CalmSW3S3S3SW5CalmCalm
1 day ago333W8W9W8W8W8W7NW8W7W8W6W7W5W4CalmCalmCalmCalmW3CalmCalmCalm
2 days agoCalmW3W66W7W9W8W9NW8
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NW6NW6W5W5W4W3CalmW4W33W3CalmCalmCalmW4

Tide / Current Tables for Ensenada, Baja California Norte, Mexico
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Ensenada
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Mon -- 12:45 AM PDT     0.21 meters Low Tide
Mon -- 01:19 AM PDT     Moonset
Mon -- 06:14 AM PDT     Sunrise
Mon -- 07:20 AM PDT     1.02 meters High Tide
Mon -- 11:52 AM PDT     0.76 meters Low Tide
Mon -- 03:31 PM PDT     Moonrise
Mon -- 06:13 PM PDT     1.51 meters High Tide
Mon -- 07:24 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.20.20.30.40.60.80.9110.90.80.80.80.80.91.11.31.41.51.51.31.10.80.5

Tide / Current Tables for Imperial Beach, California
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Imperial Beach
Click for Map
Mon -- 12:53 AM PDT     0.73 feet Low Tide
Mon -- 01:20 AM PDT     Moonset
Mon -- 06:15 AM PDT     Sunrise
Mon -- 07:32 AM PDT     3.57 feet High Tide
Mon -- 12:06 PM PDT     2.60 feet Low Tide
Mon -- 03:34 PM PDT     Moonrise
Mon -- 06:27 PM PDT     5.21 feet High Tide
Mon -- 07:27 PM PDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.90.70.91.42.12.73.33.53.53.332.72.62.73.13.64.34.85.25.24.73.92.91.9

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 (11,2,3,4)
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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.