Sunday, April22, 2018 L-36.com


Marine Weather and Tides
Boulevard, CA

Version 3.4
What's New / NOTES
3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.

Sunrise 6:06AMSunset 7:23PM Sunday April 22, 2018 3:07 PM PDT (22:07 UTC) Moonrise 12:04PMMoonset 1:23AM Illumination 51% Phase: First Quarter Moon; Moon at 7 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- 122 Pm Pdt Sun Apr 22 2018
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft at 14 seconds. SWell S 3 ft.
Mon..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 to 3 ft at 14 seconds.
Mon night..Wind W to 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 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. SWell W 2 ft at 12 seconds.
Tue night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 ft at 12 seconds.
Wed..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 and S 3 ft.
Wed night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 3 ft and S 3 ft.
Thu..Wind variable less than 10 kt...becoming W 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 3 ft.
Thu night..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 1 to 2 ft and S 3 ft.
Fri..Wind W 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 3 ft.
Fri night..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 1 to 2 ft and S 3 ft.
PZZ700 122 Pm Pdt Sun Apr 22 2018
Synopsis for the far southern california coast..At 1 pm, a 1032 mb high was about 280 nm west of portland oregon, and a 1009 mb low was about 20 miles east of lake havasu. Weak onshore flow will continue through Wednesday, strengthening on Thursday. Patchy fog this afternoon could increase in coverage tonight into Monday morning and return Monday night into Tuesday morning.

7 Day Forecast for Marine Location Near Boulevard, CA
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location: 32.67, -116.31     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 222057
afdsgx
area forecast discussion
national weather service san diego ca
157 pm pdt Sun apr 22 2018

Synopsis
High pressure aloft and weak onshore flow will bring warmer
weather through Monday with a gradual return of night and morning
coastal low clouds and patchy fog. For Tuesday through Friday, a
low pressure system off the west coast will begin to move towards
the pacific northwest late in the week. This will slowly
strengthen onshore flow across southern california and bring slow
deepening of the marine layer. Areas of night and morning coastal
low clouds and fog will spread into portions of the valleys with a
cooling trend spreading into the valleys.

Discussion For extreme southwestern california including orange...

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

Short term (tonight through Tuesday)
Hi-res models have been way too aggressive with marine layer
stratus the past couple of nights and again are depicting a solid
marine layer stratus infiltrating the coast and inland valleys.

Current visibile satellite imagery shows some stratus around san
clemente island with another area along the northern baja coast,
slowly creeping north. However, a clear sky is seen across all of
southern california this afternoon.

The big challenge is the extent of low clouds and especially any
fog tonight. Given a developing onshore weak pressure gradient
tonight and some stratus seen moving towards the area, believe
that low marine layer cloudiness will be more prevalent tonight.

Fog is a higher uncertainty and of low confidence, though patchy
fog is possible.

Tranquil weather will prevail acoss the area through early next
week as zonal flow then weak upper level ridging dominates.

This will result in pleasant weather conditions with plenty of
sunshine aside from nighttime and early morning low cloudiness
potential. Temps will be similar each day with above average
readings continuing.

.Long term (Wednesday through Saturday from previous
discussion)...

a low pressure system off the west coast will move slowly towards
the pacific northwest with the GFS farther south and a little
faster and the ECMWF slower and farther north with the ecmwf
ensemble mean in between and favored for now. Onshore flow will
strengthen with slow cooling for inland areas for Wednesday
through Saturday with periods of gusty southwest to west winds in
the mountains and deserts. The marine layer will slowly deepen
with slow cooling spreading into the valleys and with areas of
night and morning coastal low clouds and fog spreading farther
into the valleys.

Aviation
221930z... Coast... A few patches of low clouds and fog linger at the
beaches this afternoon with no impacts at TAF sites. Low clouds
could begin to increase in coverage and spread inland around 03z
mon, but timing is uncertain. Expect cloud bases 400-800 ft msl and
areas of vis below 3 sm extending up to 5 miles inland by 12z mon.

Vis of 1 mile or less will be possible on higher coastal terrain.

Low clouds and fog expected to lift between 14z and 16z Monday.

Otherwise, few-sct clouds at above 25000 ft msl through late
tonight.

Valleys mountains deserts... Few-sct clouds at above 25000 ft msl
with unrestricted vis through late tonight.

Marine
Patchy fog may develop over the coastal waters each morning through
Wednesday. Otherwise no hazardous marine weather is expected through
Thursday.

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... Gregoria
aviation marine... Pg


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TIXC1 - Tijuana River Reserve, CA 44 mi82 min WSW 4.1 66°F 1015 hPa59°F
SDBC1 - 9410170 - San Diego, CA 46 mi55 min 62°F1013.5 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
Campo, CA9 mi75 minW 13 G 23 mi83°F28°F14%1010.4 hPa

Wind History from NJK (wind in knots)
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Last 24hrSW4W5SW4CalmSE6SE6SW7SW6W7SW6SW4W4W6W7SW4W8W5SW4NW6--Calm--34
1 day agoCalmSW5SW5SW6S4S5SW10W5SW4W4SW7W5W3W5SW3W5NW3NW53E43E6E54
2 days agoSW25
G31
W15
G24
W17W24
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W21W18W13W14W13W9W9SW7W12W9W7NW8W5W85Calm3E56N5

Tide / Current Tables for National City, San Diego Bay, California
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National City
Click for Map
Sun -- 01:25 AM PDT     Moonset
Sun -- 02:44 AM PDT     5.27 feet High Tide
Sun -- 06:10 AM PDT     Sunrise
Sun -- 10:33 AM PDT     -0.26 feet Low Tide
Sun -- 12:07 PM PDT     Moonrise
Sun -- 02:46 PM PDT     First Quarter
Sun -- 05:37 PM PDT     4.06 feet High Tide
Sun -- 07:23 PM PDT     Sunset
Sun -- 10:32 PM PDT     2.59 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.14.75.25.354.33.32.21.10.3-0.2-0.20.211.92.93.6443.83.42.92.62.6

Tide / Current Tables for Imperial Beach, California
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Imperial Beach
Click for Map
Sun -- 01:25 AM PDT     Moonset
Sun -- 02:40 AM PDT     4.72 feet High Tide
Sun -- 06:10 AM PDT     Sunrise
Sun -- 10:19 AM PDT     -0.25 feet Low Tide
Sun -- 12:07 PM PDT     Moonrise
Sun -- 02:46 PM PDT     First Quarter
Sun -- 05:33 PM PDT     3.59 feet High Tide
Sun -- 07:23 PM PDT     Sunset
Sun -- 10:19 PM PDT     2.49 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.84.34.64.74.43.72.81.80.80.1-0.2-0.20.311.82.63.23.53.63.332.72.52.5

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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for San Diego, CA (18,4,5,8)
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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.