Wednesday, January24, 2018 L-36.com


Marine Weather and Tides
Potrero, CA

Version 3.4
What's New / NOTES
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.
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.

Sunrise 6:42AMSunset 5:14PM Tuesday January 23, 2018 9:40 PM PST (05:40 UTC) Moonrise 11:47AMMoonset 12:00AM Illumination 50% 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- 117 Pm Pst Tue Jan 23 2018
Tonight..Wind nw 10 kt with gusts to 15 kt... Becoming ne to 10 kt after midnight. Wind waves 2 ft or less. SWell W 3 to 4 ft at 13 seconds.
Wed..Wind E to 10 kt...becoming nw with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 to 3 ft at 12 seconds.
Wed night..Wind nw 10 to 15 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft at 12 seconds.
Thu..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 2 ft or less...becoming 3 ft in the afternoon. SWell W 3 to 5 ft at 14 seconds.
Thu night..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. SWell W 5 to 6 ft at 15 seconds.
Fri..Wind sw 10 kt. Wind waves 2 ft or less. SWell W 4 to 7 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. SWell W 3 to 5 ft.
Sat..Wind variable less than 10 kt...becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 3 to 5 ft.
Sat night..Wind N 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. SWell W 3 to 4 ft.
Sun..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft.
Sun night..Wind N 10 kt...becoming ne after midnight. Wind waves 2 ft or less. SWell W 2 to 3 ft.
PZZ700 117 Pm Pst Tue Jan 23 2018
Synopsis for the far southern california coast.. At 1 pm, a 1022 mb high was near death valley and a 1018 mb low was just south of san diego. Weak offshore flow each morning will turn onshore each afternoon through Wednesday. Onshore flow will return and become strong with hazardous winds and combined seas Thursday afternoon and Thursday night. Winds and seas will subside Friday with weak offshore flow Saturday.

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 240539
afdsgx
area forecast discussion
national weather service san diego ca
930 pm pst Tue jan 23 2018

Synopsis
A santa ana weather pattern will bring another warm day Wednesday,
but the easterly winds in the mountains and foothills will be much
lighter than they were Tuesday. Thursday will be colder with more
clouds, a return to onshore flow, and gusty west winds to the
mountains and deserts. Cool again on Friday, then high pressure
building over the west will bring warmer weather and another round
of gusty santa ana winds over the weekend.

Discussion For extreme southwestern california including orange...

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

today was another warm southern california day with highs that were
8-10 degrees warmer than yesterday in the coastal and valley zones.

A couple of stations reached 80+ degrees including anaheim (81) and
san pasqual valley (80). The mountains were 5 to 7 degrees warmer
than yesterday. High pressure aloft will hang on for one more day,
and Wednesday will likely be a couple degrees higher than today.

On Wednesday night the ridge axis shifts east and the flow turns
onshore ahead of a energized pacific trough that will move across
central ca Thursday. This system will pass by too far north to bring
precip down here, but it will bring back low clouds and much cooler
weather. A shallow marine layer will move into the coastal zones
Wednesday night, then steadily deepen and move into the western
valleys Thursday morning. Thursday will be a noticeably cooler day
with 10-15 degrees of cooling in the coastal and valley zones, and 5-
10 degrees of cooling in the mountains and deserts. It will also
turn quite windy in the mountains and deserts in the afternoon and
evening.

Friday through Monday: cool again Friday, then warmer with another
santa ana weather pattern setting up over the weekend. A 1034 mb
surface high builds over utah Friday night, strengthens to a 1036 mb
high Saturday night, and peaks at 1037 mb Sunday night. This will
set up another moderate strength offshore wind event this weekend
with wind advisory potential in the mountains and foothills.

Temperatures will rise into the 70s west of the mountains Saturday,
and then into the 80s Sunday and Monday. Mountain highs will be in
the 50s and 60s, high desert highs around 70, and low deserts highs
will be in the 70s and 80s.

Aviation
240400z...VFR with a mostly clear sky will continue through
Wednesday evening. Any stratus along the coast is not expected until
perhaps late Wednesday night.

Marine
Northwest wind gusts of around 25 kt and combined seas of 7-10 ft
are likely Thursday afternoon through Thursday night as a low
pressure trough moves by to the north. A small craft advisory may be
needed through the period. Otherwise, no hazardous marine conditions
are forecast through Saturday.

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... Moede
aviation marine... Gregoria


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TIXC1 - Tijuana River Reserve, CA 66 mi55 min Calm 51°F 1021 hPa44°F
SDBC1 - 9410170 - San Diego, CA 76 mi40 min 64°F1020.6 hPa (+0.7)

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 mi47 minN 010.00 miFair54°F37°F55%1019.9 hPa

Wind History from SDM (wind in knots)
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Last 24hrNE4NE5NE4E5NE5E7SE6E6SE7E4NE4NE3NW44W6W7W8NW6NW4CalmCalmS4CalmCalm
1 day agoE5SE3E5E3E4E3SE3E4E6E4CalmNE3CalmW4W6NW7W8W9W115NW3NW3SE3E3
2 days agoSE6SE6SE4SE7SE8SE6SE8SE7SE7SE8SE7SE7S5Calm6W86W8W5W5NW3CalmCalmNE5

Tide / Current Tables for Ensenada, Baja California Norte, Mexico
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Ensenada
Click for Map
Wed -- 02:06 AM PST     1.29 meters High Tide
Wed -- 06:43 AM PST     Sunrise
Wed -- 08:43 AM PST     0.58 meters Low Tide
Wed -- 11:22 AM PST     Moonrise
Wed -- 02:02 PM PST     0.92 meters High Tide
Wed -- 02:20 PM PST     First Quarter
Wed -- 05:13 PM PST     Sunset
Wed -- 07:59 PM PST     0.44 meters Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.11.21.31.21.110.80.70.60.60.60.70.80.90.90.90.80.70.60.50.40.50.60.8

Tide / Current Tables for Imperial Beach, California
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Imperial Beach
Click for Map
Wed -- 02:24 AM PST     4.37 feet High Tide
Wed -- 06:47 AM PST     Sunrise
Wed -- 09:02 AM PST     1.79 feet Low Tide
Wed -- 11:24 AM PST     Moonrise
Wed -- 02:20 PM PST     First Quarter
Wed -- 02:34 PM PST     3.12 feet High Tide
Wed -- 05:14 PM PST     Sunset
Wed -- 08:21 PM PST     1.47 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.54.14.34.343.52.92.31.91.81.92.22.52.93.13.12.92.52.11.71.51.51.82.4

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for San Diego, CA (0,6,7,8)
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Ground Weather Radar Station San Diego, CA
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weather_mapweather_map weather_map

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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.