Marine Weather and Tides
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 6:42AM||Sunset 4:46PM||Saturday December 16, 2017 10:49 AM PST (18:49 UTC)||Moonrise 6:11AM||Moonset 5:00PM||Illumination 3%|
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|PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 228 Am Pst Sat Dec 16 2017 |
Today..Wind sw 10 kt with gusts to 15 kt... Becoming S to 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 3 to 5 ft at 15 seconds. Slight chance of showers in the afternoon.
Tonight..Wind ne to 10 kt. Gusts to 15 kt after midnight. Wind waves 2 ft or less. SWell W 4 to 6 ft at 12 seconds.
Sun..Wind ne 10 to 15 kt...becoming nw in the afternoon. Wind waves 3 ft in the morning...becoming 2 ft or less. SWell W 2 to 5 ft at 13 seconds.
Sun night..Wind ne 10 kt with gusts to 15 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft at 12 seconds.
Mon..Wind E to 10 kt...becoming W in the afternoon. Gusts to 15 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft at 12 seconds.
Mon 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 1 to 2 ft.
Tue..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 1 to 2 ft.
Tue night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft.
Wed..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 1 to 2 ft.
Wed night..Wind W 10 kt. Gusts to 15 kt in the evening. Wind waves 3 ft in the evening...becoming 2 ft or less. SWell W 1 to 4 ft.
|PZZ700 228 Am Pst Sat Dec 16 2017 |
Synopsis for the far southern california coast.. At 2 am, a 1035 mb high was 500 nm west of eureka, california, and a 1007 mb low was near death valley. Onshore flow will occur today under a trough of low pressure, but then offshore flow will return tonight through Tuesday except for northwest winds during the afternoons. Weak onshore flow will return Wednesday.
7 Day Forecast for Marine Location Near Imperial Beach city, CAHourly EDIT Help
Area Discussion for - San Diego, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 ksgx 161612|
area forecast discussion
national weather service san diego ca
811 am pst Sat dec 16 2017
A trough of low pressure moving through southern california today
will bring stronger onshore flow with cooling... More clouds... And
perhaps a few showers over western san diego county. Gusty westerly
winds will turn back offshore on Sunday as surface high pressure
builds south over the great basin. Very dry air will return, along
with strong northeast wind gusts through and below some passes and
canyons. For Wednesday and Thursday, another low pressure system
moving through the great basin will bring strong onshore flow again,
with cooling, more clouds, and higher humidity. Winds will be strong
and gusty over the mountains and deserts. Moderate to strong
offshore flow may return again late Thursday into Friday.
Discussion For extreme southwestern california including orange...
san diego... Western riverside and southwestern san bernardino
skies were mostly cloudy across the forecast area this morning as a
sheet of high clouds drifted from NW to SE above lower marine clouds
surging inland. Surface pressure gradients were weak but showed
strong onshore trends. A few spots in the mountains already had sw
wind gusts of 25 mph or more, however most areas reported light
winds. Dewpoints remained very low, even at the coast. A narrow mid-
level front with moderate radar returns was moving from NW to se
across the area with a few sprinkles snow showers. The higher mtn
resorts have indicated some trace amounts of snow from this early
today. The 12z miramar sounding indicated cooling with increasing
westerly winds at 25 to 50 kts, but still exceedingly dry.
Expecting the onshore flow today will boost dewpoints, resulting in
more comfortable rh values through tonight. We are also watching for
possible convective development over the ca bight as mid-level cold
advection and increasing spin aloft spike instability. Most of the
model suite this morning all show some precip developing today over
the water. San diego proper will have the best chance for measuring
some rainfall if this activity develops. Otherwise the forecast is
From previous discussion...
Short term (today through Monday)
A trough of low pressure is moving through southern california
early this morning. This will bring stronger onshore flow with
significant cooling... More clouds... And gusty southwest to west
winds in the mountains and deserts. For inland coastal areas... The
valleys... And the mountains... High temperatures today will be 15
to 20 degrees cooler than on Friday... 10 to 15 degrees cooler
towards the coast and in the upper deserts... And 5 to 10 degrees
cooler in the lower deserts. A brief return of lower level
moisture will bring slight chances for light showers... Mainly for
central and southern coastal areas of san diego for late morning
into the afternoon with any rainfall a few hundredths of an inch
The flow will turn offshore for tonight and Sunday with stronger
and gusty north to northeast winds developing along and below
coastal mountain slopes and below passes and canyons for portions
of san bernardino... Riverside... And orange counties for late
tonight into Sunday morning with gusts to 50 mph and isolated
gusts to 60 mph. Weaker northeast winds will spread into the
mountains and inland valleys in san diego county on Sunday. Winds
will weaken and become more localized for Sunday night and
Monday. High temperatures for coastal and valley areas will warm
on Sunday while the mountains and deserts continue to cool. The
warming will spread inland on Monday.
Long term (Tuesday through Friday)
Warmer with weaker winds for Tuesday with weakening high pressure
aloft over california. A low pressure system off the pacific
northwest coast on Tuesday... Will move into the pacific northwest
early Wednesday... And into the great basin late Wednesday and
Wednesday night. For southern california... This will bring
stronger onshore flow with cooling for Wednesday into
Thursday... A possible return of the marine layer with night and
morning coastal low clouds and fog... And strong gusty west winds
in the mountains and deserts for Wednesday and Wednesday night.|
For Thursday into Friday... Upper level low pressure to the east
and surface high pressure over the great basin will bring periods
of moderate to strong northeast winds. There remain differences
with the location and strength of that upper level low pressure
among the global models along with the duration and strength of
the offshore flow. The ECMWF is weaker with the offshore flow
along with lesser duration of the offshore flow. The ECMWF also
advertises deamplification of the high amplitude pattern across
the mid latitudes of the eastern pacific and north america for
early the week of christmas. In between for next weekend... The
differences across southern california are significant with some
global models maintaining closed upper level low pressure over
the southwest states and the ECMWF developing upper level high
pressure from the subtropical eastern pacific into california.
161600z... Areas of stratus with bases 1200-1800 ft msl and tops to
4000 ft. Stratus is already clearing into orange county and a slow
clearing trend will continue from NW to SE through early this
evening. A few -shra is possible near kcrq and especially ksan this
After 05z tonight, most areas will be clear, but locally gusty
northeast winds 15-30 knots with gusts 35-45 knots will develop
along southwest mountain slopes and through below passes and
canyons, continuing Monday morning. Lighter winds will occur in san
Combined seas could reach 8-9 feet in the outer waters tonight, just
below small craft advisory criteria, due to a wnw swell around 12
seconds. Winds will increase out of the NE tonight with the highest
winds of 15-20 kt over the offshore waters towards san clemente
Onshore flow will bring increasing rh and gusty westerly winds over
the mts deserts today. Offshore flow will return late tonight and
Sunday as surface high pressure builds south over the great basin.
Northeast winds 15 to 30 mph with gusts 40 to locally 55 mph are
expected to return across portions of san bernardino... Riverside...
and orange counties late tonight. Strongest winds are expected on
Sunday morning. Farther south across san diego county... Winds will
generally be weaker with peak gusts 35 to 40 mph on the wind-prone
coastal slopes on Sunday, peaking Sunday evening. Rh will drop to
around 15% on Sunday resulting in marginal red flag conditions for
several hours, mainly northern areas. Rh values will drift higher
Sunday evening into Monday as the winds ease.
Another round of moderate to strong northeast winds is possible for
Thursday into Friday with low inland humidity.
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.
Sgx watches warnings advisories
Ca... Fire weather watch from Sunday morning through Sunday evening
for san diego county inland valleys-san diego county
mountains-including the palomar and descanso ranger
districts of the cleveland national forest.
Red flag warning from 8 am to 8 pm pst Sunday for orange county
coastal areas-orange county inland areas-riverside county
mountains-including the san jacinto ranger district of the
san bernardino national forest-san bernardino county
mountains-including the mountain top and front country
ranger districts of the san bernardino national forest-san
bernardino and riverside county valleys -the inland empire-
san gorgonio pass near banning-santa ana mountains-
including the trabuco ranger district of the cleveland
Public... Jad 17
fire weather... Jad
aviation marine... Gregoria
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|TIXC1 - Tijuana River Reserve, CA||3 mi||64 min||SSW 5.1||60°F||1009 hPa|
|SDBC1 - 9410170 - San Diego, CA||13 mi||49 min||64°F||1007.7 hPa (-1.0)|
|46232 - Point Loma South, CA (191)||15 mi||68 min||64°F||6 ft|
|LJPC1 - La Jolla, CA (073)||24 mi||89 min||SE 4.1||3 ft|
|LJAC1 - 9410230 - La Jolla, CA||24 mi||49 min||SSE 5.1 G 7||62°F||67°F||1006.6 hPa (-0.9)|
|46254||24 mi||91 min||62°F||3 ft|
|46258||24 mi||49 min||62°F||4 ft|
|46225 - Torrey Pines Outer, CA (100)||31 mi||58 min||62°F||4 ft|
|46224 - Oceanside Offshore, CA (045)||48 mi||49 min||62°F||3 ft|
|46086 - San Clemente Basin||48 mi||59 min||W 7.8 G 9.7||61°F||63°F||6 ft||1006.8 hPa (-1.1)|
Wind History for USS MIDWAY South Navy Pier, San Diego, CA(wind in knots) EDIT (on/off)  Help
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports
|Imperial Beach Naval Outlying Field - Ream Field, CA||4 mi||1.9 hrs||SW 8||8.00 mi||Mostly Cloudy||60°F||52°F||75%||1008.6 hPa|
|San Diego, Brown Field Municipal Airport, CA||9 mi||56 min||S 7||9.00 mi||Partly Cloudy||60°F||53°F||78%||1007.8 hPa|
|San Diego, North Island, Naval Air Station, CA||12 mi||57 min||S 8||10.00 mi||Mostly Cloudy||62°F||55°F||80%||1006.9 hPa|
|San Diego, San Diego International-Lindbergh Field, CA||14 mi||58 min||SSE 10||9.00 mi||Mostly Cloudy||61°F||55°F||81%||1007.6 hPa|
|San Diego, Montgomery Field, CA||21 mi||56 min||SE 9||7.00 mi||Mostly Cloudy||62°F||52°F||70%||1007.1 hPa|
|Gillespie Field Airport, CA||23 mi||62 min||N 0||10.00 mi||Mostly Cloudy||52°F||24°F||35%||1007.8 hPa|
|San Diego, Miramar MCAS/Mitscher Field Airport, CA||24 mi||54 min||SE 8||9.00 mi||Mostly Cloudy||64°F||52°F||65%||1006.6 hPa|
Wind History from NRS (wind in knots)
|1 day ago||W||W||W||NW||NW||NW||SW||S||Calm||E||NE||E||E||E||NE||E||NE||NE||NE||E||E||N||N|
|2 days ago||W||W||W||W||Calm||W||W||Calm||S||N||Calm||N||E||E||E||E||E||NE||E||E||E||E||E||W |
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Imperial Beach |
Click for Map
Sat -- 01:25 AM PST 1.62 feet Low Tide
Sat -- 05:11 AM PST Moonrise
Sat -- 06:43 AM PST Sunrise
Sat -- 07:45 AM PST 5.98 feet High Tide
Sat -- 02:42 PM PST -0.53 feet Low Tide
Sat -- 04:00 PM PST Moonset
Sat -- 04:44 PM PST Sunset
Sat -- 09:02 PM PST 3.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
EDIT (on/off)  Help One Week of Data
|San Diego Bay Entrance |
Click for Map
Sat -- 01:54 AM PST 0.00 knots Slack
Sat -- 05:11 AM PST Moonrise
Sat -- 05:17 AM PST 1.55 knots Max Flood
Sat -- 06:44 AM PST Sunrise
Sat -- 08:07 AM PST -0.00 knots Slack
Sat -- 11:32 AM PST -2.26 knots Max Ebb
Sat -- 03:18 PM PST 0.00 knots Slack
Sat -- 04:00 PM PST Moonset
Sat -- 04:44 PM PST Sunset
Sat -- 06:16 PM PST 1.47 knots Max Flood
Sat -- 09:15 PM PST -0.00 knots Slack
Sat -- 11:44 PM PST -1.10 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images(on/off)  Help
|Weather Map ||IR Satellite Image from GEOS|
GOES Local Image of Southwest EDIT
Wind Forecast for San Diego, CA (13,3,4,5)(on/off)  Help
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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.