Marine Weather and Tides
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
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|Sunrise 5:43AM||Sunset 7:47PM||Tuesday May 23, 2017 1:46 AM PDT (08:46 UTC)||Moonrise 4:21AM||Moonset 5:32PM||Illumination 6%|
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|PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 122 Pm Pdt Mon May 22 2017 |
Tonight..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 2 ft at 10 seconds and S 2 to 3 ft at 15 seconds. Areas of dense fog with vsby 1 nm or less after midnight.
Tue..Wind nw 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 10 seconds and S 2 to 3 ft at 14 seconds. Areas of dense fog with vsby 1 nm or less in the morning.
Tue night..Wind W to 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 ft at 9 seconds and sw 2 to 3 ft at 14 seconds.
Wed..Wind W to 10 kt...becoming 10 to 15 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 ft at 11 seconds and sw 2 to 3 ft at 16 seconds.
Wed night..Wind W 10 to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 13 seconds and sw 2 to 3 ft at 16 seconds.
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 sw 2 ft.
Thu night..Wind W 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 2 ft. Slight chance of showers after midnight.
Fri..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 sw 2 ft. Slight chance of showers in the morning.
Fri night..Wind nw 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 ft and sw 2 ft.
Sat..Wind W 10 to 15 kt. Gusts to 20 kt in the afternoon. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 1 ft and sw 1 to 2 ft.
Sat night..Wind W 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 1 ft.
|PZZ700 122 Pm Pdt Mon May 22 2017 |
Synopsis for far southern california coast.. At 1 pm...a 1018 mb high was 70 nm west of the mendocino county coast and a 1008 mb low was 40 nm northwest of blythe. Dense fog will likely occur over the coastal waters tonight into Tuesday morning. Weak to moderate onshore flow will continue through Saturday...with northwest gusts to 20 kt possible in the outer waters each late afternoon and early evening.
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 230419|
area forecast discussion
national weather service san diego ca
919 pm pdt Mon may 22 2017
Another hot day is anticipated Tuesday as a ridge of high
pressure along the west coast stregthens slightly. The coachella
valley should see it's warmest day of the year with afternoon
highs in the 109-112 degree range. A sharp cooling trend will
arrive during the second half of the workweek as a trough of low
pressure traverses the region. Inland areas can expect afternoon
highs 10-20 degrees below seasonal averages by Friday. Quiet
weather and a weak cooling trend are forecast for the upcoming
Discussion For extreme southwestern california including orange...
san diego... Western riverside and southwestern san bernardino
at 900 pm, weak ridging was in place over socal, with a shortwave
trough moving through the intermountain west. The trough was
bringing a quick burst of high clouds region. West of the
mountains the 00z nkx sounding indicated a marine layer with a
depth at or just below 1,000 ft msl. The marine layer stratus deck
was returning rapidly along the coast.
Tonight and Tuesday morning, the main concern will be areas of fog
within 10 miles of the coast. Compared to last night, the marine
layer is about 500 ft shallower. Given this, areas of dense fog
are possible over the coastal mesas, and along portions of
interstates 5, 8, 405, and 805 during the morning commute. At this
time confidence in widespread dense fog is to low for the
issuance of a dense fog advisory, will allow the overnight shift
to monitor/reevaluate with the morning forecast package. Any fog
that develops is expected to lift by 9 am.
For Tuesday afternoon, the focus shifts to another day of
unseasonably hot conditions, as the ridge along the west coast
stregthens. Inland areas will receive the brunt of the heat, with
afternoon highs forecast to be 8-16 degrees above seasonal
averages. The coast will be shielded by a shallow marine layer.
This will be the hottest day of the year thus far in the coachella
valley, where afternoon highs will be in the the 109-112 range.
An excessive heat warning was considered, but not issued due to
the short duration of this event.
A cooling trend will arrive for the second half of the workweek as
a weak shortwave trough undercuts the ridge of high pressure|
along the west coast. By Friday, inland temperatures will fall to
10-18 degrees below seasonal averages, a 10-25 degree drop from
Tuesday's highs. Outside of the welcome decline in temperatures,
there are two other features to keep and eye on during the second
half of the week. The first feature is a weak impulse that will
rotate around the base of the trough Wednesday afternoon. Model
guidance suggests very modest CAPE of 100-500 j/kg, mainly for
the san gabriel mtns and points north. This could bring a few
afternoon cumulus buildups for these areas and potentially the san
bernardino mtns if the track shifts slightly southeast. The
second feature will be the main shortwave as it moves inland,
producing a rapidly deepening of the marine layer Thursday night
into Friday morning. At this time sub 850 moisture and marine
layer depth look sufficient for a few light sprinkles/drizzle
during this period. Gusty winds will also develop Thursday and
Friday for the deserts slopes and deserts, with wind advisory
strength winds possible.
Next weekend, weak ridging is forecast to return over california
during this period. For our area this will bring a warming trend
and shallower/less persistent marine layer. By Sunday afternoon
temperatures should be near seasonal averages under fair skies.
230325z... Coast/valleys... Stratus with bases 600-800 ft msl filling
in along the coast through 06z then spreading 10-15 sm inland
overnight. Bases may lower to around 300-500 ft msl by morning,
producing widespread vis of 5sm or less along the coast and areas of
vis 1/2 sm or less over higher coastal terrain and on coastal mesas,
including at kcrq. Stratus clearing to the immediate coast 17-19z,
with low clouds lingering along the beaches through the afternoon.
Stratus may return to ksan and kcrq at times 21-02z, though
confidence is low. Stratus spreading back inland after 24/02z with
bases near 500-800 ft msl.
Mountains/deserts... Sct clouds AOA 20000 ft msl and unrestricted
vis through Tue evening.
A shallower marine layer may bring locally dense fog with visibility
near 1 nm to the coastal waters tonight into Tuesday morning, and
possibly again Tuesday evening.
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||61 min||WSW 1||60°F||1016 hPa||58°F|
|IIWC1 - 9410172 - USS Midway South Navy Pier, San Diego, CA||13 mi||70 min||NNW 5.1 G 6||60°F|
|SDBC1 - 9410170 - San Diego, CA||13 mi||46 min||70°F||1015 hPa (+0.0)|
|46232 - Point Loma South, CA (191)||15 mi||35 min||65°F||4 ft|
|LJAC1 - 9410230 - La Jolla, CA||24 mi||46 min||NNW 4.1 G 5.1||64°F||64°F||1014.2 hPa (+0.0)|
|LJPC1 - La Jolla, CA (073)||24 mi||86 min||NNW 2.9||2 ft|
|46258||24 mi||46 min||65°F||4 ft|
|46254||24 mi||58 min||68°F||2 ft|
|46225 - Torrey Pines Outer, CA (100)||31 mi||55 min||65°F||3 ft|
|46224 - Oceanside Offshore, CA (045)||48 mi||46 min||65°F||4 ft|
|46086 - San Clemente Basin||48 mi||56 min||WNW 9.7 G 14||56°F||62°F||4 ft||1014.7 hPa (+0.0)|
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 Auxiliary Landing Field, CA||4 mi||50 min||N 0||10.00 mi||Overcast||60°F||57°F||90%||1015 hPa|
|San Diego, Brown Field Municipal Airport, CA||9 mi||53 min||N 0||3.00 mi||Fog/Mist||59°F||57°F||96%||1014.4 hPa|
|San Diego, North Island, Naval Air Station, CA||12 mi||54 min||WNW 4||10.00 mi||Overcast||62°F||57°F||84%||1014.6 hPa|
|San Diego, San Diego International-Lindbergh Field, CA||14 mi||55 min||N 3||10.00 mi||Overcast||63°F||59°F||87%||1015.3 hPa|
|San Diego, Montgomery Field, CA||21 mi||53 min||NNW 4||4.00 mi||Fog/Mist||60°F||55°F||86%||1014.5 hPa|
|San Diego/El Cajon, Gillespie Field Airport, CA||23 mi||71 min||WNW 5||10.00 mi||Fair||59°F||55°F||88%||1014.9 hPa|
|San Diego, Miramar MCAS/Mitscher Field Airport, CA||24 mi||51 min||Var 3||3.00 mi||Fog/Mist||63°F||57°F||81%||1014.2 hPa|
Wind History from NRS (wind in knots)
|1 day ago|
|2 days ago|
EDIT RT Ports Option Weekend mode (on/off) (on/off)  Help One Week of Data
|Imperial Beach |
Click for Map
Tue -- 02:21 AM PDT -0.36 feet Low Tide
Tue -- 04:20 AM PDT Moonrise
Tue -- 05:45 AM PDT Sunrise
Tue -- 08:28 AM PDT 4.35 feet High Tide
Tue -- 02:01 PM PDT 0.55 feet Low Tide
Tue -- 05:31 PM PDT Moonset
Tue -- 07:45 PM PDT Sunset
Tue -- 08:24 PM PDT 6.21 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
Tue -- 02:50 AM PDT 0.00 knots Slack
Tue -- 04:21 AM PDT Moonrise
Tue -- 05:45 AM PDT Sunrise
Tue -- 05:49 AM PDT 1.65 knots Max Flood
Tue -- 08:45 AM PDT -0.00 knots Slack
Tue -- 11:37 AM PDT -1.74 knots Max Ebb
Tue -- 02:29 PM PDT 0.00 knots Slack
Tue -- 05:31 PM PDT Moonset
Tue -- 05:45 PM PDT 1.98 knots Max Flood
Tue -- 07:46 PM PDT Sunset
Tue -- 08:46 PM PDT -0.00 knots Slack
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 (4,6,7,8)(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.