Marine Weather and Tides
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.
|Sunrise 6:11AM||Sunset 7:23PM||Saturday April 20, 2019 1:49 AM PDT (08:49 UTC)||Moonrise 8:59PM||Moonset 7:20AM||Illumination 99%|
7 Day Forecast for Marine Location Near Coronado, CAHourly EDIT Help
Area Discussion for - San Diego, CA  (on/off)  Help NOTE: mouseover dotted underlined text for definition
|Fxus66 ksgx 200416|
area forecast discussion
national weather service san diego ca
930 pm pdt Fri apr 19 2019
A pair of troughs will move over southern california this weekend,
ramping up the onshore flow and the marine layer. Gusty west winds
will accompany these systems over the mountains and deserts, and a
few light showers may develop as well, especially western san diego
county. Cooler this weekend, then warmer next week as high pressure
builds aloft and onshore winds weaken and trend offshore, sending
temperatures back above average.
Discussion For extreme southwestern california including orange...
san diego... Western riverside and southwestern san bernardino
areas of marine layer stratus were spreading inland about 20 miles
by mid-evening, and with the marine inversion base around 1200 feet
based on aircraft soundings at san and sna. The marine layer should
deepen some overnight given the pressure height falls aloft and much
stronger onshore flow, now 7-8 mb from san to the lower deserts.
There could even be local drizzle by morning, though probably not
any measurable rain until late Saturday night, and even that should
be just a few hundredth of an inch. A few locations on the desert
mountain slopes and far northern coachella valley have already had
gusts around 35-45 mph this evening, and that should increase to 45-
55 mph Saturday afternoon and night, with local WRF model showing
moderately strong winds in the central and southern coachella valley
then as well.
From previous discussion...
a weak upper-level trough is on track to move inland across socal
tonight, followed by another, more dynamic system from the northwest
on Saturday night. These systems will conspire to increase westerly
winds and build the marine layer inland to the coastal slopes. As it
deepens, some light showers could develop, especially in san diego
county (along and west of the mts) Sat night. Once the second trough
passes, a third system form the north will drop south through the
great basin Sunday night, tightening up the onshore gradient one
more time late Sunday Sunday night, before the gradient relaxes and
trends offshore late Monday Tuesday morning.
The overall onshore gradient these systems will generate will keep
gusty winds over the mts deserts, and below average temperatures
through the weekend. A warming trend will begin as the gradient
relaxes and trends offshore. Coastal warming is more uncertain as
there is a suggestion of an eddy developing over the ca bight, which
could hold the marine layer there into early next week. As the week
progresses, a strong eastpac ridge is forecast to expand along the|
west coast before collapsing late next week. Warming looks more
certain for the midweek period when MAX temps should be 5-10f above
average most areas.
The main concern over the next few days will be the wind. Given the
support indicated, a wind advisory has been posted for Sat afternoon
through early Sunday over the mts deserts when the strongest winds
are likely from the ridges, along the deserts slopes and into
adjacent desert areas. Winds will decrease some after Sunday
morning, but remain gusty from the northwest to north, through
Sunday night into early Monday as the upper low digs over the great
basin. While some light precip could fall Sat night, amounts look
negligible at this time.
200310z... Coast valleys... Bkn-ovc010-020 in the coastal zones
spreading into the valleys through 15z, reaching kont and ksbd
between 09-13z. Skies clearing back to the coast through 18z
Mountains... Mostly clear with no vis restrictions through Saturday.
West winds 15-20 kt gusting to 35 kt over the mountains tonight
increasing to 20-30 kt gusting to 40 kt after 18z Saturday.
Deserts... After 20z Saturday... Nw winds 15-25kt gusting to 30 kt at
kpsp and ktrm with areas of blowing dust.
A small craft advisory will be in effect over the outer waters from
10 pm Saturday to 9 am Sunday for NW winds 10-15 kt gusting 20-25 kt
and combined seas of 7-8 ft. Winds will weaken Sunday afternoon.
There is a slight chance of showers late Saturday night into Sunday
morning. No marine concerns are expected after Sunday.
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.
Sgx watches warnings advisories
Ca... Wind advisory from 2 pm Saturday to 6 am pdt Sunday for apple
and lucerne valleys-coachella valley-riverside county
mountains-san bernardino county mountains-san diego county
deserts-san diego county mountains-san gorgonio pass near
Pz... Small craft advisory from 10 pm Saturday to 9 am pdt Sunday for
waters from san mateo point to the mexican border extending
30 to 60 nm out including san clemente island.
Public... Maxwell 10
aviation marine... Moede
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|
|SDBC1 - 9410170 - San Diego, CA||2 mi||37 min||64°F||1014.4 hPa|
|LJAC1 - 9410230 - La Jolla, CA||10 mi||31 min||1014.1 hPa|
|LJPC1 - La Jolla, CA (073)||10 mi||29 min||W 6 G 9.9||2 ft|
|46254||11 mi||51 min||62°F||2 ft|
|46235||11 mi||49 min||58°F||3 ft|
|TIXC1 - Tijuana River Reserve, CA||11 mi||64 min||WNW 1.9||58°F||1015 hPa||55°F|
|46258||16 mi||19 min||62°F||3 ft|
|46232 - Point Loma South, CA (191)||17 mi||49 min||63°F||4 ft|
|46225 - Torrey Pines Outer, CA (100)||18 mi||49 min||62°F||3 ft|
|46224 - Oceanside Offshore, CA (045)||35 mi||49 min||62°F||3 ft|
|46242 - Camp Pendleton Nearshore, CA (043)||37 mi||51 min||60°F||3 ft|
|46086 - San Clemente Basin||46 mi||59 min||W 9.7 G 14||57°F||62°F||5 ft||1014.7 hPa (+0.5)|
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
|San Diego, North Island, Naval Air Station, CA||1 mi||57 min||W 5||10.00 mi||Overcast||59°F||53°F||81%||1014.6 hPa|
|San Diego, San Diego International-Lindbergh Field, CA||2 mi||58 min||WNW 4||10.00 mi||Overcast||60°F||53°F||78%||1015.3 hPa|
|San Diego, Montgomery Field, CA||9 mi||56 min||W 4||10.00 mi||Overcast||57°F||52°F||83%||1014.4 hPa|
|Imperial Beach Naval Outlying Field - Ream Field, CA||11 mi||53 min||WSW 5||10.00 mi||Light Rain||59°F||52°F||78%||1014.9 hPa|
|San Diego, Miramar MCAS/Mitscher Field Airport, CA||12 mi||1.9 hrs||W 3||10.00 mi||Overcast||58°F||52°F||81%||1013.7 hPa|
|Gillespie Field Airport, CA||15 mi||74 min||N 0||10.00 mi||Overcast||55°F||51°F||88%||1014.6 hPa|
|San Diego, Brown Field Municipal Airport, CA||16 mi||56 min||W 4||10.00 mi||Overcast||56°F||53°F||90%||1014.4 hPa|
Wind History from NZY (wind in knots)
|1 day ago||NW||NE||Calm||N||E||Calm||Calm||SW||W||NW||NW||NW||NW||NW||W||NW||W||NW||NW||W||W||W|
|2 days ago||W||W||NW||Calm||Calm||Calm||S||S||Calm||W||NW||W||W|
EDIT Weekend mode (on/off) (on/off)  Help One Week of Data
EDIT (on/off)  Help One Week of Data
Weather Map and Satellite Images(on/off)  HelpWeather Map
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 (4,6,7,8)(on/off)  Help
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