Saturday, April20, 2019 L-36.com


Marine Weather and Tides
Coronado, CA

Version 3.4
What's New / NOTES
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 6:11AMSunset 7:23PM Saturday April 20, 2019 1:49 AM PDT (08:49 UTC) Moonrise 8:59PMMoonset 7:20AM Illumination 99% Phase: Full Moon; Moon at 16 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
    EDIT      (on/off)   Help
PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 152 Pm Pdt Fri Apr 19 2019
Tonight..Wind W 10 kt with gusts to 15 kt. Wind waves 2 ft or less. SWell W 3 to 4 ft at 13 seconds. SWell S 3 ft.
Sat..Wind W 10 to 15 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft at 12 seconds.
Sat night..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. SWell W 2 to 4 ft at 11 seconds. Slight chance of showers after midnight.
Sun..Wind W 10 to 15 kt with gusts to 20 kt. Wind waves 3 ft in the morning...becoming 2 ft or less. SWell W 4 to 6 ft at 9 seconds.
Sun night..Wind W 10 kt with gusts to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 4 to 5 ft at 9 seconds.
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.
Mon night..Wind S 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 ft.
Tue..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 to 3 ft.
Tue night..Wind S 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 2 ft.
Wed..Wind se 10 kt...becoming W with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 ft.
Wed night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft.
PZZ700 152 Pm Pdt Fri Apr 19 2019
Synopsis for the far southern california coast.. At 2 pm, a 1008 mb low was over the arizona-mexico border and a 1017 mb high was just northwest of point conception. Northwest winds of 12 to 18 kt will pick up this afternoon and evening, before dying off overnight. A small craft advisory has been issued for late Saturday night until Sunday morning for the outer coastal waters due to gusty northwest winds of 20-25 kt. There will also be a slight chance of showers late Saturday night into Sunday morning. Winds are expected to weaken on Sunday.


7 Day Forecast for Marine Location Near Coronado, CA
   Hourly   EDIT   Help
location: 32.72, -117.21     debug


Area Discussion for - San Diego, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksgx 200416
afdsgx
area forecast discussion
national weather service san diego ca
930 pm pdt Fri apr 19 2019

Synopsis
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
counties...

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.

Aviation
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
Saturday.

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.

Marine
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
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
banning.

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 Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SDBC1 - 9410170 - San Diego, CA 2 mi37 min 64°F1014.4 hPa
LJAC1 - 9410230 - La Jolla, CA 10 mi31 min 1014.1 hPa
LJPC1 - La Jolla, CA (073) 10 mi29 min W 6 G 9.9 2 ft
46254 11 mi51 min 62°F2 ft
46235 11 mi49 min 58°F3 ft
TIXC1 - Tijuana River Reserve, CA 11 mi64 min WNW 1.9 58°F 1015 hPa55°F
46258 16 mi19 min 62°F3 ft
46232 - Point Loma South, CA (191) 17 mi49 min 63°F4 ft
46225 - Torrey Pines Outer, CA (100) 18 mi49 min 62°F3 ft
46224 - Oceanside Offshore, CA (045) 35 mi49 min 62°F3 ft
46242 - Camp Pendleton Nearshore, CA (043) 37 mi51 min 60°F3 ft
46086 - San Clemente Basin 46 mi59 min W 9.7 G 14 57°F 62°F5 ft1014.7 hPa (+0.5)

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
(wind in knots)    EDIT      (on/off)   Help
Last
24hr
1 day
ago
2 days
ago

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
San Diego, North Island, Naval Air Station, CA1 mi57 minW 510.00 miOvercast59°F53°F81%1014.6 hPa
San Diego, San Diego International-Lindbergh Field, CA2 mi58 minWNW 410.00 miOvercast60°F53°F78%1015.3 hPa
San Diego, Montgomery Field, CA9 mi56 minW 410.00 miOvercast57°F52°F83%1014.4 hPa
Imperial Beach Naval Outlying Field - Ream Field, CA11 mi53 minWSW 510.00 miLight Rain59°F52°F78%1014.9 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA12 mi1.9 hrsW 310.00 miOvercast58°F52°F81%1013.7 hPa
Gillespie Field Airport, CA15 mi74 minN 010.00 miOvercast55°F51°F88%1014.6 hPa
San Diego, Brown Field Municipal Airport, CA16 mi56 minW 410.00 miOvercast56°F53°F90%1014.4 hPa

Wind History from NZY (wind in knots)
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
Last 24hrNW7NW9NW5N7CalmN4N3NW5NW6W12NW11NW12W13NW11NW12NW10NW10NW5NW7NW4CalmW3W5W5
1 day agoNW3NE5CalmN3E3CalmCalmSW54W8NW10NW11NW14NW11NW9W10NW8W65NW5NW4W6W3W7
2 days agoW5W4NW3CalmCalmCalmS3S4Calm4W7NW8W17W16
G21
NW12
G19
NW11NW11NW14NW10NE7N7N6N5N5

Tide / Current Tables for San Diego, San Diego Bay, California
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for San Diego Bay Entrance, California Current
   EDIT      (on/off)   Help   One Week of Data
San Diego Bay Entrance
Click for Map
Sat -- 01:51 AM PDT     -2.52 knots Max Ebb
Sat -- 05:16 AM PDT     0.00 knots Slack
Sat -- 06:13 AM PDT     Sunrise
Sat -- 07:19 AM PDT     Moonset
Sat -- 08:17 AM PDT     1.84 knots Max Flood
Sat -- 11:20 AM PDT     -0.00 knots Slack
Sat -- 02:07 PM PDT     -1.70 knots Max Ebb
Sat -- 05:00 PM PDT     0.00 knots Slack
Sat -- 07:22 PM PDT     Sunset
Sat -- 08:09 PM PDT     1.79 knots Max Flood
Sat -- 08:59 PM PDT     Moonrise
Sat -- 11:09 PM PDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
-1.5-2.3-2.5-2.1-1.3-0.30.71.51.81.71.20.3-0.6-1.4-1.7-1.5-0.900.91.51.81.61.10.2

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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 (4,6,7,8)
      (on/off)   Help

Ground Weather Radar Station San Diego, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.