Monday, August21, 2017 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 6:14AMSunset 7:23PM Monday August 21, 2017 6:35 PM PDT (01:35 UTC) Moonrise 6:06AMMoonset 7:35PM Illumination 0% Phase: New Moon; Moon at 29 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- 141 Pm Pdt Mon Aug 21 2017
Tonight..Wind nw 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft at 9 seconds and S 2 ft at 12 seconds.
Tue..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 1 to 2 ft at 9 seconds and S 2 ft at 12 seconds.
Tue night..Wind nw 10 to 15 kt. Gusts to 20 kt in the evening. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and sw 2 ft at 11 seconds.
Wed..Wind nw 10 to 15 kt. Wind waves 2 ft or less...becoming 3 ft in the afternoon. Mixed swell W 2 ft at 6 seconds and sw 2 ft at 11 seconds.
Wed night..Wind nw 10 to 15 kt in the evening... Becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 6 seconds and sw 2 ft at 11 seconds.
Thu..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 2 ft.
Thu night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and sw 2 ft.
Fri..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 1 to 2 ft.
Fri night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 1 ft.
Sat..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 1 ft.
Sat night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 1 ft.
PZZ700 141 Pm Pdt Mon Aug 21 2017
Synopsis for the far southern california coast.. At 1 pm pdt, a 1017 mb high was over the channel islands, and a 1009 mb low was 50 nm west-southwest of needles. Weak onshore flow will continue through Saturday, except for briefly stronger winds late Tuesday and late Wednesday.

7 Day Forecast for Marine Location Near Potrero, CA
   Hourly   EDIT   Help
location: 31.69, -116.65     debug


Area Discussion for - San Diego, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 ksgx 212147
afdsgx
area forecast discussion
national weather service san diego ca
247 pm pdt Mon aug 21 2017

Synopsis
A weak low pressure system off the southern california coast will
keep high temperatures a few degrees below normal through
Wednesday... With areas of low clouds with patchy fog late tonight
and Tuesday morning and again Tuesday night and Wednesday morning.

There will be gradual warming to near normal high temperatures
for Wednesday through Friday... With high pressure over the great
basin bringing additional warming with 5 to 10 degrees above
normal for next weekend into the following early week.

Discussion For extreme southwestern california including orange...

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

for the remainder of the afternoon and early evening, there
remains a slight chance of showers and thunderstorms over the
higher mountain peaks of riverside and san bernardino counties
and the high desert of san bernardino county... Due to the western
extent of a modest monsoonal moisture plume. A decent cumulus
field has developed this afternoon in those areas. Chances for
convection will quickly end after dark this evening.

The troughy pattern along the coast will continue through Tuesday
with continued unseasonably deep marine layer influence. Low
pressure will weaken Wednesday through Friday, bringing a weaker
marine layer, and gradual warming trend to near-normal.

High pressure ridging will develop late in the weekend and into
early the following week, bringing some additional warming to a
bit above normal conditions, especially for inland locations. In
addition, some return mid level monsoonal flow will develop and
may eventually bring another chance of convection to the
mountains and deserts, although not enough confidence yet to add
to the extended forecast.

Aviation
211954z... Coast valleys... Through 22 0000 utc, p6sm vis and few
clouds AOA 10000 ft msl. 22 0000-1500 utc, stratus will re-develop
and move inland 15-20 sm, with bases around 1200-1700 ft msl, tops
around 1800-2200 ft msl, and areas of vis 3-5 sm along higher
coastal terrain mesas. Stratus may move in slower than the previous
night. Forecast marine layer inversion strength of around 7 deg c at
22 1200 utc. Elsewhere, p6sm vis and few clouds AOA 10000 ft msl.

Mountains deserts... Few-sct clouds AOA 10000 ft msl and p6sm vis
through Tuesday morning.

Marine
No hazardous marine weather is expected 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... Brotherton
aviation marine... Harrison


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
TIXC1 - Tijuana River Reserve, CA 66 mi110 min WNW 6 74°F 1016 hPa65°F
SDBC1 - 9410170 - San Diego, CA 76 mi47 min 75°F1014.7 hPa

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, Brown Field Municipal Airport, CA64 mi42 minW 910.00 miFair72°F63°F73%1013.9 hPa

Wind History from SDM (wind in knots)
7
PM
8
PM
9
PM
10
PM
11
PM
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
Last 24hrW7W5W4W4CalmCalmCalmW3CalmCalmCalmCalmCalmCalmCalm4NW63NW6W9
G15
W8
G14
W9W9W9
1 day agoW6W4W3W4CalmCalmCalmCalmCalm3CalmCalmCalmW3CalmNW3--6W7W10W10
G14
W9W7NW6
2 days agoW6W5W5CalmCalmCalmCalmCalmCalmCalmNE3E3CalmW3CalmCalm3W56W9W10NW7NW9W7

Tide / Current Tables for Ensenada, Baja California Norte, Mexico
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Ensenada
Click for Map
Mon -- 03:36 AM PDT     -0.28 meters Low Tide
Mon -- 06:06 AM PDT     Moonrise
Mon -- 06:15 AM PDT     Sunrise
Mon -- 09:54 AM PDT     1.43 meters High Tide
Mon -- 11:31 AM PDT     New Moon
Mon -- 03:17 PM PDT     0.36 meters Low Tide
Mon -- 07:23 PM PDT     Sunset
Mon -- 07:34 PM PDT     Moonset
Mon -- 09:26 PM PDT     1.94 meters High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.90.40-0.2-0.3-0.10.30.71.11.41.41.31.10.80.50.40.40.611.41.71.91.91.7

Tide / Current Tables for Imperial Beach, California
   EDIT      (on/off)   Help   One Week of Data
Imperial Beach
Click for Map
Mon -- 03:54 AM PDT     -1.11 feet Low Tide
Mon -- 06:07 AM PDT     Moonrise
Mon -- 06:16 AM PDT     Sunrise
Mon -- 10:15 AM PDT     5.08 feet High Tide
Mon -- 11:31 AM PDT     New Moon
Mon -- 03:42 PM PDT     1.04 feet Low Tide
Mon -- 07:26 PM PDT     Sunset
Mon -- 07:37 PM PDT     Moonset
Mon -- 09:53 PM PDT     6.61 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.920.4-0.8-1.1-0.60.51.93.44.55.14.94.131.91.21.11.62.745.46.36.66.1

Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for San Diego, CA (21,6,7,8)
      (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.