Monday, January22, 2018 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 6:42AMSunset 5:13PM Monday January 22, 2018 2:23 AM PST (10:23 UTC) Moonrise 11:12AMMoonset 11:33PM Illumination 31% Phase: Waxing Crescent; Moon at 6 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- 204 Am Pst Mon Jan 22 2018
Today..Wind ne 10 kt...becoming nw with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 to 3 ft at 12 seconds.
Tonight..Wind ne 10 kt. Gusts to 15 kt in the evening. Wind waves 2 ft or less. SWell W 3 to 4 ft at 15 seconds.
Tue..Wind ne to 10 kt...becoming nw 10 kt with gusts to 15 kt in the afternoon. Wind waves 2 ft or less. SWell W 1 to 4 ft at 14 seconds.
Tue night..Wind N 10 kt...becoming ne after midnight. Gusts to 15 kt. Wind waves 2 ft or less. SWell W 3 to 4 ft at 13 seconds.
Wed..Wind se to 10 kt...becoming nw 10 kt in the afternoon. Gusts to 15 kt. Wind waves 2 ft or less. SWell W 2 to 3 ft at 12 seconds.
Wed night..Wind nw 10 to 15 kt. Wind waves 2 ft or less... Becoming 3 ft after midnight. SWell W 2 ft.
Thu..Wind nw 15 to 20 kt with gusts to 30 kt. Wind waves 5 ft. SWell W 2 to 5 ft.
Thu night..Wind nw 15 to 20 kt with gusts to 30 kt. Wind waves 5 ft. SWell W 7 to 9 ft.
Fri..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 3 ft in the morning...becoming 2 ft or less. SWell W 5 to 7 ft.
Fri night..Wind nw 10 kt with gusts to 15 kt... Becoming ne after midnight. Wind waves 2 ft or less. SWell W 4 to 6 ft.
PZZ700 204 Am Pst Mon Jan 22 2018
Synopsis for the far southern california coast.. At 1 am, a 1034 mb high was over utah and a 1029 mb high was 800 nm west of san diego. A 1024 mb low was over ensenada mexico. Weak offshore flow each morning will turn onshore each afternoon through Wednesday. Onshore flow will return and become strong with hazardous winds and wind waves Thursday and Thursday night. Winds and waves will subside Friday.

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 220520
afdsgx
area forecast discussion
national weather service san diego ca
920 pm pst Sun jan 21 2018

Update
At 9 pm pst, water vapor satellite showed an upper-level trough
moving across northern california, with northwest flow aloft
across southern california. Lows overnight will be a few degrees
below normal, with patchy frost possible over some inland areas,
especially in the inland empire. Portions of the high desert will
dip into the upper 20s overnight, with some high elevation
mountain cities lowering into the teens. No updates needed to the
forecast this evening.

Synopsis
High pressure will bring dry weather with a significant warming
trend through Wednesday with gusty northeast winds near the
coastal foothills and below passes and canyons at times... And some
passing high clouds at times. A fast moving pacific low pressure
system will move inland through california on Thursday, bringing
cooling... Strong gusty west winds in the mountains and
deserts... And a chance of light precipitation. Dry with a warming
trend for Friday through next weekend as high pressure aloft will
strengthen near the west coast. Surface high pressure over the
great basin will bring periods of gusty northeast winds near the
coastal foothills and below passes and canyons.

Discussion For extreme southwestern california including orange...

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

Prev discussion from 232 pm this afternoon...

breezy offshore winds will develop late tonight and continue
through Monday morning near the coastal mountain slopes and
canyons with gusts around 15-25 mph in the most wind favored
locations. Light offshore gradients will continue Monday and
become a little stronger Tuesday and Wednesday with some isolated
wind gusts over 40 mph possible in the most wind favored
locations. In addition the combination of high pressure and
offshore flow will bring above normal temperatures Tuesday and
Wednesday with many locations likely to reach around 10
degrees... And in isolated locations 15 degrees above normal with a
few readings around 80 degrees possible in the inland valleys.

A vigorous upper level trough will bring some light precip to the
mountains, coast and valleys on Thursday, along with some strong
and gusty westerly winds which will likely reach advisory level in
wind favored locations.

Strong ridging next weekend with offshore flow developing again
and dry conditions with above normal temperatures likely once
again.

Aviation
220330z... Light winds, unrestricted visibility and sct-bkn aoa
20,000 ft msl through 06z Tuesday.

Marine
Hazardous marine conditions are not expected through Wednesday.

Thursday into Friday, a pacific storm system may bring another round
of strong northwest winds of 25 kts or more, accompanied by rough,
elevated seas.

Skywarn
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

Sgx watches warnings advisories
Ca... None.

Pz... None.

Update... Jjt
public... Brotherton
aviation marine... Albright


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 mi99 min ENE 1.9 47°F 1026 hPa39°F
SDBC1 - 9410170 - San Diego, CA 76 mi54 min 64°F1025.1 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 mi31 minE 410.00 miFair46°F37°F73%1024.2 hPa

Wind History from SDM (wind in knots)
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
2
AM
Last 24hrSE6SE8SE7SE7SE8SE7SE7S5Calm6W86W8W5W5NW3CalmCalmNE5E5SE3E5E3E4
1 day agoW10W11W10W7
G15
W12
G19
W11
G20
W13W16W13
G17
W10
G17
W10
G17
W10W11W7W5W6CalmCalmSE4SE6SE6SE4SE7SE8
2 days agoCalmE5NE4SE3S5S4CalmSW5W3W9W4W9W5W6CalmW33W9W4W6W7W7W7W8

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 -- 12:20 AM PST     1.17 meters High Tide
Mon -- 05:40 AM PST     0.66 meters Low Tide
Mon -- 06:44 AM PST     Sunrise
Mon -- 10:11 AM PST     Moonrise
Mon -- 11:27 AM PST     1.27 meters High Tide
Mon -- 05:11 PM PST     Sunset
Mon -- 06:19 PM PST     0.21 meters Low Tide
Mon -- 10:32 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.21.11.10.90.80.70.70.70.911.21.31.31.10.90.70.50.30.20.20.40.60.81

Tide / Current Tables for Imperial Beach, California
   EDIT      (on/off)   Help   One Week of Data
Imperial Beach
Click for Map
Mon -- 12:40 AM PST     4.00 feet High Tide
Mon -- 06:05 AM PST     2.12 feet Low Tide
Mon -- 06:48 AM PST     Sunrise
Mon -- 10:13 AM PST     Moonrise
Mon -- 11:52 AM PST     4.22 feet High Tide
Mon -- 05:12 PM PST     Sunset
Mon -- 06:36 PM PST     0.63 feet Low Tide
Mon -- 10:34 PM PST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.943.73.22.72.32.12.22.63.23.74.14.243.42.71.81.10.70.711.62.43.2

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 (5,6,7,8)
      (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.