Tuesday, July23, 2019 L-36.com


Marine Weather and Tides
Potrero, CA

Version 3.4
NOTICE
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 5:55AMSunset 7:50PM Tuesday July 23, 2019 6:06 AM PDT (13:06 UTC) Moonrise 12:00AMMoonset 11:54AM Illumination 61% Phase: Waning Gibbous; Moon at 21 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- 226 Am Pdt Tue Jul 23 2019
Today..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 2 ft at 16 seconds.
Tonight..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 2 ft at 16 seconds.
Wed..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 2 ft at 16 seconds.
Wed night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 9 seconds and S 2 to 3 ft at 15 seconds.
Thu..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 ft at 9 seconds and S 3 to 4 ft at 15 seconds.
Thu night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and S 3 to 4 ft.
Fri..Wind variable less than 10 kt...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 3 to 4 ft.
Fri night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 3 ft.
Sat..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 S 3 ft.
Sat night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and S 2 to 3 ft.
PZZ700 226 Am Pdt Tue Jul 23 2019
Synopsis for the far southern california coast.. At 2 am pdt, a 1011 mb low was over imperial county and a 1016 mb high was just south of the channel islands. A weak coastal eddy will develop at times in the mornings, with mostly light onshore flow developing in the afternoons.


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 231147
afdsgx
area forecast discussion
national weather service san diego ca
447 am pdt Tue jul 23 2019

Synopsis
Through Thursday, high pressure centered near the four corners
will maintain a flow of monsoonal moisture into southern
california. There will be scattered thunderstorms in the mountains
each day from late morning through early evening with smaller
chances elsewhere and at other times. High pressure will be
centered over southern california for the weekend. This will bring
some drying and inland warming, decreasing thunderstorm chances
for Friday into the weekend. Monsoonal moisture may return the
early to middle part of next week.

Discussion For extreme southwestern california including orange...

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

Short term (today through Thursday)
High pressure aloft will remain centered near the four corners
through Wednesday, then move slowly towards the south on
Wednesday. This will maintain the flow of monsoonal moisture into
portions of southern california.

Overnight, there have been some sprinkles and a few light
measurable amounts from bands of mid level showers moving
northward across portions of southwest california. This will
continue into this morning. Some thunderstorms have also developed
over northern baja. These may move into southern san diego county
early this morning as shown by the hrrr.

Higher precipitable water values, of around 1.8 to 1.9 inches,
will remain entrenched across the lower deserts into Thursday.

Lower level moisture remains shallow. Dewpoints in the lower 70s
extend as far north as the southern coachella valley, but with
dewpoints in the northern coachella valley in the 50s.

Scattered thunderstorms will continue in the mountains the next
few days, mainly during the late morning through early evening
hours with smaller chances and lesser coverage in the deserts and
inland valleys. High temperatures will remain around average.

Night and morning coastal low clouds will be patchy and not extend
inland much past some coastal areas.

Long term (Friday through Monday)
High pressure centered over southern arizona on Friday will be
centered across southern california and northern baja for the
weekend. This will bring some drying. Thunderstorm chances will be
decreasing on Friday. That drying along with warming and
subsidence aloft will most likely result in afternoon clouds near
the mountains, but no thunder, for the weekend. With drying of
lower level moisture, lower desert high temperatures should warm
to above 110, generally around 5 degrees above average.

For early next week, the center of high pressure may migrate back
towards the four corners with slight weakening of the high
pressure as well. This should bring a return of monsoonal moisture
for the early to middle part of next week.

Aviation
231000... Coast valleys... Stratus is slow to develop this morning due
to some virga and mid high clouds moving across the area. Low
clouds, with bases 800-1000 ft msl are currently patchy over the
coastal waters, but could develop along portions of the coast over
the next few hours as the mid and high clouds move out of the
region. Confidence is increasing that coastal and valley aerodromes
will remain free of low clouds through the morning. A few -shra will
develop across the region this morning.

Mountains deserts... Debris mid and high clouds from old
thunderstorms will continue across the area through the morning,
along with isolated -shra. Sct-bkn clouds AOA 10000 ft msl expected
to form this afternoon and evening with isolated tsra possible over
the mountains and desert mountain slopes. Gusty surface winds, small
hail, strong up downdrafts and frequent lightning are all possible
near storms.

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... 17
aviation marine... Jjt


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 mi82 min NNW 1.9 66°F 1015 hPa64°F
SDBC1 - 9410170 - San Diego, CA 76 mi55 min 70°F1013.6 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 mi74 minN 010.00 miFair65°F62°F90%1013.8 hPa

Wind History from SDM (wind in knots)
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
3
AM
4
AM
5
AM
6
AM
Last 24hr3CalmCalm3W6NW7W8W8W9W5W9W8CalmCalmCalmW5W4CalmCalmW3CalmCalmCalmCalm
1 day agoN3N3566W8W9W10NW7W9NW9W8NW5W5W4W5W5W3CalmCalmW4W4CalmCalm
2 days agoN334Calm4NW8W8W76W10W8W9W9W7W5W5W3CalmCalmCalmNW3CalmCalmCalm

Tide / Current Tables for Ensenada, Baja California Norte, Mexico
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Ensenada
Click for Map
Tue -- 12:57 AM PDT     1.17 meters High Tide
Tue -- 05:56 AM PDT     Sunrise
Tue -- 07:49 AM PDT     0.34 meters Low Tide
Tue -- 11:53 AM PDT     Moonset
Tue -- 02:46 PM PDT     1.19 meters High Tide
Tue -- 07:49 PM PDT     Sunset
Tue -- 08:49 PM PDT     0.72 meters Low Tide
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
1.11.21.110.80.70.50.40.30.40.50.70.91.11.21.21.110.90.80.70.70.80.8

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


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 (9,2,3,4)
      (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.