Wednesday, June28, 2017 L-36.com


Marine Weather and Tides
Imperial Beach, 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 5:42AMSunset 8:01PM Wednesday June 28, 2017 12:10 AM PDT (07:10 UTC) Moonrise 10:44AMMoonset 11:50PM Illumination 18% Phase: Waxing Crescent; Moon at 4 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
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PZZ750 Coastal Waters From San Mateo Point To The Mexican Border And Out To 30 Nm- 133 Pm Pdt Tue Jun 27 2017
Tonight..Wind W to 10 kt with gusts to 15 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 6 seconds and S 2 to 3 ft at 13 seconds.
Wed..Wind W 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 7 seconds and sw 1 to 2 ft at 15 seconds.
Wed night..Wind W 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 7 seconds and sw 2 ft at 17 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 to 3 ft at 7 seconds and sw 2 ft at 17 seconds.
Thu night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft at 8 seconds and sw 2 ft at 16 seconds.
Fri..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 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 2 to 3 ft.
Sat..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell W 2 to 3 ft and sw 2 ft.
Sat night..Wind S 10 kt. Wind waves 2 ft or less. Mixed swell W 2 ft and sw 2 ft.
Sun..Wind variable less than 10 kt...becoming sw 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 2 ft...becoming N to 2 ft in the afternoon. SWell sw 2 ft.
Sun night..Wind variable less than 10 kt. Wind waves 2 ft or less. Mixed swell W 1 to 2 ft and S 2 ft.
PZZ700 133 Pm Pdt Tue Jun 27 2017
Synopsis for the far southern california coast..At 1 pm, a 1004 mb low was near needles and a 1030 mb high was about 870 nm west of salem oregon. Moderate to locally strong onshore flow will bring northwest winds near 20 to 25 kt near san clemente island this evening. Areas of fog are expected tonight into Wednesday morning but visibility should remain above 1 mile. Weaker onshore flow will return Wednesday through Saturday.

7 Day Forecast for Marine Location Near Imperial Beach city, CA
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location: 32.53, -117.14     debug


Area Discussion for - San Diego, CA
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Fxus66 ksgx 280414
afdsgx
area forecast discussion
national weather service san diego ca
914 pm pdt Tue jun 27 2017

Synopsis
Stronger onshore flow will bring a cooling trend through Thursday
with high temperatures returning to near average for Wednesday and
Thursday. Low clouds and fog will return to coastal areas tonight,
and spread into some valleys into Thursday morning. Slightly warmer
Friday under weak high pressure, then seasonal summer weather
prevailing through the holiday weekend.

Discussion For extreme southwestern california including orange...

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

satellite imagery this evening showed clear skies prevailing over
socal once again, but marine clouds were gathering over the bight
and spreading toward the coast. The 00z miramar sounding had a weak
inversion based near 1500 ft msl and weak west winds below 3k ft.

The inversion was about 300 ft higher than last night, and the
inversion top was 5 degrees c lower than yesterday at 00z. Surface
pressure gradients showed good onshore trends, continuing to support
westerly winds of 15-25 mph with peak gusts of 35-45 mph through
wind-prone mtn pass desert areas.

A red flag warning remains in effect from the mtn crests, east into
the deserts of riverside and san diego counties. No forecast changes
this evening, cooling is on track.

From previous discussion...

temperatures are a few degrees lower at 1 pm today than they were
yesterday at this time, except for the lower desert. A brand new
marine layer has come off the factory floor (along the central
coast), and this shiny new marine layer will drive into the southern
california showroom tonight. This appears to be in response to a
shortwave moving by to our north, which has also flattened out the
monster ridge responsible for our recent heat. The relaxed intensity
of the high will help the intense heat take a chill pill in the
interior away from the marine layer, and the marine layer cruising
into southern california will take care of the cooling west of the
mountains. Daytime temperatures will be noticeably lower Wednesday
and Thursday, especially west of the mountains. This new low cloud
deck is not a dense fog deck as was its predecessor at the coast
this morning. As the new coastal clouds move ashore, there might be
dense fog briefly on coastal mesas and hills, but true fog with low
visibility will not be an issue at the coast itself. As it moves
ashore this evening it should deepen overnight enough to spread into
western valleys. For the coming week, the stagnant summertime
pattern will have only very minor fluctuations between the influence
of a weak ridge or a weak trough over southern california. Right now
we see relatively cool Wednesday and Thursday followed by a slightly
warmer Friday and Saturday, a cooler Sunday and Monday, and a warmer
fourth of july. The coastal clouds will make it into some of the
westernmost inland valleys during the nights.

Aviation
280400z... Coast valleys... Stratus will gradually develop tonight
over coastal areas, spreading into some valleys, to 15-25 miles
inland by 12z wed. Bases will be 800-1100 ft msl with tops to 1500
ft msl. Kcrq will have a cig very soon with ksan likely by 06z and
ksna around 08z. Local vis below 1 mile will occur in some coastal
valleys, including vcnty krnm mainly 10z-15z. Most areas will clear
15z-18z wed, with stratus returning early Wed night.

Mountains deserts... Clear skies with unrestricted vis will prevail
through Wed evening. West winds gusting 30-40 kt will occur over and
east of the mountains through 12z wed, producing llws and mdt
up downdrafts over and east of the mountains.

Marine
No hazardous marine conditions are expected through Sunday.

Fire weather
Very low rh will continue over the deserts and desert slopes of the
mountains through Wednesday with slight recovery Thursday. Winds
will become more localized however, limiting the areas and periods
of critical fire weather conditions, and confining them largely to
the deserts where fuel is limited. So the red flag will be allowed
to expire late tonight.

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

Sgx watches warnings advisories
Ca... Red flag warning until 1 am pdt Wednesday for coachella valley-
including the palm springs south coast desert district-
riverside county mountains-including the san jacinto ranger
district of the san bernardino national forest-san diego
county deserts-including the anza borrego desert state park-
san diego county mountains-including the palomar and
descanso ranger districts of the cleveland national forest-
san gorgonio pass near banning.

Pz... None.

Public... Jad mm
fire... Jad
aviation marine... Maxwell


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TIXC1 - Tijuana River Reserve, CA 3 mi85 min NW 2.9 62°F 1013 hPa61°F
IIWC1 - 9410172 - USS Midway South Navy Pier, San Diego, CA 13 mi40 min NW 5.1 G 6 63°F
SDBC1 - 9410170 - San Diego, CA 13 mi40 min 69°F1012.3 hPa
46232 - Point Loma South, CA (191) 15 mi29 min 66°F5 ft
LJAC1 - 9410230 - La Jolla, CA 24 mi40 min Calm G 1 64°F 58°F1011.4 hPa
LJPC1 - La Jolla, CA (073) 24 mi50 min 3 ft
46258 24 mi40 min 69°F4 ft
46254 24 mi52 min 69°F3 ft
46225 - Torrey Pines Outer, CA (100) 31 mi49 min 67°F4 ft
46224 - Oceanside Offshore, CA (045) 48 mi40 min 65°F3 ft
46086 - San Clemente Basin 48 mi80 min WNW 14 G 18 65°F5 ft1012.2 hPa (+0.8)

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Imperial Beach Naval Outlying Field - Ream Field, CA4 mi14 minW 310.00 miFair63°F59°F87%1012.4 hPa
San Diego, Brown Field Municipal Airport, CA9 mi17 minW 39.00 miFair61°F60°F97%1011.7 hPa
San Diego, North Island, Naval Air Station, CA12 mi18 minNW 410.00 miA Few Clouds64°F59°F84%1011.8 hPa
San Diego, San Diego International-Lindbergh Field, CA14 mi19 minVar 39.00 miMostly Cloudy65°F61°F87%1012.5 hPa
San Diego, Montgomery Field, CA21 mi17 minN 010.00 miFair65°F60°F84%1011.7 hPa
Gillespie Field Airport, CA23 mi15 minN 010.00 miFair64°F59°F83%1012.2 hPa
San Diego, Miramar MCAS/Mitscher Field Airport, CA24 mi15 minWSW 46.00 miA Few Clouds with Haze62°F55°F78%1011.3 hPa

Wind History from NRS (wind in knots)
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Last 24hrSW4CalmCalmSW4SW3CalmCalmW3W7W7W9W10W9W9W9W8W9W9W7W5W5W7NW7W3
1 day agoCalmCalmCalmE6E4CalmNW3W5SW13SW13SW12SW10SW7W6W8SW8SW8SW7W5SW3CalmCalmE4Calm
2 days agoNW6NW5NW5NW5NW4NW6NW6NW9NW10W10W11W9W11NW11NW12NW10NW11NW8W5W5SW4CalmSW3Calm

Tide / Current Tables for Imperial Beach, California
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Imperial Beach
Click for Map
Wed -- 12:42 AM PDT     5.46 feet High Tide
Wed -- 05:43 AM PDT     Sunrise
Wed -- 07:42 AM PDT     -0.51 feet Low Tide
Wed -- 10:44 AM PDT     Moonrise
Wed -- 02:32 PM PDT     4.41 feet High Tide
Wed -- 07:53 PM PDT     2.19 feet Low Tide
Wed -- 08:00 PM PDT     Sunset
Wed -- 11:50 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.35.454.12.81.50.3-0.4-0.5-00.81.933.94.34.443.42.82.32.22.42.93.6

Tide / Current Tables for San Diego Bay Entrance, California Current
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San Diego Bay Entrance
Click for Map
Wed -- 12:56 AM PDT     -0.00 knots Slack
Wed -- 04:34 AM PDT     -2.05 knots Max Ebb
Wed -- 05:43 AM PDT     Sunrise
Wed -- 08:15 AM PDT     0.00 knots Slack
Wed -- 10:44 AM PDT     Moonrise
Wed -- 11:31 AM PDT     1.41 knots Max Flood
Wed -- 02:51 PM PDT     -0.00 knots Slack
Wed -- 05:20 PM PDT     -0.93 knots Max Ebb
Wed -- 08:00 PM PDT     Sunset
Wed -- 08:11 PM PDT     0.00 knots Slack
Wed -- 11:13 PM PDT     0.85 knots Max Flood
Wed -- 11:50 PM PDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.6-0-0.8-1.5-2-2-1.6-1-0.20.51.11.41.41.10.5-0.1-0.6-0.9-0.9-0.5-0.10.40.70.8

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for San Diego, CA (3,6,7,8)
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Ground Weather Radar Station San Diego, CA
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weather_mapweather_map weather_map

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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.