Friday, December13, 2019
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Marine Weather and Tides
Boulevard, CA

Version 3.4
NOTICE
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.
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 6:38AMSunset 4:43PM Friday December 13, 2019 2:05 PM PST (22:05 UTC) Moonrise 7:19PMMoonset 9:01AM Illumination 95% Phase: Waning Gibbous; Moon at 17 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- 154 Pm Pst Fri Dec 13 2019
.small craft advisory in effect from late tonight through Sunday afternoon...
Tonight..Wind W to 10 kt in the evening...becoming variable less than 10 kt. Wind waves 2 ft or less. SWell W 3 to 6 ft at 17 seconds.
Sat..Wind W to 10 kt...becoming 10 to 20 kt in the afternoon. Wind waves 2 ft or less...becoming 3 to 4 ft in the afternoon. SWell W 3 to 6 ft at 16 seconds.
Sat night..Wind nw 10 to 20 kt. Wind waves 4 ft. SWell nw 6 to 8 ft at 8 seconds. Slight chance of showers in the evening.
Sun..Wind nw 10 to 15 kt with gusts to 20 kt. Wind waves 4 ft. SWell W 5 to 8 ft at 9 seconds.
Sun night..Wind N to 10 kt...becoming E 10 kt with gusts to 15 kt after midnight. Wind waves 2 ft or less...becoming 3 ft after midnight. SWell W 4 to 6 ft at 9 seconds.
Mon..Wind variable less than 10 kt...becoming ne 10 kt in the afternoon. Wind waves 2 ft or less. SWell W 3 to 4 ft.
Mon night..Wind ne 10 kt. Wind waves 2 ft or less. SWell W 2 to 4 ft.
Tue..Wind E 10 kt. Wind waves 2 ft or less. SWell nw 2 to 3 ft.
Tue night..Wind E 10 kt. Wind waves 2 ft or less. SWell W 1 to 2 ft.
Wed..Wind E 10 kt. Wind waves 2 ft or less. SWell W 1 to 3 ft.
Wed night..Wind variable less than 10 kt. Wind waves 2 ft or less. SWell W 1 to 3 ft. Slight chance of rain.
PZZ700 154 Pm Pst Fri Dec 13 2019
Synopsis for the far southern california coast.. West to northwest winds will become strong on Saturday. Wind gusts of 25 to 35 kts are likely Saturday evening through Sunday morning, with the strongest winds over the outer coastal waters. A small craft advisory has been issued for all of the coastal waters. Widespread combined seas of 8 to 12 ft are expected tonight through Sunday.


7 Day Forecast for Marine Location Near Boulevard, CA
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location: 32.67, -116.31     debug


Area Discussion for - San Diego, CA
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FXUS66 KSGX 131713 AAA AFDSGX

Area Forecast Discussion National Weather Service San Diego CA 900 AM PST Fri Dec 13 2019

SYNOPSIS. High pressure will bring warm weather today. A trough moving through California this weekend will bring cool weather along with gusty winds in the mountains and deserts, and also for the coastal waters. There will be a chance of light showers Saturday afternoon/night, except in the deserts. Offshore flow will bring gusty northeast winds Monday and Tuesday. The next chance of rain appears Wednesday and Thursday.

DISCUSSION. FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE . SAN DIEGO . WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO COUNTIES .

Morning Update:

Low clouds and fog were patchy along the coast this morning, and now dissipating, except for in northern Orange County, where the fog and low clouds are being slow to dissipate. Do expect that area of low clouds and fog to dissipate by 11 am. No major updates to the forecast this morning. Temperatures will be the warmest of the week today with widespread readings about 10 degrees above normal.

Previous forecast discussion:

A chunk of low clouds extends from L.A. into OC this morning while some other coastal clouds simply lurk just off the coast. It might be a little murky in spots in OC this morning, but today should be mostly sunny across the region overall. High pressure peaks today and the warm air mass and abundant sunshine will make today the warmest in the coming week. Coastal clouds will make an early move ashore late this afternoon and evening. A trough of low pressure moving into the West Coast will tamp down the high pressure and prop up a pretty deep marine layer Saturday. It will be somewhat blustery and raw. Later in the day there will be some light showers in that enhanced marine layer, most likely in foothills where up to a quarter inch could add up Saturday afternoon through Saturday night. Coastal areas get a few hundredths. Winds will strengthen Saturday, with gusts along isolated mountain ridgetops and desert slopes that could top 60 mph, but most gusts will range between 35-55 mph. A dry cold front sweeps through the region early Sunday morning, decreasing the winds and sweeping out the clouds. The cooler post frontal air will make Sunday the coolest in the coming week. Offshore flow develops late Sunday and peaks Monday through Tuesday. Guidance keeps waffling on the strength and duration of these offshore winds, but some foothills should get gusts over 30 mph. The eastern Pacific is chaotic and the jet stream is not a solid driver of systems at this time. Most guidance including ensembles shows some attempt to bring in an overall wet pattern later next week, but the attempts of any individual systems to bring us meaningful rain are not convincing. Case in point, yesterday GFS was dry, Euro was wet. Today? GFS is wet, Euro is dry. We pulled out the broad brush to indicate some chances of the wet stuff late Wednesday into Thursday.

AVIATION.

131700Z . Coast . Patchy fog and low clouds will linger near the coast through 18Z. Mostly clear skies are expected after 18-19Z, with low clouds/fog likely returning after 06Z Sat, with higher bases.

Valleys/Mountains/Deserts . SCT clouds above 20000 ft MSL with unrestricted vis through tonight. Low clouds could arrive in some valley locations by late this evening.

MARINE. A large, west northwest swell with a period of 15-17 seconds will likely combine with a fresh swell with a period of 7-9 seconds to produce combined seas of 9 to 12 ft through Sunday. West northwest winds will increase over the outer coastal waters tonight through Saturday night. Winds will peak Saturday night into Sunday morning with gusts 25 to 30 knots, and locally to 35 knots near San Clemente Island. A gale watch has been issued 6 PM Sat to 10 AM Sun over the waters 30-60 NM offshore. The combination of the winds and swells will create hazardous boating conditions for mariners Saturday through Sunday.

BEACHES. A west northwest swell with a period of 15-17 seconds will bring elevated to high surf and strong rip currents to the beaches through Sunday, peaking late Friday/early Saturday. Current projections are for 5-8 foot surf with local sets to 9 feet along the San Diego County beaches with slightly lower values for the Orange County beaches. High tides over 6 feet along with the surf may cause local beach erosion.

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

SGX WATCHES/WARNINGS/ADVISORIES. CA . High Surf Advisory until 4 PM PST Sunday for Orange County Coastal Areas-San Diego County Coastal Areas.

PZ . Gale Watch from Saturday evening through Sunday morning for Waters from San Mateo point to the Mexican Border Extending 30 to 60 nm out including San Clemente Island.



PUBLIC . MM/JMB AVIATION/MARINE/BEACHES . JMB


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
TIXC1 - Tijuana River Reserve, CA 44 mi80 min WNW 6 63°F 1020 hPa59°F
46235 46 mi35 min 61°F7 ft
SDBC1 - 9410170 - San Diego, CA 46 mi59 min 62°F1018.1 hPa

Wind History for USS MIDWAY South Navy Pier, San Diego, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Campo, CA9 mi73 minSW 14 mi72°F43°F35%1016.2 hPa

Link to 5 minute data for KNJK

Wind History from NJK (wind in knots)
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Last 24hrCalmE3NE3E3CalmCalmW5W7W5W7CalmSW3--SW4W4SW4W4SW4SW3SW4CalmCalmCalm3
1 day agoCalmCalmCalmCalmCalmW7SW8W4SW3SW3W5W6SW6NW6NW3CalmSW3W3SW4CalmCalm3N4N5
2 days agoCalmN4CalmE4E3CalmW6W6W7W5W5W7NW3CalmCalmW4SW4W5W43N44NW43

Tide / Current Tables for National City, San Diego Bay, California
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National City
Click for Map
Fri -- 03:03 AM PST     2.03 feet Low Tide
Fri -- 06:41 AM PST     Sunrise
Fri -- 08:04 AM PST     Moonset
Fri -- 09:15 AM PST     7.03 feet High Tide
Fri -- 04:37 PM PST     -1.06 feet Low Tide
Fri -- 04:43 PM PST     Sunset
Fri -- 06:22 PM PST     Moonrise
Fri -- 11:01 PM PST     4.21 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.62.92.322.334.25.46.576.864.62.91.2-0.2-0.9-1-0.40.723.23.94.2

Tide / Current Tables for Imperial Beach, California
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_P
GEOS 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 (17,4,5,8)
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Ground Weather Radar Station San Diego, CA
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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.