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Marine Weather and Tides
Version 3.4 |
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 6:23AM | Sunset 7:46PM | Monday August 19, 2019 1:41 PM PDT (20:41 UTC) | Moonrise 9:18PM | Moonset 9:03AM | Illumination 82% |  |
PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 855 Am Pdt Mon Aug 19 2019
Today..Winds variable 10 kt or less, becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog in the morning.
Tonight..NW winds 10 to 20 kt. Wind waves 2 to 3 ft. NW swell 3 to 5 ft at 7 seconds. Patchy fog.
Tue..NW winds 10 to 15 kt, becoming 15 to 20 kt with gusts to 25 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 4 to 6 ft at 7 seconds. Patchy fog in the morning.
Tue night..NW winds 15 to 20 kt with gusts to 25 kt in the evening, becoming 10 to 15 kt. Wind waves 2 to 4 ft. NW swell 5 to 6 ft at 7 seconds, subsiding to 4 ft at 7 seconds after midnight. Patchy fog after midnight.
Wed..NW winds 10 to 15 kt, becoming 15 to 20 kt with gusts to 25 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 4 to 5 ft at 8 seconds. Patchy fog in the morning.
Wed night..NW winds 15 to 25 kt in the evening, becoming 10 to 20 kt. Combined seas 7 to 8 ft dominant period 7 seconds, subsiding to 5 to 7 ft dominant period 7 seconds after midnight.
Thu..NW winds 10 to 15 kt with gusts to 20 kt. Wind waves 1 to 3 ft. NW swell 5 to 7 ft. Patchy fog.
Fri..SW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft. Patchy fog.
Today..Winds variable 10 kt or less, becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog in the morning.
Tonight..NW winds 10 to 20 kt. Wind waves 2 to 3 ft. NW swell 3 to 5 ft at 7 seconds. Patchy fog.
Tue..NW winds 10 to 15 kt, becoming 15 to 20 kt with gusts to 25 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 4 to 6 ft at 7 seconds. Patchy fog in the morning.
Tue night..NW winds 15 to 20 kt with gusts to 25 kt in the evening, becoming 10 to 15 kt. Wind waves 2 to 4 ft. NW swell 5 to 6 ft at 7 seconds, subsiding to 4 ft at 7 seconds after midnight. Patchy fog after midnight.
Wed..NW winds 10 to 15 kt, becoming 15 to 20 kt with gusts to 25 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 4 to 5 ft at 8 seconds. Patchy fog in the morning.
Wed night..NW winds 15 to 25 kt in the evening, becoming 10 to 20 kt. Combined seas 7 to 8 ft dominant period 7 seconds, subsiding to 5 to 7 ft dominant period 7 seconds after midnight.
Thu..NW winds 10 to 15 kt with gusts to 20 kt. Wind waves 1 to 3 ft. NW swell 5 to 7 ft. Patchy fog.
Fri..SW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 4 to 5 ft. Patchy fog.
PZZ600 855 Am Pdt Mon Aug 19 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z, or 8 am pdt, a 1018 mb surface high was located about 700 nm northwest of point conception. A 1008 mb thermal low was centered near las vegas.
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 15z, or 8 am pdt, a 1018 mb surface high was located about 700 nm northwest of point conception. A 1008 mb thermal low was centered near las vegas.
7 Day Forecast for Marine Location Near Garey, CA
Hourly EDIT Helplocation: 34.9, -120.35 debug
Area Discussion for - Los Angeles/Oxnard, CA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 klox 191823 afdlox area forecast discussion national weather service los angeles oxnard ca 1123 am pdt Mon aug 19 2019 Synopsis 19 757 am. Temperatures will warm to above normal temperatures Wednesday and Thursday as high pressure moves into the area. Expect a slight cooling trend into Sunday. Overnight and morning low clouds and fog will diminish in coverage each day through Thursday, then will become more widespread beginning Friday. Short term (tdy-wed) 19 1031 am. Onshore flow is weakening across the area this morning as high pressure aloft over the texas panhandle is starting to build west. Low clouds and fog are starting to clear from the coast and valley areas this morning. Onshore flow will continue to weaken and the marine layer will thin tonight and into Tuesday morning. The marine layer depth near 2500 feet at klax should be cut at least in half tonight, likely settling to around 1000 feet deep tonight. Clouds will likely remain confined to the coast and lower valley areas, such as the san gabriel and santa ynez valleys. A warming trend will take shape the next several days as 500 mb heights climb and 1000-500 mb thickness values increase through Wednesday. ***from previous discussion*** a 3 to 4 mb offshore push from the north is forecast to quickly develop Tuesday night. There will only be weak onshore flow to the east. Marine layer stratus will be confined to the la south coast and the central coast. The ksba-ksmx grad peaks at -3.9 mb and this should be enough to bring wind advisory gusts to the sba south coast ESP west of the airport. The mdls have changed their tune for Wednesday. The upper high is no longer forecast to move to the west and in fact trof will be over the north half of the state. Hgts will still be high, there will be offshore flow from the north and minimal marine layer so it will still be a warm day but perhaps not as warm as previously thought. Long term (thu-sun) 19 326 am. Not much change on Thursday. Skies will be mostly sunny with very little in the way of low clouds. A little less offshore flow so the coasts and vlys will cool a little. Still MAX temps will be above normal across the interior. The GFS and ec disagree on the Friday through Sunday forecast. Both mdls agree that there will be some sort of weak upper high overhead with hgts near 592 dm. The big difference is with the sfc gradients. The GFS has mdt to strong onshore flow while the ec has much weaker onshore flow and even some offshore flow. The gfs solution would be cooler with more marine layer while the ec would be warmer and clearer. The ec is the big departure from previous so trended the fcst to the gfs. The tropical system forecast to spin near baja Friday through |
Monday is still there but it is weaker and right now does not look like it will have much impact on la county and north. Still tropical systems can be tricky and cannot take our eyes off of it. Aviation 19 1822z. At 1659z, the marine layer was around 2300 ft deep at klax. The top of the inversion was around 2900 ft with a temp of 21c. The marine layer depth ranged from 1400 feet on the central coast to 2300 feet on the south coast. The marine clouds will clear all taf sites in the next couple of hours. The marine layer depth is expected to shrink tonight to around 1100 feet for the entire coast. This should stop the marine clouds from pushing into the la valley TAF sites. The desert TAF sites will continue to have gusty winds in the afternoon. Klax... Moderate confidence in the 18z taf. There is a 20% chance that CIGS tonight will arrive as early as 06z. There is a 30% chance that CIGS tonight will be in the MVFR category instead of ifr. Kbur... Low to moderate confidence in the 18z taf. There is a 30% chance of lifr ifr CIGS after 09z tonight. Marine 19 952 am. For the outer waters, moderate to high confidence in current forecast. Small craft advisory (sca) level winds are expected to develop this afternoon and continue through at least late tue night, and possibly through late Thu night. There is a 30% chance of a period where winds drop below SCA levels late Tue night and wed morning. For the inner waters north of pt sal, only fair confidence in forecast beyond today. No SCA level conds are expected today. There is a 40-50% chance of SCA level winds during the afternoon and evening hours Tue through thu. For the inner waters south of point conception, SCA level conds are not expected through fri. The exception is across western portions of the SCA channel, where there is a 20-30% chance of sca level NW winds this evening, and SCA level NW winds are expected during the late afternoon through late night hours Tue and wed, Lox watches warnings advisories Ca... None. Pz... Small craft advisory in effect from 3 pm this afternoon to 3 am pdt Wednesday for zones 670-673-676. (see laxmwwlox). Hazard potential outlook (wed-sun) Hot temperatures could lead to heat advisories for some inland areas Wednesday and possibly Thursday. Otherwise, no significant hazards are expected through the period. Public... Hall rorke aviation... Sweet db marine... Sweet db synopsis... Phillips weather.Gov losangeles |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| PTGC1 - Point Arguello, CA | 27 mi | 42 min | N 16 G 17 | 59°F | 1016 hPa (+0.3) | |||
| CPXC1 | 28 mi | 32 min | W 14 G 18 | 63°F | 1003.2 hPa | 56°F | ||
| PSLC1 - 9412110 - Port San Luis, CA | 28 mi | 54 min | W 18 G 23 | 64°F | 58°F | 1017 hPa | ||
| 46215 - Diablo Canyon, CA (076) | 34 mi | 72 min | 58°F | 3 ft | ||||
| HRVC1 | 35 mi | 54 min | 60°F | 1016.7 hPa | ||||
| 46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA | 36 mi | 52 min | 60°F | 60°F | 4 ft | 1016.7 hPa (+0.3) | ||
| 46218 - Harvest, CA (071) | 38 mi | 42 min | 61°F | 4 ft | ||||
| 46054 - SANTA BARBARA W 38 NM West of Santa Barbara, CA | 44 mi | 62 min | 4 ft | |||||
| NTBC1 - Santa Barbara, CA - 9411340 | 49 mi | 66 min | SW 8.9 G 12 | 64°F | 1015.7 hPa |
Wind History for Port San Luis, CA
(wind in knots) EDIT (on/off) Help| 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 | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | |
| Last 24hr | S G11 | SW | SW G12 | W G17 | W | W | W | -- | NW | NW | -- | NW | -- | N | SE | N | N | SE | -- | SE | S | S | W G12 | W G21 |
| 1 day ago | SW G10 | S G11 | S G9 | S | SW G8 | W | W G12 | W G11 | NW | NE | -- | SE | W | -- | N | SW | W | SW | SE | SE | S | SE | SE | SE |
| 2 days ago | SW G13 | SW G11 | SW G14 | SW | W G13 | W G13 | W | W | -- | NE | -- | SE | SE | E | E | E | NE | W | SE | NW | -- | -- | S | SW |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Santa Maria Public Airport/Capt G Allan Hancock Field, CA | 5 mi | 51 min | W 9 | 10.00 mi | Mostly Cloudy | 72°F | 55°F | 57% | 1016.5 hPa |
| Lompoc, Vandenberg Air Force Base, CA | 16 mi | 1.8 hrs | N 7 | 10.00 mi | Mostly Cloudy | 65°F | 56°F | 72% | 1017.1 hPa |
| Lompoc, Lompoc Airport, CA | 17 mi | 46 min | W 9 G 15 | 10.00 mi | Fair | 70°F | 57°F | 64% | 1016.3 hPa |
Link to 5 minute data for KSMX
Wind History from SMX (wind in knots)
| 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 | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | |
| Last 24hr | NW G15 | NW | NW | NW | NW | NW | NW | NW | Calm | NW | Calm | Calm | Calm | Calm | NW | W | W | W | Calm | Calm | Calm | N | W | |
| 1 day ago | NW | NW | NW | W | NW | NW | NW | NW | NW | NW | NW | NW | W | W | Calm | Calm | Calm | NW | W | NW | W | W | ||
| 2 days ago | NW | NW | NW | NW | NW | NW | NW | W | Calm | Calm | Calm | Calm | W | SW | Calm | S | Calm | SW | SE | Calm | Calm | W | W | NW |
Tide / Current Tables for Avila, California
EDIT Weekend mode (on/off) (on/off) Help One Week of DataAvila
Click for Map
Mon -- 12:01 AM PDT 1.72 feet High Tide
Mon -- 06:25 AM PDT Sunrise
Mon -- 06:51 AM PDT -2.02 feet Low Tide
Mon -- 10:04 AM PDT Moonset
Mon -- 01:23 PM PDT 1.24 feet High Tide
Mon -- 07:06 PM PDT -0.73 feet Low Tide
Mon -- 07:46 PM PDT Sunset
Mon -- 10:18 PM PDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 12:01 AM PDT 1.72 feet High Tide
Mon -- 06:25 AM PDT Sunrise
Mon -- 06:51 AM PDT -2.02 feet Low Tide
Mon -- 10:04 AM PDT Moonset
Mon -- 01:23 PM PDT 1.24 feet High Tide
Mon -- 07:06 PM PDT -0.73 feet Low Tide
Mon -- 07:46 PM PDT Sunset
Mon -- 10:18 PM PDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| 1.7 | 1.5 | 1 | 0.3 | -0.6 | -1.4 | -1.9 | -2 | -1.8 | -1.2 | -0.4 | 0.3 | 0.9 | 1.2 | 1.2 | 0.9 | 0.4 | -0.2 | -0.6 | -0.7 | -0.6 | -0.3 | 0.2 | 0.8 |
Tide / Current Tables for Port San Luis Wharf, California
EDIT (on/off) Help One Week of DataPort San Luis Wharf
Click for Map
Mon -- 12:17 AM PDT 4.92 feet High Tide
Mon -- 06:25 AM PDT Sunrise
Mon -- 06:56 AM PDT 0.82 feet Low Tide
Mon -- 10:04 AM PDT Moonset
Mon -- 01:19 PM PDT 4.42 feet High Tide
Mon -- 07:07 PM PDT 2.01 feet Low Tide
Mon -- 07:46 PM PDT Sunset
Mon -- 10:18 PM PDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 12:17 AM PDT 4.92 feet High Tide
Mon -- 06:25 AM PDT Sunrise
Mon -- 06:56 AM PDT 0.82 feet Low Tide
Mon -- 10:04 AM PDT Moonset
Mon -- 01:19 PM PDT 4.42 feet High Tide
Mon -- 07:07 PM PDT 2.01 feet Low Tide
Mon -- 07:46 PM PDT Sunset
Mon -- 10:18 PM PDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| 4.9 | 4.8 | 4.3 | 3.5 | 2.5 | 1.6 | 1 | 0.8 | 1.1 | 1.7 | 2.5 | 3.4 | 4.1 | 4.4 | 4.3 | 3.9 | 3.3 | 2.7 | 2.2 | 2 | 2.1 | 2.6 | 3.2 | 3.8 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
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 Los Angeles/Oxnard, CA (16,3,4,5)
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Ground Weather Radar Station Vandenberg AFB, CA
(on/off) Help
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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. |