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Marine Weather and Tides
Version 3.4 |
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 6:05AM | Sunset 8:12PM | Tuesday July 25, 2017 9:46 PM PDT (04:46 UTC) | Moonrise 7:39AM | Moonset 9:03PM | Illumination 7% |  |
Marine Forecasts
EDIT (on/off) Help| PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 815 Pm Pdt Tue Jul 25 2017 Tonight..Winds variable 10 kt or less. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog after midnight. Wed..Winds variable 10 kt or less...becoming W 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. Wed night..NW winds 10 to 15 kt in the evening...becoming 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog after midnight. Thu..Winds variable 10 kt or less...becoming nw 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog in the morning. Thu night..NW winds 10 to 15 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 3 to 4 ft at 9 seconds. Patchy fog after midnight. Fri..Winds variable 10 kt or less...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. Mixed swell nw 4 to 5 ft at 8 seconds and S 3 ft at 17 seconds. Patchy fog in the morning. Fri night..W winds 10 to 20 kt in the evening...becoming nw 10 to 15 kt. Wind waves 1 to 3 ft. Mixed swell nw 4 to 5 ft at 8 seconds and S 3 to 4 ft at 16 seconds. Patchy fog after midnight. Sat..W winds 10 to 15 kt. Wind waves 2 ft or less. Mixed swell nw 3 to 5 ft and S 3 to 4 ft. Patchy fog. Sun..W winds 5 to 10 kt. Wind waves 2 ft or less. Mixed swell nw 3 to 4 ft and S 3 to 4 ft. Patchy fog. | PZZ600 815 Pm Pdt Tue Jul 25 2017 Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 03z...or 8 pm pdt...1031 mb surface high pressure was centered 600 nm miles west of eureka and a 1009 mb thermal low was near needles. This pattern will change little through Thursday. |
7 Day Forecast for Marine Location Near Cayucos, CA
Hourly EDIT Helplocation: 35.43, -120.88 debug
Area Discussion for - Los Angeles/Oxnard, CA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 klox 260407 afdlox area forecast discussion... Updated national weather service los angeles oxnard ca 907 pm pdt Tue jul 25 2017 Synopsis Dry southwest flow aloft and building high pressure will gradually warm temperatures this week to a few degrees above normal. Overnight and morning low clouds will continue along the coast. Short term (tue-fri) the monsoonal moisture in place the last couple of days is slowly starting to stabilize and dry as drier southwest flow aloft entrains into the flow and the surface loses solar insolation. Mentions of showers and thunderstorms have been removed from the forecast for tonight in the latest update. A high pressure system centered over texas will slowly build in into the four corners region through late Thursday. As it does, a warming trend will develop due to weakening onshore flow and a thinning marine layer. Nam-wrf time height sections across the area continues to indicate a similar trend with the near-surface moisture getting squashed each day through Thursday and remaining shallow into Friday. A few tweaks have been made to the forecast based upon the latest data, but otherwise, the forecast seems on track. *** from previous discussion *** temperatures could reach toward dangerously hot levels across portions of the area on Friday and a heat advisory could needed Friday for the los angeles and ventura county mountains, if this trend continues. Long term (sat-tue) the ridge aloft weakens some while pushing into northern arizona over the weekend as the remnant moisture from hurricane hilary could get embedded in the flow around the high pressure system. Gfs and ECMWF solutions hint at some semblance of an easterly wave moving over the region. A slight chance of showers and thunderstorms remain in the forecast over the weekend over the mountains and desert and into early next week as a low confidence forecast looks to develop. Some model differences start to develop over the weekend and into early next week. Both model solutions agree that the high pressure system will strengthen to near 598 dm over the great basin some time between Tuesday and late next week. While agreement exists for further warming, timing will be difficult to place as much will depend upon the movement of the remnants of hurricane hilary. Aviation 26 0119z. At 00z, the marine layer depth was around 1250 feet deep at klax. The top of the marine inversion was around 1900 feet with a temperature near 21 degrees celsius. There was another inversion |
above up to 5000 feet. Moderate confidence in the forecast. Higher confidence in categories. Lower confidence in timing. Lifr to ifr conditions, except MVFR conditions for los angeles county coastal terminals will spread in between 05z and 13z. Highest confidence in timing for terminals north of point conception, but southern terminals could delay by up 4-6 hours after the current forecast. Klax... There is a 70 percent chance of MVFR conditions between 06z and 17z; however, MVFR conditions could delay until as late as 13z. There is a 30 percent chance ofVFR conditions continuing throughout the period. Kbur... There is a 40 percent chance of ifr to MVFR conditions between 10z and 16z, otherwiseVFR conditions will likely continuing throughout the period. Marine 25 800 pm. For the outer waters, good confidence in current forecast. Winds and seas will remain below small craft advisory (sca) levels through Thursday. For Friday and Saturday, winds may increase to sca levels in the far north portion. For the inner waters, good confidence in current forecast. For the waters north of point sal, winds and seas are expected to remain just below SCA levels through Saturday. For the waters south of point conception, winds and seas will remain below SCA levels through Saturday. Beaches 25 900 pm. Hurricane hilary will generate a southeasterly swell that will impact southern california beaches this weekend. The southeasterly swell will move into the coastal waters early Friday, then peak on Sunday. High surf conditions as well as strong rip currents will be likely across south-facing beaches this weekend. Isolated damaging sets of surf and beach erosion cannot be ruled out for the south-facing beaches of los angeles and ventura counties. Lox watches warnings advisories Ca... Beach hazards statement in effect from Friday morning through Tuesday evening for zones 40-41-87. (see laxcfwlox). Pz... None. Hazard potential outlook (fri-tue) a significant surf event could develop late Thursday as swells from hurricane hilary arrive at the southern california beaches. High surf and strong rip currents will occur from Friday through Sunday. Public... Hall aviation... Hall marine... Sweet sirard beaches... Sweet synopsis... Smith 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 |
| 46215 - Diablo Canyon, CA (076) | 16 mi | 56 min | 58°F | 3 ft | ||||
| PSLC1 - 9412110 - Port San Luis, CA | 19 mi | 46 min | W 8 G 12 | 61°F | 57°F | 1016.1 hPa (+0.4) | ||
| 46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA | 34 mi | 56 min | NW 5.8 G 7.8 | 61°F | 62°F | 4 ft | 1015.6 hPa (+0.0) |
Wind History for Port San Luis, CA
(wind in knots) EDIT (on/off) Help| 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 | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | |
| Last 24hr | W | W | W | W | W | SW | W | SW | -- | -- | NW | SE | SE | NE | SE | SW G13 | SW G17 | SW G11 | SW G14 | W | W G14 | W G13 | W G14 | W G12 |
| 1 day ago | NW | -- | SE | E | SE | N | E | S | S | SE | NE | SE | S G10 | S | SE | SW G10 | SW G12 | SW G9 | SW G16 | SW G14 | W | W G15 | SW G11 | SW G9 |
| 2 days ago | SE | SE | E | SE | SE | E | SE | N G8 | NE | E | SW G11 | W G8 | E | NE G6 | NE | N | W G7 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| San Luis Obispo, San Luis Obispo County-Mc Chesney Field, CA | 18 mi | 50 min | NW 7 | 10.00 mi | Fair | 62°F | 55°F | 78% | 1015.1 hPa |
| Paso Robles Municipal Airport, CA | 22 mi | 53 min | SSW 6 | 10.00 mi | Fair | 68°F | 53°F | 59% | 1014.1 hPa |
Wind History from SBP (wind in knots)
| 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 | 2 PM | 3 PM | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | |
| Last 24hr | SW | SW | SW | Calm | SW | S | S | S | S | SW | W | E | Calm | W | Calm | SW | S | SW | NW | NW | NW | NW | ||
| 1 day ago | W | Calm | Calm | S | Calm | SW | SW | SW | S | S | S | Calm | SE | S | SW | SW | SW | NW | NW | NW | NW | NW | ||
| 2 days ago | NW | NW | Calm | S | SE | Calm | Calm | S | SE | Calm | Calm | Calm | Calm | W | W | NW | NW | NW | W | W | W | NW |
Tide / Current Tables for Morro Beach, Estero Bay, California
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Morro Beach Click for Map Wed -- 12:21 AM PDT 5.73 feet High Tide Wed -- 06:07 AM PDT Sunrise Wed -- 07:14 AM PDT -0.44 feet Low Tide Wed -- 09:42 AM PDT Moonrise Wed -- 01:46 PM PDT 4.51 feet High Tide Wed -- 07:14 PM PDT 1.75 feet Low Tide Wed -- 08:11 PM PDT Sunset Wed -- 10:39 PM PDT Moonset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 5.7 | 5.6 | 4.9 | 3.8 | 2.4 | 1 | 0 | -0.4 | -0.3 | 0.4 | 1.5 | 2.7 | 3.7 | 4.4 | 4.5 | 4.2 | 3.5 | 2.7 | 2.1 | 1.8 | 1.9 | 2.4 | 3.2 | 4.1 |
Tide / Current Tables for Avila, California
EDIT (on/off) Help One Week of Data| Avila Click for Map Wed -- 06:07 AM PDT Sunrise Wed -- 06:42 AM PDT -3.48 feet Low Tide Wed -- 09:42 AM PDT Moonrise Wed -- 01:23 PM PDT 1.65 feet High Tide Wed -- 06:39 PM PDT -0.71 feet Low Tide Wed -- 08:10 PM PDT Sunset Wed -- 10:39 PM PDT Moonset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 2.9 | 2.4 | 1.3 | -0 | -1.4 | -2.6 | -3.3 | -3.5 | -3 | -2 | -0.8 | 0.4 | 1.2 | 1.6 | 1.6 | 1.1 | 0.4 | -0.2 | -0.6 | -0.7 | -0.4 | 0.3 | 1.2 | 1.9 |
Weather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of Southwest EDIT  |
Wind Forecast for Los Angeles/Oxnard, CA (0,6,7,8)
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Ground Weather Radar Station Vandenberg AFB, 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. |