|
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 6:52AM | Sunset 6:55PM | Monday September 25, 2017 3:13 PM PDT (22:13 UTC) | Moonrise 11:00AM | Moonset 9:38PM | Illumination 27% |  |
Marine Forecasts
EDIT (on/off) Help| PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 201 Pm Pdt Mon Sep 25 2017 Tonight..NW winds 10 to 15 kt with gusts to 20 kt in the evening... Becoming 5 to 10 kt. Wind waves 1 to 3 ft. NW swell 3 to 4 ft at 9 seconds. Tue..Winds variable 10 kt or less...becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 4 to 5 ft at 9 seconds. Tue night..NW winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 3 to 5 ft at 9 seconds. Wed..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 10 seconds. Wed night..NW winds 10 kt in the evening...becoming variable 10 kt or less. Wind waves 2 ft or less. NW swell 3 to 4 ft at 10 seconds. Thu..Winds variable 10 kt or less...becoming W 10 kt in the afternoon. Wind waves 2 ft or less. NW swell 3 to 4 ft at 10 seconds. Thu night..NW winds 5 to 10 kt. Wind waves 2 ft or less. NW swell 3 ft at 9 seconds. Fri..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 3 to 5 ft. Sat..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 4 to 6 ft. | PZZ600 201 Pm Pdt Mon Sep 25 2017 Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 20z...or 1 pm pdt....A 1021 mb surface high was over the great basin, while a 1009 mb thermal trough was along the southern california coast. Light to moderate west to northwest flow aloft will continue across the coastal waters this afternoon and evening, then locally moderate offshore winds will develop nearshore south of point conception. |
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 252104 afdlox area forecast discussion national weather service los angeles oxnard ca 204 pm pdt Mon sep 25 2017 Synopsis Gradually strengthening offshore flow will bring a warming and drying trend with mostly clear skies to the area through this week and into the weekend. There will be some gusty north to northeast winds at times over the region, especially below and through passes and canyons. Temperatures will be a few degrees above normal for many areas early this week, then increase to much above normal for late this week and into the weekend. Short term (tdy-thu) offshore flow resulted in a decent bump in temperatures area-wide today but most noticeably for the coast and coastal valleys where temps were up about 10 degrees on average. Northeast winds picked up as well but most areas were well below advisory levels. Gradients and upper support are expected to increase tonight and Tuesday morning which will lead to a slight increase in santa ana winds and temperatures. Have opted to not go with wind advisories at this point though it's likely one or two spots near the la ventura county line will get a few hours of advisory level gusts. On Wednesday gradients and upper support weaken and models show a little eddy spinning up and pulling in some low level moisture from the south that could allow some low clouds and fog to creep up from the south. But even if low clouds do not form coast valley temps should cool a few degrees and potentially more than what is currently forecast. Some mixed signals for Thu but likely minimal change overall. Low level temps are warmer but gradients trend slightly onshore so those factors likely will cancel each other out. If low clouds manage to work their way into la county Wednesday they will likely still be around Thu and forecast highs will almost certainly be too warm. Long term (fri-mon) models are definitely trending away from the ridge pattern through the weekend and gradients generally trend more onshore each day. So a few degrees have been trimmed off the forecast highs and more trimming may be needed if this continues, especially Sunday into Monday as both the GFS and ECMWF show a pretty strong upper low moving into the pac NW late in the weekend. Low clouds would likely return by the weekend as well if models don't flip back around to a warmer pattern. Aviation 25 1600z. At 16z, there was no marine layer at klax. High confidence inVFR conditions throughout the period. Moderate-to-high confidence in offshore winds. Periods of moderate to strong wind shear are possible tonight at mainly terminals south of point conception. Klax...VFR conditions are expected throughout the period. There is a 40 percent chance of moderate wind shear between 00z and 04z. There is 10 percent chance of east winds greater than 7 knots after 07z. Kbur...VFR conditions are expected throughout the period. There is a 50 percent chance of moderate wind shear between 10z and 18z. Marine 25 200 pm. |
Moderate-to-high confidence in the current forecast. Main concern is winds for the outer waters this evening and across the inner waters tonight and into Tuesday morning. Marginal small craft advisory level winds will likely develop late this afternoon across the northern outer waters and continue through this evening, otherwise winds and seas will remain below small craft advisory levels through at least Friday. Winds will likely increase over the weekend. For the inner waters, winds and seas are expected to remain below small craft advisory levels through Friday. There is a 40 percent chance of small craft advisory north to northeast winds each night and morning through Thursday across the nearshore waters from ventura south to santa monica. Fire weather 25 1130 am. A long duration of elevated fire danger expected to continue across portions of southwest california through this upcoming weekend. Weak to occasionally moderate offshore flow is expected during this period which will continue to support a prolonged period of very warm and dry conditions to the region. In the short term, offshore pressure gradients are expected to peak today and Tuesday when lax-daggett gradients are expected to range between -3 and -4 mb each morning. There is the potential for a slight ramp up in upper level support on Tuesday and Wednesday as computer models continue to show the potential for a cutoff low pressure system to develop near the colorado river valley. Offshore winds are expected to be the strongest across the mountains today and Tuesday with some weakening for Wednesday (including the santa monica mountains) when gusts between 30 and 40 mph are expected with local gusts to around 45 mph. Gusts between 25 and 35 mph are likely for wind prone valley and interior coastal areas. Offshore flow is expected to be weaker on Thursday and Friday, then potentially nudge upward again by Sunday. This prolonged period of offshore flow will bring widespread minimum humidities between 10 and 20 percent for areas away from the coast through next weekend, along with poor overnight recoveries across the mountains, foothills, and wind exposed locations. In addition, there will be a prolonged period of very warm temperatures with highs climbing into the 90s much of this week in the valleys, and triple digit readings possible Friday through next weekend. The above mentioned fire weather conditions combined with fuels becoming critically dry will support this long duration of elevated fire danger, with an increased risk for large fires and erratic fire behavior. Brief critical fire weather conditions are likely for areas with strongest winds today, Tuesday and possibly Wednesday. Local or brief critical fire weather conditions may return by Sunday. Lox watches warnings advisories Ca... None. Pz... Small craft advisory in effect until 9 pm pdt this evening for zones 670-673. (see laxmwwlox). Hazard potential outlook (thu-mon) no significant hazards expected. Public... Mw aviation... Hall marine... Hall fire... Munroe gomberg synopsis... Sweet 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 | 46 min | 59°F | 3 ft | ||||
| PSLC1 - 9412110 - Port San Luis, CA | 19 mi | 43 min | WSW 8.9 G 14 | 83°F | 58°F | 1009.9 hPa | ||
| CPXC1 | 19 mi | 19 min | WNW 9.9 G 14 | 81°F | 1009.8 hPa | 40°F | ||
| 46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA | 34 mi | 83 min | WNW 16 G 19 | 63°F | 64°F | 4 ft | 1010.7 hPa (-1.8) |
Wind History for Port San Luis, CA
(wind in knots) EDIT (on/off) Help| 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 | 2 PM | |
| Last 24hr | W G17 | SW G19 | W G10 | N G15 | NE G11 | SE G9 | SE | NE | S | N | S | SE | N | NE | N G14 | NW | NW G12 | NW | S | N | NE | SW G7 | W G15 | SW G12 |
| 1 day ago | W | W G22 | NW G16 | NW G20 | W G21 | SE G7 | SE | NW | NW | S | S | -- | -- | SW G4 | NE | N | N | -- | S | NW G5 | -- | NE | SW G16 | W |
| 2 days ago | W G23 | W G21 | W G15 | W G16 | W G12 | SW G8 | NW | W | NW | W | -- | N | -- | S | NW | -- | -- | -- | S | SE | NE | W G13 | W | W G24 |
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 | 17 min | NW 14 | 10.00 mi | Fair | 85°F | 37°F | 18% | 1009.2 hPa |
| Paso Robles Municipal Airport, CA | 22 mi | 20 min | Var 6 | 10.00 mi | Fair | 86°F | 26°F | 11% | 1010 hPa |
Wind History from SBP (wind in knots)
| 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 | 2 PM | 3 PM | |
| Last 24hr | NW G29 | NW | NW | NW | NW | NW | SW | Calm | Calm | SE | Calm | Calm | SE | Calm | SE | E | S | SW | Calm | E | N | NW | NW | |
| 1 day ago | NW | NW | NW | NW | NW | N | NW | SE | SE | Calm | E | Calm | S | SE | SE | E | Calm | Calm | SW | Calm | NE G14 | NW | NW | NW |
| 2 days ago | NW G23 | NW | NW | NW | NW | N | NW | E | E | Calm | E | Calm | N | NW | NW | NW | NW | NW | N | N | NW | NW | NW G23 |
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 Mon -- 02:13 AM PDT 3.47 feet High Tide Mon -- 06:53 AM PDT Sunrise Mon -- 07:17 AM PDT 2.26 feet Low Tide Mon -- 12:00 PM PDT Moonrise Mon -- 01:42 PM PDT 4.53 feet High Tide Mon -- 06:55 PM PDT Sunset Mon -- 09:03 PM PDT 1.30 feet Low Tide Mon -- 10:38 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 | 3.3 | 3.5 | 3.4 | 3.1 | 2.8 | 2.4 | 2.3 | 2.3 | 2.6 | 3.1 | 3.6 | 4.1 | 4.5 | 4.5 | 4.3 | 3.8 | 3.1 | 2.5 | 1.9 | 1.5 | 1.3 | 1.4 | 1.7 |
Tide / Current Tables for Avila, California
EDIT (on/off) Help One Week of Data| Avila Click for Map Mon -- 02:24 AM PDT 0.84 feet High Tide Mon -- 06:53 AM PDT Sunrise Mon -- 07:31 AM PDT -0.55 feet Low Tide Mon -- 11:59 AM PDT Moonrise Mon -- 01:39 PM PDT 1.80 feet High Tide Mon -- 06:54 PM PDT Sunset Mon -- 09:02 PM PDT -1.98 feet Low Tide Mon -- 10:38 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 |
| 0.1 | 0.6 | 0.8 | 0.8 | 0.5 | 0.1 | -0.3 | -0.5 | -0.5 | -0.3 | 0.2 | 0.8 | 1.4 | 1.7 | 1.8 | 1.5 | 1 | 0.2 | -0.6 | -1.3 | -1.8 | -2 | -1.8 | -1.4 |
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 (18,4,5,8)
(on/off) Help |  |  |
Ground Weather Radar Station Vandenberg AFB, CA
(on/off) Help
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. |