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Marine Weather and Tides
Version 3.4 |
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 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. |
| Sunrise 6:48AM | Sunset 7:24PM | Tuesday March 31, 2020 11:52 PM PDT (06:52 UTC) | Moonrise 10:29AM | Moonset 12:27AM | Illumination 57% |  |
PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 911 Pm Pdt Tue Mar 31 2020
.small craft advisory in effect through late Wednesday night...
Tonight..NW winds 15 to 25 kt with gusts to 30 kt in the evening, becoming 10 to 20 kt with gusts to 25 kt. Combined seas 8 to 11 ft dominant period 9 seconds.
Wed..NW winds 10 to 20 kt, becoming 15 to 25 kt with gusts to 30 kt by the afternoon. Combined seas 7 to 10 ft dominant period 9 seconds, building to 9 to 12 ft dominant period 9 seconds in the afternoon.
Wed night..NW winds 20 to 30 kt with gusts to 35 kt in the evening, becoming 15 to 25 kt with gusts to 30 kt. Combined seas 11 to 14 ft dominant period 10 seconds, subsiding to 9 to 11 ft dominant period 10 seconds after midnight.
Thu..N winds 10 to 15 kt with gusts to 20 kt, becoming nw 10 to 20 kt with gusts to 25 kt in the afternoon. Combined seas 7 to 10 ft dominant period 11 seconds.
Thu night..NW winds 15 to 20 kt with local gusts to 25 kt in the evening, becoming N 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 7 to 8 ft at 10 seconds.
Fri..N winds 10 to 15 kt with gusts to 20 kt, becoming nw 10 to 20 kt with local gusts to 25 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 6 to 7 ft at 9 seconds.
Fri night..NW winds 15 to 25 kt with gusts to 30 kt in the evening, becoming 10 to 20 kt with gusts to 25 kt. Combined seas 6 to 8 ft dominant period 9 seconds.
Sat..NW winds 10 to 15 kt with gusts to 20 kt. Wind waves 1 to 3 ft. NW swell 4 to 6 ft.
Sun..SW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 4 to 6 ft. Chance of rain.
.small craft advisory in effect through late Wednesday night...
Tonight..NW winds 15 to 25 kt with gusts to 30 kt in the evening, becoming 10 to 20 kt with gusts to 25 kt. Combined seas 8 to 11 ft dominant period 9 seconds.
Wed..NW winds 10 to 20 kt, becoming 15 to 25 kt with gusts to 30 kt by the afternoon. Combined seas 7 to 10 ft dominant period 9 seconds, building to 9 to 12 ft dominant period 9 seconds in the afternoon.
Wed night..NW winds 20 to 30 kt with gusts to 35 kt in the evening, becoming 15 to 25 kt with gusts to 30 kt. Combined seas 11 to 14 ft dominant period 10 seconds, subsiding to 9 to 11 ft dominant period 10 seconds after midnight.
Thu..N winds 10 to 15 kt with gusts to 20 kt, becoming nw 10 to 20 kt with gusts to 25 kt in the afternoon. Combined seas 7 to 10 ft dominant period 11 seconds.
Thu night..NW winds 15 to 20 kt with local gusts to 25 kt in the evening, becoming N 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 7 to 8 ft at 10 seconds.
Fri..N winds 10 to 15 kt with gusts to 20 kt, becoming nw 10 to 20 kt with local gusts to 25 kt in the afternoon. Wind waves 2 to 4 ft. NW swell 6 to 7 ft at 9 seconds.
Fri night..NW winds 15 to 25 kt with gusts to 30 kt in the evening, becoming 10 to 20 kt with gusts to 25 kt. Combined seas 6 to 8 ft dominant period 9 seconds.
Sat..NW winds 10 to 15 kt with gusts to 20 kt. Wind waves 1 to 3 ft. NW swell 4 to 6 ft.
Sun..SW winds 10 to 15 kt. Wind waves 2 ft or less. W swell 4 to 6 ft. Chance of rain.
PZZ600 911 Pm Pdt Tue Mar 31 2020
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 04z, or 9 pm pdt, a 1030 mb surface high remains around 900 nm west of point conception, while a 1007 mb thermal low was near the southern nevada-california border. Gale force winds are forecast through tomorrow over the outer waters with moderate west to northwest flow elsewhere.
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 04z, or 9 pm pdt, a 1030 mb surface high remains around 900 nm west of point conception, while a 1007 mb thermal low was near the southern nevada-california border. Gale force winds are forecast through tomorrow over the outer waters with moderate west to northwest flow elsewhere.
7 Day Forecast for Marine Location Near San Luis Obispo, CA
Hourly EDIT Helplocation: 35.27, -120.66 debug
Area Discussion for - Los Angeles/Oxnard, CA
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXUS66 KLOX 010620 AFDLOX
Area Forecast Discussion . UPDATED National Weather Service Los Angeles/Oxnard CA 1120 PM PDT Tue Mar 31 2020
SYNOPSIS. 31/801 PM.
Conditions will be warm and dry through Saturday as high pressure resides in the region. By early next week, a pacific storm system will bring unsettled weather and a chance of rain. Temperatures will be cooler as the weak storm moves through, and any snow will be well above the major passes.
SHORT TERM (TUE-FRI). 31/944 PM.
Zonal flow continues over the region this evening as an upper- level high pressure system remains centered over the Pacific Ocean near 34N and 142W and a cold upper-level trough remains along the British Columbia coast. A weak disturbance moving up from the southwest, bringing high-level clouds today, will continue to move east tonight. A dying frontal boundary is producing gusty northwest to north winds across southern Santa Barbara County and through the Interstate 5 Corridor. Winds will continue to increase tonight and into Wednesday morning as a northerly surface pressure gradient continues to tighten.
With the northwest flow aloft, the pattern will remain open for troughiness to sneak in. Today was likely the warmest day of the week as 500 mb heights decline through the remainder of the week. A cooling trend will take shape on Wednesday.
PoPs will likely need to be boosted between Sunday and Monday by future shifts as the latest model solutions are trending more toward a wet weather pattern. The trough, currently located south of the Aleutian Islands, will lift out over the ridge in place, the dig southeast into the region.
***From Previous Discussion***
Winds will ease on Wednesday as a broad upper level trough sags southward over the state. Temperatures will cool a few degrees on Wednesday as well - roughly 3 to 5 degrees. Further cooling is expected on Thursday with lower 500 mb heights and cooler 850 mb temps as the upper trough sweeps through. The biggest drop in temperatures will be over the higher terrain.
LONG TERM (SAT-TUE). 31/901 PM.
No major change in the overall sensible weather on Friday as the upper trough exits to the east.
The upcoming weekend is still on the lower end of confidence as medium range models are still not in the best agreement. A weak area of low pressure swings through NorCal on Saturday bringing some rain to NorCal and the San Francisco Bay. The passing low to the north on Saturday may usher in some clouds and slightly cooler temperatures, but the forecast area will remain dry.
Quick on the heels of the passing low pressure system another stronger and more pronounced trough/low pressure will move through the state. This system will have a higher likelihood of rain early Sunday - first impacting SLO then spreading southward through the day. Rain chances will lingering into Monday. It should also be noted the system will be colder with snow levels in the 5-6k range.
Looking farther down the road CPC 6-10 outlook valid through April 10 keeps temperatures on the cooler side with additional rain chances.
AVIATION. 01/0619Z.
At 03Z at KLAX, there was no marine layer. There was a sfc based inversion with a top of 1500 feet with a temperature of about 19 C.
Good confidence in TAFs xcp KPRB, KSMX, KSBP, KSMO, KLAX and KLGB. There is a 20 percent chc of no cigs at KPRB and KLGB and if cigs do arrive the arrival time could be off by +/- 1 hour. There is a 30 percent chc of IFR cigs at KSMX, KSBP, KSMO, KLAX 11Z-16Z.
KLAX . Moderate confidence in TAF with a 30 percent chc of BKN007 11Z-16Z. There is a 30 percent chc of a 8 kt east wind component.
KBUR . High confidence in TAF. Lgt Turbc SFC-140 thru 15Z.
MARINE. 31/925 PM.
Moderate-to-high confidence in the current forecast overall. Small Craft Advisory (SCA) conditions are likely across much of the coastal waters through Thursday, except for portions of the southern California bight closest to shore.
For the waters northwest through southwest of the Channel Islands, moderate-to-high confidence in current forecast. Gale force winds will likely continue at times between Tuesday afternoon and late Wednesday night, especially for the waters out beyond 10 nm north of Point Sal. There is a 40-50 percent chance that Gales may linger into Thursday night.
Inside the southern California bight, moderate confidence in current forecast. For the western half of the Santa Barbara Channel, SCA level northwest winds will continue Tuesday through Saturday, mainly during the late afternoon and evening hours. Elsewhere, winds and seas are expected to remain below SCA levels through Friday, but there is a 40-50 percent chance of SCA level winds Wednesday afternoon and evening and Saturday afternoon and evening across western sections.
LOX WATCHES/WARNINGS/ADVISORIES. CA . Wind Advisory in effect until 3 AM PDT Wednesday for zones 39-52. (See LAXNPWLOX). Wind Advisory in effect until 11 AM PDT Wednesday for zones 53-54. (See LAXNPWLOX). PZ . Small Craft Advisory in effect until 3 AM PDT Thursday for zone 645. (See LAXMWWLOX). Small Craft Advisory in effect until 3 AM PDT Wednesday for zone 650. (See LAXMWWLOX). Gale Warning in effect until 3 AM PDT Thursday for zones 670-673-676. (See LAXMWWLOX).
.HAZARD POTENTIAL OUTLOOK (FRI-TUE).
A storm system will likely bring wet roadways and gusty winds between Sunday and Monday.
PUBLIC . Hall/MM AVIATION . Rorke MARINE . Hall SYNOPSIS . Phillips/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 |
| CPXC1 | 8 mi | 40 min | N 7 G 9.9 | 66°F | 1015.3 hPa | 48°F | ||
| PSLC1 - 9412110 - Port San Luis, CA | 9 mi | 52 min | NNW 6 G 8.9 | 67°F | 57°F | 1015.3 hPa (-0.6) | ||
| 46215 - Diablo Canyon, CA (076) | 11 mi | 52 min | 55°F | 4 ft | ||||
| 46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA | 29 mi | 32 min | NNW 21 G 27 | 57°F | 57°F | 1015.3 hPa | 52°F | |
| PTGC1 - Point Arguello, CA | 48 mi | 52 min | N 19 G 22 | 55°F | 1014.3 hPa (-0.5) |
Wind History for Port San Luis, CA
(wind in knots) EDIT (on/off) Help| 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 | |
| Last 24hr | N | NW | -- | N G13 | N | NE | N | N G10 | N | S | N G14 | N G21 | N G19 | NE G18 | N G20 | NE G20 | N G19 | NW G14 | W | W G14 | SE | -- | S | N G9 |
| 1 day ago | N | S | NW | NW | N | SE | S | W | N | -- | S | SW | W G14 | W | NE G11 | W G20 | W | W G23 | W | NW G13 | W G12 | E | -- | -- |
| 2 days ago | N | -- | -- | NE | SW | SW G9 | SW G17 | W G18 | W G18 | W G17 | SW G16 | SW G17 | W G18 | SW G11 | W G12 | W G10 | NW G6 | NW | W |
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 |
| San Luis Obispo, San Luis Obispo County-Mc Chesney Field, CA | 2 mi | 56 min | W 6 | 10.00 mi | Fair | 54°F | 51°F | 90% | 1014.9 hPa |
Link to 5 minute data for KSBP
Wind History from SBP (wind in knots)
| 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 | |
| Last 24hr | SE | SE | NW | E | NW | W | E | W | NW | N G26 | NE G17 | NW | N | NW G20 | NW | NW | NW | NW | NW | W | ||||
| 1 day ago | Calm | Calm | E | SE | Calm | Calm | NW | Calm | Calm | W | NW | NW | W | NW | NW | NW | NW G27 | NW G27 | NW | NW | NW | NW | NW | NW |
| 2 days ago | NW | NW | W | W | W | NW | Calm | Calm | Calm | Calm | NW | NW | NW | NW | NW | NW | NW | NW | NW | NW | W | SW | Calm |
Tide / Current Tables for Avila, California
EDIT Weekend mode (on/off) (on/off) Help One Week of DataAvila
Click for Map
Wed -- 02:24 AM PDT Moonset
Wed -- 03:21 AM PDT First Quarter
Wed -- 03:41 AM PDT 2.05 feet High Tide
Wed -- 06:48 AM PDT Sunrise
Wed -- 11:46 AM PDT -2.47 feet Low Tide
Wed -- 12:24 PM PDT Moonrise
Wed -- 07:00 PM PDT 0.61 feet High Tide
Wed -- 07:24 PM PDT Sunset
Wed -- 10:48 PM PDT 0.12 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 02:24 AM PDT Moonset
Wed -- 03:21 AM PDT First Quarter
Wed -- 03:41 AM PDT 2.05 feet High Tide
Wed -- 06:48 AM PDT Sunrise
Wed -- 11:46 AM PDT -2.47 feet Low Tide
Wed -- 12:24 PM PDT Moonrise
Wed -- 07:00 PM PDT 0.61 feet High Tide
Wed -- 07:24 PM PDT Sunset
Wed -- 10:48 PM PDT 0.12 feet Low Tide
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 |
| 0.7 | 1.2 | 1.7 | 2 | 2 | 1.8 | 1.3 | 0.5 | -0.4 | -1.2 | -1.9 | -2.4 | -2.5 | -2.2 | -1.7 | -1 | -0.3 | 0.2 | 0.5 | 0.6 | 0.5 | 0.3 | 0.2 | 0.1 |
Tide / Current Tables for Port San Luis Wharf, California
EDIT (on/off) Help One Week of DataPort San Luis Wharf
Click for Map
Wed -- 02:24 AM PDT Moonset
Wed -- 03:21 AM PDT First Quarter
Wed -- 03:51 AM PDT 4.20 feet High Tide
Wed -- 06:48 AM PDT Sunrise
Wed -- 12:22 PM PDT 0.37 feet Low Tide
Wed -- 12:24 PM PDT Moonrise
Wed -- 07:25 PM PDT Sunset
Wed -- 08:02 PM PDT 3.21 feet High Tide
Wed -- 11:36 PM PDT 2.90 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 02:24 AM PDT Moonset
Wed -- 03:21 AM PDT First Quarter
Wed -- 03:51 AM PDT 4.20 feet High Tide
Wed -- 06:48 AM PDT Sunrise
Wed -- 12:22 PM PDT 0.37 feet Low Tide
Wed -- 12:24 PM PDT Moonrise
Wed -- 07:25 PM PDT Sunset
Wed -- 08:02 PM PDT 3.21 feet High Tide
Wed -- 11:36 PM PDT 2.90 feet Low Tide
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 |
| 3.4 | 3.6 | 3.9 | 4.1 | 4.2 | 4.1 | 3.7 | 3.2 | 2.5 | 1.8 | 1.1 | 0.6 | 0.4 | 0.4 | 0.7 | 1.2 | 1.8 | 2.4 | 2.8 | 3.1 | 3.2 | 3.2 | 3 | 2.9 |
Weather Map
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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 Los Angeles/Oxnard, CA (2,6,7,8)
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Ground Weather Radar Station Vandenberg AFB, CA
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