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Marine Weather and Tides
Version 3.4 |
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 6:58AM | Sunset 4:52PM | Tuesday December 10, 2019 7:29 AM PST (15:29 UTC) | Moonrise 4:03PM | Moonset 5:21AM | Illumination 98% |  |
PZZ645 Point Piedras Blancas To Point Sal Westward Out To 10 Nm- 319 Am Pst Tue Dec 10 2019
Today..NE winds 5 to 10 kt, becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 4 to 5 ft at 14 seconds.
Tonight..NW winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 4 to 6 ft at 14 seconds.
Wed..Winds variable 10 kt or less, becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 6 to 7 ft at 15 seconds.
Wed night..NW winds 10 to 15 kt in the evening, becoming N 5 to 10 kt. Wind waves 2 ft or less. NW swell 6 to 7 ft at 14 seconds.
Thu..N winds 5 to 10 kt, becoming nw 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. NW swell 6 to 8 ft at 17 seconds.
Thu night..N winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 9 to 11 ft at 17 seconds.
Fri..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 11 to 13 ft.
Sat..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 10 to 12 ft.
Today..NE winds 5 to 10 kt, becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 4 to 5 ft at 14 seconds.
Tonight..NW winds 10 to 15 kt in the evening, becoming variable 10 kt or less. Wind waves 2 ft or less. W swell 4 to 6 ft at 14 seconds.
Wed..Winds variable 10 kt or less, becoming nw 10 to 15 kt in the afternoon. Wind waves 2 ft or less. NW swell 6 to 7 ft at 15 seconds.
Wed night..NW winds 10 to 15 kt in the evening, becoming N 5 to 10 kt. Wind waves 2 ft or less. NW swell 6 to 7 ft at 14 seconds.
Thu..N winds 5 to 10 kt, becoming nw 10 to 20 kt in the afternoon. Wind waves 1 to 3 ft. NW swell 6 to 8 ft at 17 seconds.
Thu night..N winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 9 to 11 ft at 17 seconds.
Fri..NW winds 10 to 15 kt. Wind waves 2 ft or less. NW swell 11 to 13 ft.
Sat..NW winds 15 to 20 kt with gusts to 25 kt. Combined seas 10 to 12 ft.
PZZ600 319 Am Pst Tue Dec 10 2019
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 10z or 2 am pst, a 1024 mb high pressure center was located 400 nm southwest of point conception with a ridge extending to a 1028 mb high pressure center across southern idaho.
Synopsis for the southern california coast and santa barbara channel including the channel islands national marine sanctuary and national park..At 10z or 2 am pst, a 1024 mb high pressure center was located 400 nm southwest of point conception with a ridge extending to a 1028 mb high pressure center across southern idaho.
7 Day Forecast for Marine Location Near Avilla Beach, CA
Hourly EDIT Helplocation: 35.17, -120.74 debug
Area Discussion for - Los Angeles/Oxnard, CA
(on/off) Help NOTE: mouseover dotted underlined text for definitionFXUS66 KLOX 101255 AFDLOX
Area Forecast Discussion National Weather Service Los Angeles/Oxnard CA 455 AM PST Tue Dec 10 2019
. Aviation discussion updated .
SYNOPSIS. 10/233 AM.
Skies will be partly cloudy through the week. Afternoon high temperatures will be near normal through Wednesday and then above normal on Thursday and Friday. By the weekend, clouds should increase again and there is a slight chance of rain in the Ventura County mountains.
SHORT TERM (TDY-THU). 10/304 AM.
There is a weak ridge originating from the SW over SoCal. Hgts are near 579 DM. Gradients are weakly offshore from both the north and east. A very weak eddy has brought low clouds to the LA county coast and the offshore flow from the east has advected some low clouds into the interior of SLO county. The ridge is not strong enough to deflect a batch of mid and high level clouds and today will be a mostly cloudy day although the clouds may be thin enough to let in a little more sunshine than "mostly cloudy" day normally. The slightly higher than normal hgts and weak offshore flow along with the cloud cover will all combine to bring most max temps to near normal values.
A weak trof will push the ridge away tonight and then move over the area. There is not enough moisture or dynamics with this trof to produce rain just some some clouds. Northerly offshore pressure gradients will form in the wake of the trof and this along with some (minimal) cold air advection will bring about a north wind event (sub advisory) focused down the i-5 corridor, the SBA south coast and the area 10 miles either side of the LA/VTA county line. The cool air advection will offset the offshore flow and max temps will not change much.
The north winds will continue overnight before weakening and shifting more to the northeast.
Ridging again develops across the southern half of the state on Thursday. There will be about 3 mb of offshore flow from both the east and north in the morning and this will kick off a weak Santa Ana event. Nothing to write home about just 15 to 25 mph with local gusts to 35 mph in the morning through and below the passes and canyons. Like today the ridge will not be high enough amplitude to deflect a stream of mid and high level clouds and enough mid and high level clouds will be overhead to make it a mostly cloudy morning. At this time it looks like these clouds will taper off in the afternoon and there will be some sunshine. Hgts will be well above normal so despite the clouds there will be a nice 3 to 6 degree bump in temps and most cst/vly sites south of Pt Conception will see Max temps in the lower to mid 70s or about 5 degrees above normal. Central Coast max temps will only be 2 or 3 degrees above normal.
LONG TERM (FRI-MON). 10/319 AM.
Friday looks like it will be the nicest day of the weak. The ridge and the weak offshore flow will persist but the mid and high level clouds should be gone making for a sunny day with max temps 2 to 5 degrees above normal.
The ridge gets pushed to the south as some energy drops out of the Gulf of Alaska. Flat NW flow will become more and more cyclonic as Saturday progresses. Hgts will fall to about 565 DM. The weak offshore flow will reverse to weak onshore. Clouds will increase through the day. A small chc of rain will develop across the interior later in the afternoon. Max temps will drop everywhere and the csts and vly temps will not be able to escape the 60s.
A weak trof will zip across the state Saturday night. It will bring a slight chc of mtn rain which may extend into portions of the vlys. The latest mdls and their ensemble members have started to trend drier and even chc pops may be over done. The trof will kick off a round of offshore winds fueled by moderate northerly offshore grads and cold air advection. There will probably be some advisory level gusts through the I-5 Corridor and the SBA south coast.
Skies will be mostly sunny on Sunday but the cool air filtering in behind Saturday night's trof will make it the coolest day of the next 7 with cst and vly temps mostly in the lower to mid 60s.
A ridge builds in on Monday. There will be moderate offshore flow from both the east and north and this should result in a Santa Ana event with low end advisory gusts in the usual locations. Max temps will rise a few degrees under sunny skies.
AVIATION. 10/1253Z.
At 08z at KLAX . There was a weak inversion around 900 feet. The top of the inversion was around 1800 feet with a temperature of about 13 degrees Celsius.
Overall . Moderate to high confidence in the current TAFs. Periodic VLIFR/LIFR conditions at KPRB, KLAX, and KLGB and LIFR/IFR conditions at KSMO through 17z. There will also be LLWS +/- 10kt possible at KSBP and KSMX through 14z due to NE winds aloft and a NW-N surface winds. There is a sixty percent chance of IFR/MVFR conditions returning to KPRB, KSBP, and KSMX after 08z. Otherwise and elsewhere VFR conditions will prevail.
KLAX . Moderate confidence in the current TAF. Periodic VLIFR/LIFR conditions through 16z and IFR/MVFR through 17z. Otherwise VFR conditions will prevail. There is a twenty percent chance of east winds greater than 8 kts through 17z and a less than ten percent chance after 11/14z.
KBUR . Moderate confidence in the current TAF. There is a ten percent chance of IFR/MVFR conditions 13z-17z. Otherwise VFR conditions will prevail.
MARINE. 10/316 AM.
Patchy dense fog will develop across portions of the coastal waters south of Point Conception this morning, especially off the Los Angeles County coast.
Across the outer waters . Gusty west to northwest winds and building seas in the central and southern outer waters will increase to Small Craft Advisory (SCA) levels Wednesday afternoon and will continue into the weekend. There is a chance of similar conditions developing in the northern outer waters Friday and Saturday.
Across the inner waters . SCA level winds will develop across the western portion of the Santa Barbara Channel Wednesday afternoon and evening. These conditions will likely redevelop on Friday.
A large and long period west to northwest swell will move through the coastal waters late Thursday through Saturday, resulting in hazardous sea conditions and large breaking waves near shore. Breaking waves at the Morro Bay and Ventura Harbor entrances are possible.
BEACHES. 10/259 AM.
A large long-period west to northwest swell will push on to the coast of central and southern California Thursday night, peak on Friday, then slowly diminish over the weekend. Swells off the Central Coast will likely peak at 12 to 15 feet and off the southern waters 5 to 8 feet. There is a slight chance of surf greater than 20 feet at times along the Central Coast. High Surf Advisories will likely be needed across the region with strong rip currents and dangerous breaking waves developing as well.
High tides will be around 6.5 feet so minor coastal flooding is possible late Friday and early Saturday morning. Any coastal flooding impacts should be confined to the beaches, bike paths, walkways, and to the most vulnerable parking lots.
LOX WATCHES/WARNINGS/ADVISORIES. CA . NONE. PZ . Small Craft Advisory in effect from 3 PM Wednesday to 3 AM PST Thursday for zone 650. (See LAXMWWLOX). Small Craft Advisory in effect from 3 PM Wednesday to 3 PM PST Saturday for zones 673-676. (See LAXMWWLOX).
.HAZARD POTENTIAL OUTLOOK (THU-MON).
High surf is likely and minor coastal flooding is possible for late this week at area beaches. Strong north winds possible Sunday in southern Santa Barbara County, and parts of LA/Ventura Counties.
PUBLIC . Rorke AVIATION . Kj MARINE . Kj BEACHES . Kittell/Kj SYNOPSIS . 30
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 | 0 mi | 33 min | N 4.1 G 5.1 | 51°F | 1022.9 hPa | 44°F | ||
| PSLC1 - 9412110 - Port San Luis, CA | 1 mi | 59 min | N 5.1 G 5.1 | 54°F | 60°F | 1023 hPa | ||
| 46215 - Diablo Canyon, CA (076) | 7 mi | 29 min | 59°F | 4 ft | ||||
| 46011 - SANTA MARIA - 21 NM Northwest of Point Arguello, CA | 21 mi | 39 min | N 7.8 G 12 | 56°F | 60°F | 5 ft | 1022.8 hPa | 47°F |
| PTGC1 - Point Arguello, CA | 41 mi | 89 min | N 5.1 G 6 | 56°F | 1021.6 hPa (+0.5) | |||
| 46259 | 49 mi | 29 min | 59°F | 5 ft | ||||
| HRVC1 | 49 mi | 59 min | 57°F | 1022 hPa |
Wind History for Port San Luis, CA
(wind in knots) EDIT (on/off) Help| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | |
| Last 24hr | NW | N | N | N | N | N G14 | N G14 | N G14 | NW | NW | NW | N G14 | -- | SE G4 | N | NW | N | E | NW G10 | SW | NW G5 | -- | NE | NW |
| 1 day ago | E G7 | N | SE | S G15 | SE G13 | N G9 | W G11 | NE G11 | SE G6 | -- | N | N | W | SW | -- | E G4 | N | S | SW G5 | E G4 | NW | NW G8 | NW G13 | S |
| 2 days ago | S | W | S | S | S G14 | S | S | S | S | S G9 | S G10 | S | S G15 | S | S | S | S | S G16 | S G18 | NE G7 | SE G11 | W G10 | E | NE G4 |
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 | 7 mi | 33 min | E 5 | 10.00 mi | Fair | 46°F | 42°F | 86% | 1022.2 hPa |
| Santa Maria Public Airport/Capt G Allan Hancock Field, CA | 24 mi | 38 min | N 0 | 10.00 mi | Fair | 45°F | 41°F | 86% | 1022.9 hPa |
Link to 5 minute data for KSBP
Wind History from SBP (wind in knots)
| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | |
| Last 24hr | NW | NW | W | W | W | N | N | N | N | N | NE | S | E | Calm | Calm | SE | Calm | S | E | Calm | SE | E | ||
| 1 day ago | SE | SE | Calm | SW | W | NW | N | Calm | S | Calm | Calm | Calm | Calm | NW | Calm | NW | NW | W | SE | E | Calm | Calm | Calm | Calm |
| 2 days ago | SE | SE | SE | S | Calm | S | S | S | S | S | Calm | S | S | S | S | S | SE | S | S | S | SW | NW | Calm | Calm |
Tide / Current Tables for Avila, California
EDIT Weekend mode (on/off) (on/off) Help One Week of DataAvila
Click for Map
Tue -- 01:25 AM PST -0.71 feet Low Tide
Tue -- 05:21 AM PST Moonset
Tue -- 07:00 AM PST Sunrise
Tue -- 07:47 AM PST 2.99 feet High Tide
Tue -- 03:07 PM PST -3.14 feet Low Tide
Tue -- 04:02 PM PST Moonrise
Tue -- 04:50 PM PST Sunset
Tue -- 09:31 PM PST 0.74 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 01:25 AM PST -0.71 feet Low Tide
Tue -- 05:21 AM PST Moonset
Tue -- 07:00 AM PST Sunrise
Tue -- 07:47 AM PST 2.99 feet High Tide
Tue -- 03:07 PM PST -3.14 feet Low Tide
Tue -- 04:02 PM PST Moonrise
Tue -- 04:50 PM PST Sunset
Tue -- 09:31 PM PST 0.74 feet High 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 |
| -0.4 | -0.7 | -0.7 | -0.3 | 0.4 | 1.4 | 2.2 | 2.8 | 3 | 2.6 | 1.8 | 0.6 | -0.8 | -2 | -2.8 | -3.1 | -2.9 | -2.3 | -1.3 | -0.4 | 0.3 | 0.7 | 0.7 | 0.4 |
Tide / Current Tables for Morro Bay, California
EDIT (on/off) Help One Week of DataMorro Bay
Click for Map
Tue -- 02:23 AM PST 1.85 feet Low Tide
Tue -- 05:21 AM PST Moonset
Tue -- 07:01 AM PST Sunrise
Tue -- 08:44 AM PST 4.88 feet High Tide
Tue -- 04:02 PM PST Moonrise
Tue -- 04:20 PM PST -0.02 feet Low Tide
Tue -- 04:50 PM PST Sunset
Tue -- 10:19 PM PST 2.77 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 02:23 AM PST 1.85 feet Low Tide
Tue -- 05:21 AM PST Moonset
Tue -- 07:01 AM PST Sunrise
Tue -- 08:44 AM PST 4.88 feet High Tide
Tue -- 04:02 PM PST Moonrise
Tue -- 04:20 PM PST -0.02 feet Low Tide
Tue -- 04:50 PM PST Sunset
Tue -- 10:19 PM PST 2.77 feet High 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 |
| 2.3 | 2 | 1.9 | 1.9 | 2.2 | 2.8 | 3.6 | 4.3 | 4.8 | 4.9 | 4.5 | 3.8 | 2.8 | 1.9 | 1 | 0.4 | 0 | 0.1 | 0.6 | 1.2 | 1.9 | 2.5 | 2.8 | 2.7 |
Weather Map
(on/off) Help Weather Map
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 (10,2,3,4)
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Ground Weather Radar Station Vandenberg AFB, CA
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