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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 7:19AM | Sunset 4:51PM | Tuesday December 10, 2019 3:01 AM PST (11:01 UTC) | Moonrise 4:06PM | Moonset 5:40AM | Illumination 98% | ![]() |
PZZ540 Coastal Waters From Point Arena To Point Reyes California Out To 10 Nm- 208 Am Pst Tue Dec 10 2019
Today..SE winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 4 to 6 ft at 15 seconds and S around 2 ft at 16 seconds. A chance of rain this afternoon.
Tonight..SE winds 10 to 20 kt with gusts up to 25 kt. Wind waves 2 to 3 ft. W swell 6 to 8 ft at 15 seconds and S around 2 ft at 15 seconds. A chance of rain.
Wed..SE winds 10 to 15 kt. Wind waves 2 to 3 ft. W swell 7 to 8 ft at 15 seconds and S around 2 ft at 15 seconds. A slight chance of rain.
Wed night..SE winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 6 to 8 ft at 16 seconds. A chance of rain.
Thu..SE winds 5 to 15 kt. Wind waves 2 to 3 ft. W swell 9 to 11 ft at 19 seconds. A chance of rain.
Thu night..S winds up to 10 kt. Wind waves 1 ft. W swell 13 to 15 ft at 17 seconds. A chance of rain.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 12 to 14 ft. A chance of rain.
Sat..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 8 to 10 ft. A chance of rain.
Today..SE winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 4 to 6 ft at 15 seconds and S around 2 ft at 16 seconds. A chance of rain this afternoon.
Tonight..SE winds 10 to 20 kt with gusts up to 25 kt. Wind waves 2 to 3 ft. W swell 6 to 8 ft at 15 seconds and S around 2 ft at 15 seconds. A chance of rain.
Wed..SE winds 10 to 15 kt. Wind waves 2 to 3 ft. W swell 7 to 8 ft at 15 seconds and S around 2 ft at 15 seconds. A slight chance of rain.
Wed night..SE winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 6 to 8 ft at 16 seconds. A chance of rain.
Thu..SE winds 5 to 15 kt. Wind waves 2 to 3 ft. W swell 9 to 11 ft at 19 seconds. A chance of rain.
Thu night..S winds up to 10 kt. Wind waves 1 ft. W swell 13 to 15 ft at 17 seconds. A chance of rain.
Fri..NW winds 5 to 15 kt. Wind waves 1 to 2 ft. W swell 12 to 14 ft. A chance of rain.
Sat..NW winds 10 to 20 kt with gusts up to 25 kt. Wind waves 3 to 4 ft. W swell 8 to 10 ft. A chance of rain.
PZZ500 208 Am Pst Tue Dec 10 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light winds will persist over the coastal waters as a weak system approaches. A weak cold front will turn winds southerly today and bring a chance of showers this evening and into Wednesday. Light to moderate southerly winds will then continue through much of the week before shifting back out of the northwest towards the weekend. Moderate northwest swell will also persist before a longer period northwest swell arrives on Thursday. Wave heights will gradually build heading into the coming weekend creating hazardous seas conditions, particularly for smaller vessels.
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Generally light winds will persist over the coastal waters as a weak system approaches. A weak cold front will turn winds southerly today and bring a chance of showers this evening and into Wednesday. Light to moderate southerly winds will then continue through much of the week before shifting back out of the northwest towards the weekend. Moderate northwest swell will also persist before a longer period northwest swell arrives on Thursday. Wave heights will gradually build heading into the coming weekend creating hazardous seas conditions, particularly for smaller vessels.
7 Day Forecast for Marine Location Near Boonville, CA
Hourly EDIT Helplocation: 38.89, -123.38 debug
Area Discussion for - Eureka, CA
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS66 KEKA 092252 AFDEKA
AREA FORECAST DISCUSSION National Weather Service Eureka CA 252 PM PST Mon Dec 9 2019
SYNOPSIS. A weak front will bring light rain to Northwest California Tuesday, followed by a brief period of high pressure on Wednesday, before an extended bout of wet weather begins on Wednesday night.
DISCUSSION. Visible imagery this morning showed interior valley fog was a bit more stubborn to clear out today. Though by late morning, most areas saw at least localized clearing, with the exception being in northern Trinity and northeast Humboldt counties where the valley fog has hung around into the early afternoon hours. Most of the Mendocino coast has been socked in all day and should persist the rest of the day, with only localized clearing possible. Dry conditions will prevail across the region through around midday on Tuesday as a weakening cold front approaches the area. As a result, light rain will spread into Northwest California Tuesday afternoon and evening. Overall totals are expected to be marginal, with the most favorable orographic areas only receiving around a half an inch. High pressure will build back into the region aloft early on Wednesday, bringing dry conditions back to the area as zonal mid-level flow develops. This moist zonal flow will allow for several weak impulses to move through the region, bringing several bouts of mostly light rain through early on Friday. Overall, these weak disturbances should be mostly benign, bringing mostly light winds and generally light rain.
AVIATION. Many parts of northwest California observed clearing skies with the exception of the Mendocino coast and some interior valleys. VFR should prevail for most areas through the evening but some MVFR ceilings will not be out of the question for valleys and parts of the coast late tonight. Meanwhile, an approaching storm system will bring mid to upper cloud cover across northwest California and generally light south winds tonight. Light rain will impact coastal airfields mid to late Tuesday morning and interior locations by the afternoon. Conditions will deteriorate to MVFR, possibly IFR at times, with the arrival of the rain and south- southeasterly winds will increase to near 10kt. KMZ
MARINE. Lower winds and seas will continue across northwest California waters tonight. An approaching frontal boundary will bring fresh southerly winds on Tuesday. Small craft advisories remain in effect for Tuesday with wind gusts approaching 25 kt offshore and steep seas reaching 8 to 11 feet. The weather pattern will remain unsettled through the rest of the week with additional weather systems bringing the potential for rain. This means moderate southerly winds will continue through the rest of the work week before increasing north and west winds return over the weekend. There is significant WNW swell forecast to impact the coastal waters on Thursday and Friday. The sea state will build rapidly on Thursday and Friday around 16 feet at 17 seconds. A hazardous seas warning may be necessary if the forecast remains on track. This swell could create dangerous conditions for mariners traversing the bar. EYS
EKA WATCHES/WARNINGS/ADVISORIES. CA . None. NORTHWEST CALIFORNIA COASTAL WATERS . Small Craft Advisory from 9 AM to 9 PM PST Tuesday for PZZ470- 475.
Visit us at https://www.weather.gov/eureka
Follow us on Facebook and Twitter at: https://www.facebook.com/NWSEureka https://www.twitter.com/NWSEureka
For forecast zone information see the forecast zone map online: https://www.weather.gov/images/eka/zonemap.png
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
ANVC1 - 9416841 - Arena Cove, CA | 18 mi | 56 min | NE 2.9 G 4.1 | 50°F | 54°F | 1024.5 hPa | ||
46014 - PT ARENA - 19NM North of Point Arena, CA | 39 mi | 22 min | E 1.9 G 3.9 | 52°F | 56°F | 1023.7 hPa | 50°F | |
46013 - Bodega Bay - 48NM North Northwest of San Francisco, CA | 44 mi | 22 min | E 5.8 G 7.8 | 52°F | 55°F | 1024.4 hPa | 52°F |
Wind History for Arena Cove, CA
(wind in knots) EDIT (on/off)  Help3 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 | 12 AM | 1 AM | 2 AM | |
Last 24hr | E | E | E | E | E | E | E | SE G4 | N | W | NW | NW | E | E | E | NE | E | E | NW | E | E | S G4 | SE G5 | E |
1 day ago | SW | W | NW | W G5 | W | W | W | NW G9 | W G10 | W G11 | W G13 | W G12 | W G14 | W G10 | SW G5 | E G5 | E | NE | E | NE | NE | E | E | E |
2 days ago | E G24 | E G24 | E G23 | SW G14 | SW G20 | E G11 | SW G15 | S G21 | S G16 | SE G12 | E G8 | SE G7 | NE G7 | S G11 | S G11 | S G12 | S G10 | S G11 | S G9 | S | S G9 | S G9 |
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 |
Ukiah Municipal Airport, CA | 20 mi | 66 min | N 0 | 10.00 mi | Overcast | 51°F | 46°F | 86% | 1024 hPa |
Link to 5 minute data for KUKI
Wind History from UKI (wind in knots)
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 | 12 AM | 1 AM | 2 AM | |
Last 24hr | Calm | Calm | Calm | N | NW | N | Calm | Calm | Calm | SW | SE | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | |||
1 day ago | Calm | S | S | Calm | N | Calm | Calm | Calm | Calm | Calm | Calm | SW | Calm | W | NW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm |
2 days ago | SE | S G17 | S G17 | SE | S G20 | S G14 | S | S | S G16 | S G18 | S G21 | S G26 | SE G15 | S | SE | SE | SE | SE | Calm | S | S | SE | Calm | S |
Tide / Current Tables for Arena Cove, California (2)
EDIT Weekend mode (on/off) (on/off)  Help One Week of DataArena Cove
Click for Map
Tue -- 03:04 AM PST 2.50 feet Low Tide
Tue -- 05:41 AM PST Moonset
Tue -- 07:22 AM PST Sunrise
Tue -- 08:56 AM PST 6.18 feet High Tide
Tue -- 04:06 PM PST Moonrise
Tue -- 04:07 PM PST -0.40 feet Low Tide
Tue -- 04:52 PM PST Sunset
Tue -- 10:49 PM PST 4.56 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 03:04 AM PST 2.50 feet Low Tide
Tue -- 05:41 AM PST Moonset
Tue -- 07:22 AM PST Sunrise
Tue -- 08:56 AM PST 6.18 feet High Tide
Tue -- 04:06 PM PST Moonrise
Tue -- 04:07 PM PST -0.40 feet Low Tide
Tue -- 04:52 PM PST Sunset
Tue -- 10:49 PM PST 4.56 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 |
3.8 | 3.2 | 2.7 | 2.5 | 2.7 | 3.4 | 4.3 | 5.2 | 5.9 | 6.2 | 5.9 | 5 | 3.7 | 2.2 | 0.9 | -0 | -0.4 | -0.2 | 0.6 | 1.6 | 2.7 | 3.7 | 4.4 | 4.6 |
Tide / Current Tables for Point Arena, California Current
EDIT (on/off)  Help One Week of DataPoint Arena
Click for Map
Tue -- 12:58 AM PST -0.69 knots Max Ebb
Tue -- 04:14 AM PST 0.00 knots Slack
Tue -- 05:41 AM PST Moonset
Tue -- 07:06 AM PST 0.80 knots Max Flood
Tue -- 07:22 AM PST Sunrise
Tue -- 09:58 AM PST -0.00 knots Slack
Tue -- 01:13 PM PST -1.38 knots Max Ebb
Tue -- 04:07 PM PST Moonrise
Tue -- 04:52 PM PST Sunset
Tue -- 05:12 PM PST 0.00 knots Slack
Tue -- 08:11 PM PST 1.03 knots Max Flood
Tue -- 11:31 PM PST -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Tue -- 12:58 AM PST -0.69 knots Max Ebb
Tue -- 04:14 AM PST 0.00 knots Slack
Tue -- 05:41 AM PST Moonset
Tue -- 07:06 AM PST 0.80 knots Max Flood
Tue -- 07:22 AM PST Sunrise
Tue -- 09:58 AM PST -0.00 knots Slack
Tue -- 01:13 PM PST -1.38 knots Max Ebb
Tue -- 04:07 PM PST Moonrise
Tue -- 04:52 PM PST Sunset
Tue -- 05:12 PM PST 0.00 knots Slack
Tue -- 08:11 PM PST 1.03 knots Max Flood
Tue -- 11:31 PM PST -0.00 knots Slack
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 |
-0.6 | -0.7 | -0.6 | -0.4 | -0.1 | 0.3 | 0.6 | 0.8 | 0.7 | 0.4 | -0 | -0.6 | -1.1 | -1.4 | -1.3 | -1 | -0.6 | -0.1 | 0.4 | 0.9 | 1 | 1 | 0.7 | 0.3 |
Weather Map
(on/off)  Help Weather Map
GEOS Local Image of CentralWestCoast 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 Eureka, CA (6,6,7,8)
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Ground Weather Radar Station Sacramento, CA
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