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Marine Weather and Tides
Version 3.4 |
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 6:30AM | Sunset 7:49PM | Saturday August 24, 2019 9:42 PM PDT (04:42 UTC) | Moonrise 12:00AM | Moonset 2:05PM | Illumination 29% |  |
PZZ535 Monterey Bay- 238 Pm Pdt Sat Aug 24 2019
Tonight..W winds 5 to 10 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft at 12 seconds and sw around 2 ft at 13 seconds.
Sun..W winds 10 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft at 12 seconds and sw around 2 ft at 15 seconds.
Sun night..W winds around 5 kt. Wind waves 2 ft. W swell 2 to 4 ft at 12 seconds.
Mon..W winds 10 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 4 ft at 11 seconds.
Mon night..W winds around 5 kt. Wind waves 1 to 2 ft. W swell 2 to 4 ft at 11 seconds.
Tue..W winds 10 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft at 10 seconds.
Tue night..SW winds around 5 kt. Wind waves 2 ft. W swell 2 to 3 ft at 9 seconds.
Wed..W winds 5 to 10 kt. Wind waves 2 ft. W swell 2 to 3 ft.
Thu..W winds 5 to 10 kt. Wind waves 2 ft. W swell around 2 ft and S around 2 ft. Locally lower winds and seas across sheltered portions of the bay.
Tonight..W winds 5 to 10 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft at 12 seconds and sw around 2 ft at 13 seconds.
Sun..W winds 10 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft at 12 seconds and sw around 2 ft at 15 seconds.
Sun night..W winds around 5 kt. Wind waves 2 ft. W swell 2 to 4 ft at 12 seconds.
Mon..W winds 10 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 4 ft at 11 seconds.
Mon night..W winds around 5 kt. Wind waves 1 to 2 ft. W swell 2 to 4 ft at 11 seconds.
Tue..W winds 10 to 15 kt. Wind waves 1 to 2 ft. W swell 2 to 3 ft at 10 seconds.
Tue night..SW winds around 5 kt. Wind waves 2 ft. W swell 2 to 3 ft at 9 seconds.
Wed..W winds 5 to 10 kt. Wind waves 2 ft. W swell 2 to 3 ft.
Thu..W winds 5 to 10 kt. Wind waves 2 ft. W swell around 2 ft and S around 2 ft. Locally lower winds and seas across sheltered portions of the bay.
PZZ500 238 Pm Pdt Sat Aug 24 2019
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northerly winds will persist over the northern outer waters while light southwesterly winds will develop elsewhere through the weekend. Steep, short period northwesterly swell will continue to decrease through the weekend with periods becoming 8 seconds. Moderate period southerly swell will increase to 2 to 3 feet on Sunday and persist through early next week with light to moderate period northwesterly swell continuing through the period.
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northerly winds will persist over the northern outer waters while light southwesterly winds will develop elsewhere through the weekend. Steep, short period northwesterly swell will continue to decrease through the weekend with periods becoming 8 seconds. Moderate period southerly swell will increase to 2 to 3 feet on Sunday and persist through early next week with light to moderate period northwesterly swell continuing through the period.
7 Day Forecast for Marine Location Near Pleasure Point, CA
Hourly EDIT Helplocation: 36.95, -121.97 debug
Area Discussion for - San Francisco/Monterey Bay Area, CA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 kmtr 250402 afdmtr area forecast discussion national weather service san francisco bay area 902 pm pdt Sat aug 24 2019 Synopsis High pressure will produce warmer temperatures through early next week, especially across inland areas where very warm temperatures are forecast. The marine layer will persist along the coast, along with light onshore flow, resulting in relatively mild temperatures near the ocean and bays. Moisture from tropical storm ivo may pass across our area from Tuesday afternoon into Wednesday, bringing increasing clouds and higher humidity. Cooler temperatures are forecast for the second half of next week. Discussion As of 9:00 pm pdt Saturday... Saturday was a typical late summer day. Morning low clouds and patchy fog cleared back to the coast by midday, leaving sunny skies for most areas during the afternoon. High temperatures were very close to normal for late august, ranging from the upper 60s near the ocean to the lower 90s in the inland valleys. An upper level ridge currently covers much of the northeast pacific, extending from north of hawaii eastward across california. This ridge is forecast to be our dominant weather feature through Monday. Coastal profiler data already shows a decrease in the depth of the marine layer since yesterday, and model data suggest further compression of the marine layer through Monday. Temperatures are expected to trend warmer over the next two days, especially inland, as marine air becomes increasingly confined to areas near the ocean. The inland valleys are forecast to warm into the mid and upper 90s by Monday, with some of the warmer spots such as lake berryessa and pinnacles national park likely to climb past 100. Temperatures of this magnitude are not all that unusual for this time of year and heat risks are expected to climb only into the moderate category across most inland areas through Monday. Isolated spots in the inland hills are projected to experience high heat risk due to limited overnight cooling. Persistent light onshore flow will keep temperatures mild in coastal areas with highs forecast to be mostly in the upper 60s and 70s, except for a few lower 80s possible in locations such as santa cruz. Tropical storm ivo off the west coast of the baja peninsula continues to drift slowly to the north. Ivo is forecast to dissipate well to the south of california, but some of ivo's moisture is projected to travel well north of the dying tropical system, thanks to southerly flow in the mid and upper levels. Models continue to indicate that the highest moisture content in the mid and upper levels will remain over the ocean off the coast of california, but there are indications there could be sufficient moisture over our area for the development of high- based showers and or thunderstorms from about Tuesday afternoon |
through early Wednesday. The question is whether there will be sufficient mid level instability for convection to initiate over land. On that front, the 00z NAM focuses the most unstable conditions offshore where moisture is highest and indicates very little chance of convection over land. Based on current models, the most we would likely see from this tropical moisture influx next week is mid and high level clouds and perhaps a little virga. In any case, we will continue to monitor this situation closely for any increasing thunderstorm potential over land. If thunderstorms do develop, most precipitation will likely evaporate in the dry sub-cloud layer, with the result being dry lightning and associated wildfire concerns. The upper ridge axis is forecast to shift to our east by late Tuesday and this will result in cooler temperatures during the second half of next week. Aviation As of 4:37 pm pdt Saturday... It'sVFR all locations except along the coastline point sur to northern coastal sonoma county there's almost, not quite, continuous MVFR-ifr CIGS vsbys in stratus and fog. The 4 pm onshore pressure gradient sfo-sac is 2.4 mb, other directional pressure gradients have relaxed are closer to balanced since Friday thus the overall wind field at the surface is lighter today with the usual summer late day sea breezes. Increasing coverage of MVFR-ifr tonight, conditions most places nearest the coastline are forecast to lower to ifr overnight. Conditions then lifting toVFR back to the coastline late morning to afternoon Sunday. Vicinity of ksfo...VFR, west wind near 15 knots until 03z. MVFR cig developing by 14z then back toVFR by 17z Sunday. Sfo bridge approach... Similar to ksfo. Monterey bay terminals...VFR, west winds near 10 knots early in the evening. Ifr CIGS returning by 03-04z. CIGS Sunday lift toVFR by late morning. Marine As of 4:06 pm pdt Saturday... Northerly winds will persist over the northern outer waters while light southwesterly winds will develop elsewhere through the weekend. Steep, short period northwesterly swell will continue to decrease through the weekend with periods becoming 8 seconds. Moderate period southerly swell will increase to 2 to 3 feet on Sunday and persist through early next week with light to moderate period northwesterly swell continuing through the period. Mtr watches warnings advisories Tngt Sca... Pt arena to pigeon pt 10-60 nm from 10 pm public forecast: dykema aviation: canepa marine: sims visit us at |
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 |
| 46092 - MBM1 | 14 mi | 92 min | W 7.8 | 60°F | 59°F | 1014.2 hPa (+0.0) | ||
| MLSC1 - Moss Landing, South Harbor, CA | 14 mi | 33 min | WNW 4.1 G 11 | 59°F | 1015.2 hPa (+0.6) | 58°F | ||
| ELXC1 - Elkhorn Slough Reserve, CA | 15 mi | 117 min | WNW 4.1 | 60°F | 1013 hPa | 59°F | ||
| 46240 - Cabrillo Point, Monterey Bay, CA (158) | 23 mi | 42 min | 62°F | 2 ft | ||||
| MEYC1 | 24 mi | 66 min | 64°F | 1014.6 hPa | ||||
| 46042 - MONTEREY - 27NM West of Monterey Bay, CA | 25 mi | 52 min | 1.9 G 3.9 | 61°F | 62°F | 5 ft | 1014 hPa (+0.0) | |
| 46114 - West Monterey Bay, CA | 26 mi | 42 min | 62°F | 5 ft | ||||
| RTYC1 - 9414523 - Redwood City, CA | 41 mi | 54 min | NNW 5.1 G 7 | 65°F | 76°F | 1014.5 hPa | ||
| 46239 - Point Sur, CA (157) | 42 mi | 42 min | 61°F | 5 ft |
Wind History for Monterey, CA
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
| 1 day ago | ||||||||||||||||||||||||
| 2 days ago |
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 |
| Watsonville, Watsonville Municipal Airport, CA | 10 mi | 49 min | WSW 3 | 10.00 mi | Mostly Cloudy | 61°F | 57°F | 90% | 1014.8 hPa |
Link to 5 minute data for KWVI
Wind History from WVI (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 | NW | Calm | W | Calm | Calm | Calm | NW | Calm | Calm | Calm | Calm | Calm | S | SW | W | W | W | W | SW | SW | SW | SW | W | SW |
| 1 day ago | E | E | Calm | SW | Calm | S | SE | NE | Calm | S | W | NW | W | W | W | W G19 | W G18 | W G18 | W | W | W | W | ||
| 2 days ago | SE | E | E | Calm | SE | SE | E | E | Calm | Calm | Calm | Calm | SW | S | S | S | S | S | S | SE | SE | SE | SE | SE |
Tide / Current Tables for Santa Cruz, California
EDIT Weekend mode (on/off) (on/off) Help One Week of DataSanta Cruz
Click for Map
Sun -- 12:50 AM PDT 0.62 feet Low Tide
Sun -- 01:16 AM PDT Moonrise
Sun -- 06:33 AM PDT Sunrise
Sun -- 08:42 AM PDT 3.61 feet High Tide
Sun -- 12:17 PM PDT 3.22 feet Low Tide
Sun -- 04:07 PM PDT Moonset
Sun -- 06:24 PM PDT 5.45 feet High Tide
Sun -- 07:46 PM PDT Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 12:50 AM PDT 0.62 feet Low Tide
Sun -- 01:16 AM PDT Moonrise
Sun -- 06:33 AM PDT Sunrise
Sun -- 08:42 AM PDT 3.61 feet High Tide
Sun -- 12:17 PM PDT 3.22 feet Low Tide
Sun -- 04:07 PM PDT Moonset
Sun -- 06:24 PM PDT 5.45 feet High Tide
Sun -- 07:46 PM PDT Sunset
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 | 0.6 | 0.8 | 1.3 | 1.8 | 2.4 | 3 | 3.3 | 3.6 | 3.6 | 3.5 | 3.3 | 3.2 | 3.3 | 3.5 | 4 | 4.6 | 5.1 | 5.4 | 5.4 | 4.9 | 4 | 2.9 | 1.7 |
Tide / Current Tables for Point Pinos, California Current
EDIT (on/off) Help One Week of DataPoint Pinos
Click for Map
Sun -- 01:17 AM PDT Moonrise
Sun -- 03:09 AM PDT 0.00 knots Slack
Sun -- 06:07 AM PDT 0.49 knots Max Flood
Sun -- 06:33 AM PDT Sunrise
Sun -- 09:32 AM PDT -0.00 knots Slack
Sun -- 11:33 AM PDT -0.32 knots Max Ebb
Sun -- 02:47 PM PDT 0.00 knots Slack
Sun -- 04:06 PM PDT Moonset
Sun -- 05:44 PM PDT 0.39 knots Max Flood
Sun -- 07:45 PM PDT Sunset
Sun -- 08:32 PM PDT -0.00 knots Slack
Sun -- 11:57 PM PDT -0.81 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Sun -- 01:17 AM PDT Moonrise
Sun -- 03:09 AM PDT 0.00 knots Slack
Sun -- 06:07 AM PDT 0.49 knots Max Flood
Sun -- 06:33 AM PDT Sunrise
Sun -- 09:32 AM PDT -0.00 knots Slack
Sun -- 11:33 AM PDT -0.32 knots Max Ebb
Sun -- 02:47 PM PDT 0.00 knots Slack
Sun -- 04:06 PM PDT Moonset
Sun -- 05:44 PM PDT 0.39 knots Max Flood
Sun -- 07:45 PM PDT Sunset
Sun -- 08:32 PM PDT -0.00 knots Slack
Sun -- 11:57 PM PDT -0.81 knots Max Ebb
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 | -0.5 | -0.3 | -0 | 0.2 | 0.4 | 0.5 | 0.5 | 0.3 | 0.1 | -0.1 | -0.3 | -0.3 | -0.2 | -0.1 | 0 | 0.2 | 0.4 | 0.4 | 0.3 | 0.1 | -0.1 | -0.4 | -0.7 |
Weather Map and Satellite Images
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GOES 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 San Francisco/Monterey Bay Area, CA (0,6,7,8)
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Ground Weather Radar Station San Francisco Bay Area, 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. |