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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 7:20AM | Sunset 6:23PM | Saturday October 21, 2017 11:18 PM PDT (06:18 UTC) | Moonrise 8:07AM | Moonset 7:07PM | Illumination 4% |  |
Marine Forecasts
EDIT (on/off) Help| PZZ575 Pigeon Point To Point Pinos 10 To 60 Nm Offshore- 829 Pm Pdt Sat Oct 21 2017 .small craft advisory in effect through late Sunday night... Tonight..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 9 to 10 ft at 13 seconds. Patchy fog after midnight. Sun..N winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 9 ft at 13 seconds. Patchy fog in the morning. Sun night..N winds 15 to 25 kt. Wind waves 3 to 5 ft. NW swell 8 to 9 ft at 13 seconds. Mon..NW winds 10 to 20 kt. Wind waves 2 to 4 ft. NW swell 8 ft at 13 seconds. Mon night..N winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 8 ft at 13 seconds. Tue..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 7 to 9 ft. Wed..NW winds 5 to 15 kt. Wind waves 1 to 3 ft. NW swell 5 to 6 ft. Thu..N winds 5 to 15 kt. Wind waves 1 to 3 ft...becoming 2 ft or less. NW swell 5 ft. | PZZ500 829 Pm Pdt Sat Oct 21 2017 Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Northwesterly winds are gusty over the southernmost waters this evening while winds are lighter elsewhere. Northwesterly winds will gradually increase over the remaining coastal waters Sunday and Sunday night. Northwest swell periods will decrease slowly through late Sunday, however, hazardous conditions due to squared seas will exist in most offshore areas through tonight. |
7 Day Forecast for Marine Location Near Carmel-by-the-Sea, CA
Hourly EDIT Helplocation: 35.63, -123.73 debug
Area Discussion for - San Francisco/Monterey Bay Area, CA
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus66 kmtr 220559 afdmtr area forecast discussion national weather service san francisco bay area 1057 pm pdt Sat oct 21 2017 Synopsis The warming trend that got underway across our region today will continue tomorrow. The warming trend will intensify on Monday when offshore flow strengthens. Very warm and dry conditions are forecast across the region on both Monday and Tuesday. Dry weather conditions will persist through next week. Gradual cooling if forecast during the second half of the week, but temperatures will remain above seasonal averages. Discussion As of 8:40 pm pdt Saturday... An upper ridge began to strengthen over california today and onshore flow weakened. The result was warmer temperatures today. Today's highs were generally 5 to 10 degrees warmer compared to Friday, but still a couple of degrees cooler than normal in most areas. Today will be the last day of cooler than average temperatures for quite some time. Expect another 5 to 10 degrees of warming on Sunday as the upper ridge continues to build along the west coast. The warming and drying trend across our region will then intensify on Monday after offshore flow develops on Sunday night. North to northeast winds are expected to strengthen in our hills late Sunday night and Monday morning. Strongest winds are forecast to be at the higher elevations of the north bay where local gusts up to 40 mph are likely. Locally gusty winds are also likely elsewhere, especially in the east bay hills and higher elevations of the santa cruz mountains. Winds will not likely be strong enough to meet wind advisory criteria, but gusty winds and a drier airmass will begin to raise fire weather concerns by Monday (see fire weather discussion below for details). High temperatures on Monday and Tuesday are forecast to be in the 80s and lower 90s across our entire region. Tuesday is expected to be the warmest day of the week when a few mid 90s are possible. While these warm temperatures will increase heat risks locally into the moderate category by Tuesday, the long and relatively cool late october nights will help to mitigate heat risks associated with the very warm days. The upper ridge is forecast to weaken and retreat offshore around midweek which will result in slight cooling during the second half of next week. In any case, expect continued dry weather and warmer than normal temperatures through the end of the week. Longer range models show no rain in site through the end of the month. Aviation As of 10:57 pm pdt Saturday...VFR continues over most of the bay area and north central coast tonight and Sunday. Dewpoint temperatures are higher per 24 hour trends coupled with radiative cooling under mainly clear skies tonight and early Sunday morning may produce a patch or two of valley fog. Low clouds as well as some patchy fog will linger along coastal sonoma county to the san mateo coast into Sunday morning. A very strong late october ridge develops Sunday through Tuesday. The acv-sfo pressure gradient nears 5 mb late Sunday into Monday and the wmc-sfo gradient increases to |
10-13 mb Sunday night into Monday; there is potential for low level wind shear later Sunday evening into Monday morning at koak, klvk, ksjc, and ksfo. Vicinity of ksfo...VFR. Light west wind tonight, w-nw wind increasing to 15-20 knots Sunday afternoon and evening. Low level wind shear 06z-12z Monday. Sfo bridge approach... Similar to ksfo. Monterey bay terminals...VFR. Light and variable late this evening possibly becoming light SE very early Sunday morning. Onshore winds 10-20 knots Sunday afternoon then mainly light e-se drainage wind flow begins Sunday evening, possibly becoming gusty overnight in the salinas valley. Fire weather As of 8:30 pm pdt Saturday... Gradual warming and drying will continue across the district into Sunday. Then, offshore flow is forecast to strengthen on Sunday night, resulting in much warmer and drier conditions by Monday. Locally moderate and gusty north to northeast winds are forecast in the hills late Sunday night and Monday morning, particularly at the higher elevations of the north bay, but also locally in the east bay hills and santa cruz mountains. Wind gusts of between 25 and 35 mph are likely in these locations late Sunday night and Monday morning, with local gusts in excess of 40 mph possible across the higher ridges of the north bay. In addition, nighttime humidity recoveries will be poor in the hills on Sunday night. Were it not for the recent wetting rains on Thursday night, these developments would have resulted in critical fire weather conditions. However, finer fuels are expected to retain enough moisture in the short term to mitigate fire weather concerns to some extent. But fuels will dry out quickly early in the week under these conditions. Another round of gusty winds in the hills is expected Monday night into Tuesday morning, especially in the north bay hills. While winds on Monday night are not expected to be as strong as on Sunday night, winds on Monday night may be of greater concern as fuels will have had longer to dry by then. Will continue to monitor fuel moisture over the next few days and issue red flag warnings if warranted. Winds are expected to subside in all areas by Tuesday afternoon, but very warm and dry conditions will continue through midweek. Slight cooling is expected Wednesday and Thursday as high pressure over california weakens. Marine As of 10:37 pm pdt Saturday... Northwesterly winds are gusty over the southernmost waters this evening while winds are lighter elsewhere. Northwesterly winds will gradually increase over the remaining coastal waters Sunday and Sunday night. Northwest swell periods will decrease slowly through late Sunday, however, hazardous conditions due to squared seas will exist in most offshore areas through tonight. Mtr watches warnings advisories Tngt Sca... Pt pinos to pt piedras blancas 0-10 nm sca... Pt arena to pigeon pt 10-60 nm sca... Pigeon pt to pt piedras blancas 10-60 nm public forecast: dykema aviation marine: canepa fire weather: dykema 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 |
| 46239 - Point Sur, CA (157) | 99 mi | 49 min | 56°F | 10 ft | ||||
| 46028 - CAPE SAN MARTIN - 55NM West Northwest of Morro Bay, CA | 99 mi | 89 min | NNW 21 G 25 | 59°F | 58°F | 12 ft | 1023.5 hPa (+1.2) |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Monterey Regional Airport, CA | 120 mi | 25 min | ENE 3 | 10.00 mi | Fair | 52°F | 46°F | 80% | 1027 hPa |
Wind History from MRY (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 | E | Calm | Calm | S | E | E | E | E | E | E | E | Calm | W | W | N | W | W | NW | NW | W | W | E | Calm | E |
| 1 day ago | SW G16 | S G18 | W G29 | SW | S | SW | S | E | Calm | Calm | SW | W | W | W | W | W | W G17 | W | W G15 | W | W | W | W | S |
| 2 days ago | Calm | W | Calm | S | SW | SE | Calm | W | SW | Calm | W | W | W | W | SW | SW | SW | SW | Calm | SE | S G17 |
Tide / Current Tables for
EDIT RT Ports Option Weekend mode (on/off) (on/off) HelpTide / Current Tables for
EDIT (on/off) HelpWeather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of CentralWestCoast EDIT  |
Wind Forecast for San Francisco/Monterey Bay Area, CA (2,6,7,8)
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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. |