Wednesday, April21, 2021
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Marine Weather and Tides
Lemon Hill, CA

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 6:19AMSunset 7:49PM Wednesday April 21, 2021 4:50 AM PDT (11:50 UTC) Moonrise 12:41PMMoonset 2:33AM Illumination 71% Phase: Waxing Gibbous; Moon at 9 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PZZ530 San Pablo Bay, Suisun Bay, The West Delta And The San Francisco Bay North Of The Bay Bridge- 237 Am Pdt Wed Apr 21 2021
.small craft advisory in effect from this afternoon through late tonight...
Today..SW winds 10 to 20 kt. Gusts up to 30 kt this afternoon.
Tonight..SW winds 10 to 20 kt with gusts up to 25 kt.
Thu..SW winds 15 to 25 kt with gusts up to 30 kt.
Thu night..SW winds 5 to 15 kt with gusts up to 25 kt.
Fri..SW winds 10 to 20 kt with gusts up to 25 kt.
Fri night..SW winds 5 to 15 kt with gusts up to 25 kt.
Sat..SW winds 5 to 15 kt. Rain.
Sun..SW winds 5 to 15 kt. Rain.
PZZ500 237 Am Pdt Wed Apr 21 2021
Synopsis for the central california coast and bays including the Monterey bay..Greater farallones...and cordell bank national marine sanctuaries... Strong winds with gale force gusts continue over the northern outer waters creating fresh steep wind waves resulting in hazardous seas particularly for smaller vessels. Winds remain moderately strong elsewhere and gradually diminish with seas remaining hazardous for smaller vessels on Wednesday. A moderate northwest swell continues through the week. Chance for rain this coming weekend.


7 Day Forecast for Marine Location Near Lemon Hill, CA
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location: 38.52, -121.49     debug


Area Discussion for - Sacramento, CA
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FXUS66 KSTO 210930 AFDSTO

Area Forecast Discussion National Weather Service Sacramento CA 230 AM PDT Wed Apr 21 2021

SYNOPSIS. A few showers and thunderstorms linger in the Sierra south of Tahoe today. Otherwise, dry and warmer weather returns through the end of the week. Chance of precipitation returns this weekend.

DISCUSSION. Satellite imagery shows the low now to the southeast of the Sacramento area continuing to gradually move southeast. Radar still indicating scattered showers over the Sierra Nevada from about the Lake Tahoe area southward. A few of these showers are working their way west down into the foothills before dissipating. Otherwise, skies are clearing out across the remainder of the region. Current temperatures are running around 5 degrees cooler compared to 24 hours ago across most of the region.

Low moves into southern Nevada by this afternoon, but weak trough hangs back into NorCal today. Highs today will be up a bit across most of the area, and the Sierra south of Tahoe will continue to see a threat for showers and a few late day thunderstorms.

The northerly surface pressure gradient will increase across NorCal resulting in gusts up to around 30 mph across the northern Sacramento Valley and along the western edge. Combined with low humidity (minimum RH in the upper single digits and low teens), this will result in elevated fire weather conditions as most of this area saw only spotty light showers yesterday.

Upper level ridging builds in Thursday and that will bring a period of quiet weather with warm and dry conditions into Friday with less wind. A short wave trough will approach the northern part of the state Friday night and we could see a few light showers develop over the Shasta County Mountains overnight. Precipitation chances may spread south to about I-80 by later Saturday.

EXTENDED DISCUSSION (Sunday THROUGH Wednesday). A trough axis will be approaching the California coast on Sunday, moving across the area through early next week. Much cooler weather is expected along with Valley rain and mountain snow chances during this time. The best chances for widespread precipitation looks to be Sunday, with the foothills/mountains favored for Monday into Tuesday. Snow levels do look to be slightly below pass levels so some mountain travel impacts are expected for Sunday into Monday. After Monday, clusters vary a bit between continued troughing across the area or ridging briefing building back over Northern California. Would expect some warmer temperatures to occur if the latter did occur.

AVIATION. VFR conditions are expected for the next 24 hours. A few hours of LLWS are possible in the northern Sac Valley thru 15Z this morning. Northerly winds also increase in this area from 18-00Z Thursday with gusts up to 25 knots. Elsewhere, winds generally below 12 knots.

STO WATCHES/WARNINGS/ADVISORIES. None.




Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SFXC1 - San Francisco Bay Reserve, CA 36 mi66 min WNW 8 51°F 1009 hPa48°F
PSBC1 - 9415115 - Pittsburg (Suisun Bay), CA 39 mi57 min W 9.9 G 14 56°F 1008.2 hPa
PCOC1 - 9415144 - Port Chicago, CA 43 mi57 min SSW 6 G 9.9 51°F 61°F1009.3 hPa
MZXC1 - 9415102 - Martinez-Amorco CA 47 mi57 min WNW 5.1 G 7 54°F 61°F1009.7 hPa
UPBC1 47 mi57 min WNW 5.1 G 7
RCMC1 - 9414863 - Richmond, CA 64 mi57 min S 8 G 13 51°F 58°F1010.3 hPa

Wind History for Port Chicago, CA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sacramento Executive Airport, CA1 mi58 minE 410.00 miFair51°F46°F83%1008.2 hPa
Sacramento, McClellan Airfield Airport, CA11 mi56 minSE 510.00 miFair50°F46°F88%1008.5 hPa
Sacramento Mather Airport, CA11 mi51 minESE 410.00 miClear48°F45°F87%1008.5 hPa
Sacramento International Airport, CA14 mi58 minENE 510.00 miPartly Cloudy50°F45°F83%1008.2 hPa
University Airport, CA16 mi56 minN 010.00 miFair50°F46°F88%1008.1 hPa

Link to 5 minute data for KSAC

Wind History from SAC (wind in knots)
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S5SW74S5SE5CalmE5SE3E4
1 day agoS4S3S5S5S7S7--S5S83W7SW8S7S8S10S6S5S6S4SE4S4S4S5S6
2 days agoNW3NW4NW4NW6NW8NW6N4N8NW6NW7NW13
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Tide / Current Tables for Sacramento #4, Sacramento River, California
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Sacramento #4
Click for Map
Wed -- 03:33 AM PDT     Moonset
Wed -- 04:14 AM PDT     2.22 feet High Tide
Wed -- 06:21 AM PDT     Sunrise
Wed -- 10:38 AM PDT     0.84 feet Low Tide
Wed -- 01:40 PM PDT     Moonrise
Wed -- 02:20 PM PDT     2.38 feet High Tide
Wed -- 07:48 PM PDT     Sunset
Wed -- 11:38 PM PDT     -0.00 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.81.41.92.22.21.91.61.310.90.91.322.32.32.21.91.61.10.70.40.20

Tide / Current Tables for Clarksburg #4, Sacramento River, California
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Clarksburg #4
Click for Map
Wed -- 03:05 AM PDT     2.22 feet High Tide
Wed -- 03:32 AM PDT     Moonset
Wed -- 06:21 AM PDT     Sunrise
Wed -- 09:08 AM PDT     0.84 feet Low Tide
Wed -- 01:11 PM PDT     2.38 feet High Tide
Wed -- 01:41 PM PDT     Moonrise
Wed -- 07:48 PM PDT     Sunset
Wed -- 10:08 PM PDT     -0.00 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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11.622.22.11.81.51.20.90.811.52.12.42.32.21.91.410.60.30.100.1

Weather Map
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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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