Tuesday, April7, 2020
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Marine Weather and Tides
Big Creek, CA

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:32AMSunset 7:27PM Tuesday April 7, 2020 6:38 AM PDT (13:38 UTC) Moonrise 7:15PMMoonset 6:38AM Illumination 100% Phase: Full Moon; Moon at 14 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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7 Day Forecast for Marine Location Near Big Creek, CA
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location: 37.23, -119.22     debug


Area Discussion for - San Joaquin Valley/Hanford, CA
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FXUS66 KHNX 070924 AFDHNX

Area Forecast Discussion National Weather Service Hanford CA 224 AM PDT Tue Apr 7 2020

SYNOPSIS. Low pressure will move down the California coast today and into Southern California Wednesday and Thursday. Unsettled and cool weather will continue with lower elevation rain and mountain snow for especially southern parts of the region.

DISCUSSION. Strong cyclonic flow and difluence aloft continue this morning over the Central California Interior as low pressure spins about 200 miles west of the Central Coast. Water vapor imagery shows several embedded vorticity centers (or areas of spine within the overall spin) rotating around the low center. As the parent low center slowly moves to the south the flow into the forecast area is beginning to shift from the southwest to the south.

So how does the pattern evolve? For today with forecast models bringing the center of the big offshore low to a location about 200 miles west of Point Conception the flow into the region will shift to the south by later this afternoon and this will push moisture northward into Kern County. During the evening and into tonight the low is projected to move to the east with the center position just south of the Channel Islands by Wednesday morning and the resulting flow becoming southeast. Taking things into Wednesday afternoon, models move the center of the low east into San Bernardino County and this will allow the moist flow to turn to the east over Kern County and the Southern Sierra. This south to southeast to east flow pattern is ideal for precipitation in the Southern Sierra and Kern County areas.

Model projected precipitation suggests a good long lasting soaking rain for the lower elevations and significant snow above 5500 feet in the mountains. A Winter Storm Warning has been issued for the Sierra from Sequoia Park southward across the Piutes, Tehachapi and San Emigdio ranges from late this afternoon through Wednesday evening where heavy snow is likely. Snow levels will likely stay above pass level on the Grapevine and Tehachapi Passes, however Walker Pass could receive up to several inches of wet snow by Wednesday night as well as Pine Mountain Club and areas just above Frazier Park. Upper Bear Valley Springs should get some snow too.

Since this low pressure system is a "cutoff" low (meaning separated from the jet stream and steering currents) it will only slowly move east on Thursday to the Lake Mead vicinity thus some northeast flow wrap around showers will persist over the Sierra and Kern County mountain and desert areas. By Thursday night and Friday the low is progged to sag into southwest Arizona and the Central California Interior will be precipitation free in the dry northerly flow behind the low. All in all a good precipitation event to continue, this time for the south.

AVIATION. Mainly VFR through 18Z over the region with areas mountain obscurations. MVFR and local IFR from 21Z most areas along with mountain obscurations in rain and snow.

AIR QUALITY ISSUES. None.

CERTAINTY.

The level of certainty for days 1 and 2 is medium. The level of certainty for days 3 through 7 is medium.

Certainty levels include low . medium . and high. Please visit www.weather.gov/hnx/certainty.html for additional information an/or to provide feedback.

HNX WATCHES/WARNINGS/ADVISORIES. Winter Storm Warning from 5 PM this afternoon to 11 PM PDT Wednesday for CAZ194>197.



public . Dudley aviation . Dudley

weather.gov/hanford


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Mammoth Yosemite Airport, CA34 mi60 minN 010.00 miOvercast25°F21°F86%1015.6 hPa

Link to 5 minute data for KMMH

Wind History from MMH (wind in knots)
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Last 24hrW8NW3E6SE7S3CalmCalmCalmS14
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Tide / Current Tables for
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Tide / Current Tables for
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Weather Map
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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 San Joaquin Valley/Hanford, CA (9,2,3,4)
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Ground Weather Radar Station San Joaquin Valley, CA
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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 numerous 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.