Friday, January19, 2018 L-36.com


Marine Weather and Tides
Mayfair, CA

Version 3.4
What's New / NOTES
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 7:07AMSunset 5:13PM Friday January 19, 2018 3:25 AM PST (11:25 UTC) Moonrise 9:47AMMoonset 8:50PM Illumination 7% Phase: Waxing Crescent; Moon at 3 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
    EDIT      (on/off)   Help
7 Day Forecast for Marine Location Near Mayfair, CA
   Hourly   EDIT   Help
location: 36.75, -119.78     debug


Area Discussion for - San Joaquin Valley/Hanford, CA
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus66 khnx 190006
afdhnx
area forecast discussion
national weather service san joaquin valley - hanford ca
406 pm pst Thu jan 18 2018

Update Updated air quality issues.

Synopsis
A system will move through the region tonight increasing chances
for precipitation through Saturday and bringing cooler
temperatures. Dry conditions will return late Saturday through
Sunday. Precipitation chances will again increase beginning
Monday, though for locations mainly north of kern county.

Discussion The low pressure system is slowly moving southward.

The main effects at this time are mid-level and high clouds. The
low clouds from this morning have mainly dissipated due to the
arrival of the southwest flow ahead of the system and higher
level cloud cover. So far this afternoon, radar has been showing a
few light echoes over western merced county, so it is possible a
few sprinkles could be reaching the ground. The associated upper-
level trough with this system and the colder air remains off the
coast of northern california and is expected to dig southward and
move inland during the day on Friday.

Snow levels are expected to fall during the night tonight and
continue falling through the day on Friday as the cold front moves
southward over central california. Most of the precipitation is
expected occur over the sierra nevada overnight tonight into
Friday, and most of the snow will fall mainly above 5,000 feet.

However, a dusting is possible in few locations down to 3,000 feet
by Friday afternoon, especially in showers behind the cold front.

As the system continues its progression southward, snowfall is
expected over the kern county mountain passes during Friday
through Saturday, with most of the activity occurring on Friday
afternoon and Friday night. Lingering snow showers, mainly above
3,000 feet will likely continue over the kern county mountains
through at least early Saturday afternoon due to the colder
northwest flow behind the system. Some snow accumulation is
possible at the pass levels, especially along the major highways
(including interstate 5 through the grapevine and tehachapi pass
along highway 58). Therefore, have issued a winter weather
advisory for these areas in the kern county mountains. Based on
latest data, confidence in this pattern has slightly increased,
but remains medium, including in terms of amount of precipitation
and how low the snow will fall, beyond Friday afternoon.

After a brief break on Saturday evening Sunday, another low
pressure system is expected to move over at least the northern
part of our forecast area. There is a slight chance of showers
for areas north of kern county during Sunday night into Monday.

Based on latest guidance, this system appears to be not as cold,
while moisture is limited. In addition, the system will likely
weaken over our forecast area as it moves southward from northern
california. Snow is expected to fall mainly over the sierra nevada
from yosemite to kings canyon for elevations in the more typical
region, or around 5,000 to 6,000 feet.

It also appears another system could bring another round of
precipitation to central california late next week, as the models
for the last couple of runs have shown a similar pattern
developing. However, the typical disagreement in timing and
placement still exists between model solutions, so confidence
lowers significantly for that period.

Aviation
MVFR and areas of mountain obscuring ifr conditions over the sierra
nevada, spreading south to the tehachapi mountains after 12z Friday.

MVFR conditions in haze across the san joaquin valley with scattered
showers after 06z Friday. Elsewhere,VFR conditions will prevail for
the next 24 hours.

Air quality issues
On Friday january 19 2018... Fireplace wood stove burning
status is: no burning unless registered in kern county. Further
information is available at valleyair.Org

Certainty
The level of certainty for days 1 and 2 is high.

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

Certainty levels include low... Medium... And high. Please visit


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Fresno, Fresno Air Terminal, CA4 mi32 minNW 18 G 238.00 miLight Rain and Breezy50°F46°F86%1018.3 hPa
Madera Municipal Airport, CA24 mi32 minNNW 137.00 miLight Rain50°F48°F93%1019 hPa

Wind History from FAT (wind in knots)
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
3
AM
Last 24hrNE4E5CalmE4E6E6SE3SE3SW4W6W3S3W7W6NW7CalmCalmSE4W4W4NW7NW4NW11NW18
G23
1 day agoSE4E4E4E7E5SE5W3E5E6S5S3S4SW3SW3SW3CalmW3CalmCalmSE3SE6SE5E4NW4
2 days agoCalm3CalmCalmSW5SW6W3E3SE4W3W3SE4CalmSW4S3CalmE3CalmSW3W4CalmNW3NE3Calm

Tide / Current Tables for
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help
Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of Southwest    EDIT
Geos

Wind Forecast for San Joaquin Valley/Hanford, CA (6,6,7,8)
      (on/off)   Help

Ground Weather Radar Station San Joaquin Valley, CA
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.