Wednesday, December12, 2018 L-36.com


Marine Weather and Tides
Neptune Beach, FL

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 7:11AMSunset 5:27PM Wednesday December 12, 2018 11:03 AM EST (16:03 UTC) Moonrise 11:14AMMoonset 10:15PM Illumination 25% Phase: Waxing Crescent; Moon at 5 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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AMZ452 Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 847 Am Est Wed Dec 12 2018
Rest of today..Northwest winds 5 to 10 knots becoming south southwest. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Inland waters a light chop.
Tonight..South southeast winds 5 to 10 knots becoming east northeast after midnight. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters smooth.
Thursday..East winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop. A chance of showers.
Thursday night..South southeast winds 20 to 25 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 6 seconds. Inland waters choppy. Showers likely and a slight chance of Thunderstorms.
Friday..South winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters choppy. Showers and a slight chance of Thunderstorms.
Friday night..Southwest winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop. Showers.
Saturday..West southwest winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a moderate chop. A chance of showers.
Saturday night..West winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop. A slight chance of showers.
Sunday..West northwest winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 847 Am Est Wed Dec 12 2018
Synopsis.. High pressure will move overhead today, then to the northeast tonight into Thursday. A cold front will move east across the region Friday, with the associated low pressure system lingering near the region through Friday night. The low will move to the northeast over the weekend, as high pressure builds to the west.
Gulf stream.. The approximate location of the west wall of the gulf stream as of dec 11, 2018 at 1200 utc... 62 nautical miles east of flagler beach. 72 nautical miles east of saint augustine beach. 78 nautical miles east of jacksonville beach. 96 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Neptune Beach, FL
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location: 30.31, -81.43     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 121405
afdjax
area forecast discussion
national weather service jacksonville fl
905 am est Wed dec 12 2018

Update
Freeze frost products have expired this morning as temps will
climb quickly through the 30s 40s, while low level patchy fog
along inland lakes waterways river basins will dissipate by
the 10am time frame. Mostly sunny with high clouds today and max
temps close to climo values in the lower 60s. For tonight... High
clouds will continue to stream in from the west aloft and temps
not as cool and closer to climo values, but still expect some
possible mid to upper 30s across inland SE ga and the suwannee
river valley of north fl, but with more cloud cover not expecting
much in the way of patchy frost. Lows in the 40s are expected
elsewhere.

Fyi... With lows still close to 30 degrees across SE ga this
morning and upcoming stretch of generally above normal temps the
next couple of weeks, will continue the frost freeze program this
winter for SE ga, until a more widespread "significant" freeze
occurs.

Aviation
Vfr through the period with mainly high clouds increasing tonight.

Marine
Light offshore flow will become onshore E SE late tonight into
Thursday. Lingering seas of 4-6 ft offshore today and will keep
the small craft exercise caution (scec) headlines for one more
update cycle this morning.

Preliminary point temps pops
Amg 60 35 63 56 0 0 10 80
ssi 59 46 64 58 0 0 30 70
jax 62 41 67 60 0 0 30 60
sgj 62 48 69 63 0 0 40 50
gnv 62 42 69 61 0 0 20 70
ocf 64 43 71 61 0 0 20 60

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... None.

Hess mcginnis


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 5 mi45 min 51°F 38°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 6 mi45 min Calm G 0 52°F 59°F1027.3 hPa
BLIF1 8 mi45 min N 1.9 G 2.9 49°F 1028.3 hPa36°F
DMSF1 9 mi45 min 59°F
FRDF1 - 8720030 - Fernandina Beach, FL 25 mi45 min NNW 2.9 G 6 49°F 57°F1027.7 hPa
41112 - Offshore Fernandina Beach, FL (132) 29 mi33 min 57°F3 ft
SAUF1 - St. Augustine, FL 33 mi63 min W 2.9 G 4.1 53°F 59°F1027.6 hPa (+2.1)
RCYF1 36 mi45 min 57°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 46 mi78 min W 2.9 48°F 1029 hPa46°F

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Craig Municipal Airport, FL5 mi70 minVar 310.00 miFair49°F37°F64%1027.3 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL6 mi2.2 hrsNW 310.00 miPartly Cloudy46°F39°F77%1026.8 hPa
Jacksonville Naval Air Station, FL14 mi70 minVar 310.00 miMostly Cloudy47°F39°F74%1027 hPa
Jacksonville International Airport, FL19 mi67 minN 410.00 miMostly Cloudy48°F36°F63%1027 hPa
Fernandina Beach Municipal Airport, FL21 mi68 minW 410.00 miFair48°F39°F73%1027.1 hPa
Northeast Florida Regional Airport, FL24 mi67 minN 010.00 miFair49°F41°F74%1027.6 hPa

Wind History from CRG (wind in knots)
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Last 24hrNW10NW9N9NW8NW7NW6CalmCalmCalmCalmCalmNW6W6NW5CalmCalmCalmCalmCalmCalmCalmN43Calm
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N11NW9NW9NW9NW14NW10NW9NW9NW7NW10NW11NW9
G16
NW8W11

Tide / Current Tables for Pablo Creek, ICWW bridge, St. Johns River, Florida
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Pablo Creek
Click for Map
Wed -- 12:42 AM EST     3.51 feet High Tide
Wed -- 06:22 AM EST     0.74 feet Low Tide
Wed -- 07:12 AM EST     Sunrise
Wed -- 11:13 AM EST     Moonrise
Wed -- 01:04 PM EST     3.98 feet High Tide
Wed -- 05:26 PM EST     Sunset
Wed -- 07:13 PM EST     0.80 feet Low Tide
Wed -- 10:15 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.43.53.22.51.71.10.80.81.21.82.63.33.843.83.32.41.610.80.91.322.7

Tide / Current Tables for St. Johns River Entrance, Florida Current (2) (expired 1999-12-31)
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St. Johns River Entrance
Click for Map
Wed -- 01:20 AM EST     -0.00 knots Slack
Wed -- 04:02 AM EST     -1.99 knots Max Ebb
Wed -- 07:12 AM EST     Sunrise
Wed -- 08:38 AM EST     0.00 knots Slack
Wed -- 11:10 AM EST     1.81 knots Max Flood
Wed -- 11:13 AM EST     Moonrise
Wed -- 01:55 PM EST     -0.00 knots Slack
Wed -- 04:38 PM EST     -2.08 knots Max Ebb
Wed -- 05:25 PM EST     Sunset
Wed -- 09:39 PM EST     0.00 knots Slack
Wed -- 10:14 PM EST     Moonset
Wed -- 11:39 PM EST     1.36 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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10.3-0.7-1.6-2-1.8-1.3-0.8-0.40.31.21.81.60.9-0.1-1.2-2-2.1-1.8-1.3-0.9-0.50.31.2

Weather Map and Satellite Images
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wmap_A
GOES Local Image of    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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Jacksonville, FL (11,2,3,4)
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Ground Weather Radar Station Jacksonville, FL
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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.