Wednesday, November14, 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 6:49AMSunset 5:30PM Wednesday November 14, 2018 3:55 AM EST (08:55 UTC) Moonrise 12:37PMMoonset 11:31PM Illumination 37% Phase: Waxing Crescent; Moon at 6 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 Fernandina Beach To St. Augustine Fl Out 20 Nm- Waters From Fernandina Beach To St. Augustine Fl From 20 To 60 Nm- 313 Am Est Wed Nov 14 2018
.small craft advisory in effect through this evening...
Today..East northeast winds increasing to near 20 knots. Seas 5 to 7 feet with occasional seas up to 9 feet. Dominant period 8 seconds. Inland waters rough. A chance of showers and a slight chance of Thunderstorms.
Tonight..East winds 15 to 20 knots, becoming south southwest after midnight. Seas 5 to 6 feet with occasional seas up to 8 feet. Dominant period 8 seconds. Inland waters choppy. Showers likely and a slight chance of Thunderstorms.
Thursday..West northwest winds 15 to 20 knots. Seas 5 to 6 feet with occasional seas up to 8 feet. Dominant period 9 seconds. Inland waters choppy. A chance of showers in the morning.
Thursday night..Northwest winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 9 seconds. Inland waters choppy.
Friday..North northwest winds 15 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Inland waters a moderate chop.
Friday night..North winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
Saturday through Sunday..Northeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters mostly smooth.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 313 Am Est Wed Nov 14 2018
Synopsis.. A cold front will stall across north central florida today as low pressure develops over the far northeast gulf of mexico. A surge of northeasterly winds will result in occasional gale force wind gusts through early this evening over the georgia waters. Strong onshore winds will result in small craft advisory conditions for the waters adjacent to st. Augustine and points northward. Low pressure will strengthen over our waters this evening and will begin to accelerate northward along the carolina coast on Thursday. Winds will become offshore during the predawn hours on Thursday in the wake of a strong cold front, which will be accompanied by numerous showers and Thunderstorms overnight. Strong offshore winds will continue through Friday, with seas likely reaching small craft advisory levels in the offshore waters. High pressure will then gradually build eastward from the central gulf coast states on Friday, settling over the southeastern states this weekend. Winds and seas will subside below caution levels by late Friday night.


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 140246
afdjax
area forecast discussion
national weather service jacksonville fl
945 pm est Tue nov 13 2018

Update
A cold front is sagging southward through the forecast area this
evening with strongest low level forcing over the coastal waters.

Stronger, convective showers and storms formed over marine zones
and will continue moving east to southeast overnight as the front
pushes southward. Front is fairly shallow up through about
3000-4000 ft with southwest flow above that as mid level trough
lags well to our west across portions of tx where an upper level low
is located with trough extending northeast to the great lakes.

Weakening lift behind the front will allow light patches of rain
presently over the portions of southeast ga and northeast fl to
diminish overnight. Have adjusted temp and dewpoint trends as places
southeast ga already nearing their overnight lows. Have upped the
winds over the ERN zones where winds are 15-20 mph in the wake of
the cold front. Breezy winds expected along the coast overnight.

Aviation
For 00z tafs, conditions will continue to deteriorate for all
tafs through Wed as the cold front sinks further southward next 24
hrs. CIGS expected to become prevailing MVFR for all tafs next few
hours with occasional ifr cig developing as well. Prevailing ifr
cigs possible by around 12z Wed with more conditional ifr for sgj.

Winds will turn to the north and north- northeast near 15 kt
and gusts around 20-25 kt, with the stronger winds expected for ssi,
crg, and sgj.

Marine Winds and seas are increasing a little faster this
evening in the wake of the front so will make a few adjustments
to tweak winds and seas. Latest readings from 41008 show 17 kt and
seas of 4-5 ft and coastal observations are near 20 kt this hour.

Thus, this suggests starting the SCA headlines sooner and will go
with scec headline for the far southern zones as the wind shift
arrives there later tonight.

Rip currents: moderate to high risk is likely for area beaches
for Wednesday.

Preliminary point temps pops
Amg 56 59 49 59 70 60 80 30
ssi 64 65 56 64 50 60 70 50
jax 65 69 57 67 50 50 60 40
sgj 69 75 61 70 40 50 50 40
gnv 65 75 58 67 20 50 60 30
ocf 68 79 60 69 30 50 60 30

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory until 9 am est Thursday for coastal waters
from altamaha sound to fernandina beach fl out 20 nm-waters
from altamaha sound ga to fernandina beach fl from 20 to 60
nm.

Small craft advisory until 9 pm est Wednesday for coastal waters
from fernandina beach to st. Augustine fl out 20 nm-waters
from fernandina beach to st. Augustine fl from 20 to 60 nm.

Shashy zibura


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LTJF1 5 mi37 min 71°F 64°F
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 6 mi37 min NE 13 G 17 70°F 73°F1019.4 hPa
BLIF1 8 mi37 min NNE 8 G 9.9 69°F 1020.2 hPa69°F
DMSF1 9 mi37 min 74°F
FRDF1 - 8720030 - Fernandina Beach, FL 25 mi37 min NNW 7 G 12 67°F 72°F1020.4 hPa
41112 - Offshore Fernandina Beach, FL (132) 29 mi25 min 72°F4 ft
SAUF1 - St. Augustine, FL 33 mi55 min NNE 18 G 20 71°F 75°F1018.6 hPa (-0.4)
RCYF1 36 mi37 min 76°F
GTXF1 - Guana Tolomato Matanzas Reserve, FL 46 mi70 min N 8.9 71°F 1020 hPa68°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 mi62 minNE 510.00 miOvercast67°F64°F91%1018.9 hPa
Mayport Naval Station - Adm David L. McDonald Field, FL6 mi63 minNE 1110.00 miOvercast70°F64°F82%1018.8 hPa
Jacksonville Naval Air Station, FL14 mi2 hrsNE 810.00 miMostly Cloudy67°F63°F87%1019.1 hPa
Jacksonville International Airport, FL19 mi59 minNW 410.00 miOvercast63°F60°F90%1019.2 hPa
Fernandina Beach Municipal Airport, FL21 mi60 minNNE 710.00 miPartly Cloudy67°F63°F87%1019.3 hPa
Northeast Florida Regional Airport, FL24 mi59 minN 1210.00 miOvercast69°F66°F90%1018.9 hPa

Wind History from CRG (wind in knots)
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Last 24hrS4S4S3CalmSW4S9SW9SW12SW11SW8SW8S10SW6SE5NW5NW9NW8N14N11N6NE7N6NE4NE5
1 day agoNE8NE7NE9NE9E5NE6NE84E5E6SE8SE10SE12SE9SE8SE8SE5S3S5S5S6S3S4Calm
2 days agoN6NW7N6N8N3NE8NE13
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NE11NE11NE64NE10NE7

Tide / Current Tables for Pablo Creek, ICWW bridge, St. Johns River, Florida
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Pablo Creek
Click for Map
Wed -- 02:04 AM EST     3.73 feet High Tide
Wed -- 06:50 AM EST     Sunrise
Wed -- 07:52 AM EST     1.44 feet Low Tide
Wed -- 12:37 PM EST     Moonrise
Wed -- 02:31 PM EST     4.15 feet High Tide
Wed -- 05:29 PM EST     Sunset
Wed -- 08:51 PM EST     1.46 feet Low Tide
Wed -- 11:31 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.23.63.73.63.22.51.91.51.41.622.73.43.84.14.13.83.22.51.91.61.51.72.1

Tide / Current Tables for St. Johns River Entrance, Florida Current
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St. Johns River Entrance
Click for Map
Wed -- 02:39 AM EST     -0.00 knots Slack
Wed -- 05:05 AM EST     -1.57 knots Max Ebb
Wed -- 06:50 AM EST     Sunrise
Wed -- 09:11 AM EST     0.00 knots Slack
Wed -- 11:46 AM EST     1.84 knots Max Flood
Wed -- 12:37 PM EST     Moonrise
Wed -- 03:07 PM EST     -0.00 knots Slack
Wed -- 05:29 PM EST     Sunset
Wed -- 05:45 PM EST     -1.68 knots Max Ebb
Wed -- 10:03 PM EST     0.00 knots Slack
Wed -- 11:31 PM EST     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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1.410.5-0.3-1.2-1.6-1.5-1.2-0.9-0.20.81.61.81.50.90.1-0.9-1.6-1.7-1.6-1.4-0.9-0.10.9

Weather Map and Satellite Images
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wmap_A
GOES Local Image of Southeast    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 (3,6,7,8)
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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.