Thursday, November15, 2018 L-36.com


Marine Weather and Tides
Green Cove Springs, 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 6:51AMSunset 5:31PM Thursday November 15, 2018 6:42 PM EST (23:42 UTC) Moonrise 1:16PMMoonset 12:00AM Illumination 54% Phase: First Quarter Moon; Moon at 8 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- 241 Pm Est Thu Nov 15 2018
.small craft exercise caution...
Tonight..Northwest winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 9 seconds. Inland waters a moderate chop.
Friday..North northwest winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 9 seconds. Inland waters a moderate chop.
Friday night..North winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop.
Saturday..North northeast winds 5 to 10 knots. Seas 2 to 4 feet. Dominant period 9 seconds. Inland waters a light chop.
Saturday night..North northeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop. A chance of showers.
Sunday..North northeast winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters a light chop. A slight chance of showers.
Sunday night and Monday..North winds 10 to 15 knots. Seas 2 to 4 feet. Inland waters a moderate chop.
Monday night and Tuesday..North winds 5 to 10 knots. Seas 2 to 4 feet. Inland waters mostly smooth.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 241 Pm Est Thu Nov 15 2018
Synopsis.. High pressure will build to the west through Friday, then to the northwest and north over the weekend. A coastal trough is expected to develop Sunday into Sunday night, which could result in elevated conditions. A weak front will push through Sunday night into Monday clearing this trough to the east, as high pressure builds to the northwest through Tuesday.


7 Day Forecast for Marine Location Near Green Cove Springs, FL
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location: 29.99, -81.66     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 151922
afdjax
area forecast discussion
national weather service jacksonville fl
222 pm est Thu nov 15 2018

Frost potential inland tonight and Friday night...

Near term through Friday ...

low clouds in cold advection pattern in place following
frontal passage. High pressure will build to the west this
afternoon, helping to erode clouds from west to east tonight. Have
slowed the decreasing cloud trend for this afternoon into tonight,
based on satellite data. The additional cloud cover, coupled with
the strength of the cold air, has kept temperatures on the cool side
this afternoon. So, despite a slower exit to the clouds tonight,
with temperatures already cool, still anticipate lows into the 30s
across much of the region, except near the coast. If winds drop off
enough expecting inland patchy frost, but if winds continue to stir
this potential will be minimized. At this time trending toward
patchy frost mention inland.

For Friday, with the strong cold advection continuing, temperatures
will struggle again despite mainly sunny skies. Highs Friday will
have a hard time reaching 60 over SE ga, and into lower 60s for
ne fl.

Short term Friday night through Monday ...

high pressure will build to the north northwest Friday night through
Saturday. This will provide for mainly clear skies, with another
cold night Friday night, then readings moderating back to near
normal for Saturday. Inland patchy frost will possible once again
Friday night.

A weak coastal trough is expected to develop Saturday night into
Sunday, which will produce clouds over the eastern portion of the
forecast area, and the possibility for a few coastal showers.

A weak cold front will move southeast across the region Sunday night
into Monday which will help to push this trough further offshore. A
decreasing cloud trend is expected for Monday, with temperatures
near to slightly above seasonal averages.

Long term Monday night through Thursday ...

high pressure will build to the northwest Monday night into Tuesday.

This pattern will provide for sunshine with temperatures trending
slightly above normal. Strong high pressure will build to the
north Tuesday night through Thursday. Models are hinting at a
coastal trough developing late in this period, which could lead to
additional cloud cover, and possibly a few coastal showers into
Thursday. Near to a little above normal temperatures will be
expected Wednesday into Thursday.

Marine
High pressure will build to the west through Friday, then to the
northwest and north over the weekend. A coastal trough is expected
to develop Sunday into Sunday night, which could result in elevated
conditions. A weak front will push through Sunday night into Monday
clearing this trough to the east, as high pressure builds to the
northwest through Tuesday.

Rip currents: SE ga: low risk through Friday.

Ne fl: moderate risk through Friday.

Aviation 18z tafs...

mainly ifr CIGS this afternoon. Very slow rise observed over the
last couple of hours into MVFR CIGS for some TAF sites. Clearing
skies move in this evening within steady northwest flow at 5-10
knots.

Preliminary point temps pops
Amg 34 57 37 66 0 0 0 0
ssi 40 59 47 67 0 0 0 0
jax 38 60 43 70 0 0 0 0
sgj 42 61 49 70 0 0 0 0
gnv 37 61 40 70 0 0 0 0
ocf 40 62 42 72 0 0 0 0

Jax watches warnings advisories
Fl... None.

Ga... None.

Am... Small craft advisory until 5 am est Friday for waters from
altamaha sound ga to fernandina beach fl from 20 to 60 nm-
waters from fernandina beach to st. Augustine fl from 20 to
60 nm-waters from st. Augustine to flagler beach fl from 20
to 60 nm.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
RCYF1 14 mi42 min 73°F
SAUF1 - St. Augustine, FL 23 mi42 min NNW 4.1 G 6 59°F 72°F1017.2 hPa (+0.9)
DMSF1 28 mi42 min 73°F
LTJF1 29 mi42 min 57°F 51°F
BLIF1 29 mi42 min NW 8.9 G 11 1018.2 hPa (+1.1)
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 31 mi42 min NW 7 G 8 57°F 71°F1017.5 hPa (+1.3)
GTXF1 - Guana Tolomato Matanzas Reserve, FL 32 mi57 min NW 2.9 60°F 1018 hPa56°F
FRDF1 - 8720030 - Fernandina Beach, FL 48 mi42 min WNW 7 G 13 70°F1018.2 hPa (+1.3)

Wind History for I-295 Bridge, St Johns River, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Jacksonville Naval Air Station, FL17 mi49 minWNW 510.00 miMostly Cloudy58°F51°F78%1016.9 hPa
Northeast Florida Regional Airport, FL18 mi46 minW 310.00 miPartly Cloudy58°F53°F84%1017.2 hPa
Cecil Airport, FL20 mi52 minNW 510.00 miMostly Cloudy55°F51°F88%1017.3 hPa
Keystone Airpark, FL23 mi47 minWNW 710.00 miPartly Cloudy55°F51°F88%1017.3 hPa

Wind History from NIP (wind in knots)
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Last 24hrNE14NE12NE13N10NE6N9N7N6NW12NW13NW10NW14
G23
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G18
W10NW8W11W8NW9NW10NW5W5
1 day agoNW7NW11N16N19N13N12N14NE8NE7N8N11NE8N11N10N11N12N19NE14NE13N17
G22
NE15NE16N16NE14
2 days agoSE8----------S5S5S5S7S7S8S4S7S8S9S10S10S8S9S5S6W7NW8

Tide / Current Tables for Green Cove Springs, St. Johns River, Florida
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Green Cove Springs
Click for Map
Thu -- 01:08 AM EST     4.26 feet Low Tide
Thu -- 06:38 AM EST     4.83 feet High Tide
Thu -- 06:51 AM EST     Sunrise
Thu -- 09:54 AM EST     First Quarter
Thu -- 01:15 PM EST     Moonrise
Thu -- 01:17 PM EST     4.30 feet Low Tide
Thu -- 05:30 PM EST     Sunset
Thu -- 07:00 PM EST     4.97 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.34.34.34.54.74.84.84.84.74.64.54.44.44.34.34.54.84.94.954.94.84.64.5

Tide / Current Tables for Black Creek, S.C.L. RR. bridge, Florida
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Black Creek
Click for Map
Thu -- 01:09 AM EST     4.90 feet Low Tide
Thu -- 05:54 AM EST     5.48 feet High Tide
Thu -- 06:52 AM EST     Sunrise
Thu -- 09:54 AM EST     First Quarter
Thu -- 01:16 PM EST     Moonrise
Thu -- 01:19 PM EST     4.91 feet Low Tide
Thu -- 05:30 PM EST     Sunset
Thu -- 06:24 PM EST     5.59 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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54.955.25.45.55.55.45.35.25554.94.95.15.45.55.65.65.55.35.25.1

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 (18,4,5,8)
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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.