Tuesday, October15, 2019 L-36.com


Marine Weather and Tides
Green Cove Springs, FL

Version 3.4
NOTICE
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.
6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 7:27AMSunset 6:57PM Tuesday October 15, 2019 7:15 AM EDT (11:15 UTC) Moonrise 7:21PMMoonset 7:54AM Illumination 97% Phase: Waning Gibbous; Moon at 16 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 Expires:201910151600;;731218 Fzus52 Kjax 150700 Cwfjax Coastal Waters Forecast For Northeast Florida/southeast Georgia National Weather Service Jacksonville Fl 300 Am Edt Tue Oct 15 2019 Atlantic Coastal Waters From Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm. Seas Are Provided As A Range Of The Average Height Of The Highest 1/3 Of The Waves, Along With The Occasional Height Of The Average Highest 1/10 Of The Waves. Amz450-452-454-151600- 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- 300 Am Edt Tue Oct 15 2019
Today..West winds around 5 knots becoming east southeast in the afternoon. Seas 2 to 3 feet. Dominant period 10 seconds. Inland waters smooth. Showers likely and a slight chance of Thunderstorms.
Tonight..South southeast winds 15 to 20 knots becoming south southwest after midnight. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 4 seconds. Inland waters choppy. Showers likely and a slight chance of Thunderstorms.
Wednesday..West southwest winds 15 to 20 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 5 seconds. Inland waters a moderate chop. Showers likely and a slight chance of Thunderstorms.
Wednesday night..Northwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds becoming 4 seconds after midnight. Inland waters a moderate chop. A chance of showers.
Thursday..North northwest winds 10 to 15 knots. Seas 2 to 3 feet. Dominant period 9 seconds. Inland waters a light chop.
Thursday night..North northwest winds 5 to 10 knots. Seas 2 to 3 feet.
Friday..Northeast winds 5 to 10 knots. Seas 1 to 2 feet.
Friday night and Saturday..East southeast winds 10 to 15 knots. Seas 2 to 4 feet. A chance of showers. A slight chance of Thunderstorms in the morning.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 300 Am Edt Tue Oct 15 2019
Synopsis.. A stalled frontal boundary will remain near the georgia waters through today before lifting north of our region as a warm front tonight. A strong cold front will cross our local waters Wednesday evening. Showers and Thunderstorms will accompany the frontal passage, followed by northwesterly winds in the wake of the front Wednesday night. Winds and seas will diminish by late in the week as high pressure builds into the region.
Gulf stream.. The approximate location of the west wall of the gulf stream as of oct 10, 2019 at 1200 utc... 59 nautical miles east of flagler beach. 72 nautical miles east of saint augustine beach. 87 nautical miles east of jacksonville beach. 97 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


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 150806
afdjax
area forecast discussion
national weather service jacksonville fl
406 am edt Tue oct 15 2019

Near term [through tonight]
As high pressure moves across the eastern seaboard... A cold
front nudges south before stalling across SE ga today. Short
waves traversing the front will give added lift leading to
numerous showers embedded storms mainly north of the i-10
corridor with scattered showers isolated storms to the south.

Surface low rides the frontal boundary tonight leading to
continued scattered numerous showers isolated storms
mainly north of the i-10 corridor tonight. Front lifts
north of the area by late tonight as the surface low
tracks to the ne. Shear increases by late today into
tonight with GFS forecast model soundings indicating 0-3 km
helicities of 200-300 mainly north of the i-10 corridor although
instability will be limited by clouds pcp. Expecting just
isolated mainly elevated storms into tonight. However... Total
rainfall amounts of 1 to 2 inches with locally higher amounts
appear likely into tonight across SE ga... With lower amounts
to the south. Wpc does have most of SE ga in a marginal risk
of excessive rainfall. High temps will be kept mostly in the
70s across SE ga due to clouds and rain with 80s across NE fl.

Short term [Wednesday through Thursday night]
Showers with isolated thunderstorms will continue over SE ga
Wednesday... While spreading into NE fl on Wednesday as an upper
low over the northern plains moves to the east coast amplifying
an upper trough which will drive a cold front across the area.

Rain will end Wednesday evening as the cold front pushes south
of the area. Clearing and cooler conditions for Thursday with
lower humidity as high pressure builds in from the nw. Much
cooler temps Thursday night with lows ranging from near 50
across inland SE ga to the 50s inland NE fl to 60s coast.

Long term [Friday through Monday]
Clouds will increase across NE fl on Friday as an upper
disturbance traverses east across the gulf coast. The
disturbance will move across NE fl on Saturday bringing a
chance of showers with isolated storms mainly across NE fl.

Another upper disturbance and associated surface low will
track across south ga late Sunday with the associated
cold front approaching the area Monday resulting in
a chance of showers and isolated storms area wide.

Temps will be near normal Friday and above normal
Saturday through Monday.

Aviation
[through 06z Wednesday]
presentlyVFR conditions with just some mid-level clouds spreading
over the area. Weak upper wave approaches southern ga toward dawn,
leading to scattered showers breaking out from roughly i-10 corridor
northward... With activity spreading E and NE toward kssi area.

Another wave of shower development expected later in the day tue
in roughly the same area... Likely with more widespread showers and
isolated t-storms across SRN ga including the kssi area.

For 06z tafs I have categorical rain chances kssi with MVFR cigs
developing throughout the day today. Further S at kjax, kcrg, kvqq,
i have tempo for scattered showers and areas of MVFR cigs. For
our more southern TAF sites at kgnv and ksgj... I maintainVFR
conditions with mainly a mid-level cloud deck... With latest
guidance suggesting showers will be confined to areas to the
north.

Winds will be light and a bit variable this morning, becoming
easterly 5-10 kts in the afternoon.

Marine
A stalled frontal boundary will remain near the
georgia waters through today before lifting north of the waters
as a warm front tonight. A strong cold front will cross our
local waters Wednesday evening. Showers and thunderstorms will
accompany the frontal passage followed by northwesterly winds in
the wake of the front Wednesday night and Thursday. Winds and
seas will increase Tuesday night through Wednesday night to near
advisory conditions. Winds and seas will subside Thursday through
Saturday as high pressure builds into the region.

Rip currents: persisting long period swells will result in a
moderate risk through Wednesday.

Fire weather
A stalled frontal boundary in combination with fast moving upper
disturbances will lead to numerous showers with isolated
thunderstorms across southeast georgia today with isolated to
scattered showers and isolated storms elsewhere. The widespread
clouds and precipitation across southeast georgia will result in
low mixing heights which will lead to low dispersions there today.

The front will lift north as a warm front later tonight as a cold
front begins to approach the area on Wednesday leading to
scattered showers and isolated thunderstorms area wide. Transport
winds and mixing heights will increase Wednesday leading to
improved dispersions. The cold front will move through the area
Wednesday night ushering in a slightly cooler and drier air mass
for Thursday. Min rh's will fall to around 35 percent along and
north of the i-10 corridor.

Hydrology River levels will remain elevated along the st johns
river with continued minor flooding in putnam county during high
tide into tonight.

Preliminary point temps pops
Amg 75 69 81 51 73 90 80 60 0 0
ssi 77 72 83 60 75 80 70 60 10 0
jax 82 72 86 60 78 50 50 50 10 0
sgj 82 73 86 65 78 30 40 40 20 0
gnv 87 73 86 62 80 30 50 50 20 0
ocf 88 72 86 66 82 20 40 50 20 10

Jax watches warnings advisories
Fl... Coastal flood advisory until 6 am edt Wednesday for putnam.

Ga... None.

Am... None.



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAUF1 - St. Augustine, FL 23 mi15 min WSW 2.9 G 4.1 73°F 80°F1018.2 hPa (+0.4)
DMSF1 28 mi45 min 80°F
NFDF1 28 mi45 min WSW 2.9 G 5.1 73°F 1019.6 hPa
BLIF1 29 mi45 min SSW 4.1 G 5.1 76°F 1019.1 hPa76°F
LTJF1 29 mi45 min 75°F
41117 31 mi15 min 80°F2 ft
MYPF1 - 8720218 - Mayport (Bar Pilots Dock), FL 31 mi45 min WSW 5.1 G 5.1 75°F 80°F1018.4 hPa
GTXF1 - Guana Tolomato Matanzas Reserve, FL 32 mi90 min SW 1.9 72°F 1019 hPa71°F
FRDF1 - 8720030 - Fernandina Beach, FL 48 mi45 min N 7 G 12 78°F 79°F1019.2 hPa

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 mi22 minVar 310.00 miOvercast74°F69°F85%1017.9 hPa
Northeast Florida Regional Airport, FL18 mi19 minN 010.00 miFair72°F70°F94%1018.4 hPa
Cecil Airport, FL20 mi25 minN 05.00 miLight Drizzle72°F69°F94%1017.9 hPa
Keystone Airpark, FL23 mi20 minSSW 48.00 miMostly Cloudy73°F71°F94%1018.3 hPa

Link to 5 minute data for KNIP

Wind History from NIP (wind in knots)
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Last 24hrCalmCalmW4W4SW3SE4E4SE5SE3SE6SE8SE10--S7S6S6S6S4W5SW6SW5SW4SW43
1 day agoW3SW4S6S7S8SW5S4SE5SE11SE11SE12SE11SE7SE9S8S7S7S8W5W4W3CalmW4W3
2 days agoNW3NW5N6N6N8N7NE11E8NE7E10E8E8SE8SE6SE6SE6S6S7S6S7S5SW3SW3W4

Tide / Current Tables for Green Cove Springs, St. Johns River, Florida
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Green Cove Springs
Click for Map
Tue -- 02:42 AM EDT     4.94 feet High Tide
Tue -- 07:28 AM EDT     Sunrise
Tue -- 08:54 AM EDT     Moonset
Tue -- 09:20 AM EDT     4.19 feet Low Tide
Tue -- 03:16 PM EDT     5.03 feet High Tide
Tue -- 06:56 PM EDT     Sunset
Tue -- 08:20 PM EDT     Moonrise
Tue -- 09:54 PM EDT     4.26 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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4.84.94.94.94.84.64.54.34.24.24.24.44.74.95554.84.64.54.44.34.34.4

Tide / Current Tables for Black Creek, S.C.L. RR. bridge, Florida
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Black Creek
Click for Map
Tue -- 02:11 AM EDT     5.55 feet High Tide
Tue -- 07:28 AM EDT     Sunrise
Tue -- 08:54 AM EDT     Moonset
Tue -- 09:14 AM EDT     4.87 feet Low Tide
Tue -- 02:30 PM EDT     5.68 feet High Tide
Tue -- 06:56 PM EDT     Sunset
Tue -- 08:20 PM EDT     Moonrise
Tue -- 09:58 PM EDT     4.86 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.45.55.55.55.45.254.94.94.94.95.15.45.65.75.75.65.45.254.94.94.94.9

Weather Map
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wmap_A
GEOS 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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Wind Forecast for Jacksonville, FL (7,2,3,4)
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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.