Thursday, March21, 2019 L-36.com


Marine Weather and Tides
Dock Junction, GA

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 7:27AMSunset 7:39PM Thursday March 21, 2019 6:28 PM EDT (22:28 UTC) Moonrise 7:33PMMoonset 7:07AM Illumination 99% 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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AMZ450 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- 305 Pm Edt Thu Mar 21 2019
.small craft exercise caution...
Tonight..West northwest winds 15 to 20 knots. Seas 4 to 6 feet with occasional seas up to 8 feet. Dominant period 10 seconds. Inland waters choppy.
Friday..West winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 10 seconds. Inland waters a light chop.
Friday night..Northwest winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 10 seconds. Inland waters a light chop.
Saturday..Northeast winds 5 to 10 knots. Seas 2 to 3 feet. Dominant period 10 seconds. Inland waters a light chop.
Saturday night..East winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop.
Sunday..East southeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop.
Sunday night..South southeast winds 5 to 10 knots. Seas 2 to 3 feet. Inland waters a light chop.
Monday..South winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a light chop.
Monday night..West southwest winds 10 to 15 knots. Seas 2 to 3 feet. Inland waters a moderate chop. A chance of showers.
Tuesday..West northwest winds 10 to 15 knots becoming north in the afternoon. Seas 2 to 3 feet. Inland waters a moderate chop. A chance of showers.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 305 Pm Edt Thu Mar 21 2019
Synopsis.. An area of low pressure will push offshore north of the waters tonight and increase the winds and seas. High pressure will build northwest of the waters over the weekend with diminishing winds and seas.
Gulf stream.. The approximate location of the west wall of the gulf stream as of mar 21, 2019 at 1200 utc... 59 nautical miles east of flagler beach. 72 nautical miles east of saint augustine beach. 82 nautical miles east of jacksonville beach. 94 nautical miles east southeast of st simons island. This data courtesy of the naval oceanographic office.


7 Day Forecast for Marine Location Near Dock Junction, GA
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location: 31.21, -81.55     debug


Area Discussion for - Jacksonville, FL
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Fxus62 kjax 212031
afdjax
area forecast discussion
national weather service jacksonville fl
431 pm edt Thu mar 21 2019

Near term through Friday night
The combination of a developing storm system in the
mid atlantic and high pressure building in across
the lower miss valley will provide a dry west to
northwest flow across the area. The gradient will
relax some tonight and Friday as the low continues
to move northeast resulting in less winds than today.

Afternoon temps will be near seasonal norms but
nighttime lows will be in the lower mid 40s inland
and upper 40s to near 50 coast which is below normal
for this time of year.

Short term Saturday through Sunday night
Deep layer ridging will be across the area Saturday
with the low level high just north of the area.

This will provide a light north to northeast flow
across the area and a continuation of dry conditions
with near seasonal afternoon temps and cooler than
normal nighttime lows. The deep layer ridge will move
east of the area Sunday as the next upper trough and
cold front approaches. This results in a warming
trend Sunday as the low level flow becomes southeast.

This may bring in a few coastal clouds in the afternoon
but otherwise continued dry.

Long term Monday through Thursday
An approaching upper trough and cold front will approach
the area early next week bringing a chance of showers
to the area Monday night into Tuesday. A surge of
northeast winds behind the front may bring in coastal
clouds with a few showers Wednesday but otherwise
cooler and drier.

Aviation Gusty west winds will diminish this eve.

PrevailingVFR.

Marine The combination of deepening low pressure to the
north and high pressure building in from the west will provide
sca conditions to the offshore waters into Friday morning with
scec near shore. The gradient decreases some Friday... As the low
lifts north. High pressure builds into the region over the weekend
with no headlines expected. A cold front will cross the waters
Tuesday bringing possible scec to the offshore Monday night.

Rip currents: low risk anticipated Saturday.

Fire weather Breezy west winds around 15 mph with
gusts to 20 mph will combine with minimum rh values of
25 to 30 percent and high erc values to produce a high
fire danger today. Conditions appear to just meet red flag
warning criteria for much of northeast fl and elevated
fire danger for southeast ga. Breezy conditions and high
mixing heights will result in high dispersions. Critically
low rh values are expected again on Friday with sustained
winds near 10 mph with elevated to high dispersions.

Preliminary point temps pops
Amg 42 72 42 73 0 0 0 0
ssi 48 68 50 67 0 0 0 0
jax 44 75 44 73 0 0 0 0
sgj 49 72 49 71 0 0 0 0
gnv 43 75 41 76 0 0 0 0
ocf 44 76 43 77 0 0 0 0

Jax watches warnings advisories
Fl... Red flag warning until 7 pm edt this evening for alachua-baker-
bradford-clay-coastal duval-coastal nassau-columbia-
gilchrist-hamilton-inland duval-inland nassau-marion-putnam-
suwannee-union.

Ga... None.

Am... Small craft advisory until 11 am edt 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.

Pp pw kb


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 20 mi89 min W 20 71°F 1009 hPa (-3.0)39°F
FRDF1 - 8720030 - Fernandina Beach, FL 37 mi47 min WSW 15 G 20 72°F 64°F1010.7 hPa
41112 - Offshore Fernandina Beach, FL (132) 37 mi29 min 62°F4 ft
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 38 mi39 min S 14 G 18 64°F 62°F4 ft1008.9 hPa (-2.7)53°F

Wind History for Fernandina Beach, FL
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick / Glynco, GA6 mi54 minW 14 G 2710.00 miFair72°F35°F27%1009.8 hPa
Brunswick, Malcolm McKinnon Airport, GA10 mi36 minW 16 G 2410.00 miFair72°F36°F27%1009.5 hPa

Wind History from BQK (wind in knots)
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Last 24hrE7E4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW3CalmW5W5W9SW11
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1 day agoNE11NE9NE6NE10NE12
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NE8N5N4N6N5N7N7N6N7N7N7N5N5N8NE3N6NW3E6
2 days agoSE5S4CalmCalmCalmCalmCalmNW3NW7N3N7N8NE7NE12NE14
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Tide / Current Tables for Crispen Island, Turtle River, Georgia
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Crispen Island
Click for Map
Thu -- 04:04 AM EDT     -1.70 feet Low Tide
Thu -- 07:29 AM EDT     Sunrise
Thu -- 08:06 AM EDT     Moonset
Thu -- 10:40 AM EDT     9.69 feet High Tide
Thu -- 04:26 PM EDT     -1.43 feet Low Tide
Thu -- 07:38 PM EDT     Sunset
Thu -- 08:33 PM EDT     Moonrise
Thu -- 11:08 PM EDT     9.73 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.65.12.1-0.5-1.7-1.10.83.368.29.49.68.46.23.30.5-1.2-1.20.22.55.17.49.19.7

Tide / Current Tables for Mackay River (Daymark 239), Georgia
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


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.