Saturday, March25, 2017 L-36.com


Marine Weather and Tides
Darien, GA

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:20AMSunset 7:42PM Saturday March 25, 2017 7:31 AM EDT (11:31 UTC) Moonrise 4:49AMMoonset 4:20PM Illumination 5% Phase: Waning Crescent; Moon at 27 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- 404 Am Edt Sat Mar 25 2017
Today..East southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Inland waters a moderate chop.
Tonight..Southeast winds 10 to 15 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Inland waters a light chop.
Sunday..Southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 8 seconds. Inland waters a light chop.
Sunday night..South southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Dominant period 9 seconds. Inland waters a light chop.
Monday..Southeast winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters smooth.
Monday night..South southeast winds 5 to 10 knots becoming south southwest after midnight. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop. A slight chance of showers and Thunderstorms.
Tuesday..South winds 5 to 10 knots. Seas 3 to 5 feet with occasional seas up to 6 feet. Inland waters a light chop.
Tuesday night..South winds 10 to 15 knots becoming southwest 5 to 10 knots after midnight. Seas 2 to 4 feet. Inland waters a light chop.
Wednesday..South southwest winds 5 to 10 knots becoming southeast. Seas 2 to 4 feet. Inland waters a light chop.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 404 Am Edt Sat Mar 25 2017
Synopsis.. Strong high pressure centered just offshore of the mid-atlantic coast will continue moving slowly eastward through this weekend while gradually weakening. Onshore winds will continue through the weekend...with speeds and seas gradually diminishing. A weakening cold front will enter the southeastern states on Sunday.

7 Day Forecast for Marine Location Near Darien, GA
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location: 31.32, -81.36     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 250746
afdchs
area forecast discussion
national weather service charleston sc
346 am edt Sat mar 25 2017

Synopsis
Atlantic high pressure will weaken into early next week.

A weak cold front should then stall over the area during the middle
of next week, then shift back north as a warm front late in the week.

Near term /through tonight/
Based on the request of the USFS the dense smoke advisory will
remain across portions of the frances marion national forest until
10 am. Today into tonight, the forecast area will remain between
high pressure centered near bermuda and a cold front over the
southern mississippi river valley. The sfc pattern will support
onshore flow across the coastal plain of sc and ga through tonight.

Similar to yesterday, a sea breeze should develop and move west
across the coastal counties between 18-20z. In the hourly temps, i
will indicate that temps across the tidewater areas will peak around
18z, then slowly cool during the mid to late afternoon. High temps
are forecast to range a degree or two over Friday. Clouds should
range around partly sunny through the day, with no mentionable pops.

After sunset, high clouds should increase across the forecast area
and the cold front pushes east of the mississippi. Sky forecast will
feature cloud cover becoming mostly cloudy across inland ga around
midnight, spreading to the i-95 corridor during the late night
hours. Using a blend of guidance, low temperatures are forecast to
generally range in the upper 50s.

Short term /Sunday through Tuesday/
Atlantic high pressure will weaken through the period. Some
shortwave energy will shift through on Sunday on the southeast
periphery of deep low pressure over the midwest with additional
energy approaching Monday ahead of a secondary upper trough. A weak
cold front should then approach Wednesday but likely stall out over
or near the area. This pattern will lead to warmer than normal
temperatures, likely hitting the lower 80s inland Sunday/Monday with
some mid 80s Tuesday. Onshore winds will keep the beach areas much
cooler, mainly in the 60s. Some showers and thunderstorms are
expected, mainly in the afternoon on Sunday and Monday when
instability will peak and the sea breeze boundary will be present.

No real significant rainfall and/or severe weather is anticipated at
this time however.

Long term /Tuesday night through Friday/
A weakening cold front looks to approach the area mid week before
stalling and eventually shifting back northward as a warm front. By
Friday forecast uncertainty grows as the 00z/25 GFS is showing a
potent upper low moving through the region which would make for more
unsettled weather than the preferred ECMWF solution which is more in
line with wpc. At this point we think some showers and thunderstorms
will be possible, mainly each afternoon starting Thursday, with
temperatures running above normal.

Aviation /08z Saturday through Wednesday/
Vfr. Through the 6z TAF period, sfc high pressure will remain
centered over bermuda as a cold front cross the mississippi
river valley. This pattern will maintain SE winds across the
terminals through most of the daylight hours. However, a weak
sea breeze is expected to result in shift from the south-
southeast this afternoon. Few to sct clouds may have bases
within MVFR levels this morning into early this afternoon.

However, based on MOS and forecast soundings indicate that
ceilings will remainVFR.

Extended aviation outlook: low risk of restrictions, mainly through
Tuesday due to early morning low clouds/fog and afternoon
showers/tstms.

Marine
Today and tonight, large sfc high pressure centered near bermuda
will cover the georgia and south carolina waters through tonight.

East-southeast flow will range around 10 kts near shore, closer to
15 kts across amz374. Wave heights are forecast to remain between 3
to 4 feet within 20 nm, 4 to 5 feet beyond 20 nm. Conditions will
remain below small craft advisory criteria.

Sunday through Thursday: no significant concerns with atlantic high
pressure generally in control until a weakening cold front moves
into the area Wednesday. Seas look to be near 6 feet near the gulf
stream through Tuesday as swell increases from low pressure
northeast of the bahamas. Thus, an advisory will be possible across
the outer ga waters. Otherwise winds should mainly be 20 knots or
less.

Chs watches/warnings/advisories
Ga... None.

Sc... Dense smoke advisory until 10 am edt this morning for scz045.

Marine... None.

Near term... Ned
short term... Rjb
long term... Rjb
aviation... Ned/rjb
marine... Ned/rjb


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 8 mi92 min SE 5.1 64°F 1024 hPa (-2.0)58°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 27 mi42 min SE 5.8 G 7.8 65°F 62°F5 ft1024.3 hPa (-0.9)58°F
41112 - Offshore Fernandina Beach, FL (132) 42 mi32 min 64°F5 ft
FRDF1 - 8720030 - Fernandina Beach, FL 45 mi44 min Calm G 1.9 64°F 65°F1024.5 hPa

Wind History for Fernandina Beach, FL
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NE8
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick / Glynco, GA7 mi37 minESE 410.00 miFair64°F60°F88%1024.7 hPa
Brunswick, Malcolm McKinnon Airport, GA12 mi39 minESE 510.00 miFair64°F57°F81%1024.4 hPa

Wind History from BQK (wind in knots)
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Last 24hrCalmNE3E10
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E9E10NE8NE4NE3CalmCalmCalmCalmCalmCalmSE3SE5SE4SE4
1 day agoNE14
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NE7NE7NE3NE3NE3CalmCalmN3Calm
2 days agoW9W9NW10
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NE14NE13E7NE8NE8NE9NE8NE10NE9NE10
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Tide / Current Tables for Jones Creek entrance, Hampton River, Georgia
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Jones Creek entrance
Click for Map
Sat -- 12:47 AM EDT     0.19 feet Low Tide
Sat -- 05:48 AM EDT     Moonrise
Sat -- 07:22 AM EDT     Sunrise
Sat -- 07:51 AM EDT     7.48 feet High Tide
Sat -- 01:21 PM EDT     -0.05 feet Low Tide
Sat -- 05:20 PM EDT     Moonset
Sat -- 07:40 PM EDT     Sunset
Sat -- 08:08 PM EDT     7.55 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.60.20.823.65.16.47.27.56.85.33.31.30.10.11.12.74.467.17.57.15.63.6

Tide / Current Tables for Old Tower, Sapelo Island, Georgia
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Old Tower
Click for Map
Sat -- 12:48 AM EDT     0.23 feet Low Tide
Sat -- 05:48 AM EDT     Moonrise
Sat -- 07:00 AM EDT     7.12 feet High Tide
Sat -- 07:22 AM EDT     Sunrise
Sat -- 01:24 PM EDT     -0.07 feet Low Tide
Sat -- 05:19 PM EDT     Moonset
Sat -- 07:16 PM EDT     7.15 feet High Tide
Sat -- 07:40 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.50.20.92.34.15.66.77.16.85.74.32.5100.11.33.256.47.16.964.52.8

Weather Map and Satellite Images
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Weather Map
wmap_A
IR Satellite Image from GEOS
east_satellite

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Charleston, SC (7,2,3,4)
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Ground Weather Radar Station Jacksonville, FL
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weather_mapweather_map weather_map

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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.