Wednesday, September19, 2018 L-36.com


Marine Weather and Tides
Riceboro, GA

Version 3.4
What's New / NOTES
9/17/2018 XTide broke when 1and1 "upgraded" my server. It has been esculated. I am sorry for the problem.

Sunrise 7:12AMSunset 7:27PM Wednesday September 19, 2018 11:18 PM EDT (03:18 UTC) Moonrise 3:24PMMoonset 1:10AM Illumination 77% Phase: Waxing Gibbous; Moon at 10 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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AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm, Including Grays Reef National Marine Sanctuary- 1038 Pm Edt Wed Sep 19 2018
Tonight..E winds 5 kt. Seas 2 ft.
Thu..E winds 5 to 10 kt, increasing to 10 to 15 kt in the afternoon. Seas 2 ft.
Thu night..E winds 10 to 15 kt. Seas 2 ft.
Fri..E winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.
Fri night..E winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft.
Sat..E winds 5 to 10 kt. Seas 2 ft.
Sat night..E winds 5 to 10 kt. Seas 2 ft. A slight chance of showers and tstms after midnight.
Sun..E winds 5 to 10 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Sun night..SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Mon..SE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms.
Mon night..SE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 1038 Pm Edt Wed Sep 19 2018
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will then prevail into the weekend. A coastal trough of low pressure could impact the area early next week, while high pressure remains over the atlantic into the middle of next week.


7 Day Forecast for Marine Location Near Riceboro, GA
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location: 31.54, -81.26     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 200252
afdchs
area forecast discussion
national weather service charleston sc
1052 pm edt Wed sep 19 2018

Synopsis
High pressure will then prevail into the weekend. A coastal
trough of low pressure could impact the area early next week,
while high pressure remains over the atlantic into the middle
of next week.

Near term through Thursday
Tonight: a large mid-lvl ridge of high pressure will expand from the
west overnight while sfc high pressure builds into the region
from the north. The combination of high pressure and clear skies
will favor radiational cooling and maintain light calm winds
through the remainder of the night. Given the setup, shallow patchy
fog is not out of the question within a few hours of daybreak,
particularly over inland areas of berkeley, dorchester, and colleton
counties where low temps dip into the upper 60s. At this time,
confidence remains too low to mention any fog in the forecast.

Most areas will see temps dip into the upper 60s well inland to
mid upper 70s along the immediate coast.

Short term Thursday night through Saturday
A deep layer ridge will be centered just north of the region on
Thursday, then shift eastward into the atlantic by later Friday and
Saturday. Overall, precip. Chances are expected to be low. The only
pops mentioned during the period are on Friday over the southern
ga region, where a band of relatively higher moisture from a weak
backdoor front meets some atlantic moisture from the east. Low level
winds will be easterly through the period, generally 5-10 mph over
the land, and 10-15 mph at the coast. The easterly flow
will also keep temperatures cooler at that coast, but still expect
generally afternoon highs in the upper 80s to around 90, which is 4
to 6 degrees above normal. However, humidity values will be lower
than they have been for the past several weeks, with inland dewpoint
temperatures mixing down into the mid to upper 60s each afternoon.

Lower dewpoints will allow nighttime lows to reach the upper 60s
inland, but still lower 70s closer to the coast. Although these
low temperatures are expected to be cooler than they have been for
weeks, they will still be above seasonal normal levels.

Long term Saturday night through Wednesday
The large expansive ridge of high pressure over the southeast united
states will become more centered over the western atlantic by early
next week while a front approaches from the north, but likely stalls
well north northwest of the region. Most shower thunderstorm
activity should remain offshore late weekend into early next week.

However, some models continue to favor showers and or thunderstorms
over coastal georgia where mid-lvl energy provides sufficient
forcing and an onshore wind advects moisture over land. There could
be some enhancement to precip coverage early in the week as a
coastal trough shifts onshore and pwats approach 2.0 inches over the
area. Thereafter, a persistent onshore flow along the southwest edge
of the atlantic high could produce chances of showers thunderstorms
into mid week with precip coverage peaking during maximum sfc
heating each day. High temps will generally range in the mid upper
80s across southeast south carolina this weekend and early next
week. Some areas could touch 90 degrees across southeast georgia.

Overnight lows should range in the upper 60s to around 70 degrees
inland to mid upper 70s along the coast.

Aviation 03z Thursday through Monday
Some model guidance indicating the potential for patchy
shallow ground fog. Given the ridge building in, clear skies and
light winds, it seems reasonable. Have introduced bcfg for now,
with vsbys still remainingVFR. Feel conditions are slightly
more favorable for chs to get shallow fog vs sav, but given
uncertainty, put it in sav TAF too.

Extended aviation outlook:VFR conditions are expected to prevail
at both kchs and ksav terminals through Sunday. Deep layer
moisture may begin to return by Monday, which could increase the
chances for showers thunderstorms and the threat for brief
flight restrictions.

Marine
Tonight: high pressure will continue to build south into the
coastal waters. Variable winds 5-10 kt or less will result in seas
of 1-2 feet in nearshore waters and 2-3 ft in offshore georgia
waters.

Thursday through Monday: no highlights are expected at this time
through the period. Deep high pressure will remain centered
generally north of the waters through the period, with easterly
winds of 15 knots or less and seas of 2 to 4 feet. A weak
backdoor front is indicated by the models to move in from the
north Thursday night and early Friday. This feature may increase
the pressure gradient enough to push winds up to 15 to 20 knots
through first part of Friday, before coming back down again. No
significant chances for showers thunderstorms until very late
in the weekend and early next week, when better deep layer
moisture moves into the area.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term... Dpb
short term... Rfm
long term... Dpb
aviation... Jmc rfm
marine... Jmc rfm


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 9 mi78 min SE 1.9 77°F 1015 hPa (+1.0)75°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 23 mi28 min SE 3.9 G 5.8 84°F 85°F2 ft1015.8 hPa (+1.6)74°F
FPKG1 - 8670870 - Fort Pulaski, GA 39 mi36 min SSE 1 G 1 81°F 83°F1016.3 hPa

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Brunswick / Glynco, GA22 mi23 minN 010.00 miFair73°F69°F89%1016.3 hPa

Wind History from BQK (wind in knots)
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Last 24hrCalmSW5SW4W4CalmCalmCalmCalmCalmSW4W4CalmCalmN4CalmN7E6E6E9E5SE4CalmCalmCalm
1 day agoS4S6SW3CalmCalmSW3SW3CalmSW3W3SW6SW4W5W5SW4SW9SW6SW4S7N6E4S5CalmCalm
2 days agoSE3SE8S5SW3SW5SW5SW5S6SW3S3SW5S6S4S5SE10S10SE10
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Tide / Current Tables for Dog Hammock, Sapelo River, Georgia
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Tide / Current Tables for Harris Neck, Barbour Island River, 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 Charleston, SC (23,6,7,8)
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Ground Weather Radar Station Charleston, SC
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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.