Friday, October18, 2019 L-36.com


Marine Weather and Tides
Garden City, GA

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 7:28AMSunset 6:50PM Friday October 18, 2019 7:25 PM EDT (23:25 UTC) Moonrise 9:18PMMoonset 10:49AM Illumination 73% Phase: Waning Gibbous; Moon at 20 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- 710 Pm Edt Fri Oct 18 2019
.small craft advisory in effect from 2 am edt Saturday through Saturday morning...
.gale watch in effect from Saturday morning through late Saturday night...
Tonight..E winds 10 to 15 kt, increasing to 15 to 20 kt, then becoming se 20 to 25 kt after midnight. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. Showers likely after midnight.
Sat..SE winds 25 to 30 kt with gusts to 40 kt. Seas 4 to 6 ft, building to 7 to 9 ft in the afternoon. Showers with a slight chance of tstms. Locally heavy rainfall possible.
Sat night..S winds 25 to 30 kt with gusts to 35 kt, becoming sw 20 to 25 kt with gusts to 30 kt after midnight. Seas 7 to 9 ft, subsiding to 5 to 7 ft after midnight. Showers with a slight chance of tstms in the evening, then showers likely after midnight.
Sun..W winds 15 to 20 kt with gusts to 25 kt, becoming nw 10 kt in the afternoon. Seas 3 to 4 ft. A chance of showers in the morning.
Sun night..N winds 5 to 10 kt, becoming ne after midnight. Seas 2 ft.
Mon..E winds 5 to 10 kt. Seas 2 ft.
Mon night..S winds 10 to 15 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight. A chance of showers with a slight chance of tstms.
Tue..SW winds 15 kt. Seas 3 to 4 ft. A chance of showers.
Tue night..NW winds 15 kt. Seas 2 to 3 ft. A chance of showers.
Wed..N winds 10 to 15 kt. Seas 2 ft.
Wed night..NE winds 10 kt. Seas 2 ft. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 710 Pm Edt Fri Oct 18 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A storm system in the gulf of mexico will move northeast over or near the area Saturday bringing unsettled weather through Saturday night. A cold front will then move through Tuesday, followed by dry high pressure.


7 Day Forecast for Marine Location Near Garden City, GA
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location: 32.07, -81.11     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 182021
afdchs
area forecast discussion
national weather service charleston sc
421 pm edt Fri oct 18 2019

Synopsis
A storm system originating from the gulf of mexico will bring
unsettled weather late tonight through Saturday night. A cold
front will move through Tuesday, followed by dry high pressure.

Near term until 6 am Saturday morning
High pressure will lose influence tonight as a low pressure
system currently in the gulf of mexico lifts northeast into the
florida panhandle and towards the area. This evening will remain
dry, however deep moisture will overspread the area from the
south overnight ahead of the low. As a result, rain chances
will ramp up, and widespread showers are expected to be
impacting the georgia counties by daybreak. There will be some
activity north of the savannah river, but the bulk of the
precipitation should hold off until after this time. Average
rainfall totals overnight will generally be a quarter of an inch
or less, with some isolated higher amounts near the altamaha.

Otherwise, cloud cover will thicken through the night with
temperatures near to above normal. Lows are forecast to range
from low mid 50s across northern and interior zones to low mid
60s south.

Short term 6 am Saturday morning through Monday
Tropical storm nestor is forecast to make a quick transition to a
post extra tropical entity after making landfall along the florida
panhandle prior to 12z Saturday. While just about all of the
convective and non-convective rains have been in the eastern semi-
circle of the system prior to landfall, we expect transition to a
more mature non-tropical low later Saturday with a developing
dry slot wrapping into the system. Categorical pops are in
order for all areas as rains spread north through the morning
hours. Winds will also be increasing as the low moves northeast
through southern ga in the afternoon. We may need a wind
advisory for coastal areas during the afternoon hours as the
gradient tightens. Low level instability is in question as
heavier rains may tend to keep surface temps in the 60s to the
west of i-95 through much of the day. Latest guidance suggests
the tornado potential could be confined to immediate coastal
areas of SE ga during the afternoon and shift to the sc coast in
the evening. Mucapes over 500 j kg are generally progged
offshore by both the GFS ecmwf.

The surface low is forecast to move quickly northeast of the
forecast area after midnight to a position along the nc coast by 12z
Sunday. Rains will end from SW to NE Saturday night with the flow
veering to offshore around daybreak on Sunday.

High pressure will return during Sunday into Monday with dry weather
with highs in the mid upper 70s on Sunday and upper 70s to lower 80s
on Tuesday.

Long term Monday night through Friday
A cold front will sweep through Tuesday accompanied by
scattered to numerous showers. Dry high pressure will then build
in from the west through Thursday night. A strong cold front
could bring another chance for rain late Friday.

Aviation 20z Friday through Wednesday
Vfr will prevail the remainder of the afternoon into tonight.

Conditions are expected to deteriorate late tonight into
Saturday as showers associated with a low pressure system move
into the area. MVFR or lower ceilings are expected to develop,
beginning at ksav roughly around 08z, then to kchs by 14z. In
addition, gusty east winds are expected on Saturday.

Extended aviation outlook: flight restrictions are likely through
midday Sunday as wrap-around low clouds will begin the day before
clearing out in the afternoon. Brief flight restrictions possible
again on Tuesday with a cold front and scattered showers.

Marine
Tonight: a low pressure system currently over the gulf of mexico
will lift northeast into the florida panhandle tonight. As this
occurs, the pressure gradient will tighten and conditions will
deteriorate from south to north. Late tonight, easterly winds
are expected to be gusting in the 25-30 knot range across the
georgia waters, and a small craft advisory is in place to cover
this prior to the start of the gale watch. Across south carolina
waters, gusts should stay shy of advisory criteria through
sunrise.

Hazardous conditions with develop with the approach of post extra
tropical storm nestor on Saturday. Strong low pressure will quickly
shift northeast through SE ga and southern sc into Saturday evening.

The low will move northeast of the waters by early Sunday.

Gale watches will likely be upgraded to gale warnings tonight as
strong gusty winds expected to impact the waters with gusts up to
35-40 kt. Seas will build to 6 to 9 ft near shore and up to
11 ft offshore by late Saturday. We think a high surf advisory will
likely be needed as seas build during the day Saturday.

Conditions will improve on Sunday as low pressure continues to move
away and winds shift more offshore. Seas will also gradually subside.

A cold front will approach the waters late Monday night and move off
the coast late Tuesday. Cooler and drier air in the wake of the
front will result in another decent surge and possible small craft
advisories.

Hydrology
Deep tropical moisture will spread into the region from florida and
the eastern gulf of mexico later tonight and Saturday. The
increasing forward speed of the low pressure system will tend to
keep storm total rainfall amounts below 4 inches across the region,
although isolated amounts could be higher. On this package we raised
total storm QPF amounts to 2.5-3.5 inches. We expect a good
possibility for localized minor flooding with this event, and flood
advisories will likely be needed Saturday afternoon and evening.

Tides coastal flooding
Increasing onshore flow will result in building tidal departures and
the risk for minor moderate coastal flooding around the midday
Saturday high tide at both downtown charleston and fort
pulaski. Flooding could be worsened by ongoing rainfall around
the time of high tide.

Chs watches warnings advisories
Ga... High rip current risk from Saturday morning through Saturday
evening for gaz117-119-139-141.

Sc... High rip current risk from Saturday morning through Saturday
evening for scz048>051.

Marine... Gale watch from Saturday morning through late Saturday night
for amz330-350-352-354-374.

Small craft advisory from 5 am to 8 am edt Saturday for amz352.

Small craft advisory from 2 am to 8 am edt Saturday for amz354-
374.

Near term... Etm
short term...

long term... Jrl
aviation... Etm
marine... Etm
hydrology...

tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 11 mi62 min ENE 13 G 16 69°F 75°F1015.5 hPa
41033 40 mi78 min E 14 G 18 68°F 75°F1015.4 hPa
SAXG1 - Sapelo Island Reserve, GA 46 mi86 min ENE 2.9 72°F 1014 hPa (+0.0)58°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 48 mi36 min E 12 G 14 74°F 78°F2 ft1014.1 hPa (+0.0)60°F
ACXS1 - ACE Basin Reserve, SC 48 mi101 min ENE 1 68°F 1016 hPa52°F

Wind History for Fort Pulaski, GA
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hunter U. S. Army Airfield, GA3 mi30 minNE 710.00 miFair67°F56°F69%1014.5 hPa
Savannah-Hilton Head International Airport, GA7 mi33 minENE 610.00 miMostly Cloudy66°F57°F73%1015.3 hPa
Hilton Head Island, Hilton Head Airport, SC24 mi36 minNE 810.00 miOvercast66°F55°F68%1015.9 hPa

Link to 5 minute data for KSVN

Wind History from SVN (wind in knots)
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Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNE6NE7NE8N7NE8E9
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1 day agoW5W7NW7NW12NW10NW9NW9NW8NW8W6W5W4NW5N9NW8NW3N3W5NW5W7NW6W5W4Calm
2 days agoCalmCalmE3N3CalmCalmCalmE5S8
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Tide / Current Tables for Savannah (Bull Street), Georgia
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Savannah (Bull Street)
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Fri -- 06:09 AM EDT     0.64 feet Low Tide
Fri -- 07:30 AM EDT     Sunrise
Fri -- 11:44 AM EDT     8.92 feet High Tide
Fri -- 11:48 AM EDT     Moonset
Fri -- 06:42 PM EDT     1.21 feet Low Tide
Fri -- 06:48 PM EDT     Sunset
Fri -- 10:17 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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7.87.164.52.71.30.71.12.85.27.48.68.98.37.35.94.12.51.41.32.13.95.87.2

Tide / Current Tables for Savannah River Entrance, Georgia Current
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Savannah River Entrance
Click for Map
Fri -- 12:35 AM EDT     -0.00 knots Slack
Fri -- 03:22 AM EDT     -1.67 knots Max Ebb
Fri -- 06:35 AM EDT     0.00 knots Slack
Fri -- 07:29 AM EDT     Sunrise
Fri -- 09:19 AM EDT     2.14 knots Max Flood
Fri -- 11:47 AM EDT     Moonset
Fri -- 12:55 PM EDT     -0.00 knots Slack
Fri -- 03:48 PM EDT     -1.92 knots Max Ebb
Fri -- 06:47 PM EDT     Sunset
Fri -- 07:21 PM EDT     0.00 knots Slack
Fri -- 09:47 PM EDT     1.60 knots Max Flood
Fri -- 10:16 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.4-0.3-1.1-1.6-1.6-1.2-0.60.41.52.121.40.7-0.1-0.9-1.7-1.9-1.6-1.2-0.40.61.41.61.2

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 Charleston, SC (19,4,5,8)
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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.