Wednesday, March20, 2019 L-36.com


Marine Weather and Tides
Garden City, 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 7:26AMSunset 7:36PM Wednesday March 20, 2019 10:11 PM EDT (02:11 UTC) Moonrise 6:23PMMoonset 6:26AM Illumination 100% Phase: Full Moon; Moon at 15 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
    EDIT      (on/off)   Help
AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm, Including Grays Reef National Marine Sanctuary- 1001 Pm Edt Wed Mar 20 2019
Rest of tonight..NE winds 10 to 15 kt, becoming N 5 to 10 kt, then becoming nw late. Seas 3 to 4 ft.
Thu..NW winds 5 to 10 kt, becoming sw in the afternoon. Seas 3 to 4 ft.
Thu night..W winds 10 to 15 kt, becoming nw 15 to 20 kt after midnight. Seas 3 to 4 ft, building to 4 to 5 ft after midnight.
Fri..NW winds 15 to 20 kt, becoming W 10 kt in the afternoon. Seas 3 to 4 ft.
Fri night..NW winds 10 to 15 kt. Seas 2 to 3 ft.
Sat..N winds 10 to 15 kt, becoming E 5 to 10 kt in the afternoon. Seas 2 to 3 ft.
Sat night..E winds 5 to 10 kt. Seas 2 ft.
Sun..SE winds 5 to 10 kt. Seas 2 ft.
Sun night..SE winds 5 to 10 kt. Seas 2 ft.
Mon..S winds 5 to 10 kt. Seas 2 ft. A slight chance of showers.
Mon night..S winds 10 to 15 kt. Seas 2 ft. A chance of showers.
AMZ300 1001 Pm Edt Wed Mar 20 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A surface trough along the carolina coast will move away from the area tonight. High pressure will then build into the region and persist through the weekend. Low pressure could move through the southeast Tuesday.


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


Area Discussion for - Charleston, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kchs 202328
afdchs
area forecast discussion
national weather service charleston sc
728 pm edt Wed mar 20 2019

Synopsis
A surface trough along the carolina coast will move away from
the area tonight. High pressure will then build into the region
and persist through the weekend. Low pressure could move
through the southeast Tuesday.

Near term through Thursday
Considerable low cloudiness remains stuck underneath a sharp
inversion to the west of a coastal low developing on a trough
that is just northeast of charleston county. This inversion will
stick with us for at least the first part of the night, and we
have increased cloud cover to 90-100% over most of south
carolina as a result. We have also included slight chance pop
and mention of patchy drizzle mainly across the charleston quad-
county. Further south and further removed from the coastal low
we have clear or partly cloudy sky and no mention of precip.

Hourly temps have been adjusted to account for recent trends of
cooler north and warmer south.

Previous discussion...

as of 300 pm Wednesday... Clear skies expected save for the low level
stratocumulus clouds still stuck under strong inversion at 2500 ft.

No particular guidance appears to have a great initialization of
this moisture, but it is expected to retreat gradually northeastward
through the period as low pressure develops offshore and pulls into
se nc. Low temperatures tonight will be seasonably cool.

Short term Thursday night through Saturday
As of 300 pm Wednesday... Lead shortwave crosses the region early
Thursday while main impressive vorticity MAX enters the trough and
streaks by just to our north Thursday evening. While these features
may be capable of introducing a few clouds over northern zones
due to their moderately strong ascent forecast soundings show
far too dry of an atmospheric column for anything more.

Friday and Saturday will feature a return of more seasonable high
temperatures. The trough over the NE us will deepen into a winter-
like cutoff but the associated cool advection remains largely
confined to our north.

Long term Saturday night through Wednesday
High pressure will prevail across the region through the
weekend. Models show a coastal trough forming Monday while a
system approaches from the west. The system could bring rainfall
to the region on Tuesday. However, there remains uncertainty
over the timing, strength, and the track of this system.

Aviation 00z Thursday through Monday
Kchs: considerable moisture will remain trapped in place
through the night, with a sharp inversion to hold until late to
the southwest of low pressure off the upper south carolina and
north carolina coast. This will result in ifr or MVFR ceilings
and occasional drizzle, before winds shift to offshore and dry
things out for Thursday asVFR returns. Gusty w-sw will prevail
through the afternoon as deep mixing commences.

Ksav:VFR through 00z Friday. The only concern will be for gusty
w-sw winds Thursday afternoon due to deep mixing during the
warmest part of the day.

Extended aviation:VFR.

Marine
Near term through tonight ...

we still have small craft advisories in effect for the amz350
and amz374 waters, mainly to account for seas that are still
elevated. But winds will still be moderate, at least this
evening in response to low pressure developing off the coast and
moving into the CAPE fear region. Later this evening and
tonight the gradient eases locally.

Short term Thursday through Saturday ... West to northwest flow
expected for most of the period as high pressure expands north-to-
south across areas just along and west of the mississippi and low
pressure only gradually lifts into the northeast while
deepening.

Extended marine: high pressure building towards the region will
allow winds and seas to trend downward. The small craft advisory
will expire for the ga waters beyond 20 nm on Friday. No advisories
are expected during the weekend.

Fire weather
Thursday and Friday: rh values as low as 25-30 percent and elevated
offshore winds could cause fire concerns, especially if partners
report low fuel moisture.

Tides coastal flooding
Latest tidal departures support a coastal flood advisory for
all coastal zones except tidal berkeley with the 9 pm high tide.

Levels will reach 7.1 to 7.4 ft mllw in charleston and 9.2 to
9.5 ft mllw at ft. Pulaski with the upcoming high tide.

Additional coastal flooding is likely with the high tides Thursday.

Chs watches warnings advisories
Ga... Coastal flood advisory until 11 pm edt this evening for gaz117-
119-139-141.

Sc... Coastal flood advisory until 11 pm edt this evening for
scz048>051.

Marine... Small craft advisory until 6 am edt Thursday for amz350.

Small craft advisory until noon edt Friday for amz374.

Near term...

short term... Ms
long term... Ms
aviation...

marine...

fire weather...

tides coastal flooding...



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 11 mi60 min NNE 8 G 9.9 54°F 60°F1018.9 hPa
41033 40 mi64 min N 14 G 19 52°F 60°F1018.2 hPa
SAXG1 - Sapelo Island Reserve, GA 46 mi72 min Calm 53°F 1019 hPa (+1.0)49°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 48 mi82 min NE 7.8 G 12 58°F 62°F4 ft1018.2 hPa (+0.4)47°F
ACXS1 - ACE Basin Reserve, SC 48 mi87 min N 2.9 50°F 1019 hPa46°F

Wind History for Fort Pulaski, GA
(wind in knots)    EDIT      (on/off)   Help
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
Last
24hr
NE11
G15
NE10
NE12
G15
NE11
NE8
N8
G11
N9
N10
G14
N7
N8
N14
G17
N11
G14
N11
G14
NE8
G11
NE7
N4
G7
NE10
NE9
G13
NW8
E10
SE6
G9
NE10
G13
NE11
G14
NE8
1 day
ago
W2
NW4
NW6
N10
G13
NE15
NE16
G22
NE18
G23
NE16
G21
NE15
G20
NE15
G21
NE16
G24
NE15
G20
NE14
G18
NE16
G21
NE15
G20
NE13
G17
E14
G17
NE13
G17
E16
G20
E16
E13
G17
NE11
G14
NE12
G17
NE12
G15
2 days
ago
N3
NE4
N3
N3
N3
N4
N3
N4
N3
N4
NW6
N6
N5
N7
G11
N7
W4
E9
S3
G6
SE7
G11
SE6
G9
S4
S4
S3
G6
SW3

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hunter U. S. Army Airfield, GA3 mi16 minNE 410.00 miFair53°F44°F72%1018.6 hPa
Savannah-Hilton Head International Airport, GA7 mi19 minE 410.00 miFair52°F45°F77%1019.1 hPa
Hilton Head Island, Hilton Head Airport, SC24 mi17 minNNE 1310.00 miFair52°F44°F77%1019 hPa

Wind History from SVN (wind in knots)
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
Last 24hrCalmN3NE3CalmCalmN3N3CalmCalmN3N4N5N7N3NW5NE9N7
G16
N11
G16
NE10N8N7CalmNE5NE4
1 day agoCalmN5N9NE9NE10NE11NE9NE9NE9NE7NE9NE10
G17
NE11
G17
--E12
G16
NE8
G16
NE7NE12NE7NE8NE5N6N5NE5
2 days agoCalmCalmW3CalmCalmW3CalmCalmW4W3NW3CalmN7NW8N7W6W7SW9NW10SE4SE5S5CalmCalm

Tide / Current Tables for Savannah (Bull Street), Georgia
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Savannah (Bull Street)
Click for Map
Wed -- 03:05 AM EDT     -1.32 feet Low Tide
Wed -- 07:25 AM EDT     Moonset
Wed -- 07:28 AM EDT     Sunrise
Wed -- 08:57 AM EDT     9.02 feet High Tide
Wed -- 03:33 PM EDT     -1.09 feet Low Tide
Wed -- 07:23 PM EDT     Moonrise
Wed -- 07:35 PM EDT     Sunset
Wed -- 09:29 PM EDT     8.91 feet High Tide
Wed -- 09:43 PM EDT     Full Moon
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
3.91.6-0.4-1.3-0.61.64.478.698.57.25.12.90.7-0.8-0.90.63.25.87.88.88.87.9

Tide / Current Tables for Savannah River Entrance, Georgia Current (2) (expired 1999-12-31)
   EDIT      (on/off)   Help   One Week of Data
Savannah River Entrance
Click for Map
Wed -- 12:21 AM EDT     -3.07 knots Max Ebb
Wed -- 03:39 AM EDT     0.01 knots Slack
Wed -- 06:10 AM EDT     2.20 knots Max Flood
Wed -- 07:24 AM EDT     Moonset
Wed -- 07:27 AM EDT     Sunrise
Wed -- 09:23 AM EDT     -0.00 knots Slack
Wed -- 12:49 PM EDT     -3.24 knots Max Ebb
Wed -- 04:11 PM EDT     0.01 knots Slack
Wed -- 06:38 PM EDT     2.15 knots Max Flood
Wed -- 07:22 PM EDT     Moonrise
Wed -- 07:34 PM EDT     Sunset
Wed -- 09:43 PM EDT     Full Moon
Wed -- 09:48 PM EDT     -0.00 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
-3-2.9-2.2-0.90.51.72.221.30.4-0.7-2-3-3.2-2.7-1.7-0.31.122.11.60.8-0.2-1.5

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
GOES Local Image of    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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Charleston, SC (22,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Charleston, SC
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.