Wednesday, April26, 2017 L-36.com


Marine Weather and Tides
Isle of Hope, 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 6:40AMSunset 8:02PM Wednesday April 26, 2017 1:32 PM EDT (17:32 UTC) Moonrise 6:03AMMoonset 7:24PM Illumination 0% Phase: New Moon; Moon at 1 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- 112 Pm Edt Wed Apr 26 2017
This afternoon..S winds 5 to 10 kt...increasing to 10 to 15 kt late. Seas 2 to 3 ft.
Tonight..S winds 15 kt. Seas 3 to 4 ft.
Thu..S winds 10 to 15 kt. Seas 3 to 4 ft.
Thu night..S winds 15 kt. Seas 3 to 4 ft.
Fri..S winds 10 to 15 kt. Seas 3 to 4 ft.
Fri night..S winds 15 kt. Seas 3 to 4 ft.
Sat..S winds 10 to 15 kt. Seas 3 ft.
Sat night..S winds 15 kt. Seas 3 ft.
Sun..S winds 15 kt. Seas 3 to 4 ft.
Sun night..S winds 15 to 20 kt. Seas 4 to 6 ft.
AMZ300 112 Pm Edt Wed Apr 26 2017
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail across the region today and tonight. A weak disturbance is expected to affect the area Thursday night, followed by high pressure Friday into the weekend. A cold front will affect the area Monday and Monday night before high pressure rebuilds.

7 Day Forecast for Marine Location Near Isle of Hope, GA
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location: 31.98, -81.05     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 261713
afdchs
area forecast discussion
national weather service charleston sc
113 pm edt Wed apr 26 2017

Synopsis
High pressure will prevail across the region today and tonight.

A weak disturbance is expected to affect the area Thursday
night, followed by high pressure Friday into the weekend. A cold
front will affect the area Monday and Monday night before high
pressure rebuilds.

Near term /through tonight/
1 pm: no significant changes with the forecast. Satellite shows
the smoke plume from the fl wildfire continues moving
northeast. Surface observations indicate the smoke is elevated,
so we aren't expecting any surface obscurations.

Otherwise, a mid-level short wave ridge will ripple over the
forecast area this afternoon. At the sfc, the CWA will remain
between organizing low pressure over arkansas and high pressure
over the western atlantic. The pressure pattern will provide the
region with strengthening sse flow through this afternoon,
peaking between 10-15 mph during the heat of the afternoon. The
combination of sse flow and high temps well into the mid to
upper 80s inland should yield a sea breeze this afternoon.

Forecast soundings indicate that a strong inversion will remain
centered around h7, with CIN remaining through this afternoon.

Based on the forecast moisture and temperature profile, it
appears that CU will remain very limited this afternoon.

Tonight, sfc low pressure will track across the heartland, sweeping
the associated cold front across middle tn by sunrise Thursday.

Return flow across the CWA will remain steady through the overnight
hours. Overall, sky conditions are expected to remain clear to
mostly clear. However, higher clouds should begin to arrive from the
west during the pre dawn hours. Using a blend of temperature
guidance, low temperatures should range in the low to mid 60s, with
upper 60s across the sea islands.

Short term /Thursday through Saturday/
Strengthening high pressure over the central atlantic and a
digging shortwave trough over the ohio valley will allow
increasing moisture to move into the area. Weak upper forcing
associated with the shortwave and a decaying cold front may
kick off a few showers or thunderstorms, mainly Thursday afternoon
and evening across inland areas. Otherwise, a building upper
ridge with strong warm advection will favor a warming trend with
highs climbing into the 90s across inland areas Friday and
Saturday.

Long term /Saturday night through Wednesday/
The pattern shifts during the long term as a large upper trough
shifts east and a cold front sweeps through Monday and Monday
night. A few showers possible inland on Sunday as some upper
vorticity energy moves through, but the best rain chances will
be Monday and Monday night.

Aviation /17z Wednesday through Sunday/
Vfr through 18z Thursday.

Extended aviation outlook: no significant concerns.

Marine
Today, at the sfc, the marine zones will remain between organizing
low pressure over arkansas and high pressure over the western
atlantic. The pressure pattern will provide the region with
strengthening sse flow through this afternoon, peaking around 15 kts
during the heat of the afternoon. Return flow should remain steady
over the waters tonight, turning from the ssw. Wave heights within
20 nm are forecast to remain between 2-3 feet, increasing to 3-4
feet beyond 20 nm tonight.

A summertime pattern will prevail Thursday into Sunday as
atlantic high pressure maintains onshore flow and a sea breeze
develops each afternoon. Strengthening southeast flow ahead of a
cold front Monday will likely result in small craft advisory
seas over most of the waters starting Sunday night and
persisting into Monday night.

Rip currents... The combination of swell impacting the beaches, an
afternoon sea breeze, and the upcoming perigean spring tide will
generate a moderate risk of rip currents today.

Tides/coastal flooding
The upcoming perigean spring tide and recent elevated
departures will allow for coastal flooding with this evening's
high tides. A coastal flood advisory is in effect for all of the
coastal counties. Elevated tides are expected to continue through
Saturday, so more advisories will likely be needed with each
evening high tide.

Chs watches/warnings/advisories
Ga... Coastal flood advisory from 7 pm to 10 pm edt this evening for
gaz117-119-139-141.

Sc... Coastal flood advisory from 7 pm to 10 pm edt this evening for
scz048>051.

Marine... None.

Near term...

short term...

long term... Jrl
aviation...

marine...

tides/coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FPKG1 - 8670870 - Fort Pulaski, GA 9 mi44 min SSW 6 G 8.9 76°F 74°F1012 hPa
41033 40 mi84 min SW 12 G 14 70°F 72°F1012.2 hPa
SAXG1 - Sapelo Island Reserve, GA 41 mi92 min Calm 77°F 1012 hPa (+1.0)61°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 41 mi42 min Calm G 1.9 72°F 73°F2 ft1012.1 hPa (+0.8)62°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, GA6 mi34 minS 410.00 miFair82°F63°F53%1011.1 hPa
Savannah, Savannah International Airport, GA14 mi39 minVar 510.00 miPartly Cloudy84°F57°F40%1011.1 hPa

Wind History from SVN (wind in knots)
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Last 24hrW9W13
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W9W7W9W5W3S3CalmCalmCalmCalmCalmSW8SW5SW4W5W3W6W6W3CalmS5S4
1 day agoSW13
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2 days agoSE11SE12
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S6S8S8S7SE5SW6W5SW3SW3W8W10W11SW11W14

Tide / Current Tables for Isle of Hope, Skidaway River, Georgia
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Isle of Hope
Click for Map
Wed -- 03:12 AM EDT     -0.98 feet Low Tide
Wed -- 06:42 AM EDT     Sunrise
Wed -- 07:03 AM EDT     Moonrise
Wed -- 08:18 AM EDT     New Moon
Wed -- 09:31 AM EDT     8.92 feet High Tide
Wed -- 03:28 PM EDT     -1.28 feet Low Tide
Wed -- 08:01 PM EDT     Sunset
Wed -- 08:23 PM EDT     Moonset
Wed -- 09:49 PM EDT     10.17 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
5.12.50.2-0.9-0.51.13.45.87.78.88.87.65.530.5-1.1-1.10.435.88.29.810.19.2

Tide / Current Tables for Savannah River Entrance, Georgia Current
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Savannah River Entrance
Click for Map
Wed -- 12:25 AM EDT     -2.62 knots Max Ebb
Wed -- 03:41 AM EDT     0.00 knots Slack
Wed -- 06:16 AM EDT     2.48 knots Max Flood
Wed -- 06:42 AM EDT     Sunrise
Wed -- 07:02 AM EDT     Moonrise
Wed -- 08:18 AM EDT     New Moon
Wed -- 09:54 AM EDT     -0.01 knots Slack
Wed -- 12:55 PM EDT     -2.46 knots Max Ebb
Wed -- 03:54 PM EDT     0.00 knots Slack
Wed -- 06:36 PM EDT     2.94 knots Max Flood
Wed -- 08:00 PM EDT     Sunset
Wed -- 08:23 PM EDT     Moonset
Wed -- 10:13 PM EDT     -0.01 knots Slack
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-2.6-2.6-2.1-10.51.82.42.31.71-0.1-1.4-2.2-2.5-2.2-1.40.21.82.82.92.31.40.3-1.1

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 (13,3,4,5)
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Ground Weather Radar Station Charleston, SC
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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.