Thursday, January17, 2019 L-36.com


Marine Weather and Tides
Midway, 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 7:25AMSunset 5:47PM Thursday January 17, 2019 12:09 PM EST (17:09 UTC) Moonrise 2:29PMMoonset 3:34AM Illumination 88% Phase: Waxing Gibbous; Moon at 11 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- 1021 Am Est Thu Jan 17 2019
Rest of today..N winds 5 kt, becoming S this afternoon. Seas 1 foot.
Tonight..S winds 5 to 10 kt, becoming sw after midnight. Seas 1 foot.
Fri..W winds 5 to 10 kt, becoming sw in the afternoon. Seas 1 foot.
Fri night..S winds 5 kt. Seas 1 foot.
Sat..S winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt in the afternoon. Seas 2 to 3 ft.
Sat night..S winds 15 to 20 kt with gusts to 25 kt. Seas 4 to 5 ft. Showers.
Sun..W winds 20 to 25 kt. Seas 3 to 4 ft. A chance of showers.
Sun night..NW winds 20 to 25 kt. Seas 3 to 4 ft.
Mon..N winds 10 to 15 kt. Seas 3 to 4 ft.
Mon night..E winds 10 to 15 kt. Seas 3 ft.
AMZ300 1021 Am Est Thu Jan 17 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Dry high pressure will prevail today with a weak upper disturbance moving through tonight. A stronger storm system will then impact the area Saturday night and Sunday. Much colder temperatures will return early next week followed by increasing temperatures and rain chances into the middle of next week.


7 Day Forecast for Marine Location Near Midway, GA
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location: 31.73, -81.21     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 171528
afdchs
area forecast discussion
national weather service charleston sc
1028 am est Thu jan 17 2019

Synopsis
Dry high pressure will prevail today with a weak upper
disturbance moving through tonight. A stronger storm system
will then impact the area Saturday night and Sunday. Much
colder temperatures will return early next week followed by
increasing temperatures and rain chances into the middle of
next week.

Near term through tonight
As of 10:30 am: the only minor changes with this update were to
take the current hourly temperatures and dew points and blend
them with the expected afternoon values.

Rest of today: high pressure nudging towards the charleston
tri-county this morning may allow surface winds to briefly turn
to the north. Later today, low pressure is forecasted to track
over the ohio river valley, allowing winds to shift to the south-
southwest. The combination of return flow and at least partly
sunny conditions should allow temperatures to peak in the low to
mid 60s.

Tonight: the center of low pressure will continue to track to the ne
across the mid-atlantic states. The associated cold front is
forecast to sweep across the southern appalachians between 9z to
12z. Within the mid-levels, a weak short wave will ripple across the
forecast area this evening, well ahead of the sfc cold front. High
resolution cam guidance indicates only a few showers will be
possible tonight, supporting only schc pops across the sc
lowcountry. Given thick clouds and continued SW winds, low
temperatures should verify in the mid 40s.

Short term Friday through Sunday
Generally high confidence this period. Surface high pressure will
maintain mainly dry conditions Friday although a few showers cannot
be completely ruled out toward the csra where moisture and
instability will be increasing a bit. A warm front is expected to
develop over or near the area Friday night ahead of low pressure
near texarkana and this could lead to a few showers into Saturday,
mainly well inland, but it looks like the bulk of the rain will hold
off until Saturday night with clearing on Sunday. Still appears
instability will remain low as thus the risk for thunderstorms as
well. Rain amounts still look to average around a half inch with
some locally higher amounts. Temperatures will be well above normal
through Saturday (when it could get near record highs especially at
ksav), then return back to near normal Sunday (although highs are
more likely to occur earlier in the day due to the cold advection
kicking in during the day behind the front). It will also become
breezy Saturday afternoon and continue through Sunday with a lake
wind advisory possible for lake moultrie starting Sunday.

Long term Sunday night through Wednesday
High forecast confidence through Monday night before confidence
lowers into mid week. High pressure will be building from the
northwest behind an upper trough pushing offshore to start the
period. The high should be centered near nc va by Tuesday with a
coastal trough developing off the southeast u.S. Coast. Thereafter
the forecast becomes more uncertain as some model guidance is more
progressive with the high shifting offshore than others, but for now
we trended toward the slower ECMWF solution which matches better
with the GFS ensemble mean. So we are indicating small rain chances
returning Tuesday night and increasing Wednesday before diminishing
behind a cold front into Thursday.

Most, if not all, locales should be below freezing Monday morning
with inland areas in the mid to upper 20s and wind chills near 20
degrees. It's not out of the question that coastal areas reach wind
chill advisory levels of 15 degrees, especially near charleston
where the colder temperatures are expected. Highs Monday should only
range from around 40 near the santee river to 50 near the altamaha
river. Temperatures Monday night look a bit milder especially near
the coast due to more onshore winds but interior areas could reach
similar temperatures as Monday morning. Thereafter temperatures will
moderate into mid week to near or above normal levels before
possibly returning back below normal again Thursday behind the cold
front.

Aviation 15z Thursday through Monday
MainlyVFR.

Extended aviation outlook: restrictions possible as early as Friday
but more likely Saturday night into early Sunday, probably ifr or
worse at times due to low clouds and moderate rain. Also,
breezy gusty conditions are expected later Saturday into
early Monday.

Marine
Today and tonight: broad high pressure will remain centered over fl
as a cold front crosses the southern appalachians late tonight.

Winds are forecast to range between 5 to 10 kts south during the
daylight hours. Winds should shift from the west and increase to 10-
15 kts. Seas are forecast to remain around 1 ft across the near
shore waters and 2 ft beyond 20 nm. Tonight, seas will generally
remain unchanged, possibly occasional 3 ft waves across the outer ga
waters.

Friday through Tuesday: no concerns through Saturday (although there
is a low risk of sea fog developing Saturday Saturday night over the
nearshore waters), but conditions will be deteriorating
significantly Saturday night and Sunday as a strong cold front
affects the area with some heavy showers and possible thunderstorms
(mainly near the gulf stream). Wind could even gust near gale force
across the ga waters beyond 20 nm Saturday night into early Sunday
night. Otherwise, small craft advisories are expected for the entire
area. Should see improving conditions Monday as winds turn offshore
and diminish with the weakening cold air advection.

Tides coastal flooding
Tides coastal flooding... Astronomical tide levels will be high early
next week and strong north northeast winds will help contribute to
even higher levels which could lead to minor saltwater flooding
around high tide, especially starting Monday. Thus, coastal flood
advisories will be possible.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term...

short term... Rjb
long term... Rjb
aviation...

marine...

tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 22 mi69 min WSW 2.9 55°F 1026 hPa (+1.0)45°F
FPKG1 - 8670870 - Fort Pulaski, GA 27 mi39 min E 2.9 G 4.1 1025.6 hPa
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 29 mi79 min Calm G 1.9 57°F 58°F2 ft1026 hPa (+1.2)45°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, GA21 mi13 minSSW 310.00 miFair62°F37°F40%1024.7 hPa
Wright Army Airfield (Fort Stewart)/Midcoast Regional Airport, GA22 mi73 minN 010.00 miPartly Cloudy56°F39°F54%1025.7 hPa

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Last 24hrW6W4W7W6W6SW3W5SW3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmW3CalmCalmSW3
1 day agoNW5NW4NW6NW3NW4NW4CalmNW3CalmCalmCalmCalmW5W5W4W4W4W4W5W4NW3----SW7
2 days agoNW6N3W7W5NW7NW5N6N5NW6NW3CalmE4CalmCalmCalmW3N3N3NE3N4CalmN3CalmNW4

Tide / Current Tables for North Newport River (Daymark 119), 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 Florida Passage, Bear River, Georgia
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Florida Passage
Click for Map
Thu -- 03:33 AM EST     Moonset
Thu -- 04:56 AM EST     7.67 feet High Tide
Thu -- 07:24 AM EST     Sunrise
Thu -- 11:36 AM EST     0.40 feet Low Tide
Thu -- 02:29 PM EST     Moonrise
Thu -- 05:25 PM EST     6.69 feet High Tide
Thu -- 05:44 PM EST     Sunset
Thu -- 11:51 PM EST     -0.38 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.72.34.267.37.77.26.14.631.50.60.51.32.94.55.96.66.65.84.42.81.20

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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Wind Forecast for Charleston, SC (12,3,4,5)
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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.