Friday, June22, 2018 L-36.com


Marine Weather and Tides
Midway, GA

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 6:20AMSunset 8:36PM Friday June 22, 2018 10:35 PM EDT (02:35 UTC) Moonrise 2:38PMMoonset 1:46AM Illumination 72% 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- 758 Pm Edt Fri Jun 22 2018
Tonight..SW winds 10 to 15 kt. Seas 2 ft.
Sat..SW winds 10 to 15 kt. Seas 2 to 3 ft.
Sat night..S winds 15 to 20 kt, becoming sw 10 to 15 kt after midnight. Seas 3 to 4 ft.
Sun..W winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 ft.
Sun night..S winds 10 to 15 kt with gusts to 20 kt. Seas 2 to 3 ft.
Mon..SW winds 10 to 15 kt. Seas 2 ft. A chance of showers and tstms.
Mon night..S winds 10 to 15 kt, becoming sw 5 to 10 kt after midnight. Seas 3 ft, subsiding to 2 ft after midnight. A chance of showers and tstms.
Tue..NE winds 10 to 15 kt. Seas 2 ft. A chance of showers and tstms.
Tue night..E winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Wed..E winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Wed night..E winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 758 Pm Edt Fri Jun 22 2018
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will extend over the region through Monday. A cold front will drop south into the area Monday night and Tuesday which will bring cooler conditions for the middle to end 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 230002
afdchs
area forecast discussion
national weather service charleston sc
802 pm edt Fri jun 22 2018

Synopsis
High pressure will extend over the region through Monday. A
cold front will drop south into the area Monday night and
Tuesday which will bring cooler conditions for the middle to
end of next week.

Near term until 6 am Saturday morning
Early this evening: no changes needed to the current forecast.

There is no lingering convection and only scattered high level
cloudiness is spreading across the area. It will certainly be
another warm and muggy night lows only in the mid to upper 70s
away from the immediate coast.

Short term 6 am Saturday morning through Monday
The region will remain pinned between a broad subtropical
anticyclone centered well offshore and a potent upper low moving
across the ohio valley Saturday. The subtropical high offshore
will build retrograde west Sunday into Monday as the upper low
kicks out leading to an intensification of the heat and humidity
across the entire southeast states. The combination of highs
well into the 90s and dewpoints in the mid-upper 70s will
support heat indices above the pre-july 1 heat advisory criteria
of 105 through Monday for many areas. For Sunday, h8
temperatures ~21c and a continued westerly flow will push highs
to near the 100 degree mark inland with heat indices likely
peaking 107-112 for many areas, highest closer to the coast.

There are data that dewpoints could pool into the upper 70s near
80 across parts of coastal colleton, charleston into tidal
berkeley counties at peak heating with the sea breeze which
could push heat indices uncomfortably close to 115. If these
trends continue an excessive heat watch may be needed. Expect
little relief from the heat and humidly at night with muggy lows
only dropping into the mid-upper 70s inland to around 80 at the
beaches and downtown charleston.

Rain chances will remain quite low through the period. Ridging
and weak subsidence aloft will limit any potential thunderstorm
activity to the isolated category, mainly west of the afternoon
sea breeze. Most activity will diminish by early evening as
heating ceases and low-level convergence shifts back over the
atlantic along the west wall of the gulf stream. Generally
maintained 20% pops ahead of the sea breeze each afternoon,
although it could very well end up rain- free for the entire
forecast period.

Long term Monday night through Friday
The latest medium range model guidance suggests a backdoor cold
front will move through Monday night into Tuesday as high
pressure moves into the mid-atlantic. Slightly drier and cooler
conditions should then prevail through mid week. The best rain
chances amounts look to be Monday night into Tuesday, but could
linger into Wednesday especially in ga which will be closer to
the front.

Aviation 00z Saturday through Wednesday
Vfr conditions will prevail through 00z Sunday. Chances for
thunderstorms Saturday afternoon are too low to include in the
tafs at this point.

Extended aviation outlook: risk for TSTM impacts Monday night
into Tuesday.

Marine
Tonight: south to southwest winds averaging 15 kt are expected
this evening. The strongest winds with gusts up to 20 kt are
expected along the sc coastline during this same time period. By
late evening the winds will ease a few kt and maintain a 10-15
kt intensity until daybreak. Slight veering towards the west is
possible around daybreak as the land breeze develops. Seas will
range from 2-3 ft.

Saturday through Wednesday: high pressure will persist to the
east through Monday while a pronounced surface trough lingers
inland.This will keep south to southwest winds in place. A
robust afternoon sea breeze is expected each day, with winds
near the charleston county coast occasionally gusting to 15-20
kt or so. Winds should shift out of the northeast east behind a
cold front Monday night into Tuesday. Small craft advisory
conditions are not anticipated through the period.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term... Bsh
short term... St
long term... Rjb
aviation... Bsh st
marine... Ms st


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SAXG1 - Sapelo Island Reserve, GA 22 mi95 min SSW 7 83°F 1012 hPa (+1.0)75°F
FPKG1 - 8670870 - Fort Pulaski, GA 27 mi53 min WSW 6 G 8.9 83°F 83°F1012.3 hPa
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA 29 mi45 min SW 12 G 14 84°F 84°F2 ft1012.4 hPa (+2.0)

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 mi39 minSSW 910.00 miFair82°F73°F75%1011.8 hPa
Wright Army Airfield (Fort Stewart)/Midcoast Regional Airport, GA22 mi39 minS 510.00 miFair82°F72°F72%1012.1 hPa

Wind History from SVN (wind in knots)
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Last 24hrSW6SW3SW5SW6W4W3SW5W4W6W7W7W7W6SW6SW8W9
G15
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1 day agoW3SW3CalmSW3CalmCalmSW3CalmCalmW4W5W5W7W7NW9NW5NW6W10
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2 days agoS5SW5S5CalmCalmCalmCalmCalmW4CalmCalmCalmSW3CalmS6SE6SE9W13
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Tide / Current Tables for North Newport River (Daymark 119), Georgia
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North Newport River (Daymark 119)
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Fri -- 02:45 AM EDT     Moonset
Fri -- 04:40 AM EDT     7.26 feet High Tide
Fri -- 06:20 AM EDT     Sunrise
Fri -- 11:07 AM EDT     -0.06 feet Low Tide
Fri -- 03:38 PM EDT     Moonrise
Fri -- 05:26 PM EDT     7.71 feet High Tide
Fri -- 08:33 PM EDT     Sunset
Fri -- 11:48 PM EDT     0.40 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.12.64.467.17.26.55.23.61.90.6-0.10.31.63.45.36.87.67.66.85.43.720.7

Tide / Current Tables for Florida Passage, Bear River, Georgia
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Florida Passage
Click for Map
Fri -- 02:45 AM EDT     Moonset
Fri -- 04:51 AM EDT     7.53 feet High Tide
Fri -- 06:19 AM EDT     Sunrise
Fri -- 11:25 AM EDT     -0.06 feet Low Tide
Fri -- 03:38 PM EDT     Moonrise
Fri -- 05:37 PM EDT     8.00 feet High Tide
Fri -- 08:33 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.82.24.15.97.27.575.84.22.40.900.11.235.16.87.87.97.364.32.51

Weather Map and Satellite Images
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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.
target = "new">Link to Loop

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