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Marine Weather and Tides
Version 3.4 |
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 6:29AM | Sunset 8:32PM | Thursday July 18, 2019 6:12 PM EDT (22:12 UTC) | Moonrise 9:00PM | Moonset 6:57AM | Illumination 97% |  |
AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm, Including Grays Reef National Marine Sanctuary- 559 Pm Edt Thu Jul 18 2019
Tonight..S winds 15 to 20 kt, becoming sw 10 to 15 kt with gusts to 20 kt after midnight. Seas 2 to 3 ft. A slight chance of showers and tstms this evening.
Fri..SW winds 10 to 15 kt. Seas 2 ft. A slight chance of showers and tstms.
Fri night..SW winds 10 to 15 kt. Seas 2 ft. A chance of showers and tstms, mainly in the evening.
Sat..SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 ft. A slight chance of showers and tstms.
Sat night..S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.
Sun..SW winds 10 to 15 kt. Seas 2 ft. A slight chance of showers and tstms.
Sun night..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Mon..SW winds 10 to 15 kt. Seas 2 ft. A chance of showers and tstms.
Mon night..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Tue..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Tue night..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
Tonight..S winds 15 to 20 kt, becoming sw 10 to 15 kt with gusts to 20 kt after midnight. Seas 2 to 3 ft. A slight chance of showers and tstms this evening.
Fri..SW winds 10 to 15 kt. Seas 2 ft. A slight chance of showers and tstms.
Fri night..SW winds 10 to 15 kt. Seas 2 ft. A chance of showers and tstms, mainly in the evening.
Sat..SW winds 5 to 10 kt, becoming S 10 to 15 kt in the afternoon. Seas 2 ft. A slight chance of showers and tstms.
Sat night..S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.
Sun..SW winds 10 to 15 kt. Seas 2 ft. A slight chance of showers and tstms.
Sun night..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Mon..SW winds 10 to 15 kt. Seas 2 ft. A chance of showers and tstms.
Mon night..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Tue..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Tue night..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 559 Pm Edt Thu Jul 18 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Into early next week, the area will remain hot and humid between an inland trough of low pressure and atlantic high pressure. A cold front is expected to stall over or close to the region by the middle of next week, bringing higher rain chances and somewhat cooler temperatures.
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. Into early next week, the area will remain hot and humid between an inland trough of low pressure and atlantic high pressure. A cold front is expected to stall over or close to the region by the middle of next week, bringing higher rain chances and somewhat cooler temperatures.
7 Day Forecast for Marine Location Near Richmond Hill, GA
Hourly EDIT Helplocation: 31.95, -81.34 debug
Area Discussion for - Charleston, SC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kchs 181956 afdchs area forecast discussion national weather service charleston sc 356 pm edt Thu jul 18 2019 Synopsis Into early next week, the area will remain hot and humid between an inland trough of low pressure and atlantic high pressure. A cold front is expected to stall over or close to the region by the middle of next week, bringing higher rain chances and somewhat cooler temperatures. Near term until 6 am Friday morning Until sunset: radar shows thunderstorms far inland and along portions of the sea breeze. SPC mesoscale analysis continues to show mlcapes getting up to 2,500-3,000 j kg and dcapes approaching 1,200 j kg. This could lead to some marginally severe pulse storms with damaging winds. Steering winds aloft are fairly light, which is causing slow storm movements. With deep moisture in place (pwats around 2"), very heavy rainfall is a concern with local flooding possible in low-lying and poorly drained areas. Cams continue to be in good agreement showing the thunderstorms diminishing around sunset. Tonight: our area will remain between atlantic high pressure and troughing inland. Both the synoptic models and the cams are in good agreement showing land areas relatively dry while there is a small risk of late night showers over the coastal waters. Temperatures will remain mild. Short term 6 am Friday morning through Sunday Friday through Sunday: outside any thunderstorms, heat index values will top out in the 105-109f range at many locations, and heat index values could briefly top out around 110f at some locations near the coast just inland from the beaches as the sea breeze pushes inland. Guidance depicts above normal pops Friday afternoon early evening, especially across southeast ga, due in part to an enhanced weakness in the upper ridge over the region. Capped maximum pops around 50 percent across SE ga, but locally greater pops could eventually be required. In typical fashion for mid-july, a couple of pulse thunderstorms could briefly become severe with damaging wind gusts. Saturday and Sunday: per latest guidance, only subtle changes in the configuration of the upper ridge and inland surface trough could translate to reduced coverage of diurnal afternoon into evening thunderstorms as compared with Friday afternoon evening. The risk for brief isolated damaging wind gusts will continue each afternoon evening. Long term Sunday night through Thursday Moderate confidence this period. The low-level lee-side trough looks to persist early in the week before deeper troughing likely moves into the area for mid week. This will mean increasing rain chances and lower temperatures, although hesitate to be too aggressive with rain chances so far out given the rarity of summertime cold fronts in this part of the country. Heat indices could still be near 110 |
degrees through Monday but the risk for heat advisories will likely be over starting Tuesday. Aviation 20z Thursday through Tuesday 18z tafs:VFR for much of the afternoon. Thunderstorms are expected across portions of the area from late this afternoon through early this evening. The most likely times these will occur near the TAF sites is covered by vcts. There is a high level of difficulty determining precise flight restrictions and timing. Amendments may be made later based on radar trends and possibly to add tempo groups. The thunderstorms will dissipate by later this evening, allowingVFR to prevail. Extended aviation outlook:VFR much of this period. Brief flight restrictions and gusty shifting winds could occur within near thunderstorms, especially during the afternoon evening hours. The chance for thunderstorms associated flight restrictions could be greatest Friday afternoon evening and starting Tuesday as a cold front approaches the region. Marine Tonight: the synoptic pattern will consist of high pressure in the atlantic and a trough inland. The surface pressure gradient will become elevated the first half of the night, causing the low level jet to set up. Expect S to SW winds up to 15-20 kt with higher gusts through midnight. Winds will gradually ease during the second half of the night, as the gradient lowers slightly. Seas will be in the 2-4 ft range. Friday through Tuesday: a typical summer pattern featuring a trough of low pressure inland and offshore high pressure will support a continuation of south southwest winds through the period. Wind speeds will be enhanced near the coast during the afternoon evening from the sea breeze and across coastal waters during the overnight. Through this weekend, winds should remain capped around 20 knots and seas should;d average 2-4 feet, below small craft advisory levels. Early next week, a cold front will approach the region, and the probability for local SCA conditions could increase. Chs watches warnings advisories Ga... None. Sc... None. Marine... None. Near term... short term... long term... Rjb aviation... marine... |
Weather Reporting Stations
EDIT (on/off) Help NOTE: Click on distance to see the station location on a map| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
| FPKG1 - 8670870 - Fort Pulaski, GA | 24 mi | 60 min | SSW 9.9 G 17 | 88°F | 87°F | 1016.4 hPa | ||
| SAXG1 - Sapelo Island Reserve, GA | 37 mi | 72 min | SSE 12 | 87°F | 1016 hPa (-2.0) | 77°F | ||
| 41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA | 45 mi | 82 min | S 18 G 19 | 84°F | 85°F | 3 ft | 1016.3 hPa (-2.0) | 76°F |
Wind History for Fort Pulaski, GA
(wind in knots) EDIT (on/off) Help| 6 PM | 7 PM | 8 PM | 9 PM | 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 | |
| Last 24hr | S G11 | SW G13 | SW G8 | SW G16 | W G13 | W G10 | W G8 | W | SW | W G7 | SW | SW | SW | W G9 | W | NW | W | NW | S | S G12 | S G14 | S G12 | S G14 | S G13 |
| 1 day ago | SE G11 | SE | S G8 | S G8 | S | S | SW | SW | SW | SW | SW | SW | SW | W | W | W | NW | N | NW | W | SW G13 | SW G9 | SW | S G10 |
| 2 days ago | S | S G8 | S | S | SE | S | SW | SW | S | -- | -- | N | NW | NW | N | NW | N | E | E | E | E | E | E G12 | SE G10 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Hunter U. S. Army Airfield, GA | 11 mi | 16 min | SSE 8 | 10.00 mi | Mostly Cloudy | 88°F | 74°F | 65% | 1014.8 hPa |
| Wright Army Airfield (Fort Stewart)/Midcoast Regional Airport, GA | 13 mi | 76 min | NNW 6 G 20 | 5.00 mi | Heavy Rain | 85°F | 66°F | 55% | 1015.5 hPa |
| Savannah-Hilton Head International Airport, GA | 15 mi | 19 min | S 8 | 10.00 mi | Thunderstorm in Vicinity | 88°F | 75°F | 68% | 1015.5 hPa |
Wind History from SVN (wind in knots)
| 7 PM | 8 PM | 9 PM | 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 | |
| Last 24hr | S | S | SW | SW | W | W | SW | SW | W | S | SW | SW | SW | W | W | W | W | S | SW | SE | SE | SE | S | S |
| 1 day ago | SE | SE | S | SE | SE | S | S | Calm | Calm | Calm | Calm | Calm | Calm | W | Calm | W | SW | N | W | Calm | SE | SE | S | S |
| 2 days ago | W | SE | SE | S | E | Calm | Calm | Calm | Calm | Calm | Calm | NW | Calm | Calm | N | N | NW | Calm | N | N | N | NE | E | E |
Tide / Current Tables for Highway bridge, Ogeechee River, Georgia
EDIT Weekend mode (on/off) (on/off) Help One Week of DataHighway bridge
Click for Map
Thu -- 12:50 AM EDT 1.14 feet High Tide
Thu -- 06:31 AM EDT Sunrise
Thu -- 07:57 AM EDT Moonset
Thu -- 08:26 AM EDT 0.02 feet Low Tide
Thu -- 01:02 PM EDT 0.97 feet High Tide
Thu -- 08:23 PM EDT 0.05 feet Low Tide
Thu -- 08:30 PM EDT Sunset
Thu -- 09:59 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 12:50 AM EDT 1.14 feet High Tide
Thu -- 06:31 AM EDT Sunrise
Thu -- 07:57 AM EDT Moonset
Thu -- 08:26 AM EDT 0.02 feet Low Tide
Thu -- 01:02 PM EDT 0.97 feet High Tide
Thu -- 08:23 PM EDT 0.05 feet Low Tide
Thu -- 08:30 PM EDT Sunset
Thu -- 09:59 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| 1.1 | 1.1 | 1.1 | 1 | 0.8 | 0.6 | 0.3 | 0.1 | 0 | 0.1 | 0.3 | 0.6 | 0.9 | 1 | 0.9 | 0.8 | 0.7 | 0.5 | 0.3 | 0.1 | 0.1 | 0.1 | 0.3 | 0.6 |
Tide / Current Tables for Fort McAllister, Ogeechee River, Georgia
EDIT (on/off) Help One Week of DataFort McAllister
Click for Map
Thu -- 05:17 AM EDT 0.16 feet Low Tide
Thu -- 06:31 AM EDT Sunrise
Thu -- 07:57 AM EDT Moonset
Thu -- 10:31 AM EDT 6.47 feet High Tide
Thu -- 05:14 PM EDT 0.33 feet Low Tide
Thu -- 08:30 PM EDT Sunset
Thu -- 09:58 PM EDT Moonrise
Thu -- 10:58 PM EDT 7.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 05:17 AM EDT 0.16 feet Low Tide
Thu -- 06:31 AM EDT Sunrise
Thu -- 07:57 AM EDT Moonset
Thu -- 10:31 AM EDT 6.47 feet High Tide
Thu -- 05:14 PM EDT 0.33 feet Low Tide
Thu -- 08:30 PM EDT Sunset
Thu -- 09:58 PM EDT Moonrise
Thu -- 10:58 PM EDT 7.40 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
| 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 |
| 6.7 | 5.5 | 4 | 2.3 | 0.9 | 0.2 | 0.5 | 1.8 | 3.7 | 5.3 | 6.3 | 6.4 | 5.8 | 4.7 | 3.5 | 2.1 | 0.9 | 0.4 | 0.7 | 2 | 3.9 | 5.7 | 7 | 7.4 |
Weather Map and Satellite Images
(on/off) HelpWeather Map
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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Charleston, SC (18,4,5,8)
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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. |