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Marine Weather and Tides
Version 3.4 |
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 6:22AM | Sunset 8:23PM | Wednesday May 23, 2018 6:51 AM EDT (10:51 UTC) | Moonrise 1:47PM | Moonset 1:58AM | Illumination 61% |  |
Marine Forecasts
EDIT (on/off) Help| AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm, Including Grays Reef National Marine Sanctuary- 330 Am Edt Wed May 23 2018 Today..S winds 5 to 10 kt, increasing to 10 to 15 kt this afternoon. Seas 3 ft. A slight chance of showers and tstms this afternoon. Tonight..S winds 10 to 15 kt, diminishing to 5 to 10 kt after midnight. Seas 2 to 3 ft. A slight chance of showers. Thu..S winds 5 to 10 kt, becoming se in the afternoon. Seas 2 ft. A slight chance of showers and tstms in the morning, then a chance of showers and tstms in the afternoon. Thu night..SE winds 5 to 10 kt. Seas 2 ft. A chance of showers. A chance of tstms, mainly in the evening. Fri..SE winds 5 to 10 kt. Seas 2 ft. A chance of showers and tstms. Fri night..SE winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms, mainly in the evening. Sat..SE winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms. Sat night..SE winds 15 kt. Seas 3 to 4 ft. Showers likely with a slight chance of tstms. Sun..SE winds 15 to 20 kt. Seas 4 to 5 ft. Showers likely with a chance of tstms. Sun night..S winds 10 to 15 kt. Seas 4 to 5 ft. A chance of showers with a slight chance of tstms. Mariners are reminded that winds and seas higher in and near tstms. | AMZ300 330 Am Edt Wed May 23 2018 Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will remain to the east through Friday while a trough of low pressure lingers to the west. Developing low pressure over the gulf of mexico will slowly move north toward the central gulf coast this weekend, possibly lingering through early next week. This pattern will maintain higher than normal rain chances across southeast south carolina and southeast georgia. |
7 Day Forecast for Marine Location Near Flemington, GA
Hourly EDIT Helplocation: 31.95, -81.47 debug
Area Discussion for - Charleston, SC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kchs 230822 afdchs area forecast discussion national weather service charleston sc 422 am edt Wed may 23 2018 Synopsis High pressure will remain to the east through Friday while a trough of low pressure lingers to the west. Developing low pressure over the gulf of mexico will slowly move north toward the central gulf coast this weekend, possibly lingering through early next week. This pattern will maintain higher than normal rain chances across southeast south carolina and southeast georgia. Near term through tonight Pre-dawn: patchy low clouds and a few pockets of light fog were developing inland areas on the edge of some deeper moisture across central ga and the csra region. We think fog will be no more than a localized issue as we near dawn. A few light showers may develop to the west of i-95 close to sunrise but coverage also on the spotty side. Temps will range from the upper 60s northern inland areas to the lower 70s southern and coastal areas. Today: a moist and unsettled weather pattern on tap today as slightly deeper moisture nudges into the region while a warm season surface ridge persists offshore close to 30n. Atlantic ridging will maintain a modest feed of atlantic moisture in the lower levels. The forecast area can expect another round of convective rains today, scattered to numerous showers with a chance of diurnal tstms. Model soundings suggest a convective temp around 80 degrees with some areas in the lower 80s. Deep moisture between 850-500 mb along with a weak mid level vort and some faint upper difluence look best along and west of i-95 this afternoon and this continues to be the region where we maintained likely pops. Sea breeze convergence and mid level instability also appear to favor the area from walterboro to moncks corner but differential heating and mesoscale boundaries should go a long way as to where concentrated pockets of convective rains develop. With very low dcapes and warm mid levels, we believe the risk of strong tstms is quite low. The more pressing concern would have to be locally heavy downpours due to slow cell motions and potential for clusters of multicell. Tonight: deeper moisture tends to linger overnight with little overall change in the pattern. We maintained some 20-30 pops into the overnight with somewhat higher chances adjacent to the csra and midlands and perhaps some of inland ga zones. Clouds may thin later tonight but there could be more stratus once again with some patchy fog where clouds become thinner. Lows will be in the upper 60s to around 70 near the coast. Short term Thursday through Saturday A cold front near the santee river should stall out Thursday morning with atlantic high pressure then prevailing through the end of the week. By Saturday low pressure over the gulf of mexico should begin moving north toward the central gulf coast. This pattern will keep a tropical air mass in place with rain chances staying above normal, mostly during the afternoon and evening each day. In general we |
think the highest chances will be inland near the better moisture, instability and forcing. Some spots will likely pick up over an inch through the period. No significant flooding or severe weather is anticipated at this time. Temperatures will generally be near to above normal, especially lows. Long term Saturday night through Tuesday Not much pattern change late this week into early next week with high pressure remaining to the east and low pressure over the gulf of mexico moving north, most likely toward the north-central gulf coast. The low could stall out near the gulf coast into early next week. This pattern will mean the tropical air mass will remain in place across southeast sc ga leading to the continuation of higher than normal rain chances, especially each afternoon evening. Temperatures should generally stay near to above normal. Aviation 08z Wednesday through Sunday Kchs and ksav should remainVFR through most of the 06z cycle. However, there is some risk for low stratus and or ground fog at both sites between 09z and 12z, and a chance for shra tsra in the afternoon. Any potential for prolonged flight restrictions remains too limited at this time to show in the forecast. Extended aviation outlook: a persistent tropical air mass will lead to higher than normal rain chances into early next week, mainly each afternoon. Thunder chances will be low however given the limited instability. Some restrictions will also be possible from morning low clouds and or fog as well. Marine Broad atlantic high pressure will nose into the waters from the western atlantic through tonight. The forecast remains on track with south to southwest flow northern waters and south to southeast flow ga legs. Speeds mainly less than 15 kt with seas in the 2-4 ft range, highest beyond 20 nm. Thursday through Monday: the area will remain between low pressure to the west and high pressure to the east. A tropical cyclone may develop in the gulf of mexico later this week and track north toward the north-central gulf coast and this should lead to an increasing pressure gradient locally so we think winds and seas will be on an upward trend as a result. Advisory conditions will be possible this weekend into early next week, especially near the gulf stream. Chs watches warnings advisories Ga... None. Sc... None. Marine... None. Near term... short term... Rjb long term... Rjb aviation... Rjb marine... Rjb |
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 | 31 mi | 51 min | SW 6 G 9.9 | 75°F | 78°F | 1019 hPa (-0.0) | ||
| SAXG1 - Sapelo Island Reserve, GA | 38 mi | 51 min | SSW 5.1 | 72°F | 1019 hPa (-0.0) | 71°F | ||
| 41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA | 50 mi | 61 min | S 12 G 14 | 75°F | 75°F | 3 ft | 1018.5 hPa (+0.3) | 75°F |
Wind History for Fort Pulaski, GA
(wind in knots) EDIT (on/off) Help| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | |
| Last 24hr | SE | S G15 | SW | SW | S G15 | SE G11 | S G15 | S G10 | S G9 | S G9 | S G11 | S G12 | S G13 | S G9 | S G9 | S G9 | S G7 | S G8 | S G11 | S G13 | SW G12 | SW G12 | SW G10 | SW G10 |
| 1 day ago | E | SE | E | E | E | E | SE G13 | E G13 | SE G14 | SE G11 | S G11 | SE G13 | SE G8 | SE G7 | SE | SE | SE | SE | SE G8 | SE | SE | SE | S | SE |
| 2 days ago | SW | SW | SW | SW | S | S G9 | S | SE | SE G11 | SE G10 | SW | W | W | N | NE | E | NE | SE | SE | SE | SE | SE | SE | E |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Wright Army Airfield (Fort Stewart)/Midcoast Regional Airport, GA | 7 mi | 1.9 hrs | SSW 3 | 10.00 mi | Partly Cloudy | 70°F | 69°F | 97% | 1018.2 hPa |
| Hunter U. S. Army Airfield, GA | 18 mi | 1.9 hrs | S 5 | 10.00 mi | Partly Cloudy | 73°F | 69°F | 89% | 1017.9 hPa |
| Savannah-Hilton Head International Airport, GA | 19 mi | 58 min | S 7 | 10.00 mi | A Few Clouds | 71°F | 69°F | 94% | 1018.6 hPa |
Wind History from LHW (wind in knots)
| 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 | 12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | |
| Last 24hr | Calm | Calm | SE | E | SE | E | SE G19 | SE | SE | SE G16 | SE G15 | SE G15 | SE | SE | S | SE | Calm | Calm | Calm | Calm | S | S | S | |
| 1 day ago | NE | NE | E | NE | SW | SE G19 | E | SE | SE | SE | Calm | E | Calm | Calm | Calm | Calm | ||||||||
| 2 days ago | SE | Calm | SE | S | S | S | S | Calm | Calm | SE | Calm | Calm | N | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm |
Tide / Current Tables for Highway bridge, Ogeechee River, Georgia
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Highway bridge Click for Map Wed -- 01:59 AM EDT 0.04 feet Low Tide Wed -- 02:57 AM EDT Moonset Wed -- 06:23 AM EDT Sunrise Wed -- 06:53 AM EDT 1.10 feet High Tide Wed -- 02:33 PM EDT 0.00 feet Low Tide Wed -- 02:46 PM EDT Moonrise Wed -- 07:37 PM EDT 1.07 feet High Tide Wed -- 08:20 PM EDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 0.2 | 0.1 | 0 | 0.2 | 0.4 | 0.8 | 1 | 1.1 | 1 | 0.9 | 0.7 | 0.5 | 0.3 | 0.1 | 0 | 0 | 0.2 | 0.5 | 0.8 | 1 | 1.1 | 1 | 0.9 | 0.7 |
Tide / Current Tables for Belfast, Belfast River, Georgia
EDIT (on/off) Help One Week of Data| Belfast Click for Map Wed -- 02:57 AM EDT Moonset Wed -- 04:57 AM EDT 8.24 feet High Tide Wed -- 06:23 AM EDT Sunrise Wed -- 11:17 AM EDT 0.04 feet Low Tide Wed -- 02:46 PM EDT Moonrise Wed -- 05:43 PM EDT 8.08 feet High Tide Wed -- 08:20 PM EDT Sunset Wed -- 11:49 PM EDT 0.28 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 1.2 | 2.8 | 4.7 | 6.5 | 7.8 | 8.2 | 7.7 | 6.4 | 4.6 | 2.6 | 1 | 0.1 | 0.3 | 1.4 | 3.1 | 5.1 | 6.8 | 7.8 | 8 | 7.3 | 5.9 | 4.1 | 2.2 | 0.7 |
Weather Map and Satellite Images
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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.
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Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Charleston, SC (6,6,7,8)
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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. |