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Marine Weather and Tides
Version 3.4 |
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 7:02AM | Sunset 6:18PM | Wednesday February 20, 2019 10:11 AM EST (15:11 UTC) | Moonrise 7:41PM | Moonset 7:57AM | Illumination 99% |  |
AMZ354 Waters From Savannah Ga To Altamaha Sound Ga Out 20 Nm, Including Grays Reef National Marine Sanctuary- 1003 Am Est Wed Feb 20 2019
.small craft advisory in effect until noon est today...
Rest of today..SE winds 5 to 10 kt. Seas 4 to 6 ft, subsiding to 4 to 5 ft this afternoon. A chance of showers late this morning, then a slight chance of showers this afternoon.
Tonight..S winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 5 ft. A slight chance of showers. Patchy fog in the evening. Areas of dense fog after midnight.
Thu..S winds 10 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. A slight chance of showers in the morning. Areas of fog.
Thu night..S winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers in the evening. Patchy fog in the evening, then areas of fog after midnight.
Fri..S winds 5 kt, becoming E in the afternoon. Seas 2 to 3 ft. A slight chance of showers.
Fri night..E winds 10 to 15 kt. Seas 3 ft. A slight chance of showers.
Sat..SE winds 5 to 10 kt. Seas 3 ft. A slight chance of showers.
Sat night..S winds 10 to 15 kt. Seas 3 ft. A slight chance of showers.
Sun..SW winds 15 kt. Seas 3 ft. A chance of showers.
Sun night..NW winds 10 to 15 kt. Seas 3 to 4 ft.
.small craft advisory in effect until noon est today...
Rest of today..SE winds 5 to 10 kt. Seas 4 to 6 ft, subsiding to 4 to 5 ft this afternoon. A chance of showers late this morning, then a slight chance of showers this afternoon.
Tonight..S winds 5 to 10 kt, increasing to 10 to 15 kt after midnight. Seas 4 to 5 ft. A slight chance of showers. Patchy fog in the evening. Areas of dense fog after midnight.
Thu..S winds 10 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. A slight chance of showers in the morning. Areas of fog.
Thu night..S winds 5 to 10 kt. Seas 3 to 4 ft. A slight chance of showers in the evening. Patchy fog in the evening, then areas of fog after midnight.
Fri..S winds 5 kt, becoming E in the afternoon. Seas 2 to 3 ft. A slight chance of showers.
Fri night..E winds 10 to 15 kt. Seas 3 ft. A slight chance of showers.
Sat..SE winds 5 to 10 kt. Seas 3 ft. A slight chance of showers.
Sat night..S winds 10 to 15 kt. Seas 3 ft. A slight chance of showers.
Sun..SW winds 15 kt. Seas 3 ft. A chance of showers.
Sun night..NW winds 10 to 15 kt. Seas 3 to 4 ft.
AMZ300 1003 Am Est Wed Feb 20 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A nearly stationary front will meander near the area through Saturday morning. A cold front will sweep through from the west late Sunday, followed by high pressure on Monday. A low pressure system could affect the area next Tuesday.
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A nearly stationary front will meander near the area through Saturday morning. A cold front will sweep through from the west late Sunday, followed by high pressure on Monday. A low pressure system could affect the area next Tuesday.
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 201227 afdchs area forecast discussion national weather service charleston sc 727 am est Wed feb 20 2019 Synopsis A nearly stationary front will meander near the area through Saturday morning. A cold front will sweep through from the west late Sunday, followed by high pressure on Monday. A low pressure system could affect the area next Tuesday. Near term through tonight As of 640 am: light rain will continue to spread across the sc lowcountry and portions of SE ga this morning. Despite the light rain, temperatures continue to slowly warm across the cwa. I will issue a update to align temperatures to observations. As of 415 am: nam12 indicated widespread isentropic lift between 295-305k from early this morning until mid day. The isentropic lift will remain west ahead of a inland bound sfc trough warm front. Deep moisture and llvl forcing should support rounds of light rainfall this morning, generally lifting north of the forecast area this afternoon. Rainfall amounts are forecast to range from around .4" across portions of berkeley and northern charleston counties to less than a tenth across inland ga. High temperatures will be quite challenging today, largely dependent on the placement and timing of the warm front. Following the latest warming morning temps and latest mos, I will forecast high temps from the mid 70s across altamaha river border counties to near 60 far inland. Tonight: the warm front will completely lift north of the forecast area as a cold front slides east off the southern appalachians. Winds across the CWA is forecast to shift from the south late this evening and will remain through tonight. Sfc dewpoints are expected to warm into the low 60s by midnight. Near shore buoys indicate that water temperatures remain in the mid 50s. Warm and moisture return flow across the cooler shelf waters will favor the development of sea fog, building over the coast with time. At this time, it is uncertain if the fog will become widespread and dense or remain patchy dense. Low temperatures around 60 will be common tonight. Short term Thursday through Saturday The area should be solidly in the warm-sector on Thursday with the front to the north. We may see some brief, partial clearing during the daytime hours. Temps soaring into the upper 70s to lower 80s and dewpoints in the low to mid 60s will produce modest surface-based instability. We held onto a slight chance of showers given weak upper shortwave energy propagating through the area. Thursday night the front to our north will begin shifting south, potentially moving into our far northern zones close to daybreak Friday. Isentropic ascent will gradually increase overnight with scattered showers possible, mainly inland. Conditions look ripe for areas of fog to develop along and south of the front. The backdoor cold front will drop south to near the savannah river on Friday, allowing northeast flow to redevelop over southern sc. Isentropic ascent will strengthen from north to south during the day, likely producing scattered showers mainly over southern sc, highest coverage inland. High temps will range from lower 60s far north to lower 80s far south. The stalled front will remain across the area through Friday night, then slowly move north on Saturday. Rain chances will gradually dwindle during this period. Highs on Saturday will be in the mid to upper 70s in most locations. Long term Saturday night through Tuesday A potent cold front will sweep through the area Sunday afternoon though only scattered showers are expected to accompany it. Strong warm air advection ahead of the front will produce high temps in the upper 70s on Sunday. Somewhat cooler weather is in store for Monday through Wednesday as a series of high pressure areas move into the area. A gulf low pressure system could bring some rain to the area Tuesday and Tuesday night. Aviation 13z Wednesday through Sunday The pressure gradient between inland high pressure and a trough over the near shore waters will support steady NE winds through early this morning. The coastal trough will drift slowly |
onshore during the daylight hours, becoming a warm front. Low level lift ahead of the coastal trough warm front will support ifr to MVFR ceilings and periods of light rain. The warm front is forecast to slide west of the terminals by this evening. Flow will shift from the south and sea fog is expected to develop across the shelf waters, then advect onshore impacting the terminals as ifr ceilings and possibly ifr visibility. Extended aviation outlook: low ceilings are likely Wednesday night through Thursday morning. Low ceilings and or reduced visibility likely Thursday night through Saturday morning. Marine I will update to remove gale warning for amz350 and replace it with a small craft advisory until midnight. I will also remove the advisory for the harbor. Previous discussion: today: ridging high pressure this morning will shift inland as an inverted trough warm front slides across the near shore waters today. Early this morning, gusty NE winds should continue across the marine area, weakening steadily around dawn. Small craft advisory for the chs harbor will remain until 7am. Outside the harbor, seas will gradually improve through the daylight hours into tonight. Conditions will see the earliest improvement across the near shore ga waters. Remaining gale warning for amz350 is expected to be replaced by a small craft by 7 am. Tonight: in the wake of the passing warm front, winds will remain steady from the sw. Sfc dewpoints are expected to warm into the low 60s by midnight. Near shore buoys indicate that water temperatures remain in the mid 50s. Warm and moisture return flow across the cooler shelf waters will favor the development of sea fog, building over the coast with time. At this time, it is uncertain if the fog will become widespread and dense or remain patchy dense. Wave heights of six feet should be limited to the outer portions of amz350 and 374. A brief window for small craft advisory conditions will exist late Friday night over the charleston sc nearshore waters behind a backdoor cold front. More widespread SCA conditions are possible Sunday ahead of a cold front. The more significant concern is the likely development and persistence of sea fog due to surface dewpoints in the low to mid 60s moving over the cool shelf waters. The most likely time frame will be Thursday and Thursday night when low-level flow is southerly. By midday Friday the winds will be northeast which is less favorable. Tides coastal flooding This morning's high tide is likely to be the highest of the week given the gusty northeast winds along the coast. Major coastal flooding is possible along the southeast south carolina and southeast georgia coast, a coastal flood warning is in effect until 11 am. A coastal flood advisory is in effect for tidal berkeley co. Until 11 am. This evening's astronomical high tide is the lower of the two for the day. Wind directions are forecast to shift from the south by then, but residual anomalies could allow tides to approach advisory criteria at least at charleston. Chs watches warnings advisories Ga... Coastal flood warning until 11 am est this morning for gaz117- 119-139-141. Sc... Coastal flood warning until 11 am est this morning for scz048>051. Coastal flood advisory until 11 am est this morning for scz052. Marine... Small craft advisory until noon est today for amz352-354. Small craft advisory until midnight est tonight for amz350. Small craft advisory until 4 pm est Thursday for amz374. Near term... Ned short term... Jrl long term... Jrl aviation... Jrl ned marine... Jrl ned tides coastal flooding... |
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 | 42 min | NE 9.9 G 13 | 58°F | 56°F | 1022.1 hPa | ||
| SAXG1 - Sapelo Island Reserve, GA | 38 mi | 72 min | NNE 8.9 | 57°F | 1022 hPa (+1.0) | 56°F | ||
| 41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA | 50 mi | 82 min | SSE 1.9 G 5.8 | 63°F | 58°F | 6 ft | 1021.1 hPa (+1.0) | 62°F |
Wind History for Fort Pulaski, GA
(wind in knots) EDIT (on/off) Help| 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 | 7 AM | 8 AM | 9 AM | |
| Last 24hr | NE G26 | NE G21 | NE G21 | NE G20 | NE | NE G20 | NE G24 | NE G26 | NE G29 | NE G17 | NE | NE G18 | NE G20 | NE G23 | NE G27 | NE G21 | NE G24 | NE G28 | NE G29 | NE G21 | NE G23 | NE G11 | NE | NE G14 |
| 1 day ago | NW | NW | NW | NW | NW | W | NW | W | W | NW | NW | W | N | NW | N | N | NE | N | NE | NE G19 | NE G27 | NE G27 | NE G25 | NE G28 |
| 2 days ago | NE G15 | E | E | E G15 | E | E | E | E | E | E | E | SE | SE G4 | S | S G11 | SW G13 | SW G11 | SW | SW | SW | SW G7 | SW | S G7 | N G17 |
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 | 76 min | NNE 4 | 10.00 mi | Overcast | 54°F | 53°F | 98% | 1022 hPa |
| Hunter U. S. Army Airfield, GA | 18 mi | 76 min | NNE 4 | 10.00 mi | Overcast | 57°F | 55°F | 93% | 1021.6 hPa |
| Savannah-Hilton Head International Airport, GA | 19 mi | 19 min | NNE 6 | 7.00 mi | Overcast | 54°F | 53°F | 97% | 1022.4 hPa |
Wind History from LHW (wind in knots)
| 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 | 7 AM | 8 AM | 9 AM | |
| Last 24hr | NE | NE | NE | NE | NE | NE G16 | NE | NE | N | N | N G17 | NE G20 | NE G20 | NE G16 | NE | NE | NE | NE | NE | NE | NE | NE | NE | |
| 1 day ago | N | N | NW | NW | W | W | W | W | NW | W | Calm | W | SW | Calm | Calm | N | N | N | N | NE | NE | NE | E G18 | E G19 |
| 2 days ago | E | E | E | SE | E | E | SE | E | SE | SE | SE | SE | S | SE | S | S | SW | SW | S | SW | SW | SW | N |
Tide / Current Tables for Highway bridge, Ogeechee River, Georgia
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataHighway bridge
Click for Map
Wed -- 06:50 AM EST -0.26 feet Low Tide
Wed -- 07:02 AM EST Sunrise
Wed -- 07:55 AM EST Moonset
Wed -- 11:47 AM EST 1.29 feet High Tide
Wed -- 06:15 PM EST Sunset
Wed -- 07:20 PM EST -0.21 feet Low Tide
Wed -- 07:40 PM EST Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 06:50 AM EST -0.26 feet Low Tide
Wed -- 07:02 AM EST Sunrise
Wed -- 07:55 AM EST Moonset
Wed -- 11:47 AM EST 1.29 feet High Tide
Wed -- 06:15 PM EST Sunset
Wed -- 07:20 PM EST -0.21 feet Low Tide
Wed -- 07:40 PM EST 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 | 0.8 | 0.6 | 0.3 | -0 | -0.2 | -0.3 | -0 | 0.4 | 0.9 | 1.2 | 1.3 | 1.2 | 1 | 0.8 | 0.5 | 0.2 | -0.1 | -0.2 | -0.1 | 0.2 | 0.6 | 1 |
Tide / Current Tables for Belfast, Belfast River, Georgia
EDIT (on/off) Help One Week of DataBelfast
Click for Map
Wed -- 03:36 AM EST -2.11 feet Low Tide
Wed -- 07:02 AM EST Sunrise
Wed -- 07:55 AM EST Moonset
Wed -- 09:51 AM EST 9.73 feet High Tide
Wed -- 04:05 PM EST -1.71 feet Low Tide
Wed -- 06:15 PM EST Sunset
Wed -- 07:40 PM EST Moonrise
Wed -- 10:19 PM EST 9.01 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 03:36 AM EST -2.11 feet Low Tide
Wed -- 07:02 AM EST Sunrise
Wed -- 07:55 AM EST Moonset
Wed -- 09:51 AM EST 9.73 feet High Tide
Wed -- 04:05 PM EST -1.71 feet Low Tide
Wed -- 06:15 PM EST Sunset
Wed -- 07:40 PM EST Moonrise
Wed -- 10:19 PM EST 9.01 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 |
| 5.3 | 2.7 | 0 | -1.8 | -2 | -0.5 | 2.1 | 5 | 7.6 | 9.3 | 9.7 | 8.9 | 7 | 4.5 | 1.7 | -0.7 | -1.7 | -1.1 | 0.9 | 3.5 | 6.1 | 8 | 8.9 | 8.7 |
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.
Link to Loop
Other links: Northern Pacific Contential US Full GOES-East
Wind Forecast for Charleston, SC (10,2,3,4)
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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. |