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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 6:59AM | Sunset 6:14PM | Wednesday February 20, 2019 1:54 AM EST (06:54 UTC) | Moonrise 7:37PM | Moonset 7:53AM | Illumination 99% |  |
AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 1208 Am Est Wed Feb 20 2019
.gale warning in effect until 4 am est early this morning...
Rest of tonight..NE winds 20 to 25 kt with gusts to 35 kt, diminishing to 15 to 20 kt late. Gusts to 35 kt. Seas 7 to 9 ft. Showers.
Wed..NE winds 15 to 20 kt with gusts to 25 kt, diminishing to 5 kt in the afternoon. Seas 5 to 7 ft, subsiding to 4 to 6 ft in the afternoon. Showers likely, mainly in the morning.
Wed night..SE winds 5 to 10 kt, becoming S 10 to 15 kt after midnight. Seas 4 to 5 ft. A chance of showers. Patchy fog after midnight.
Thu..SW winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of showers. Areas of fog in the morning. Patchy fog in the afternoon.
Thu night..SW winds 5 to 10 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. A slight chance of showers. Patchy fog in the evening. Areas of fog after midnight.
Fri..SE winds 5 kt, becoming E 10 to 15 kt in the afternoon. Seas 3 to 4 ft. A chance of showers.
Fri night..E winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
Sat..SE winds 10 kt. Seas 3 to 4 ft. A chance of showers.
Sat night..S winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers.
Sun..SW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers.
Sun night..W winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers.
.gale warning in effect until 4 am est early this morning...
Rest of tonight..NE winds 20 to 25 kt with gusts to 35 kt, diminishing to 15 to 20 kt late. Gusts to 35 kt. Seas 7 to 9 ft. Showers.
Wed..NE winds 15 to 20 kt with gusts to 25 kt, diminishing to 5 kt in the afternoon. Seas 5 to 7 ft, subsiding to 4 to 6 ft in the afternoon. Showers likely, mainly in the morning.
Wed night..SE winds 5 to 10 kt, becoming S 10 to 15 kt after midnight. Seas 4 to 5 ft. A chance of showers. Patchy fog after midnight.
Thu..SW winds 10 to 15 kt. Seas 4 to 5 ft. A slight chance of showers. Areas of fog in the morning. Patchy fog in the afternoon.
Thu night..SW winds 5 to 10 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft after midnight. A slight chance of showers. Patchy fog in the evening. Areas of fog after midnight.
Fri..SE winds 5 kt, becoming E 10 to 15 kt in the afternoon. Seas 3 to 4 ft. A chance of showers.
Fri night..E winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers.
Sat..SE winds 10 kt. Seas 3 to 4 ft. A chance of showers.
Sat night..S winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers.
Sun..SW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers.
Sun night..W winds 10 to 15 kt. Seas 3 to 4 ft. A slight chance of showers.
AMZ300 1208 Am Est Wed Feb 20 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. An unsettled pattern is expected as a series of frontal systems affect the area through early next week.
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. An unsettled pattern is expected as a series of frontal systems affect the area through early next week.
7 Day Forecast for Marine Location Near Port Royal, SC
Hourly EDIT Helplocation: 32.33, -80.47 debug
Area Discussion for - Charleston, SC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kchs 200547 afdchs area forecast discussion national weather service charleston sc 1247 am est Wed feb 20 2019 Synopsis An unsettled pattern is expected as a series of frontal systems affect the area through early next week. Near term until 6 am this morning As of 1245 am: kclx indicated patches of light rain lifting north across the cwa. In addition, recent observations indicated a degree or two of warming across the region. I will update the forecast to increase sky, adjust temperature trends, and increase qpf. Previous discussion: between an inland wedge and a strengthen coastal trough we'll experience an intensification of isentropic upglide, leading to an expanding area of rain and showers. Pwat in the range of at least 140-170% of normal with strong strong transport from off the atlantic, deep moisture convergence and aided by some upper difluence will lead to numerous or widespread coverage of rainfall over much of the area tonight, except scattered coverage far inland over southeast georgia. We continue to alter the coverage of pop's based on recent and anticipated radar trends, and yet again had to lower temps another 1-3f for both the hourlies and minimums given evaporative cooling effects. We considered a wind advisory for the coastal counties, but conditions of the required 30 mph or greater for sustained winds and or 40 mph or greater in gusts will cover too small of an area. Thus no advisory is planned, despite a tight gradient between the inland wedge and the offshore trough. Northeast winds will average 10-20 mph and gusty far inland, and 20-25 mph with gusts around 30 or 35 mph closer to coast. We stayed close to the wpc guidance regarding QPF the remainder of the night, equating to 1 10 to 3 10 inches most places, except for some pockets closer to 1 2 inch over parts of the coastal corridor. Short term 6 am this morning through Friday Wednesday: a transitional day toward a much warmer pattern is quite dependent on the progress of the both the coastal trough and an advancing warm front over south ga earlier in the day. The day is expected to start off unsettled with areas of light rains decreasing in coverage inland from i-95, especially over inland ga. Wet weather is expected to be ongoing along coastal sc as a weak surface wave ridges along the coastal trough not far off the coast. QPF amounts will likely be below 1 4 inch after 12z along the chs coast but a few models do show some higher amounts since the position of the coastal trough may nudge onshore in the charleston area. Widespread low clouds will tend to hang in much of day across the area with the surface wedge inland resisting the progression of the front adjacent to the csra and southeast sc midlands. There should be a large spread of afternoon temps from the low mid 50s far northeast to near 70 degrees southern ga zones. Wednesday night: the pattern favors fog development across the area but the low level gradient atop the boundary layer appears a bit too tight for dense fog, at least inland. We think widespread stratus will tend to build-down along coastal zones. For now, we are showing patchy to areas of fog in the forecast. Thursday: our region will be in the warm sector with a strong mid level anticyclone off the southeast coast keeping much of the region dry. We maintained some low pops in the afternoon with weak moisture convergence along the sea breeze corridor. Temps should approach records at both chs and sav with highs from 80 degrees to perhaps a few mid 80s in far south ga. Areas of fog are expected to develop once again on Thursday night. Friday: another warm day over southeast ga but a backdoor cold front is expected to sag into the carolinas as high pressure builds into the mid atlantic region from the great lakes. Models handle the progression of this front in a similar fashion and while scattered rains are possible, we maintained pops in chance ranges. After morning fog dissolves, highs will range from the lower 80s south of i-16 to the upper 60s north of charleston. Northern zones may end up cooler if the front ends up a little faster. Long term Friday night through Tuesday An inland wedge on Friday night with give way to a warm front on Saturday. The warm front will lift north of the area Saturday night, then a cold front will sweep through late Sunday. Cool high pressure will build in Sunday night through Monday, then shift northeast as gulf low pressure moves into the area on Tuesday. Aviation 06z Wednesday through Sunday The pressure gradient between inland high pressure and a trough over the near shore waters will support gusty NE winds through early Wednesday 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 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: flight restrictions, mainly due to low ceilings, are likely Wednesday night through Thursday morning along with a small possibility of low level wind shear. Another round of restrictions is expected Friday night with potential for low CIGS and fog. Additional restrictions are also possible later Friday into Saturday as a front drops into the area. Marine A ship report of 40 knots about 20 nm off the daufuskie and tybee island coast, and wind gusts of 37 kt at 02z at kssi, prompted the expansion of the gale warning for the amz354 waters. The other gales for amz350 and 352 remain active, with strong small craft advisories for amz330 and amz374. Previous discussion... tonight: the combination of high pressure over the northeastern u.S. And a trough developing off our coast will cause the pressure gradient to steepen further this evening. Models are in good agreement showing northeast winds 20-25 kt in the evening. With gusts to 35 kt across the sc waters, we upgraded the advisory to a gale warning through most of tonight. The ga waters remain under a small craft advisory as winds there are currently around 30 kt. But this will need to be monitored for possible inclusion within the gale warning. Regardless of how strong the winds get, models indicate they should start easing late tonight and around daybreak Wednesday, as the gradient lowers. Very steep, wind driven seas are expected. Seas should peak around 8-10 ft roughly 10-20 nm out and 10-12 ft across the outer ga waters. Wednesday and Wednesday night: marine conditions will tend to slowly improve as a warm front breaks down the inland wedge and advances northward. We maintained scas through the day Wednesday as seas remain elevated, despite a decreasing trend in wind speeds. Winds will veer south to southwest Wednesday night and Thursday with conditions below SCA criteria. Another backdoor cold front is forecast to drop into the waters on Friday with increasing northeast flow and surging especially north of the savannah river. The wedge will be short-lived as a warm front progresses north on Saturday with another cold front from the west expected late Sunday. We maintained patchy areas fog over the nearshore waters late Wednesday night into Friday due to the likely development of sea fog during this period. Surface dewpoints in the low to mid 60s will be moving over cool shelf water in the upper 50s. Tides coastal flooding The Wednesday morning high tide is likely to be the highest of the week given the persistently strong northeast winds leading up to it. Major coastal flooding is possible along the southeast south carolina and southeast georgia coast, so a coastal flood watch has been issued. The Wednesday evening astronomical high tide is the lower of the two for the day. Wind directions will have shifted to southerly by then, but residual anomalies could allow tides to approach advisory criteria at least at charleston. Chs watches warnings advisories Ga... Coastal flood watch from 7 am to 10 am est this morning for gaz117-119-139-141. Sc... Coastal flood watch from 7 am to 10 am est this morning for scz048>051. Marine... Gale warning until 4 am est early this morning for amz352-354. Gale warning until 7 am est this morning for amz350. Small craft advisory until 4 pm est Thursday for amz374. Small craft advisory until 7 am est this morning for amz330. Near term... Ned short term... long term... Jrl aviation... Ned marine... 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 |
| 41033 | 5 mi | 46 min | ENE 18 G 33 | 52°F | 1025.7 hPa | |||
| ACXS1 - ACE Basin Reserve, SC | 16 mi | 69 min | NNE 6 | 48°F | 1028 hPa | 43°F | ||
| FPKG1 - 8670870 - Fort Pulaski, GA | 31 mi | 54 min | NE 15 G 21 | 51°F | 56°F | 1026.7 hPa (-2.2) | ||
| FBIS1 - Folly Island, SC | 39 mi | 54 min | NE 28 G 32 | 51°F | 1028.5 hPa (-1.6) | 46°F | ||
| CHTS1 | 43 mi | 54 min | NNE 16 G 22 | 49°F | 56°F | 1028.4 hPa (-1.6) |
Wind History for Fort Pulaski, GA
(wind in knots) EDIT (on/off) Help| 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 | 12 AM | 1 AM | |
| Last 24hr | NE | N | NE | NE G19 | NE G27 | NE G27 | NE G25 | NE G28 | 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 |
| 1 day ago | SW G11 | SW | SW | SW | SW G7 | SW | S G7 | N G17 | NW | NW | NW | NW | NW | W | NW | W | W | NW | NW | W | N | NW | N | N |
| 2 days ago | NE G19 | NE G16 | NE | E G13 | NE | NE G15 | E | E | E G15 | E | E | E | E | E | E | E | SE | SE G4 | S | S G11 | SW G13 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Beaufort County Airport, SC | 10 mi | 79 min | NE 17 G 23 | 10.00 mi | Overcast | 46°F | 42°F | 87% | 1027.4 hPa |
| Hilton Head Island, Hilton Head Airport, SC | 14 mi | 59 min | NE 16 G 23 | 5.00 mi | Light Drizzle | 50°F | 46°F | 88% | 1027.1 hPa |
| Beaufort, Marine Corps Air Station, SC | 17 mi | 58 min | NE 11 | 9.00 mi | Light Rain | 46°F | 42°F | 86% | 1027.6 hPa |
Wind History from ARW (wind in knots)
| 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 | 12 AM | 1 AM | 2 AM | |
| Last 24hr | NE | N | NE | NE G15 | E G19 | E G21 | NE | NE G23 | NE | NE G21 | NE G21 | N G21 | NE | NE G21 | NE | NE G19 | N G16 | N G20 | NE | NE G24 | NE G24 | NE G21 | NE | NE G19 |
| 1 day ago | SW | S | SW | SW | SW | SW | NW G19 | N | NW | NW | NW | NW | NW | NW | W | Calm | SW | Calm | SW | W | NW | N | N | NE |
| 2 days ago | E | E | E | NE | NE | NE | NE | E | NE | NE | NE | E | E | SE | SE | SE | E | E | Calm | SE | S | S | S G16 | S |
Tide / Current Tables for Fripp Inlet Bridge, South Carolina
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of DataFripp Inlet Bridge
Click for Map
Wed -- 02:10 AM EST -1.76 feet Low Tide
Wed -- 06:59 AM EST Sunrise
Wed -- 07:52 AM EST Moonset
Wed -- 08:23 AM EST 7.66 feet High Tide
Wed -- 02:39 PM EST -1.43 feet Low Tide
Wed -- 06:11 PM EST Sunset
Wed -- 07:36 PM EST Moonrise
Wed -- 08:51 PM EST 7.09 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 02:10 AM EST -1.76 feet Low Tide
Wed -- 06:59 AM EST Sunrise
Wed -- 07:52 AM EST Moonset
Wed -- 08:23 AM EST 7.66 feet High Tide
Wed -- 02:39 PM EST -1.43 feet Low Tide
Wed -- 06:11 PM EST Sunset
Wed -- 07:36 PM EST Moonrise
Wed -- 08:51 PM EST 7.09 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 |
| 1.1 | -0.8 | -1.7 | -1.3 | 0.3 | 2.6 | 4.9 | 6.7 | 7.6 | 7.5 | 6.4 | 4.6 | 2.5 | 0.4 | -1.1 | -1.4 | -0.3 | 1.5 | 3.7 | 5.6 | 6.8 | 7.1 | 6.5 | 5.1 |
Tide / Current Tables for Village Creek Cemetery, Morgan River, South Carolina
EDIT (on/off) Help One Week of DataVillage Creek Cemetery
Click for Map
Wed -- 02:41 AM EST -1.76 feet Low Tide
Wed -- 06:59 AM EST Sunrise
Wed -- 07:53 AM EST Moonset
Wed -- 09:04 AM EST 8.09 feet High Tide
Wed -- 03:10 PM EST -1.43 feet Low Tide
Wed -- 06:12 PM EST Sunset
Wed -- 07:36 PM EST Moonrise
Wed -- 09:32 PM EST 7.49 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 02:41 AM EST -1.76 feet Low Tide
Wed -- 06:59 AM EST Sunrise
Wed -- 07:53 AM EST Moonset
Wed -- 09:04 AM EST 8.09 feet High Tide
Wed -- 03:10 PM EST -1.43 feet Low Tide
Wed -- 06:12 PM EST Sunset
Wed -- 07:36 PM EST Moonrise
Wed -- 09:32 PM EST 7.49 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 |
| 2.6 | 0.3 | -1.4 | -1.7 | -0.6 | 1.4 | 3.8 | 6 | 7.5 | 8.1 | 7.6 | 6.1 | 4.1 | 1.7 | -0.4 | -1.4 | -1 | 0.5 | 2.6 | 4.7 | 6.4 | 7.4 | 7.4 | 6.4 |
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 (1,6,7,8)
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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. |