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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 6:28AM | Sunset 8:30PM | Friday July 19, 2019 5:57 AM EDT (09:57 UTC) | Moonrise 9:34PM | Moonset 7:49AM | Illumination 95% |  |
AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 323 Am Edt Fri Jul 19 2019
Today..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms this afternoon.
Tonight..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms in the evening.
Sat..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms in the morning.
Sat night..SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft. A slight chance of showers and tstms in the evening, then a chance of showers and tstms after midnight.
Sun..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.
Sun night..SW winds 15 kt with gusts to 20 kt. Seas 3 ft. A slight chance of showers and tstms.
Mon..SW winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms.
Mon night..SW winds 10 to 15 kt. Seas 3 to 4 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.
Today..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms this afternoon.
Tonight..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms in the evening.
Sat..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms in the morning.
Sat night..SW winds 10 to 15 kt with gusts to 20 kt. Seas 3 ft. A slight chance of showers and tstms in the evening, then a chance of showers and tstms after midnight.
Sun..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.
Sun night..SW winds 15 kt with gusts to 20 kt. Seas 3 ft. A slight chance of showers and tstms.
Mon..SW winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms.
Mon night..SW winds 10 to 15 kt. Seas 3 to 4 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 323 Am Edt Fri Jul 19 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. The area will remain situated between an inland trough 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.. The area will remain situated between an inland trough 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 Hilton Head Island, SC
Hourly EDIT Helplocation: 32.22, -80.77 debug
Area Discussion for - Charleston, SC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kchs 190801 afdchs area forecast discussion national weather service charleston sc 401 am edt Fri jul 19 2019 Synopsis The area will remain situated between an inland trough 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 through tonight Today: a weak flow will prevail aloft with a short wave trough generally atop the local area, stuck between one anticyclone over the mid ms valley and another across the southwest atlantic. The surface and low level synoptic pattern is essentially the same as it has been the past couple of days, with a lee side trough and the oceanic ridge aligned east-west along 30 degrees north latitude. Moisture, instability and lift are favorable for more showers and t-storms this occur afternoon, mainly initiated by the sea breeze and proximity to the inland trough, aided by some weak dpva aloft. The morning cap of 2-4c will take some time to break, especially with convective temps in the lower and middle 90s. That would allow for the start of convection around 1-2 pm, with coverage to peak at least in the scattered range during the late afternoon when the stronger updrafts are shown by the href. The highest pop of 50% will be near and west of i-95, but there certainly could be higher coverage as boundary interactionsoccur. Compared to yesterday, dcape today is less (only around 800-1000 j kg) and we don't have much dry air in the vertical. Thus the potential for severe winds might be a little lower than it was Thursday. Still, where boundary collisions occur, a few pulse severe storms can occur after 3 or 4 pm. Since there isn't much steering flow and pwat is near 2 inches, some of the storms will produce locally heavy rains leading to localized flooding. Temps are starting the day a little "cooler" than recent mornings, and with an earlier start to showers and t-storms than yesterday, we shouldn't be quite as hot, with MAX temps generally in the lower and middle 90s. Associated heat indices will stay short of any requirement of a heat advisory. Our hourly temps will show the impacts of the convection and greater cover of clouds late in the day, with values much lower than the typical diurnal curve wherever we have 50% pop. Tonight: convection will gradually diminish in strength and coverage during the mid and late evening, probably entirely shutting off by 11 pm. The rest of the night will then be rainfree, as any late night convection that forms over the ocean will remain offshore where the better instability and convergence will be found. Lows will be near or slightly above climo, as cloud cover decreases during the post midnight hours. Short term Saturday through Monday Saturday and Sunday: broad upper ridging will accompany the familiar summer pattern of surface ridging along 30n through the southwest atlantic and an inland piedmont surface trough from northeast ga to the carolinas. Isolated to scattered mainly diurnal convection is anticipated both days with models keying in some drier mid upper level air, keeping pops in the 30 to 40 percent range from beaches to inland on Saturday with even less coverage expected on Sunday. Hot temps will persist with highs at least in the mid 90s and peak heat indices in the 105 to 110 degree ranges. Monday: upper ridging begins an erosion trend and high temps should be a degree or two below Sunday's but still in the lower to mid 90s. |
Scattered afternoon and evening showers and tstms mainly late day and more prominent well inland closer to the surface trough. Long term Monday night through Thursday A substantial pattern change for the southeast states with the summer ridge giving way to broad mid upper level troughing. A slow moving cold front is forecast to drift from the mountains on Tuesday, over eastern ga and the coastal carolinas during mid week. Confidence continues to slowly increase for numerous showers and tstms across the forecast area during the middle of next week. The increase in clouds and precip will result in lower temps that average near or slightly below climo after Tuesday. Aviation 08z Friday through Tuesday Vfr conditions will prevail into at least early afternoon. Thereafter we expect widely scattered to scattered shra tsra at or near the terminals, with the highest probabilities of flight restrictions to occur roughly between 19z and 24z. For now we have just vcts and CB clouds, but subsequent TAF issuances will likely require more definitive impacts. Extended aviation outlook: 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 starting Tuesday as a cold front approaches the region. Marine Today and tonight: the local waters will remain between an inland ridge to the west-northwest and the typical bermuda- azores high to the southeast. What isn't typical is that there is a fairly tight gradient between these two features, and when sea breeze circulations and nocturnal low level jet impacts are thrown into the mix, sw'erly winds will be as high as 15 to 20 kt at times. The resulting seas will average between 2 and 4 feet. For the time being it looks like the coverage of t-storms will be isolated through the period. This weekend: a similar synoptic pattern will persist with a trough of low pressure inland and offshore high pressure. Southwest to south directions will persist with speeds enhanced near the coast during the afternoon evening hours and across coastal waters during the evening overnight. Through this weekend, winds should remain in the 15 to 20 knot range during surging periods with seas in the 2 to 4 feet, highest well offshore. Early next week, not much change with slightly lower diurnal wind speeds and seas 2-3 ft. By midweek, a slow moving cold front is expected to near the waters with light winds and slight seas. The main change will be a significant uptick in coverage of showers and tstms by Wednesday. Chs watches warnings advisories Ga... None. Sc... None. Marine... None. Near term... short term... long term... 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 | 15 mi | 64 min | WSW 1.9 G 4.1 | 79°F | 86°F | 1017 hPa | ||
| 41033 | 20 mi | 50 min | W 9.7 G 12 | 84°F | 87°F | 1016.6 hPa | ||
| ACXS1 - ACE Basin Reserve, SC | 29 mi | 73 min | Calm | 78°F | 1016 hPa | 75°F | ||
| FBIS1 - Folly Island, SC | 57 mi | 58 min | SW 7 G 9.9 | 83°F | 1016.7 hPa (-0.4) | 79°F |
Wind History for Fort Pulaski, GA
(wind in knots) EDIT (on/off) Help| 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 | 3 AM | 4 AM | 5 AM | |
| Last 24hr | SW | W G9 | W | NW | W | NW | S | S G12 | S G14 | S G12 | S G14 | S G13 | SW G11 | SW G15 | SW G15 | SW G12 | W | SW G9 | W | SW | S | W | W | W |
| 1 day ago | SW | W | W | W | NW | N | NW | W | SW G13 | SW G9 | SW | S G10 | S G11 | SW G13 | SW G8 | SW G16 | W G13 | W G10 | W G8 | W | SW | W G7 | SW | SW |
| 2 days ago | NW | NW | N | NW | N | E | E | E | E | E | E G12 | SE G10 | SE G11 | SE | S G8 | S G8 | S | S | SW | SW | SW | SW | SW | SW |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Hilton Head Island, Hilton Head Airport, SC | 4 mi | 2 hrs | N 0 | 10.00 mi | Fair | 77°F | 73°F | 89% | 1016.6 hPa |
| Beaufort County Airport, SC | 15 mi | 63 min | WSW 5 | 7.00 mi | Fair | 79°F | 71°F | 79% | 1016.6 hPa |
| Savannah-Hilton Head International Airport, GA | 23 mi | 65 min | N 0 | 10.00 mi | Fair | 77°F | 73°F | 90% | 1016.7 hPa |
| Hunter U. S. Army Airfield, GA | 24 mi | 2 hrs | W 3 | 10.00 mi | Mostly Cloudy | 76°F | 72°F | 89% | 1016.2 hPa |
Wind History from HXD (wind in knots)
| 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 | 3 AM | 4 AM | |
| Last 24hr | S | S | SW | SW | SW | S | S | S | S | S | S G17 | S | S | S | S | W | Calm | SW | Calm | Calm | Calm | Calm | ||
| 1 day ago | Calm | Calm | Calm | Calm | Calm | N | NW | NW | E | SE | S | S | S | S | S | S | G17 | SW G16 | SW | |||||
| 2 days ago | Calm | Calm | N | NE | NE | NE | NE | E | E | SE G11 | SE | SE | SE | S | S | SW | Calm |
Tide / Current Tables for Skull Creek, south entrance, Hilton Head Island, South Carolina
EDIT Weekend mode (on/off) (on/off) Help One Week of DataSkull Creek
Click for Map
Fri -- 04:59 AM EDT 0.27 feet Low Tide
Fri -- 06:29 AM EDT Sunrise
Fri -- 08:49 AM EDT Moonset
Fri -- 10:56 AM EDT 6.83 feet High Tide
Fri -- 04:57 PM EDT 0.54 feet Low Tide
Fri -- 08:29 PM EDT Sunset
Fri -- 10:32 PM EDT Moonrise
Fri -- 11:20 PM EDT 7.67 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 04:59 AM EDT 0.27 feet Low Tide
Fri -- 06:29 AM EDT Sunrise
Fri -- 08:49 AM EDT Moonset
Fri -- 10:56 AM EDT 6.83 feet High Tide
Fri -- 04:57 PM EDT 0.54 feet Low Tide
Fri -- 08:29 PM EDT Sunset
Fri -- 10:32 PM EDT Moonrise
Fri -- 11:20 PM EDT 7.67 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 |
| 7.2 | 5.9 | 4.2 | 2.4 | 0.9 | 0.3 | 0.8 | 2.2 | 3.9 | 5.4 | 6.5 | 6.8 | 6.4 | 5.3 | 3.8 | 2.3 | 1 | 0.5 | 1.1 | 2.5 | 4.2 | 5.8 | 7 | 7.6 |
Tide / Current Tables for Savannah River Entrance, Georgia Current
EDIT (on/off) Help One Week of DataSavannah River Entrance
Click for Map
Fri -- 03:14 AM EDT -2.03 knots Max Ebb
Fri -- 05:47 AM EDT 0.01 knots Slack
Fri -- 06:30 AM EDT Sunrise
Fri -- 08:09 AM EDT 1.81 knots Max Flood
Fri -- 08:50 AM EDT Moonset
Fri -- 11:47 AM EDT -0.00 knots Slack
Fri -- 03:09 PM EDT -1.56 knots Max Ebb
Fri -- 05:49 PM EDT 0.00 knots Slack
Fri -- 08:22 PM EDT 1.83 knots Max Flood
Fri -- 08:28 PM EDT Sunset
Fri -- 10:32 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 03:14 AM EDT -2.03 knots Max Ebb
Fri -- 05:47 AM EDT 0.01 knots Slack
Fri -- 06:30 AM EDT Sunrise
Fri -- 08:09 AM EDT 1.81 knots Max Flood
Fri -- 08:50 AM EDT Moonset
Fri -- 11:47 AM EDT -0.00 knots Slack
Fri -- 03:09 PM EDT -1.56 knots Max Ebb
Fri -- 05:49 PM EDT 0.00 knots Slack
Fri -- 08:22 PM EDT 1.83 knots Max Flood
Fri -- 08:28 PM EDT Sunset
Fri -- 10:32 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 |
| -0.4 | -1.3 | -1.8 | -2 | -1.9 | -1 | 0.3 | 1.4 | 1.8 | 1.6 | 1.2 | 0.7 | -0.2 | -1 | -1.5 | -1.6 | -1.5 | -0.9 | 0.2 | 1.2 | 1.8 | 1.7 | 1.4 | 0.9 |
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 (5,6,7,8)
(on/off) Help
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. |