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Marine Weather and Tides
Version 3.4 |
10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports. 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 7:29AM | Sunset 6:45PM | Monday October 21, 2019 3:28 AM EDT (07:28 UTC) | Moonrise 12:00AM | Moonset 1:36PM | Illumination 49% |  |
AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 153 Am Edt Mon Oct 21 2019
Rest of tonight..N winds 5 kt. Seas 2 to 3 ft.
Mon..E winds 5 to 10 kt. Seas 2 ft.
Mon night..SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers with a slight chance of tstms after midnight.
Tue..SW winds 10 to 15 kt. Seas 3 ft. A slight chance of tstms. A chance of showers in the morning, then showers likely in the afternoon.
Tue night..W winds 10 to 15 kt, becoming nw 15 to 20 kt after midnight. Seas 3 to 4 ft. Showers likely with a slight chance of tstms in the evening.
Wed..N winds 10 to 15 kt. Seas 2 to 3 ft.
Wed night..NE winds 10 kt. Seas 2 ft.
Thu..NE winds 10 to 15 kt. Seas 2 to 3 ft.
Thu night..E winds 10 to 15 kt. Seas 3 ft. A chance of showers with a slight chance of tstms.
Fri..E winds 10 to 15 kt. Seas 3 ft. A chance of showers with a slight chance of tstms.
Fri night..SE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers with a slight chance of tstms. Mariners are reminded that winds and seas higher in and near tstms.
Rest of tonight..N winds 5 kt. Seas 2 to 3 ft.
Mon..E winds 5 to 10 kt. Seas 2 ft.
Mon night..SE winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers with a slight chance of tstms after midnight.
Tue..SW winds 10 to 15 kt. Seas 3 ft. A slight chance of tstms. A chance of showers in the morning, then showers likely in the afternoon.
Tue night..W winds 10 to 15 kt, becoming nw 15 to 20 kt after midnight. Seas 3 to 4 ft. Showers likely with a slight chance of tstms in the evening.
Wed..N winds 10 to 15 kt. Seas 2 to 3 ft.
Wed night..NE winds 10 kt. Seas 2 ft.
Thu..NE winds 10 to 15 kt. Seas 2 to 3 ft.
Thu night..E winds 10 to 15 kt. Seas 3 ft. A chance of showers with a slight chance of tstms.
Fri..E winds 10 to 15 kt. Seas 3 ft. A chance of showers with a slight chance of tstms.
Fri night..SE winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers with a slight chance of tstms. Mariners are reminded that winds and seas higher in and near tstms.
AMZ300 153 Am Edt Mon Oct 21 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure over the region tonight will begin to weaken on Monday. A frontal system will affect the area Monday night and Tuesday. High pressure will rebuild late Tuesday through Thursday before another storm system potentially moves in Friday or Saturday.
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure over the region tonight will begin to weaken on Monday. A frontal system will affect the area Monday night and Tuesday. High pressure will rebuild late Tuesday through Thursday before another storm system potentially moves in Friday or Saturday.
7 Day Forecast for Marine Location Near Burton, SC
Hourly EDIT Helplocation: 32.41, -80.7 debug
Area Discussion for - Charleston, SC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kchs 210607 afdchs area forecast discussion national weather service charleston sc 207 am edt Mon oct 21 2019 Synopsis High pressure over the region tonight will begin to weaken on Monday. A frontal system will affect the area Monday night and Tuesday. High pressure will rebuild late Tuesday through Thursday before another storm system potentially moves in Friday or Saturday. Near term until 6 am this morning Early this morning: looks like a quiet night ahead with no chance for rain. The main forecast issue is the potential for fog and stratus development, mainly inland. However, the forecast isn't straightforward as fog development will be battling high clouds streaking in from the southwest, as well as a modest increase in low level flow that could hinder development. But, just stepping outside it just feels like a fog night as most observations sites are already at saturation with calm winds. Guidance is mixed with the areal extent and visibility, but generally favors interior southeast georgia for the best coverage. The forecast pretty much carries patchy fog everywhere to account for at least some shallow ground fog. Then there is an inland tier with areas of fog mentioned. Short term 6 am this morning through Wednesday Monday: we maintained a dry forecast as deep layered dry air persists above 850 mb for much of the region. Weak return flow across far southeast ga will extend west along the gulf coast as a broad baroclinic zone will be in a genesis stage. Isolated showers may develop just prior to sunset in our far southern ga coastal zones, however we preferred onset of pops to fall into the Monday night period. Skies should become partly cloudy most areas by afternoon with warm temps in the upper 70s to near 80 sc and lower 80s in ga. Monday night and Tuesday: deep moisture advection is forecast on Monday night across the region as a warm front lifts north after midnight. We continue to trend upward with rain chances late night as models indicate a fairly extensive band of convective rains advancing north. Temps will rise overnight with many of our minimum temps likely occurring in the evening hours before clouds thicken and showers increasing. On Tuesday, a deep long wave trough will blanket much the u.S. East of the rockies. Our area will see slow but steady mid level height falls as a cold front advances through the area reaching the coast in the afternoon. Showers and a few tstms will accompany and precede the front. The risk of severe weather does not look too impressive despite strong wind fields aloft and warm low- level temps prior to fropa. Latest models show instability parameters weakening during the afternoon hours as low level dew points decrease in a mixing low level environment. Highs will reach the lower to mid 80s most areas ahead of the front. Wednesday: dry and cooler conditions as high pressure builds over the southeast states. Highs should only reach the lower to mid 70s from north to south. Long term Wednesday night through Sunday |
Dry high pressure is expected to persist Wednesday night into Thursday before a broad upper trough pattern brings potentially unsettled weather into the weekend. There remain substantial differences in the models regarding timing of features late in the week. We expect an increase in rain chances beginning as early as Thursday afternoon but more likely Friday into Sunday. Aviation 06z Monday through Friday The main forecast issue is the potential for fog and stratus development through sunrise. At kchs, current thinking is that mainly shallow ground fog will occur with no flight restrictions. At ksav, current thinking is that fog and stratus will close enough to warrant carrying a tempo group for ifr conditions. PrevailingVFR will return by 13z and remain through the day. Could see some shower activity late in the period, but will hold off introducing anything with this forecast. Extended aviation outlook: flight restrictions possible Monday night as a warm front lifts north through the area. CIGS could lower to MVFR ifr at times with increasing chances for showers. It should becomeVFR on Tuesday with brief restrictions possible in convection rains along a cold front.VFR expected mid week with chances for increasing lower clouds and showers late week. Marine Tonight: west northwest winds will back to the north northeast overnight as high pressure prevails in the wake of nestor. Winds will remain 10 kt or less with seas subsiding to 1-3 ft through the night. Monday through Friday: high pressure weakening to the northeast will result in a light onshore flow Monday. The flow will veer to southwest by early Tuesday as a warm front lifts north through the waters. The surging will mainly be 15 kt or less. A cold front will move into the waters late Tuesday with much stronger surging Tuesday night in cold air advection. We think sca conditions are likely over ga waters beyond 20 nm with the best jetting occurring beyond 20 nm in northwest flow. There could be some gusts to 25 kt within 20 nm, but scas are less likely there. Winds will decrease during mid week as high pressure builds north of the waters. The decreasing trend will be short as onshore winds increase again by Thursday. Seas for much of the week will be in the 2-4 ft range, highest offshore with a period of higher seas likely near the gulf stream Tuesday night and early Wednesday in gusty northwest flow. Chs watches warnings advisories Ga... None. Sc... None. Marine... None. Near term... Bsh short term... long term... Jrl aviation... Bsh 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 |
| ACXS1 - ACE Basin Reserve, SC | 17 mi | 104 min | Calm | 62°F | 1016 hPa | 62°F | ||
| 41033 | 18 mi | 81 min | WNW 7.8 G 12 | 69°F | 74°F | 1016.5 hPa | ||
| FPKG1 - 8670870 - Fort Pulaski, GA | 28 mi | 59 min | NNW 4.1 G 5.1 | 67°F | 74°F | 1015.7 hPa | ||
| FBIS1 - Folly Island, SC | 47 mi | 89 min | W 1.9 G 4.1 | 65°F | 1016.2 hPa (+0.6) | 64°F | ||
| CHTS1 | 48 mi | 59 min | N 1 G 1.9 | 66°F | 73°F | 1015.7 hPa |
Wind History for Fort Pulaski, GA
(wind in knots) EDIT (on/off) Help| 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 | 3 AM | |
| Last 24hr | SW G16 | SW G17 | W G22 | W G15 | W G18 | W G26 | W | W G21 | W | NW | NW G22 | W G17 | NW | NW | NW | W G9 | W | W | W | W | NW | NW | NW | NW |
| 1 day ago | SE G19 | SE G18 | SE G12 | SE G17 | SE G21 | SE G18 | SE G19 | SE G15 | SE G17 | SE G17 | SE G21 | SE G19 | SE G24 | SE G24 | SE G23 | SE G24 | S G24 | SE G17 | SE G17 | S G18 | S G17 | S G26 | SW G22 | SW G17 |
| 2 days ago | N | NE | NE G10 | NE G19 | NE G18 | NE G19 | NE G16 | NE G17 | NE G19 | NE G17 | NE G17 | NE G17 | NE G16 | E G14 | E | E G19 | E | E | E G23 | E | E G22 | E G25 | E G23 |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Beaufort County Airport, SC | 4 mi | 34 min | N 0 | 7.00 mi | Fair | 61°F | 60°F | 100% | 1015.2 hPa |
| Hilton Head Island, Hilton Head Airport, SC | 13 mi | 34 min | N 0 | 10.00 mi | Fair | 61°F | 60°F | 100% | 1015.6 hPa |
Link to 5 minute data for KARW
Wind History from ARW (wind in knots)
| 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 PM | 1 AM | 2 AM | 3 AM | |
| Last 24hr | SW G19 | SW G16 | W G25 | SW G21 | W G19 | W G22 | W G18 | W | W G20 | NW G19 | W G19 | NW G15 | W | NW | NW | W | W | Calm | SW | W | SW | Calm | Calm | Calm |
| 1 day ago | E | E | E | E | E | E | E | E G16 | E | NE | NE | SE G15 | SE G22 | SE G20 | SE G22 | SE G20 | SE G21 | SE G17 | SE G16 | SE G20 | S G30 | S G23 | SW G20 | S G19 |
| 2 days ago | Calm | Calm | N | NE | NE G18 | NE | NE | NE | NE | E | NE | NE | E | E | E | E | E | E | NE | E | NE | NE | NE | E |
Tide / Current Tables for Battery Creek, 4 mi. above entrance, Beaufort River, South Carolina
EDIT Weekend mode (on/off) (on/off) Help One Week of DataBattery Creek
Click for Map
Mon -- 12:05 AM EDT Moonrise
Mon -- 03:04 AM EDT 7.31 feet High Tide
Mon -- 07:31 AM EDT Sunrise
Mon -- 08:41 AM EDT Last Quarter
Mon -- 08:44 AM EDT 0.95 feet Low Tide
Mon -- 02:35 PM EDT Moonset
Mon -- 03:32 PM EDT 8.66 feet High Tide
Mon -- 06:43 PM EDT Sunset
Mon -- 09:31 PM EDT 1.21 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 12:05 AM EDT Moonrise
Mon -- 03:04 AM EDT 7.31 feet High Tide
Mon -- 07:31 AM EDT Sunrise
Mon -- 08:41 AM EDT Last Quarter
Mon -- 08:44 AM EDT 0.95 feet Low Tide
Mon -- 02:35 PM EDT Moonset
Mon -- 03:32 PM EDT 8.66 feet High Tide
Mon -- 06:43 PM EDT Sunset
Mon -- 09:31 PM EDT 1.21 feet Low 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 | 6.2 | 7 | 7.3 | 6.9 | 5.7 | 4.1 | 2.4 | 1.3 | 1 | 1.6 | 3 | 4.8 | 6.5 | 7.8 | 8.5 | 8.5 | 7.6 | 5.9 | 4 | 2.4 | 1.4 | 1.3 | 2 |
Tide / Current Tables for Capers Creek, Cowen Creek, St. Helena Island, Beaufort River, South Carolina
EDIT (on/off) Help One Week of DataCapers Creek
Click for Map
Mon -- 12:04 AM EDT Moonrise
Mon -- 02:52 AM EDT 7.05 feet High Tide
Mon -- 07:30 AM EDT Sunrise
Mon -- 08:41 AM EDT Last Quarter
Mon -- 08:42 AM EDT 0.99 feet Low Tide
Mon -- 02:35 PM EDT Moonset
Mon -- 03:20 PM EDT 8.35 feet High Tide
Mon -- 06:43 PM EDT Sunset
Mon -- 09:29 PM EDT 1.26 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Mon -- 12:04 AM EDT Moonrise
Mon -- 02:52 AM EDT 7.05 feet High Tide
Mon -- 07:30 AM EDT Sunrise
Mon -- 08:41 AM EDT Last Quarter
Mon -- 08:42 AM EDT 0.99 feet Low Tide
Mon -- 02:35 PM EDT Moonset
Mon -- 03:20 PM EDT 8.35 feet High Tide
Mon -- 06:43 PM EDT Sunset
Mon -- 09:29 PM EDT 1.26 feet Low 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 | 6.1 | 6.8 | 7 | 6.5 | 5.4 | 3.8 | 2.3 | 1.2 | 1 | 1.7 | 3.1 | 4.9 | 6.5 | 7.7 | 8.3 | 8.1 | 7.1 | 5.5 | 3.8 | 2.3 | 1.4 | 1.4 | 2.1 |
Weather Map
(on/off) Help Weather Map
GEOS 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 (3,6,7,8)
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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. |