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Marine Weather and Tides
Version 3.4 |
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 6:55AM | Sunset 8:01PM | Friday August 23, 2019 4:35 PM EDT (20:35 UTC) | Moonrise 11:57PM | Moonset 1:03PM | Illumination 42% |  |
AMZ450 Coastal Waters From Altamaha Sound To Fernandina Beach Fl Out 20 Nm- Coastal Waters From Fernandina Beach To St. Augustine Fl Out 20 Nm- Coastal Waters From St. Augustine To Flagler Beach Fl Out 20 Nm- 410 Pm Edt Fri Aug 23 2019
Tonight..East southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 5 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Saturday..East winds 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Saturday night..East southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Sunday..Northeast winds 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Sunday night..North winds 15 knots. Seas 3 to 4 feet. Dominant period 8 seconds. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Monday..North winds 15 knots, becoming east northeast in the afternoon. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a moderate chop. Showers and Thunderstorms likely.
Monday night..South winds around 5 knots, becoming southwest after midnight. Seas 2 to 3 feet. A chance of showers and a slight chance of Thunderstorms.
Tuesday..South southwest winds around 5 knots, becoming southeast 10 knots in the afternoon. Seas 2 to 3 feet. Showers and Thunderstorms likely.
Tuesday night..Southwest winds 5 to 10 knots, becoming west after midnight. Seas 2 to 3 feet. A chance of showers and a slight chance of Thunderstorms.
Wednesday..Southwest winds 5 to 10 knots, becoming southeast 10 knots in the afternoon. Seas 2 to 3 feet. Showers and Thunderstorms likely.
Tonight..East southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 5 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Saturday..East winds 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Saturday night..East southeast winds 10 to 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a light chop. A chance of showers and a slight chance of Thunderstorms.
Sunday..Northeast winds 15 knots. Seas 2 to 4 feet. Dominant period 6 seconds. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Sunday night..North winds 15 knots. Seas 3 to 4 feet. Dominant period 8 seconds. Inland waters a moderate chop. A chance of showers and a slight chance of Thunderstorms.
Monday..North winds 15 knots, becoming east northeast in the afternoon. Seas 2 to 4 feet. Dominant period 7 seconds. Inland waters a moderate chop. Showers and Thunderstorms likely.
Monday night..South winds around 5 knots, becoming southwest after midnight. Seas 2 to 3 feet. A chance of showers and a slight chance of Thunderstorms.
Tuesday..South southwest winds around 5 knots, becoming southeast 10 knots in the afternoon. Seas 2 to 3 feet. Showers and Thunderstorms likely.
Tuesday night..Southwest winds 5 to 10 knots, becoming west after midnight. Seas 2 to 3 feet. A chance of showers and a slight chance of Thunderstorms.
Wednesday..Southwest winds 5 to 10 knots, becoming southeast 10 knots in the afternoon. Seas 2 to 3 feet. Showers and Thunderstorms likely.
AMZ400 Synopsis For Altamaha Sound Ga To Flagler Beach Fl Out To 60 Nm- 410 Pm Edt Fri Aug 23 2019
Synopsis.. An organizing tropical low pressure center along the southeast florida coast will pivot northeastward by late Saturday and will then accelerate northeastward along the gulf stream waters on Sunday as the system strengthens. Easterly winds will strengthen on Saturday and will shift to northeasterly on Sunday and then northerly by Sunday night as this developing cyclone moves east of our offshore waters. Meanwhile, strengthening high pressure over new england will drive a cold front southward over the georgia waters by Sunday morning, with this boundary then stalling near the florida border by late Sunday and Monday. Atlantic ridging will then build over the florida peninsula early next week, resulting in light prevailing southwest winds beginning on Monday night.
Gulf stream.. The approximate location of the west wall of the gulf stream as of aug 22, 2019 at 1200 utc... 61 nautical miles east southeast of flagler beach. 72 nautical miles east of saint augustine beach. 84 nautical miles east of jacksonville beach. 92 nautical miles east of st simons island. This data courtesy of the naval oceanographic office.
Synopsis.. An organizing tropical low pressure center along the southeast florida coast will pivot northeastward by late Saturday and will then accelerate northeastward along the gulf stream waters on Sunday as the system strengthens. Easterly winds will strengthen on Saturday and will shift to northeasterly on Sunday and then northerly by Sunday night as this developing cyclone moves east of our offshore waters. Meanwhile, strengthening high pressure over new england will drive a cold front southward over the georgia waters by Sunday morning, with this boundary then stalling near the florida border by late Sunday and Monday. Atlantic ridging will then build over the florida peninsula early next week, resulting in light prevailing southwest winds beginning on Monday night.
Gulf stream.. The approximate location of the west wall of the gulf stream as of aug 22, 2019 at 1200 utc... 61 nautical miles east southeast of flagler beach. 72 nautical miles east of saint augustine beach. 84 nautical miles east of jacksonville beach. 92 nautical miles east of st simons island. This data courtesy of the naval oceanographic office.
7 Day Forecast for Marine Location Near Darien, GA
Hourly EDIT Helplocation: 31.32, -81.36 debug
Area Discussion for - Charleston, SC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kchs 232018 afdchs area forecast discussion national weather service charleston sc 418 pm edt Fri aug 23 2019 Synopsis Atlantic high pressure will prevail this evening, before a cold front approaches from the north tonight. The front will cross through the area on Saturday, then stall offshore Sunday. Low pressure could pass well offshore during the first half of next week. Another cold front could impact the region late next week. Near term until 6 am Saturday morning Through sunset: radar shows lines of convection across our inland zones. This is in areas near where mlcapes are ~2,000 j kg with dcapes ~800 j kg. Hence, another marginally severe pulse storm with damaging wind gusts cannot be ruled out in these locations. Closer to the coast, the sea breeze moving inland is making convection much more isolated. Cams have the convection peaking in the next hour or so, then quickly decreasing in intensity coverage around sunset. Tonight: a cold front will approach from the north. Additionally, moisture will increase ahead of the front. We maintained slight chance pops far inland most of the night, then have them expanding into the charleston tri-county before daybreak. The remaining areas, especially in most of ga, should be dry. Lows will be in the 70s. Short term 6 am Saturday morning through Monday Saturday: a cold front associated with a large mid upper lvl trough of low pressure will approach from the northwest during the day. Ahead of the front, an onshore wind will advect deep moisture characterized by pwats between 2.00-2.25 inches across the region, helping set up a round of at least scattered to numerous showers and thunderstorms during the afternoon evening. Modest instability (sbcape 1500-1750 j kg) should limit the overall severe weather threat. However, an isolated strong or severe thunderstorm can not be ruled out during the afternoon into early evening. The greater concern will be localized heavy rainfall given deep moisture and weak wind fields in place as the front slowly shifts into the region. Activity should slowly weaken, but persist into overnight hours. High temps should range in the upper 80s to lower 90s, warmest away from the coast in southeast georgia. Overnight lows should range in the low 70s inland to mid upper 70s near the coast. Sunday and Monday: a cold front will slowly progress to the coast and likely stall along or just offshore Sunday, then slowly drift further south and east into Monday. As the occurs, a potential tropical cyclone will track north northeast well offshore. The position of the front and tropical entity offshore will play a fairly significant role in how much precip can be expected across southeast south carolina and southeast georgia early next week. Precip chances should be highest east of the i-95 corridor on Sunday where pwats remain between 2.00-2.25 inches near the slowly moving front shifting offshore. Enhanced precip chances could persist near the coast through Monday as tropical low pressure shifts past the area well offshore, but the overall threat of heavy rainfall should be more limited compared to Sunday given the expected position of the sfc front offshore and the area remaining well west of any tropical cyclone track. Severe weather potential is quite low Sunday and especially Monday given abundant clouds and little instability. Afternoon highs should be a few degrees below normal, ranging in the mid upper 80s. Overnight lows should range around 70 well inland to low mid 70s near the coast. |
Long term Monday night through Friday Models are in good agreement that low pressure will be lifting northeast away from the area Monday night into Tuesday. Another cold front could impact the region later in the period. There are some discrepancies in regards to convective coverage but with elevated moisture and shortwave energy, it looks to stay a bit unsettled. Temperatures are expected to be near normal. Aviation 20z Friday through Wednesday 18z tafs:VFR will prevail. Convection should remain inland of the TAF sites through this evening, so there is no mention in the tafs. Extended aviation outlook: periodic flight restrictions are possible Saturday Sunday due to showers thunderstorms associated with a slowly passing cold front. Brief flight restrictions are possible Monday and Tuesday behind a front stalled offshore. Marine Tonight: tranquil weather is expected with S to SE winds in the evening, becoming mainly S or SW by daybreak. Seas will be 1-3 ft. Saturday through Wednesday: a cold front will approach from the north northwest Saturday and stall across the coastal waters through early next week. Well south of the region, a tropical low should slowly strengthen while gaining latitude off eastern florida, remaining beyond all coastal waters while tracking north northeast well off the southeast coast. The setup will initially favor southeast winds across coastal waters Saturday at or below 10-15 kt, before turning predominately northeast and increasing to 15-20 kt Sunday and Monday as the pressure gradient tightens between the stalled front and passing tropical low offshore. Seas should also build up to 4-5 ft. Conditions could approach small craft advisory levels for a period on Monday before the tropical low departs north northeast of the region Tuesday. Conditions will then remain well below small craft advisory levels through midweek. Rip currents: increasing east northeast winds could contribute to an enhanced risk of rip currents on area beaches late this weekend into early next week, especially if tropical low pressure intensifies while tracking well offshore. Tides coastal flooding Astronomical tides will be running close to minor coastal flood advisory levels next week and onshore winds could lead to even higher tides, mainly during the evening high tide cycles starting Monday. In addition, there is the potential for some heavy rain around the times of high tide which could exacerbate any flooding issues. Chs watches warnings advisories Ga... None. Sc... None. Marine... None. Near term... short term... long term... Etm aviation... 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 |
| SAXG1 - Sapelo Island Reserve, GA | 8 mi | 95 min | ESE 8 | 90°F | 1016 hPa (-2.0) | 74°F | ||
| 41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA | 27 mi | 45 min | SE 5.8 G 7.8 | 84°F | 85°F | 2 ft | 1015.6 hPa (-1.9) | 76°F |
| 41112 - Offshore Fernandina Beach, FL (132) | 42 mi | 35 min | 85°F | 2 ft | ||||
| FRDF1 - 8720030 - Fernandina Beach, FL | 45 mi | 53 min | 94°F | 83°F | 1016.5 hPa |
Wind History for Fernandina Beach, FL
(wind in knots) EDIT (on/off) Help| Last 24hr | ||||||||||||||||||||||||
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| 2 days ago |
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 |
| Brunswick / Glynco, GA | 7 mi | 80 min | ESE 9 | 10.00 mi | Fair | 92°F | 73°F | 56% | 1015.9 hPa |
| Brunswick, Malcolm McKinnon Airport, GA | 12 mi | 2.7 hrs | ESE 10 | 10.00 mi | Fair | 90°F | 73°F | 58% | 1017.1 hPa |
Link to 5 minute data for KBQK
Wind History from BQK (wind in knots)
| 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | -12 PM | 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 | |
| Last 24hr | SE | SE | SE | SE | SE | SE | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SE | S | W | E | E | SE | SE | |||
| 1 day ago | SE | SE | SE | SE | S | Calm | Calm | Calm | Calm | SW | SW | SW | SE | S | S | SE | SE | |||||||
| 2 days ago | SE | E | SE | SE | SE | SE | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SW | SE | SE | S | SE | SE | SE |
Tide / Current Tables for Jones Creek entrance, Hampton River, Georgia
EDIT Weekend mode (on/off) (on/off) Help One Week of DataJones Creek entrance
Click for Map
Fri -- 12:16 AM EDT Moonrise
Fri -- 02:49 AM EDT 6.60 feet High Tide
Fri -- 06:55 AM EDT Sunrise
Fri -- 08:12 AM EDT 0.87 feet Low Tide
Fri -- 10:58 AM EDT Last Quarter
Fri -- 02:02 PM EDT Moonset
Fri -- 03:20 PM EDT 7.41 feet High Tide
Fri -- 07:59 PM EDT Sunset
Fri -- 08:49 PM EDT 1.59 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:16 AM EDT Moonrise
Fri -- 02:49 AM EDT 6.60 feet High Tide
Fri -- 06:55 AM EDT Sunrise
Fri -- 08:12 AM EDT 0.87 feet Low Tide
Fri -- 10:58 AM EDT Last Quarter
Fri -- 02:02 PM EDT Moonset
Fri -- 03:20 PM EDT 7.41 feet High Tide
Fri -- 07:59 PM EDT Sunset
Fri -- 08:49 PM EDT 1.59 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 | 5.9 | 6.4 | 6.6 | 6 | 4.7 | 3 | 1.6 | 0.9 | 1.1 | 1.9 | 3.2 | 4.7 | 6 | 6.9 | 7.4 | 7.2 | 6.1 | 4.5 | 3 | 1.9 | 1.6 | 2 | 2.8 |
Tide / Current Tables for Old Tower, Sapelo Island, Georgia
EDIT (on/off) Help One Week of DataOld Tower
Click for Map
Fri -- 12:16 AM EDT Moonrise
Fri -- 01:58 AM EDT 6.28 feet High Tide
Fri -- 06:55 AM EDT Sunrise
Fri -- 08:12 AM EDT 0.83 feet Low Tide
Fri -- 10:58 AM EDT Last Quarter
Fri -- 02:02 PM EDT Moonset
Fri -- 02:29 PM EDT 7.05 feet High Tide
Fri -- 07:59 PM EDT Sunset
Fri -- 08:49 PM EDT 1.51 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:16 AM EDT Moonrise
Fri -- 01:58 AM EDT 6.28 feet High Tide
Fri -- 06:55 AM EDT Sunrise
Fri -- 08:12 AM EDT 0.83 feet Low Tide
Fri -- 10:58 AM EDT Last Quarter
Fri -- 02:02 PM EDT Moonset
Fri -- 02:29 PM EDT 7.05 feet High Tide
Fri -- 07:59 PM EDT Sunset
Fri -- 08:49 PM EDT 1.51 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 |
| 5.3 | 6 | 6.3 | 6 | 5.1 | 3.8 | 2.4 | 1.4 | 0.8 | 1.1 | 2.1 | 3.6 | 5.1 | 6.3 | 7 | 7 | 6.3 | 5.1 | 3.7 | 2.5 | 1.7 | 1.5 | 2 | 3 |
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 (16,3,4,5)
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Ground Weather Radar Station Jacksonville, FL
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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. |