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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 6:16AM | Sunset 8:27PM | Wednesday July 17, 2019 6:19 AM EDT (10:19 UTC) | Moonrise 8:13PM | Moonset 5:47AM | Illumination 100% |  |
AMZ254 Coastal Waters From Little River Inlet To Murrells Inlet Sc Out 20 Nm- 309 Am Edt Wed Jul 17 2019
Today..SW winds 10 kt, becoming S 10 to 15 kt this afternoon. Seas 2 to 3 ft.
Tonight..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Thu..SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. A slight chance of showers and tstms.
Thu night..SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 4 ft. A chance of showers and tstms.
Fri..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Sat..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Sun..SW winds 10 to 15 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms.
Today..SW winds 10 kt, becoming S 10 to 15 kt this afternoon. Seas 2 to 3 ft.
Tonight..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Thu..SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. A slight chance of showers and tstms.
Thu night..SW winds 15 to 20 kt, diminishing to 10 to 15 kt after midnight. Seas 3 to 4 ft. A chance of showers and tstms.
Fri..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Sat..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Sun..SW winds 10 to 15 kt. Seas 3 to 4 ft. Winds and seas higher in and near tstms.
AMZ200 309 Am Edt Wed Jul 17 2019
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Weak high pressure offshore and weak troughing across the central carolinas will result in light S to sw winds and benign seas today. For late tonight into Saturday, a boundary will slowly approach the waters from the mainland resulting in an increase in winds and seas respectively.
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Weak high pressure offshore and weak troughing across the central carolinas will result in light S to sw winds and benign seas today. For late tonight into Saturday, a boundary will slowly approach the waters from the mainland resulting in an increase in winds and seas respectively.
7 Day Forecast for Marine Location Near Calabash, NC
Hourly EDIT Helplocation: 33.86, -78.57 debug
Area Discussion for - Wilmington, NC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kilm 170626 afdilm area forecast discussion national weather service wilmington nc 226 am edt Wed jul 17 2019 Synopsis Heat and humidity will continue into early next week as ridging from high pressure anchored well offshore from the southeast u.S. Coast, extends inland across florida. Showers and thunderstorms will be isolated at first but they will become more widespread next week. A cold front will arrive and break the heat Tuesday or Wednesday. Near term through Thursday As of 300 am Wednesday... Main concern for the next 36 hours is afternoon high heat indices that could result in heat illnesses. Building high pressure aloft and southerly wind flow at ground level will allow afternoon temperatures to rise into the mid to upper 90s inland, with values closer to the coast in the upper 80s to lower 90s. Regardless of how high afternoon temperatures actually reach, the combination with dew points in the mid to upper 70s will result in afternoon heat indices up to 106+ for many locations. Heat illnesses are possible for those spending time outdoors during the hours of 12 pm to 7 pm this evening. Afternoon instability remains across the area today with plenty of afternoon heating, which will likely lead to another round of isolated showers and thunderstorms during the peak afternoon heating. Latest short term high resolution guidance also hints at precipitation development, but with lack of upper level wind, storms are not expected to be severe. Heat and chances for afternoon showers and thunderstorms continue to be the headlines in the forecast for Thursday. Short term Thursday night through Friday night As of 300 am Wednesday... Mid level ridging will be broad and expansive through the period across a good part of the country. It will not be strong enough to cap all convection however and there may even be some weak shortwave energy that drops in from the northwest. The seabreeze shouldn't progress too far inland but will serve as a convective initiation mechanism as will the well defined inland piedmont trough. Pops will thus be fairly uniform across the area and as usual will have a diurnal afternoon maximum (though there may be enough shortwave energy Thursday night for a less than normal diurnal decrease in storms, at least compared to Friday night). Temperatures will be elevated a few degrees above climatology but high dewpoints will once again offer up advisory- worthy heat indices. Long term Saturday through Tuesday As of 300 am Wednesday... Mid level ridge surface piedmont trough will be in place over the weekend, though the former weakens on Sunday. Interestingly guidance is not suggesting any increase in qpf on Sunday. The inherited forecast didn't either and so no tweaks to |
pops have been made. Afternoon heat advisories seem likely once again both days. Monday and Tuesday will bring about a gradual pattern change as a trough tries to get established in the eastern us. Thunderstorm coverage should increase on Monday as the suppressing effects of the mid level ridge wanes but temperatures will remain hot enough that yet another heat advisory appears likely. Even higher rain chances slated for Tuesday as cold front approaches while increased cloud cover should finally preclude a heat advisory. Aviation 06z Wednesday through Sunday As of 06z...VFR for area terminals for the next 24 hours. Showers and thunderstorms expected to develop in the afternoon hours in the vicinity of airports with moderate confidence in development, but low confidence on actual locations of afternoon storms. Extended outlook...VFR conditions are expected outside any isolated to widely scattered convection the first part of the upcoming week. Marine Light southerly winds with afternoon gusts up to 20-25 kts as sea breeze circulation develops for the next 36 hours. Wave heights between 2 to 4 feet expected out of the southwest around 4 to 6 seconds with swell from the southeast around 10 seconds. Winds will remain out of the southwest Thursday night through Friday night as high pressure remains well offshore. A well defined piedmont trough will bolster wind speeds by about a category, which should maintain the offshore 4 ft wave. The mainly wind driven seas will coexist with a 2 ft 9 second southeasterly swell. Previous forecasts had very slightly weaker winds Saturday and Sunday but now this is less certain. The trough may maintain its strength and so winds may as well. Have trended the forecast accordingly. Weekend seas will remain similar to those during the week. Ilm watches warnings advisories Sc... Heat advisory from 11 am this morning to 7 pm edt this evening for scz017-023-024-032-033-039-054>056-058-059. Beach hazards statement from 6 am edt this morning through this evening for scz054-056. Nc... Heat advisory from 11 am this morning to 7 pm edt this evening for ncz087-096-099-105>110. Beach hazards statement from 6 am edt this morning through this evening for ncz106-108. Marine... None. Near term... Mck short term... mbb long term... mbb aviation... Mck |
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 |
| 41024 - Sunset Nearshore (SUN 2) | 5 mi | 72 min | SW 12 G 16 | 83°F | 85°F | 1018.4 hPa | ||
| 41119 | 5 mi | 30 min | 85°F | 2 ft | ||||
| MROS1 - 8661070 - Springmaid Pier, SC | 23 mi | 50 min | 81°F | |||||
| 41108 | 31 mi | 50 min | 84°F | 2 ft | ||||
| WLON7 | 41 mi | 56 min | 81°F | 86°F | 1018.6 hPa | |||
| JMPN7 - 8658163 - Johnny Mercer Pier, Wrightsville Beach, NC | 48 mi | 50 min | SSE 2.9 G 4.1 | 80°F | 79°F | 1018.2 hPa | ||
| NIWS1 - North Inlet-Winyah Bay Reserve, SC | 48 mi | 95 min | Calm | 80°F | 1018 hPa | 80°F | ||
| 41038 - ILM2 - 5 miles SE of Wrightsville Beach, NC | 49 mi | 72 min | SW 7.8 G 9.7 | 81°F | 82°F | 1018.4 hPa | ||
| 41110 - Masonboro Inlet, NC | 49 mi | 40 min | 82°F | 2 ft |
Wind History for Springmaid Pier, SC
(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| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| North Myrtle Beach Grand Strand Airport, SC | 9 mi | 27 min | SW 4 | 10.00 mi | Fair | 80°F | 79°F | 97% | 1018.5 hPa |
| Myrtle Beach Air Force Base, SC | 22 mi | 24 min | SW 3 | 10.00 mi | Fair | 80°F | 78°F | 94% | 1018.7 hPa |
Wind History from CRE (wind in knots)
| 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 | 6 AM | |
| Last 24hr | Calm | W | SW | S | S | S | S | S | S | S | S | S | SW | S | S | S | S | S | S | SW | SW | SW | SW | SW |
| 1 day ago | N | N | N | N | S | S | S | S | S | S | S | S | SW | SW | SW | SW | Calm | Calm | Calm | Calm | Calm | Calm | Calm | SW |
| 2 days ago | W | W | W | NW | NW | W | SW | S | S | S | S | SW | SW | SW | W | W | W | Calm | W | W | Calm | W | Calm | NW |
Tide / Current Tables for Dunn Sound, Little River Inlet, South Carolina
EDIT Weekend mode (on/off) (on/off) Help One Week of DataDunn Sound
Click for Map
Wed -- 03:22 AM EDT 0.16 feet Low Tide
Wed -- 06:15 AM EDT Sunrise
Wed -- 06:46 AM EDT Moonset
Wed -- 08:54 AM EDT 4.25 feet High Tide
Wed -- 03:21 PM EDT 0.04 feet Low Tide
Wed -- 08:24 PM EDT Sunset
Wed -- 09:12 PM EDT Moonrise
Wed -- 09:25 PM EDT 5.27 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Wed -- 03:22 AM EDT 0.16 feet Low Tide
Wed -- 06:15 AM EDT Sunrise
Wed -- 06:46 AM EDT Moonset
Wed -- 08:54 AM EDT 4.25 feet High Tide
Wed -- 03:21 PM EDT 0.04 feet Low Tide
Wed -- 08:24 PM EDT Sunset
Wed -- 09:12 PM EDT Moonrise
Wed -- 09:25 PM EDT 5.27 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 |
| 3 | 1.8 | 0.8 | 0.2 | 0.3 | 1.2 | 2.3 | 3.3 | 4 | 4.2 | 4 | 3.3 | 2.4 | 1.4 | 0.6 | 0.1 | 0.2 | 1.1 | 2.4 | 3.7 | 4.6 | 5.2 | 5.2 | 4.6 |
Tide / Current Tables for Myrtle Beach Airport, South Carolina
EDIT (on/off) Help One Week of DataTide / Current data from XTide NOT FOR NAVIGATION
Weather Map and Satellite Images
(on/off) HelpWeather Map
GOES Local Image of Mid-Atlantic 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 Wilmington, NC (6,6,7,8)
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Ground Weather Radar Station Wilmington, NC
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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. |