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Marine Weather and Tides
Version 3.4 |
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive. 5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds. |
| Sunrise 5:59AM | Sunset 8:28PM | Thursday June 22, 2017 7:59 PM EDT (23:59 UTC) | Moonrise 3:45AM | Moonset 5:55PM | Illumination 2% |  |
Marine Forecasts
EDIT (on/off) Help| AMZ250 Coastal Waters From Surf City To Cape Fear Nc Out 20 Nm- 709 Pm Edt Thu Jun 22 2017 .small craft advisory in effect from late Friday night through late Saturday night... Overnight..SW winds 10 to 15 kt. Seas 3 ft. A slight chance of showers and tstms. Fri..SW winds 10 to 15 kt with gusts up to 25 kt. Seas 3 to 4 ft. A slight chance of showers. Fri night..SW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 5 ft...building to 4 to 6 ft after midnight. Sat..SW winds 20 to 25 kt. Seas 4 to 6 ft. A chance of showers and tstms. Sat night..SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft...subsiding to 3 to 5 ft after midnight. Showers and tstms likely. Sun..SW winds 10 kt. Seas 2 to 4 ft...then 3 ft in the afternoon. A chance of showers and tstms. Sun night..SW winds 10 kt. Seas 2 to 3 ft. A chance of showers and tstms. Mon..W winds 10 kt. Seas 2 ft. A chance of showers and tstms. Tue..N winds 10 kt. Seas 2 ft. A chance of showers and tstms through the day. Winds and seas higher in and near tstms. | AMZ200 709 Pm Edt Thu Jun 22 2017 Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Bermuda high pressure will build westward across the area waters into the upcoming weekend. A cold front will move into or near the waters on Sunday, lingering through Monday before moving well offshore on Tuesday. |
7 Day Forecast for Marine Location Near Castle Hayne, NC
Hourly EDIT Helplocation: 34.35, -77.93 debug
Area Discussion for - Wilmington, NC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kilm 222329 afdilm area forecast discussion national weather service wilmington nc 729 pm edt Thu jun 22 2017 Synopsis Bermuda high pressure will build westward over the eastern carolinas through today as tropical storm cindy moves up from the western gulf coast. The remnants of tropical storm cindy should reach the southern appalachians Friday night with its associated moisture increasing the risk for showers and thunderstorms through Saturday. A cold front will reach the area but may remain stalled in close proximity Sunday and Monday. Dry high pressure will build in through the middle of next week. Near term through Friday As of 730 pm Thursday... Only subtle changes to the forecast this evening with some very near term tweaks to cloud cover and temperature trends. Most guidance has showers ending almost completely over the next few hours and even though we aren't carrying much I resisted removing pops completely as any outflow or residual boundary could trigger some activity. No other changes. Previous discussion follows: plenty of tropically-sourced moisture in the column now with soundings showing p W values in the 2 inch range. This will change in the early morning hours of Friday as dryer air at the mid-levels moves in. High-res guidance handling present convection well with a focus along the coast and secondary activity well inland. Have relied on this guidance for the very near term, with pops dropping to slight chance overnight and only isolated convection for Friday. Temperatures will remain very seasonally-correct and do expect warmer readings on Friday as we will see more breaks on the cloud cover. We will be seeing the beginnings of a pattern shift during the near term, with the bermuda ridge pushing east as the upper h 5 ridge breaks down as a broad upper trough descends upon eastern conus. Short term Friday night through Saturday night As of 3 pm Thursday... The upper ridging extending across the southeast states, including the ilm cwa, will peak Fri evening. This will help keep the remnants of cindy west and north of the fa Friday night with models taking it off the DELMARVA coast during Saturday morning. The flow aloft will suppress the upper ridging during Saturday with models indicating the upper longwave trof expanding southward as a result of weak mid-level s W trofs vorts rotating thru it. The wavelength of this upper trof is quite extensive, affecting a good chunk of u.S. Real estate by and during this upcoming weekend. At the sfc, the remnants of cindy will hook up with a cold front Fri night. The cold front is progged to be oriented NE to sw across the western carolinas early Saturday and will slowly sink toward the southeast Saturday and likely across portions of the fa Sat night. Any leftover diurnally induced convection fri evening should become pop-less Fri night into early sat. Convection will fire up by mid to late Sat morning inland and extend to and off the carolina coasts during Sat and Sat night. Will have forcing from the front, pinned sea breeze, differential heating and very weak but effective perturbations in the mid-level flow. Pops will be ramped up to good chance just shy of likely, for Sat aftn and night. The sfc pg will remain tightened thruout this period except come Sat night when the cold front itself will be nearly overhead. As for winds, expecting ssw-sw 10 to 15 mph, except up to 20 mph at the coast, winds will become sw-wsw 10-20 mph during Sat then finally decrease Sat night as the sfc pg relaxes. Long term Sunday through Thursday As of 3 pm Thursday... Cold front will be stalled along the coast Sunday and Monday before being pushed offshore and out of the area during Tuesday. The stalled boundary combined with deep SW flow aloft and residual moisture from the departing remnants of TS cindy will create a good chance for showers and thunderstorms the first half of the extended. The GFS has been consistent with widespread activity Sunday and Monday, and now the latest ecm cmc have trended in that direction as well. Pwats climb towards 2.25 inches Sunday before slowly falling Monday, so the highest pop will be Sunday, but an unsettled period is expected until a secondary front beneath an anomalously deep trough clears everything out on Tuesday. This secondary front will usher in much cooler air for the remainder of the period. 850mb temps crash towards +10c, near the bottom 10th |
percentile for late june, and highs will likely remain at least 5 degrees below climo Tue Wed with dewpoints potentially falling into the 50s! This will feel quite refreshing, especially after the high humidity of Sunday. By Thursday the surface high shifts offshore and height rises begin again, so temps and humidity will increase, but remain below seasonable norms into late week. Aviation 23z Thursday through Tuesday As of 00z... Expect mostlyVFR through the period. I did add some MVFR ceilings to most sites a couple hours either side of 12z based on guidance and persistence. Lbt and flo had some ifr ceilings this morning and wouldn't be surprised to see them dip down again although I didn't quite have the confidence at this point. The next issuance may want to consider adding based on trends. Extended outlook... MVFR ceilings vsbys Saturday as tropical moisture associated with cindy remnants traverse the region. Patchy fog and low ceilings possible 08z-13z Friday. More MVFR ifr conditions possible in shra tsra with passage of cold front late Saturday into early Sunday. Marine Near term through Friday ... as of 730 pm Thursday... No changes to the coastal waters forecast with the evening update. Previous discussion follows: persistent S to swly winds will persist over the waters around the back-side of the bermuda high through the near term. Main change will be a gradual tightening of the gradient with winds increasing from present 5 to 10 kt range to 10 to 15 kts tonight and 15 to 20 kts by Friday afternoon. Seas will likewise increase, from around 2 ft this afternoon to 2 to 3 ft tonight and up to 4 ft on Friday. Winds and seas will be higher in the vicinity of thunderstorms this afternoon. Short term Friday night through Saturday night ... as of 3 pm Thursday... SCA conditions Fri night thru Saturday. Dropping back to scec conditions during Sat night. Bermuda high pressure centered off the southeast u.S. Coast will lose a portion of its grip across the local waters this period. This in response to a sfc cold front dropping southeast and becoming oriented ne-sw just inland from the atl waters by late Sat night. At the start of this period, a well tightened sfc pg will exist across the local waters, which will continue thru Fri night and daytime sat. During Sat night, models finally and slowly relax the pg across the area waters. Wind directions will basically run from the ssw-sw Fri night and sw-wsw sat into Sat night. Significant seas will be elevated thruout this period, peaking Fri night thru early Sat evening. Locally produced wind driven waves at 3 to 5 second periods will dominate this period. The sw-wsw winds will result in a limited fetch for the seas to develop off of. Scattered to widespread convection Sat afternoon and night will pose the usual hazards to mariners. Long term Sunday through Tuesday ... as of 3 pm Thursday... Cold front will stall along the coast and waver in the vicinity Sunday and Monday before a secondary front pushes everything out the sea and clears the waters on Tuesday. Winds will fluctuate between S and W Sunday Monday, but the weak gradient immediately near the front will keep winds at 10 kts or less regardless of direction. As the second front kicks everything off to the east on Tuesday, winds will northerly, with speeds around 10 kts. A 2 ft 8sec SE swell will exist in the spectrum each day, and thanks to light winds sun Mon will likely be the predominant wave group despite a present S SW wind-wave. Seas will be 3-4 ft very early Sunday before falling to 2-3 ft most of Sun mon, and then fall further to 1-2 ft Tuesday as the winds turn offshore. Ilm watches warnings advisories Sc... None. Nc... None. Marine... Small craft advisory from midnight Friday night to 6 am edt Sunday for amz250-252-254-256. Synopsis... Rek near term... Rek shk short term... Dch long term... Jdw aviation... Shk |
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 |
| WLON7 | 9 mi | 41 min | 79°F | 82°F | 1018.1 hPa | |||
| JMPN7 - 8658163 - Johnny Mercer Pier, Wrightsville Beach, NC | 12 mi | 41 min | SSW 4.1 G 4.1 | 79°F | 79°F | 1017.5 hPa | ||
| NOXN7 - North Carolina Reserve, NC | 14 mi | 74 min | Calm | 80°F | 1019 hPa | 77°F | ||
| 41110 - Masonboro Inlet, NC | 18 mi | 60 min | 80°F | 3 ft | ||||
| 41038 - ILM2 - 5 miles SE of Wrightsville Beach, NC | 18 mi | 51 min | Calm G 3.9 | 79°F | 79°F | 1018 hPa | ||
| 41037 - ILM3 - 27 miles SE of Wrightsville Beach, NC | 39 mi | 51 min | WSW 7.8 G 9.7 | 79°F | 80°F | 1018.2 hPa | ||
| SSBN7 | 46 mi | 119 min | 2 ft | |||||
| 41024 - Sunset Nearshore (SUN 2) | 46 mi | 51 min | SW 5.8 G 9.7 | 80°F | 81°F | 1018.1 hPa |
Wind History for Wrightsville Beach, NC
(wind in knots) EDIT (on/off) Help| 8 PM | 9 PM | 10 PM | 11 PM | 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 | |
| Last 24hr | S | S | SW | SW | SW | SW | SW | SW | SW | SW | SW | W | SW | S | W | SW G10 | W | S | SW G16 | S | S | W | NW | SW |
| 1 day ago | W | N | W | W | W | S | S | W | SW G10 | NW | NW | NW | NW G11 | NW | NW G11 | NW G13 | NW G9 | NW | NW | SE | SE | S | S | S |
| 2 days ago | S | SW G21 | SW | SW | SW | SW | SW G17 | SW G20 | SW G18 | SW | SW | SW | S | SW | SW G15 | S G19 | S G22 | S | W | N | NE | W | W | W |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| Wilmington International Airport, NC | 5 mi | 66 min | S 4 | 10.00 mi | Fair | 79°F | 77°F | 94% | 1018.2 hPa |
Wind History from ILM (wind in knots)
| 8 PM | 9 PM | 10 PM | 11 PM | 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 | |
| Last 24hr | S | S | Calm | Calm | SW | SW | SW | SW | SW | SW | Calm | Calm | SW | SW | W | SW | W | NW | W | SW | SW | W | Calm | S |
| 1 day ago | W | Calm | Calm | Calm | SW | Calm | Calm | Calm | W | Calm | Calm | NW | Calm | NW | NW | NW | N | Calm | S | S | S | SE | SE | S |
| 2 days ago | S G21 | S | S | SW | S | SW | SW | SW | SW | SW | SW | SW | SW G18 | SW | SW | SW | S G20 | S G19 | W | NW | W | W | W | W |
Tide / Current Tables for Castle Hayne, Northeast River, North Carolina
EDIT RT Ports Option Weekend mode (on/off) (on/off) Help One Week of Data| Castle Hayne Click for Map Thu -- 04:44 AM EDT Moonrise Thu -- 06:00 AM EDT Sunrise Thu -- 06:24 AM EDT -0.07 feet Low Tide Thu -- 11:23 AM EDT 1.80 feet High Tide Thu -- 06:27 PM EDT -0.22 feet Low Tide Thu -- 06:54 PM EDT Moonset Thu -- 08:27 PM EDT Sunset Thu -- 11:52 PM EDT 2.19 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 2 | 1.7 | 1.3 | 1 | 0.6 | 0.3 | -0 | 0 | 0.5 | 1.1 | 1.6 | 1.8 | 1.8 | 1.5 | 1.1 | 0.7 | 0.4 | 0.1 | -0.2 | -0.2 | 0.3 | 1.1 | 1.7 | 2.1 |
Tide / Current Tables for Wilmington, North Carolina
EDIT (on/off) Help One Week of Data| Wilmington Click for Map Thu -- 03:16 AM EDT -0.09 feet Low Tide Thu -- 04:44 AM EDT Moonrise Thu -- 06:00 AM EDT Sunrise Thu -- 08:32 AM EDT 4.29 feet High Tide Thu -- 03:18 PM EDT -0.44 feet Low Tide Thu -- 06:54 PM EDT Moonset Thu -- 08:27 PM EDT Sunset Thu -- 09:07 PM EDT 5.22 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
| 12am | 1am | 2am | 3am | 4am | 5am | 6am | 7am | 8am | 9am | 10am | 11am | 12pm | 1pm | 2pm | 3pm | 4pm | 5pm | 6pm | 7pm | 8pm | 9pm | 10pm | 11pm |
| 2.3 | 1.4 | 0.5 | -0.1 | 0.2 | 1.4 | 2.8 | 3.8 | 4.2 | 4.2 | 3.7 | 2.7 | 1.7 | 0.8 | 0.1 | -0.4 | -0.2 | 1 | 2.8 | 4.2 | 4.9 | 5.2 | 5 | 4.3 |
Weather Map and Satellite Images
(on/off) HelpWeather Map | IR Satellite Image from GEOS GOES Local Image of Mid-Atlantic EDIT  |
Wind Forecast for Wilmington, NC (19,4,5,8)
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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. |