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Marine Weather and Tides
Version 3.4 |
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported. 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 7:23AM | Sunset 6:28PM | Monday October 23, 2017 2:10 AM EDT (06:10 UTC) | Moonrise 9:45AM | Moonset 8:20PM | Illumination 10% |  |
Marine Forecasts
EDIT (on/off) Help| AMZ250 Coastal Waters From Surf City To Cape Fear Nc Out 20 Nm- 930 Pm Edt Sun Oct 22 2017 .small craft advisory in effect from Monday afternoon through Tuesday afternoon... Overnight..SE winds 10 to 15 kt. Seas 3 to 4 ft. Mon..SE winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas building to 4 to 6 ft. A chance of showers and tstms. Mon night..S winds 20 to 25 kt with gusts up to 30 kt. Seas 5 to 7 ft, building to 6 to 8 ft after midnight. Showers with tstms likely. Tue..SW winds 15 to 20 kt with gusts up to 30 kt. Seas 6 to 8 ft, subsiding to 4 to 7 ft in the afternoon. Showers likely with isolated tstms. Tue night..W winds 10 to 15 kt, becoming nw 15 to 20 kt after midnight. Seas subsiding to 3 to 6 ft. A slight chance of showers. Wed..NW winds 15 to 20 kt, becoming W 10 to 15 kt in the afternoon. Seas 3 to 5 ft, subsiding to 2 to 4 ft in the afternoon. Wed night..W winds 10 to 15 kt with gusts up to 20 kt. Seas 3 ft, then 2 to 4 ft after midnight. Thu..NW winds 10 to 15 kt, diminishing to 10 kt. Seas 2 to 3 ft. Fri..SE winds 10 kt. Seas 2 ft. Winds and seas higher in and near tstms. | AMZ200 930 Pm Edt Sun Oct 22 2017 Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. An eastward moving strong cold front will approach from the west during Monday. The front will sweep across the area waters and offshore by late Monday night thru midday Tuesday. Cool, canadian high pressure will follow and affect the area waters during the mid to late week period. |
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 230525 afdilm area forecast discussion national weather service wilmington nc 125 am edt Mon oct 23 2017 Synopsis High pressure will retreat well offshore from the northeast states tonight and mon. At the same time, a cold front will approach from the west during mon, sweeping across the forecast area Mon night thru early tue. The front will bring showers and a few thunderstorms to the area, mainly from midday Monday through Tuesday morning with a few storms briefly reaching strong to possibly severe status. Cooler air will spread across the region late Tue through the mid to late week period as modified canadian high pressure ridges across the region. Near term through today As of 900 pm Sunday... Latest 88d mosaics illustrate isolated showers encroaching the southern portions of the ilm cwa, ie. Southern williamsburg and georgetown counties. Local sfc obs in this area shows no pcpn having occurred where the 88d detected possible rw-. Will indicate an isolated pop mainly later tonight as SE low level flow becomes more southerly, whereby the pcpn over the atlantic will have a better angle to move onshore and across portions of the fa. Some adjustments to cloudiness via latest Sat imagery trends applied overnight into Monday. Kept skies more optimistic, less clouds, over the NE portions of the ilm cwa, otherwise, expect an overall increase in opaque cloudiness. Have initialized sfc winds lower across the fa based on latest obs trends. Still expect a gradual increase in wind speeds and a slight veering of the directions due to a tightening of the sfc pg and due to the retreating sfc high backing further offshore from new england combined with the approach of a strong sfc cold front. Some tweaking to overnight mins to the hier side as a deeper onshore flow has pushed inland those hier temps and dewpoints. Previous... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... as of 230 pm Sunday... Satellite imagery shows moisture steadily increasing as low-level flow turns from the east to a southeast trajectory. Mid-levels will remain dry initially thus inhibiting any significant rain chances through tonight. The best chances will remain across the extreme southern areas where low-level theta-e advection is a little more focused through tonight. Better chances all areas during Monday surges back above 1.5 inches. In the end the GFS may be a touch too fast with the arrival of the next system. In the end expect marginal instability to support mention of thunderstorms later in the day. Temperatures tonight will be well above normal with onshore flow and increasing cloud cover. Highs on Monday will be above normal as well but impeded by cloud cover. Short term tonight through Tuesday night As of 230 pm Sunday... The focus remains on the potent storm system projected to move across the area late Monday into Tuesday. There are still some minor differences in timing that likely won't be resolved until show time but the overall forecast has changed little. We are still advertising likely pops from east to west from 00 through 12 utc Tuesday. Severe parameters remain in place for a high shear low CAPE event. Spc continues to highlight a large area in a marginal risk due to the timing and instability questions. Some lighter showers may linger into the day Tuesday especially eastern areas as the front slows down as it becomes somewhat aligned with the mid level flow. A stronger shortwave gives the boundary a boost Tuesday afternoon. Regarding temperatures, cold air advection in the wake of the front doesn't arrive in force until late Tuesday, which should be another warm one relatively speaking. Lows Wednesday dip into the upper 40s west to near 50 east. Long term Wednesday through Sunday As of 230 pm Sunday... Initial portion of the long term looks to be dry as high pressure transits east across the eastern carolinas in the wake of a cold fropa. Showers moving in advance of the next cold front may impact the area as early as Saturday, but model solutions are still quite divergent as far as timing goes, with the ECMWF holding off on FROPA until after the weekend and the GFS being earlier. So, will limit pops to slight low chance for this weekend until the picture becomes clearer. It is possible that the weekend may also end up dry. Temperatures will start off below normal for late october for the first couple of days of the long term, warming to more climatologically-correct levels by Friday. |
Aviation 05z Monday through Friday As of 05z... MVFR ceilings will overspread the area from south to north through daybreak, along with isolated light showers. Very localized ifr lifr may impact kilm over the next few hours. Ceilings will lower and southerly winds will become gusty through the day Monday ahead of a cold front, which is expected to be on the doorstep of kflo klbt by 06z tue. Showers will become numerous by mid to late afternoon inland, and along the coast by evening, and a few tstms will be possible. Stronger storms will be capable of producing wind gusts to 30 knots, but confidence in timing the strongest convection is low at this point. Extended outlook... Intermittent ifr conditions are possible through Tuesday morning. BecomingVFR by midday Tuesday.VFR Wednesday through Friday. Marine Near term through Monday ... as of 900 pm Sunday... After this evening, marine conditions will deteriorate overnight from increasing and veering winds, from ese to SE overnight and SE to S by late Mon afternoon thru early evening. In addition, an increase to the isolated to scattered low topped showers within the low level onshore flow. The sfc pg will be tightening overnight thru Monday as the center of sfc high pressure retreats further offshore from the new england coast combined with the approach of the cold front from the west. Wind speeds will reach SCA thresholds by mon afternoon. Significant seas will be in a building trend tonight thru mon, reaching their peak late Mon night into tue. Initially, significant seas will be dominated by a 2 to 2.5 foot ese ground swell at 8 to 9 second periods. Wind driven waves at 4 to 5 second periods will eventually become the dominant player to the significant seas as measured by wave energy (m ^2 hz). Previous... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... ... .. As of 230 pm Sunday... High pressure off new england will continue to ridge back across the southeast coast. The high will begin losing its grip tonight but more-so Monday ahead of a strong cold front. As a result, easterly flow this evening will becoming southeast tonight into Monday morning before veering to a southerly direction Monday afternoon. Speeds will gradually increase as the pressure gradient tightens ahead of the cold front. Small craft advisory conditions appear marginal at this time for Monday afternoon. Widely scattered showers are possible across the southern waters through tonight and they will increase in coverage during Monday along with a chance of a tstm. Short term Monday night through Tuesday night ... as of 230 pm Sunday... Small craft conditions should be in place at the beginning of the period with a southerly flow of 20-25 knots and seas eclipsing six feet. Winds will increase a few knots by Tuesday morning as will seas as a strong low level jet moves across. For a good bit of Tuesday a southwest flow will prevail on the order of 15- 20 knots. Cold air advection will begin Tuesday evening and continue into early Wednesday although not overly impressive. This should lead to northwest winds of 15-20 knots. Seas later Tuesday through Wednesday will drop below small craft criteria. Long term Wednesday through Friday ... as of 230 pm Sunday... High pressure transiting east across the waters will lead to gradually improving boating conditions with dry weather through the long term. Period starts out with nw winds of 15 to 20 kts and 3 to 5 ft seas in the wake of the previous days fropa, but expect conditions to be become mo re favorable as the high moves overhead, with winds of around 10 kts by Friday and seas of around 2 ft. Ilm watches warnings advisories Sc... None. Nc... None. Marine... Small craft advisory from 2 pm this afternoon to 2 pm edt Tuesday for amz250-252-254-256. Synopsis... Srp near term... Dch srp short term... Shk long term... Rek aviation... Crm |
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 | 40 min | 67°F | 73°F | 1022.8 hPa | |||
| JMPN7 - 8658163 - Johnny Mercer Pier, Wrightsville Beach, NC | 12 mi | 40 min | ESE 12 G 14 | 75°F | 75°F | 1023.3 hPa | ||
| NOXN7 - North Carolina Reserve, NC | 14 mi | 85 min | SE 5.1 | 73°F | 1024 hPa | 68°F | ||
| 41110 - Masonboro Inlet, NC | 18 mi | 41 min | 74°F | 3 ft | ||||
| 41038 - ILM2 - 5 miles SE of Wrightsville Beach, NC | 18 mi | 62 min | ESE 14 G 18 | 75°F | 74°F | 1023.5 hPa | ||
| 41037 - ILM3 - 27 miles SE of Wrightsville Beach, NC | 39 mi | 62 min | SE 14 G 19 | 76°F | 76°F | 1023.7 hPa | ||
| 41108 | 44 mi | 40 min | 74°F | 4 ft | ||||
| 41024 - Sunset Nearshore (SUN 2) | 46 mi | 62 min | SE 12 G 16 | 74°F | 74°F | 1022.6 hPa |
Wind History for Wrightsville Beach, NC
(wind in knots) EDIT (on/off) Help| 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 | 12 AM | 1 AM | 2 AM | |
| Last 24hr | NE | N | N | N | N | N | NE | NE | NE | NE | NE | NE | NE | NE | NE | E | E | E | E | SE | SE | SE | SE | SE G15 |
| 1 day ago | NW | NW | NW | NW | NW | NW | NW | N | NE | NE | NE | NE | NE | E | E | E | E | E | E | E | E | E | E | E |
| 2 days ago | NW | NW | NW | NW | NW | NW | NW G7 | W | NW | SE | SE | SE | S | S | S | S | SW | SW | W | 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 | 17 min | N 0 | 10.00 mi | Fair | 63°F | 62°F | 97% | 1023.1 hPa |
Wind History from ILM (wind in knots)
| 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 | 12 AM | 1 AM | 2 AM | |
| Last 24hr | Calm | Calm | Calm | NE | NE | NE | NE | E | NE | SE | SE | E | E | E | E | E | E | E | NE | Calm | Calm | Calm | NE | Calm |
| 1 day ago | Calm | Calm | Calm | NE | Calm | Calm | Calm | NE | NE | SE | SE | SE | SE | E | E | E | Calm | Calm | Calm | Calm | Calm | Calm | Calm | Calm |
| 2 days ago | Calm | Calm | Calm | Calm | Calm | Calm | Calm | NW | Calm | W | W | Calm | E | S | S | Calm | Calm | Calm | Calm | Calm | Calm | Calm |
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 Mon -- 03:08 AM EDT 1.80 feet High Tide Mon -- 07:24 AM EDT Sunrise Mon -- 09:57 AM EDT 0.15 feet Low Tide Mon -- 10:44 AM EDT Moonrise Mon -- 03:36 PM EDT 1.96 feet High Tide Mon -- 06:27 PM EDT Sunset Mon -- 09:20 PM EDT Moonset Mon -- 10:36 PM EDT 0.23 feet Low 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 |
| 0.9 | 1.4 | 1.7 | 1.8 | 1.7 | 1.5 | 1.1 | 0.7 | 0.5 | 0.3 | 0.2 | 0.3 | 0.9 | 1.4 | 1.8 | 1.9 | 1.9 | 1.8 | 1.5 | 1.1 | 0.8 | 0.5 | 0.3 | 0.3 |
Tide / Current Tables for Wilmington, North Carolina
EDIT (on/off) Help One Week of Data| Wilmington Click for Map Mon -- 12:21 AM EDT 4.31 feet High Tide Mon -- 06:53 AM EDT 0.37 feet Low Tide Mon -- 07:24 AM EDT Sunrise Mon -- 10:44 AM EDT Moonrise Mon -- 12:50 PM EDT 4.67 feet High Tide Mon -- 06:27 PM EDT Sunset Mon -- 07:32 PM EDT 0.52 feet Low Tide Mon -- 09:20 PM EDT Moonset 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 |
| 4.3 | 4.2 | 3.6 | 2.7 | 1.8 | 1.1 | 0.6 | 0.4 | 0.9 | 2.1 | 3.4 | 4.2 | 4.5 | 4.7 | 4.3 | 3.6 | 2.6 | 1.8 | 1.1 | 0.6 | 0.6 | 1.4 | 2.6 | 3.5 |
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 (2,6,7,8)
(on/off) Help |  |  |
Ground Weather Radar Station Wilmington, NC
(on/off) Help
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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. |