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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 6:08AM | Sunset 8:23PM | Friday July 19, 2019 12:07 AM EDT (04:07 UTC) | Moonrise 9:24PM | Moonset 7:32AM | Illumination 96% |  |
AMZ250 Coastal Waters From Surf City To Cape Fear Nc Out 20 Nm- 939 Pm Edt Thu Jul 18 2019
Overnight..SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Isolated showers and tstms.
Fri..SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Scattered showers and tstms, mainly in the morning.
Fri 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.
Sat..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Sat night..SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms.
Sun..SW winds 15 to 20 kt. Seas 3 ft. A chance of showers and tstms through the night.
Mon..SW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers and tstms.
Tue..SW winds 10 to 15 kt, diminishing to 10 kt. Seas 3 to 4 ft. A chance of showers and tstms through the day, then showers and tstms likely through the night. Winds and seas higher in and near tstms.
Overnight..SW winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 5 ft. Isolated showers and tstms.
Fri..SW winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 3 to 4 ft. Scattered showers and tstms, mainly in the morning.
Fri 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.
Sat..SW winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Sat night..SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers and tstms.
Sun..SW winds 15 to 20 kt. Seas 3 ft. A chance of showers and tstms through the night.
Mon..SW winds 15 to 20 kt. Seas 3 to 4 ft. A chance of showers and tstms.
Tue..SW winds 10 to 15 kt, diminishing to 10 kt. Seas 3 to 4 ft. A chance of showers and tstms through the day, then showers and tstms likely through the night. Winds and seas higher in and near tstms.
AMZ200 939 Pm Edt Thu Jul 18 2019
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Southwest winds will continue through the weekend as bermuda high pressure remains anchored offshore. A cold front is expected to reach the area late Tuesday.
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Southwest winds will continue through the weekend as bermuda high pressure remains anchored offshore. A cold front is expected to reach the area late Tuesday.
7 Day Forecast for Marine Location Near Holly Ridge, NC
Hourly EDIT Helplocation: 34.49, -77.61 debug
Area Discussion for - Wilmington, NC
(on/off) Help NOTE: mouseover dotted underlined text for definition| Fxus62 kilm 190144 afdilm area forecast discussion national weather service wilmington nc 944 pm edt Thu jul 18 2019 Synopsis Hot and humid weather with dangerous heat index values will continue through the weekend and into early next week. A cold front should push across the carolinas late Tuesday or early Wednesday, breaking the string of hot and humid days. Near term through Friday night As of 945 pm Thursday... One last round of convection fired up over the past hour from just north of conway to near whiteville. As low-level lapse rates continue to diminish with the loss of daytime heating and continued convective overturning of the atmosphere, odds are turning against any significant new convection developing. The 00z hrrr shows current activity dissipating, with some new showers developing around sunrise. This late evening update featured adjustments to pops and sky based on current radar and satellite trends, and to temperatures where significant storm activity around kingstree has pushed temps down to 72 on the last observation. Discussion from 700 pm follows... clusters of strong thunderstorms continue to affect the central and eastern carolinas this evening as a weak mid level trough provides enough enough lift to unleash surface-based CAPE of 3000 j kg. Winds aloft are modest so storm organization has been limited to loose multicell clusters. Massed cold pools behind the storms have produced forward-propagating linear features with strong wind gusts the primary threat. With such warm air aloft (freezing levels near 14000 feet) it's unlikely hail will be a significant threat. Href ensembles and recent hrrr runs indicate convection should gradually diminish this evening, with only an isolated shower or storm possible by midnight along the coast or offshore. Forecast pops have been adjusted accordingly to focus on the cluster of storms sweeping into williamsburg county from the west, and on the line of showers and storms along the seabreeze outflow interaction from myrtle beach to whiteville. Where heavy rain occurred earlier (like marion, sc) temperatures have already popped below forecast lows tonight. Once convection dissipates, a moderate-strength southwest low level jet should redevelop and keep the boundary layer reasonably well mixed overnight. Although not quite as warm overall as last night, i do think coastal and urban locations near CAPE fear have a good potential of seeing another night of 80+ degree lows. Wilmington has already had one such hot night this year (july 12) and may ring up a second one if temps remain 80 or higher through midnight tonight. A third may occur tomorrow if big storms avoid the city. Inland lows should generally fall to 75-78 degrees. Other changes to the forecast were generally minor. Discussion from 300 pm follows... heat advisory conditions expected again on Friday as high heat and humidity combine to produce dangerous heat with heat indices up over 105. A few places will near excessive heat warning criteria of 110 or higher. Temps will reach into the mid 90s most places once again Fri with overnight lows between 75 and 80 both tonight and Fri night. The westerly downslope flow in the lower levels should add to heat potential on fri, but should see more clouds around to help balance it out a bit. Mid level trough will shift slowly eastward trying to make its way across the carolinas tonight through Friday. This trough approaching from west will help to enhance convective development in an already unstable atmosphere. All models point at a late day spike in convection inland with activity diminishing as it moves toward the coast closer to midnight. Therefore best chc of greater storm coverage will be i-95 corridor late aftn and shifting toward the coast in a westerly steering flow, but diminishing later this evening into early overnight hour as we lose heating. The mid level trough will remain aligned from SW to NE over the carolinas as it eases slightly eastward overnight into fri. This should help to maintain greater cloud cover and convective activity with slightly higher SW winds through fri. This trough is coming up against ridge over the atlantic, though which should re-exert itself, especially heading into the weekend. Depending on how quickly, should end up with limited, if any activity heading into overnight fri, but another hot and humid day expected on fri. |
Short term Saturday through Saturday night As of 300 pm Thursday... The latest guidance has trended drier for Saturday but looking at model soundings profiles are similar to previous days so I have maintained the chance pops area wide. Not a lot of forcing is probably what guidance is keying on but the sea breeze boundary and outflows should be enough. Almost impossible to go with a dry forecast this time of year. Highs in the lower to middle 90s combined with the dewpoints well into the 70s will most likely warrant another heat advisory. Long term Sunday through Thursday As of 300 pm Thursday... The main focus of the extended will be on the events of the latter part of the period as guidance still points to a decent mid level trough developing and or moving across the eastern u.S. Of course there is the usual wobbling of the front and its final position but it will likely be in the area enhancing convection. The overall trend of the forecast remains intact, cooling temperatures with increasing pops. Aviation 00z Friday through Tuesday As of 00z... Made a quick adjustment to the forecast given radar trends with the north flank of the line of storms likely to impact kmyr from 01-02z. Otherwise expecting convection to gradually diminish through the mid late evening hours with the loss of heating. As a result,VFR CIGS vsbys will dominate the bulk of this TAF period overnight through Friday morning. Additional convection Friday afternoon could lead to tempo MVFR conditions but not enough confidence at this time to include other than vcts. Extended outlook...VFR conditions are expected outside any isolated to widely scattered convection through Monday, with increased chances of rain Tuesday. Marine As of 700 pm Thursday... Thunderstorms late this afternoon affected the waters north of wrightsville beach. Now that the storms are gone southwest winds are redeveloping across the this area with speeds similar to that being observed south toward cape fear and the grand strand area: 15-20 kt. These winds should largely continue overnight, maintaining a choppy 5-second dominant wave period with sea heights in the 4-5 foot range. This is just shy of small craft advisory thresholds. Thunderstorms in the myrtle beach area now at 7 pm should weaken as they move across the beaches, but outflow winds from these storms will create a couple hours of unsteady offshore wind directions. Models suggest only scattered showers or thunderstorms may redevelop overnight, perhaps organization late tonight along any landbreeze fronts that might develop off the south carolina coast. Discussion from 300 pm follows... gusty SW winds will continue into tonight in tightened gradient between trough inland and bermuda high. Gusts up to 20-25 kts will continue in sea breeze and enhanced troughing through tonight, but should diminish heading through Fri into the weekend with a spike up in the aftn sea breeze again. The southerly push will keep seas up between 3 and 5 ft overnight but seas should come down to 2 to 4 ft late Fri into sat. Winds and seas basically a persistence forecast for the short term and much of the extended. Southwest winds of 10-15 knots will continue with significant seas of 2-4 feet. Some uncertainty in the wind directions show up toward the end of the period as a front attempts to cross the area. Wind directions become basically erratic as is typical with a decaying front but speeds with this feature (also typical) will be very light. Ilm watches warnings advisories Sc... Heat advisory from 11 am to 7 pm edt Friday for scz017-023-024- 032-033-039-054>056-058-059. Beach hazards statement from 8 am edt Friday through Friday evening for scz054-056. Nc... Heat advisory from 11 am to 7 pm edt Friday for ncz087-096-099- 105>110. Beach hazards statement from 8 am edt Friday through Friday evening for ncz106-108. Marine... None. Synopsis... Tra near term... Tra rgz short term... Shk long term... Shk aviation... Srp |
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 |
| JMPN7 - 8658163 - Johnny Mercer Pier, Wrightsville Beach, NC | 21 mi | 55 min | SW 12 G 15 | 83°F | 79°F | 1016.1 hPa | ||
| 41038 - ILM2 - 5 miles SE of Wrightsville Beach, NC | 25 mi | 59 min | WSW 14 G 19 | 81°F | 80°F | 1016.1 hPa | ||
| 41110 - Masonboro Inlet, NC | 25 mi | 27 min | 80°F | 4 ft | ||||
| WLON7 | 26 mi | 55 min | 83°F | 87°F | 1016.6 hPa | |||
| 41037 - ILM3 - 27 miles SE of Wrightsville Beach, NC | 37 mi | 59 min | W 18 G 25 | 82°F | 83°F | 1016.6 hPa | ||
| 41064 | 40 mi | 59 min | WSW 19 G 25 | 84°F | 84°F | 1017.1 hPa | ||
| 41159 | 40 mi | 37 min | 84°F | 6 ft |
Wind History for Wrightsville Beach, NC
(wind in knots) EDIT (on/off) Help| 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 | |
| Last 24hr | SW G17 | SW G17 | SW G16 | SW | SW | SW | SW | SW | SW | SW | SW G13 | SW G14 | SW G17 | S G14 | S | S | S | S G22 | SW G7 | S | SW | SW | SW G21 | SW G17 |
| 1 day ago | S | SW | SW | SW | S | S | S | SW | SW | SW G11 | S G8 | S | S | S | S | S | S | S | S | S | S | S | SW G17 | |
| 2 days ago | SW | S | SW | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S | S |
Airport Reports
EDIT (on/off) Help Click EDIT to display multiple airports| Airport | Dist | Age | Wind kt | Visibility | Sky/Weather | Temp | DewPt | Humidity | Pressure |
| MCAS New River, NC | 17 mi | 71 min | SW 6 | 10.00 mi | A Few Clouds | 82°F | 75°F | 79% | 1016.4 hPa |
| Wilmington International Airport, NC | 22 mi | 74 min | SSW 9 | 10.00 mi | Fair | 83°F | 75°F | 79% | 1016.3 hPa |
| Jacksonville, Albert J Ellis Airport, NC | 23 mi | 71 min | SW 7 | 10.00 mi | Partly Cloudy | 81°F | 73°F | 77% | 1016.7 hPa |
Wind History from NCA (wind in knots)
| 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 | 12 AM | |
| Last 24hr | S | S | SW | S | S | S | S | SW | SW | SW | SW | SW | SW | SW | SW G17 | SW G28 | SW | S | S | S | SW | SW | SW | |
| 1 day ago | Calm | Calm | SW | S | S | Calm | Calm | SW | SW | SW | SW | S | SW | SE | S | S G18 | S | S G19 | S | S | S | SW | SW | SW |
| 2 days ago | S | S | S | S | Calm | S | S | S | S | SE | S | SE | SE | S | S G16 | S | S | S | S | SW | S | S | S |
Tide / Current Tables for Ocean City Beach (fishing pier), North Carolina
EDIT Weekend mode (on/off) (on/off) Help One Week of DataTide / Current data from XTide NOT FOR NAVIGATION
Tide / Current Tables for New Topsail Inlet, North Carolina
EDIT (on/off) Help One Week of DataNew Topsail Inlet
Click for Map
Fri -- 04:50 AM EDT 0.14 feet Low Tide
Fri -- 06:11 AM EDT Sunrise
Fri -- 08:32 AM EDT Moonset
Fri -- 10:14 AM EDT 2.92 feet High Tide
Fri -- 04:49 PM EDT 0.25 feet Low Tide
Fri -- 08:21 PM EDT Sunset
Fri -- 10:23 PM EDT Moonrise
Fri -- 10:26 PM EDT 3.23 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 04:50 AM EDT 0.14 feet Low Tide
Fri -- 06:11 AM EDT Sunrise
Fri -- 08:32 AM EDT Moonset
Fri -- 10:14 AM EDT 2.92 feet High Tide
Fri -- 04:49 PM EDT 0.25 feet Low Tide
Fri -- 08:21 PM EDT Sunset
Fri -- 10:23 PM EDT Moonrise
Fri -- 10:26 PM EDT 3.23 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 |
| 2.6 | 2 | 1.3 | 0.7 | 0.3 | 0.1 | 0.4 | 1.1 | 1.9 | 2.6 | 2.9 | 2.8 | 2.5 | 1.9 | 1.3 | 0.7 | 0.4 | 0.3 | 0.6 | 1.2 | 2.1 | 2.8 | 3.2 | 3.2 |
Weather Map and Satellite Images
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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 (0,6,7,8)
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Ground Weather Radar Station Morehead City, 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. |