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Marine Weather and Tides
Version 3.4 |
10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 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 7:04AM | Sunset 5:08PM | Thursday December 5, 2019 11:50 AM EST (16:50 UTC) | Moonrise 1:39PM | Moonset 12:43AM | Illumination 63% | ![]() |
AMZ254 Coastal Waters From Little River Inlet To Murrells Inlet Sc Out 20 Nm- 901 Am Est Thu Dec 5 2019
Rest of today..NW winds 10 to 15 kt, becoming N 10 kt this afternoon. Seas 2 to 3 ft late this morning, then 1 to 2 ft.
Tonight..NE winds 5 kt, becoming E after midnight. Seas 1 foot.
Fri..S winds 10 kt. Seas 1 foot. A chance of sprinkles in the afternoon.
Fri night..N winds 10 kt. Seas 1 foot, then 2 ft after midnight. A chance of rain in the evening, then a slight chance of showers after midnight.
Sat..NE winds 10 to 15 kt. Seas 3 to 4 ft.
Sun..NE winds 10 to 15 kt, becoming se 10 kt. Seas 3 to 4 ft. A chance of showers through the night.
Mon..S winds 10 to 15 kt. Seas 3 to 4 ft, building to 4 to 6 ft. A chance of showers.
Rest of today..NW winds 10 to 15 kt, becoming N 10 kt this afternoon. Seas 2 to 3 ft late this morning, then 1 to 2 ft.
Tonight..NE winds 5 kt, becoming E after midnight. Seas 1 foot.
Fri..S winds 10 kt. Seas 1 foot. A chance of sprinkles in the afternoon.
Fri night..N winds 10 kt. Seas 1 foot, then 2 ft after midnight. A chance of rain in the evening, then a slight chance of showers after midnight.
Sat..NE winds 10 to 15 kt. Seas 3 to 4 ft.
Sun..NE winds 10 to 15 kt, becoming se 10 kt. Seas 3 to 4 ft. A chance of showers through the night.
Mon..S winds 10 to 15 kt. Seas 3 to 4 ft, building to 4 to 6 ft. A chance of showers.
AMZ200 901 Am Est Thu Dec 5 2019
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. High pressure will prevail today through early Friday. The next cold frontal passage will occur Friday night followed by strong high pressure from the north ridging across the area through the weekend. Increasingly unsettled weather with a potential coastal low possible early next week.
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. High pressure will prevail today through early Friday. The next cold frontal passage will occur Friday night followed by strong high pressure from the north ridging across the area through the weekend. Increasingly unsettled weather with a potential coastal low possible early next week.
7 Day Forecast for Marine Location Near Socastee, SC
Hourly EDIT Helplocation: 33.69, -79.01 debug
Area Discussion for - Wilmington, NC
  (on/off)  Help NOTE: mouseover dotted underlined text for definitionFXUS62 KILM 051412 AFDILM
Area Forecast Discussion National Weather Service Wilmington NC 912 AM EST Thu Dec 5 2019
SYNOPSIS. Dry and seasonable weather will continue as high pressure moves across the area through early Fri. Warmer weather on Friday will be followed by clouds and chance of rain Friday night as a cold front moves through. Cool and dry high pressure will build down from the north on Saturday with a wedge developing by Sunday. Unsettled but warm weather will come late Sunday through early next week as a warm front lifts north followed by a cold front into mid week.
UPDATE. No significant changes to the forecast this morning with the update. I did adjust temperature trends slightly for the first couple of hours. Increased cloud cover slightly as well with some high level moisture streaming in.
NEAR TERM /THROUGH FRIDAY/. High pressure dominates today with clear skies, light winds, and near normal temperatures this afternoon in the upper 50s to lower 60s. High pressure shifts to the east tonight and winds return from the southwest, which will advect warm and increasingly moist air. The next weather making system will be a fast moving upper level shortwave trough and associated surface cold front that will bring chances for some afternoon sprinkles and light rain Friday afternoon into the evening. Highs Friday will read the low to mid 60s, which is slightly above normal for early December.
SHORT TERM /FRIDAY NIGHT THROUGH SATURDAY NIGHT/. Short term begins with cold front moving through Friday night. Have slightly increase POPs for Friday night as low level moisture is most optimal in this time range. Regardless, not expecting much in the way of measurable rain with anything that forms. Lows Friday night will depend on cloud coverage. Euro clears the skies faster with lows dropping to near 40 degrees, while the GFS wants to maintain low clouds into the morning, especially along the coast. Currently favoring cooler temps for Friday night. High pressure builds in from the north Saturday keeping high temps few degrees below climo with afternoon sunshine. As the high to our north moves over the Northeast, a wedge builds into the region late Saturday. While short-lived, the wedge will keep temps cool Saturday night with low 30s inland and near 40 along the coast.
LONG TERM /SUNDAY THROUGH WEDNESDAY/. Wedge in place early Sunday will erode by Monday morning. High temps Sunday are tricky with warm advection right above the northerly flow at the surface. As the surface high over the NE moves offshore Sunday night, the aforementioned warm advection increased with the return flow. Weak isentropic lift late Sunday into Monday morning will lead to slight chance of rain, mainly along the coast. As the wedge erodes Sunday night and return flow develops at the surface, a non-diurnal temp trend develops, with temps near 50 degrees remaining pretty steady throughout the night. Rain chances and cloud cover increase during the day Monday through Tuesday with decent isentropic lift Monday and continued warm advection Tuesday. High temps both days look to reach 70 degrees, with lows Monday night near 60, which is the climatological high temp for this time of year. A cold front is progged to move through the area Tuesday afternoon/night. Behind the front, high pressure builds in from the NW cooling us down from the warm start to the week.
AVIATION /14Z THURSDAY THROUGH MONDAY/. Mostly clear skies with a few cirrus passing overhead and VFR throughout the period. Winds will be out of the northwest during the day and become calm overnight.
Extended Outlook . Mostly VFR. TEMPO MVFR conditions possible, associated with a cold front, late Fri and again Sun into Mon.
MARINE. Little concern offshore today with light northwest winds under 10 kts today shifting to the southwest Friday under 10 kts. Significant wave heights at 2 feet or less for the next 36 hours mainly from the northwest and southeast at around 6 seconds.
Cold front moves across the waters Friday night, with slight chance of rain and veering of winds from NW to NE. Tightened pressure gradient by Saturday afternoon as high builds in from the north, increasing northeast winds to near 20 kts through Sunday afternoon. Combined with increase of seas to 3-5 ft every 5-6 sec, will be close to SCA conditions. As high to our north moves offshore, return flow develops across our waters Sunday evening, with E-SE winds dropping to ~10 kts and seas decreasing to 2-4 ft every 6-7 sec. With broad high pressure over the western Atlantic Monday, a nice southerly fetch develops increasing seas to 4-6 ft every 8-9 sec Monday afternoon through Tuesday night. SCA may be need late Monday through Tuesday. S-SW winds Monday through Tuesday, increasing to 15-20 kts Tuesday afternoon. Will also see increased rain chances Monday and Tuesday. Another cold front moves through late Tuesday, with seas decreasing to 2-4 ft Wednesday with NW winds around 15 kts.
ILM WATCHES/WARNINGS/ADVISORIES. SC . None. NC . None. MARINE . None.
SYNOPSIS . ILM UPDATE . SHK NEAR TERM . MCK SHORT TERM . VAO LONG TERM . VAO AVIATION . 21 MARINE . MCK/SHK/VAO
Weather Reporting Stations
EDIT (on/off)  Help NOTE: Click on distance to see the station location on a mapStations | Dist | Age | Wind | Air Temp | Water Temp | Waves | Pressure | DewPt |
MROS1 - 8661070 - Springmaid Pier, SC | 6 mi | 57 min | 55°F | |||||
NIWS1 - North Inlet-Winyah Bay Reserve, SC | 25 mi | 66 min | NNW 4.1 | 55°F | 1019 hPa | 33°F | ||
41024 - Sunset Nearshore (SUN 2) | 30 mi | 43 min | N 12 G 18 | 53°F | 56°F | 1019.7 hPa | ||
41119 | 30 mi | 121 min | 55°F | 2 ft |
Wind History for Springmaid Pier, SC
(wind in knots) EDIT (on/off)  HelpLast 24hr | ||||||||||||||||||||||||
1 day ago | ||||||||||||||||||||||||
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 |
Myrtle Beach International Airport, SC | 4 mi | 55 min | N 9 | 10.00 mi | Fair | 56°F | 28°F | 34% | 1019.5 hPa |
Conway Horry County Airport, SC | 11 mi | 56 min | NNE 8 | 10.00 mi | Fair | 55°F | 30°F | 38% | 1019.6 hPa |
North Myrtle Beach Grand Strand Airport, SC | 17 mi | 58 min | N 12 G 17 | 10.00 mi | Fair | 56°F | 28°F | 34% | 1019.2 hPa |
Link to 5 minute data for KMYR
Wind History from MYR (wind in knots)
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 | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | |
Last 24hr | NW | W | W | SW | W | SW | W | W | W | SW | W | W | W | W | W | W | W | W | NW | NW | NW | NW | N G19 | N |
1 day ago | W | W | W | W | W | W | SW | W | W | SW | W | W | W | W | W | SW | W | W | W | W | W | NW | NW | |
2 days ago | NW G20 | NW G26 | NW G22 | NW G27 | W G21 | NW G22 | W | W | NW | W | W | NW | NW | W | W | W | W | W | W | NW | W | W | W | W |
Tide / Current Tables for Socastee Bridge, ICWW, South Carolina
EDIT Weekend mode (on/off) (on/off)  Help One Week of DataSocastee Bridge
Click for Map
Thu -- 12:43 AM EST Moonset
Thu -- 12:54 AM EST 0.54 feet Low Tide
Thu -- 05:42 AM EST 1.75 feet High Tide
Thu -- 07:05 AM EST Sunrise
Thu -- 01:12 PM EST 0.71 feet Low Tide
Thu -- 01:38 PM EST Moonrise
Thu -- 05:07 PM EST Sunset
Thu -- 06:08 PM EST 1.86 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 12:43 AM EST Moonset
Thu -- 12:54 AM EST 0.54 feet Low Tide
Thu -- 05:42 AM EST 1.75 feet High Tide
Thu -- 07:05 AM EST Sunrise
Thu -- 01:12 PM EST 0.71 feet Low Tide
Thu -- 01:38 PM EST Moonrise
Thu -- 05:07 PM EST Sunset
Thu -- 06:08 PM EST 1.86 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 |
0.6 | 0.5 | 0.7 | 1.1 | 1.5 | 1.7 | 1.7 | 1.7 | 1.5 | 1.3 | 1.1 | 0.9 | 0.8 | 0.7 | 0.8 | 1.1 | 1.5 | 1.7 | 1.9 | 1.8 | 1.7 | 1.4 | 1.2 | 0.9 |
Tide / Current Tables for Myrtle Beach, South Carolina
EDIT (on/off)  Help One Week of DataMyrtle Beach
Click for Map
Thu -- 12:42 AM EST Moonset
Thu -- 01:57 AM EST 4.19 feet High Tide
Thu -- 07:05 AM EST Sunrise
Thu -- 07:59 AM EST 1.27 feet Low Tide
Thu -- 01:38 PM EST Moonrise
Thu -- 02:22 PM EST 4.54 feet High Tide
Thu -- 05:06 PM EST Sunset
Thu -- 08:31 PM EST 0.80 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Thu -- 12:42 AM EST Moonset
Thu -- 01:57 AM EST 4.19 feet High Tide
Thu -- 07:05 AM EST Sunrise
Thu -- 07:59 AM EST 1.27 feet Low Tide
Thu -- 01:38 PM EST Moonrise
Thu -- 02:22 PM EST 4.54 feet High Tide
Thu -- 05:06 PM EST Sunset
Thu -- 08:31 PM EST 0.80 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 |
3.4 | 4 | 4.2 | 4 | 3.4 | 2.6 | 1.9 | 1.4 | 1.3 | 1.4 | 1.9 | 2.6 | 3.4 | 4.1 | 4.5 | 4.4 | 3.9 | 3 | 2.1 | 1.3 | 0.9 | 0.9 | 1.2 | 1.9 |
Weather Map
(on/off)  Help Weather Map
GEOS Local Image of 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 (11,2,3,4)
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Ground Weather Radar Station Wilmington, NC
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