Sunday, April5, 2020
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Marine Weather and Tides
Myrtle Beach, SC

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
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.

Sunrise 6:55AMSunset 7:40PM Sunday April 5, 2020 4:49 PM EDT (20:49 UTC) Moonrise 4:01PMMoonset 4:38AM Illumination 95% Phase: Waxing Gibbous; Moon at 13 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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AMZ254 Coastal Waters From Little River Inlet To Murrells Inlet Sc Out 20 Nm- 313 Pm Edt Sun Apr 5 2020
Tonight..S winds 5 to 10 kt. Seas 2 ft.
Mon..SW winds 5 to 10 kt. Gusts up to 20 kt in the afternoon. Seas 2 to 3 ft.
Mon night..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers with isolated tstms.
Tue..SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers with isolated tstms.
Tue night..SW winds 10 to 15 kt. Seas 3 to 4 ft. A chance of showers with isolated tstms in the evening.
Wed..W winds 10 to 15 kt. Seas 2 to 3 ft.
Thu..W winds 10 to 15 kt, becoming nw. Seas 2 to 3 ft.
Fri..N winds 5 to 10 kt, becoming w. Seas 2 to 3 ft. Winds and seas higher in and near tstms.
AMZ200 313 Pm Edt Sun Apr 5 2020
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. High pressure will drop off the southeast coast early this week, bringing sw winds. Low pressure passing north of the waters will bring moderate west winds Wednesday and Thursday.


7 Day Forecast for Marine Location Near Myrtle Beach, SC
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location: 33.68, -78.89     debug


Area Discussion for - Wilmington, NC
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FXUS62 KILM 051920 AFDILM

Area Forecast Discussion National Weather Service Wilmington NC 320 PM EDT Sun Apr 5 2020

SYNOPSIS. A warmup will get underway tomorrow as high pressure moves off the coast. Upper level disturbances may bring isolated showers and storms Monday and Tuesday. A cold front arrives Thursday to bring a return of seasonable weather.

NEAR TERM /THROUGH MONDAY NIGHT/. Expect fair weather tonight as high pressure shifts off the coast. A cold front approaching from the north could spawn scattered showers and isolated thunderstorms Monday afternoon and evening. Coverage looks limited though. Lows tonight will be in the lower to middle 50s. Highs Monday will be in vicinity of 80 with lows Monday night around 60.

SHORT TERM /TUESDAY THROUGH TUESDAY NIGHT/. Isolated showers and storms will still be tough to rule out Tuesday during peak heating. At this time forecast soundings are showing the CAPE could approach 1500J/Kg. SC will have the higher chances being closer to the weak mid level impulses crossing overhead in WNW flow. Afternoon highs will wind up close to 80 away from the beaches where a cooling sea breeze will develop.

LONG TERM /WEDNESDAY THROUGH SUNDAY/. Steep low level lapse rates remain on Wednesday but mid to upper level drying will aim to keep the area rain-free even as afternoon temps warm into the mid 80s (again cooler at beaches/immediate coast). This warmth remain on Thursday and models have stayed surprisingly rain-free despite the late day arrival of a moderate cold front. Thereafter the forecast will be pretty seasonable in a dry NW to WNW flow aloft.

AVIATION /18Z SUNDAY THROUGH FRIDAY/. Scattered to broken mid-clouds are starting to move their way into the western parts of the forecast area, including KFLO. Elsewhere, the cloud deck remains above 10,000 feet. Winds now have a southeasterly or southerly component to them, and will continue to veer southwesterly throughout the TAF period. Patchy fog could occur before sunrise Monday morning, bringing visibilities down to MVFR for a few hours before eroding away around 14Z. There is a chance that isolated showers/storms could occur towards the very end of the 18Z TAF period, but confidence is currently too low to include those possibilities at the moment.

Extended Outlook . Flight restrictions are possible as early as Monday evening, but more likely on Tuesday. Flight restrictions lift mid-week, and look clear through the rest of the week.

MARINE. Light winds this afternoon will become South tonight and remain S to Sw through the rest of the period at 15 KT or less. Seas will run 2 to 4 FT.

High pressure will be located offshore on Tuesday bringing a southwesterly flow of 10-15kt range. Not much appears to change on Wednesday with respect to wind and waves even as a weak inland trough develops. A healthy cold front is expected later Thursday but the flow aloft will not be too favorable for much of an increase in winds but it will bring a sharp windshift.

ILM WATCHES/WARNINGS/ADVISORIES. SC . None. NC . None. MARINE . None.



NEAR TERM . 31 SHORT TERM . mbB LONG TERM . mbB AVIATION . IGB


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MROS1 - 8661070 - Springmaid Pier, SC 2 mi49 min 62°F
41024 - Sunset Nearshore (SUN 2) 24 mi41 min SSE 9.7 G 14 62°F 63°F1018.4 hPa
41119 24 mi119 min 63°F2 ft
NIWS1 - North Inlet-Winyah Bay Reserve, SC 28 mi64 min E 7 63°F 1018 hPa55°F
41108 46 mi49 min 63°F3 ft

Wind History for Springmaid Pier, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Myrtle Beach International Airport, SC2 mi53 minSSE 610.00 miFair65°F52°F63%1018.8 hPa
North Myrtle Beach Grand Strand Airport, SC13 mi56 minS 910.00 miFair67°F54°F63%1018.5 hPa
Conway Horry County Airport, SC16 mi54 minSSE 610.00 miFair70°F50°F50%1018.3 hPa

Link to 5 minute data for KMYR

Wind History from MYR (wind in knots)
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Last 24hrS9SE8SE6CalmCalmSE3SE6E5E8E46E7665E7E85E55SE7SE7SE6SE6
1 day agoNW18
G22
NW11NW10NW5CalmCalmCalmCalmCalmCalmNW4NW3N4N7N4NW4N5CalmE4E9E5SE8SE9SE9
2 days agoW8--W7----3CalmW5W6NW4N4NW5NW4NW6NW4NW5NW9NW14NW10
G18
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Tide / Current Tables for Myrtle Beach, South Carolina
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Myrtle Beach
Click for Map
Sun -- 05:37 AM EDT     Moonset
Sun -- 05:49 AM EDT     5.71 feet High Tide
Sun -- 06:57 AM EDT     Sunrise
Sun -- 12:15 PM EDT     -0.46 feet Low Tide
Sun -- 05:00 PM EDT     Moonrise
Sun -- 06:21 PM EDT     5.63 feet High Tide
Sun -- 07:39 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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-0.40.21.534.55.45.75.242.61.20.1-0.4-0.30.623.64.95.65.54.63.11.50.1

Tide / Current Tables for Socastee Bridge, South Carolina
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Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.


Weather Map
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wmap_A
GEOS Local Image of Southeast    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 (16,3,4,5)
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Ground Weather Radar Station Wilmington, NC
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weather_mapweather_map weather_map

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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 numerous 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.