Wednesday, November13, 2019 L-36.com


Marine Weather and Tides
Myrtle Beach, SC

Version 3.4
NOTICE
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 6:44AMSunset 5:15PM Wednesday November 13, 2019 5:42 AM EST (10:42 UTC) Moonrise 6:18PMMoonset 7:37AM Illumination 99% Phase: Waning Gibbous; Moon at 16 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- 320 Am Est Wed Nov 13 2019
.gale warning in effect until 11 am est this morning...
Today..N winds 25 to 30 kt with gusts up to 40 kt, becoming ne 15 to 20 kt with gusts up to 25 kt. Seas 5 to 7 ft.
Tonight..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft.
Thu..NE winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. A chance of rain in the morning, then rain likely in the afternoon.
Thu night..NE winds 10 to 15 kt. Seas 3 to 4 ft. Rain likely.
Fri..N winds 15 to 20 kt, increasing to 20 to 25 kt. Seas 4 to 5 ft, building to 5 to 7 ft. Rain.
Sat..N winds 25 to 30 kt. Seas 6 to 9 ft. Rain likely through the day, then a chance of rain through the night.
Sun..N winds 20 to 25 kt, diminishing to 15 to 20 kt. Seas 5 to 7 ft.
AMZ200 320 Am Est Wed Nov 13 2019
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Gale force northerly winds continue today ending by this afternoon with improving sea conditions, although rough chop likely to continue through this evening affecting smaller vessels. Low pressure developing just offshore late Thursday through Saturday may bring a second period of strong winds and high seas potentially reaching gale force.


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 130844
afdilm
area forecast discussion
national weather service wilmington nc
344 am est Wed nov 13 2019

Synopsis
Could possibly tie or break record for coldest high
temperatures today as arctic high pressure builds into the
carolinas. A slight moderation will occur Thursday into Friday
but a coastal trough will bring rain by Thursday night. The
weekend looks unsettled especially along the coast as a series
of fairly strong areas of low pressure form offshore.

Near term through Thursday
Northerly winds behind the recently passing cold front has brought
much cooler temperatures region wide. Temperatures this morning
were in the upper 20s to lower 30s, which was between 20 and 25
degrees colder than 24 hours ago. As cold high pressure settles
into the region, clouds will gradually decrease through the day with
plenty of sunshine but highs in the mid 40s. As high pressure
slides to the east, a front will be pushed inland from the atlantic
that is associated with surface cyclogenesis that will be the next
chances for rainfall Thursday. Afternoon highs Thursday will
increase into the 50s with chances for light rain Thursday afternoon
and evening.

Short term Thursday night through Friday night
Sharp coastal trough will extend up to carolina coast from low
pressure off of the ga coast. Very shallow cold air at the sfc
will be overrun by much warmer and moister air only a few
thousand ft above maintaining clouds and rain in the forecast
through thurs night into fri. As low pressure moves north
through thurs night, isentropic lift will increase as winds
increase enhancing rainfall amounts with embedded areas of
heavier rain, mainly along the coast into fri. The rainfall may
diminish for a little while Fri as low pressure lifts north and
trough aloft shifts eastward decreasing isentropic lift and
advecting drier air in through the mid levels. But, this will be
short lived as cutoff low in the mid levels tracks across the
southeast Fri night, with deepening sfc low off the coast.

Rainfall should increase once again. Overall, expect plenty of
clouds and periods of rain thurs night through Fri night,
especially closer to the coast. Clouds and rain will keep temps
cooler during the day, well below normal and overnight lows
above normal.

Long term Saturday through Tuesday
Deep low will move up through the southeast coastal waters with
increased isentropic lift. Expect periods of rain and cool gusty
northerly winds through Sat before low lifts off to the east
northeast leaving a deep northerly flow of cooler and drier air
as high pressure builds in behind it. Rainfall should diminish
through Sunday, but clouds may hang around as another low may
track up the coast Mon into tues spreading more clouds and rain
across the area. Overall, an unsettled period with afternoon
temps well below normal and it could feel quite raw at times
with gusty northerly winds.

Aviation 06z Wednesday through Sunday
Vfr conditions for area terminals with clearing skies and remnant
post-frontal gusts lasting into this afternoon.

Extended outlook...VFR through early Thu under high pressure. Better
chance for subVFR Thu night and especially Fri Sat as moisture from
the gulf along with potential developing coastal low pressure
impacts area.

Marine
Latest model guidance has winds and waves hanging on longer than
previous forecasts, so the gale warning has been extended for the
offshore waters. The gale for offshore sc waters expires at 11 am
and the nc waters at 3 pm. High pressure will gradually take over
and conditions will improve offshore this afternoon, although small
craft may find seas still a bit rough through this evening. A front
will approach shore as a low pressure system forms and will bring
rain chances, heavy at times, Thursday. Main wave train from the
north at 8 seconds with some diminishing swells from the south at 6
seconds and from the east at 10 seconds.

Coastal trough becomes more defined through thurs night into fri
as low pressure deepens off the ga coast and then tracks north.

This low should deepen off the carolina coast over the weekend
before it tracks off to the NE through Sunday. This should
maintain a stiff northerly flow from Fri through the weekend,
diminishing Sun into early next week as low lifts off to the
north. Seas will build through Fri in increasing northerly
winds. Depending on how this low evolves, should see strong sca
conditions over the weekend with strong northerly winds and seas
up to 7 to 11 ft, especially Fri night through early Sunday. Can
not rule out possible gales on Saturday.

Tides coastal flooding
Large tidal ranges associated with this month's full moon in
combination with stiff north-northeasterly winds this morning
should result in minor coastal flooding at the beaches and
downtown along CAPE fear river.

Ilm watches warnings advisories
Sc... Freeze warning until 9 am est this morning for scz054>056-058.

Nc... Freeze warning until 9 am est this morning for ncz106>110.

Marine... Gale warning until 7 am est this morning for amz250-252-254-
256.

Synopsis... Ilm
near term... Mck
short term... Rgz
long term... Rgz
aviation... Mck
marine... Mck rgz


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
MROS1 - 8661070 - Springmaid Pier, SC 2 mi72 min 32°F
41024 - Sunset Nearshore (SUN 2) 24 mi94 min N 21 G 29 34°F 64°F1025.1 hPa
41119 24 mi172 min 64°F2 ft
NIWS1 - North Inlet-Winyah Bay Reserve, SC 28 mi177 min N 8.9 32°F 1022 hPa23°F
41108 46 mi72 min 65°F6 ft

Wind History for Springmaid Pier, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Myrtle Beach Air Force Base, SC2 mi46 minN 810.00 miFair31°F21°F67%1025.6 hPa
North Myrtle Beach Grand Strand Airport, SC13 mi49 minN 1110.00 miFair31°F19°F64%1025.1 hPa
Conway Horry County Airport, SC16 mi47 minN 510.00 miFair30°F19°F64%1026.1 hPa

Link to 5 minute data for KMYR

Wind History from MYR (wind in knots)
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Last 24hrNW3SE3CalmSW3SW8W7W14
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1 day agoCalmCalmCalmW3W7SW3S5S6S7S8S8S6S4SW4S6S6S5SW5S7S6SW3SW5SW3Calm
2 days agoNW4NW3NW5NW6NW4W5W4S6S7S7S4S3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Myrtle Beach, South Carolina
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Myrtle Beach
Click for Map
Wed -- 01:25 AM EST     -0.10 feet Low Tide
Wed -- 06:45 AM EST     Sunrise
Wed -- 07:32 AM EST     5.85 feet High Tide
Wed -- 07:36 AM EST     Moonset
Wed -- 02:02 PM EST     0.14 feet Low Tide
Wed -- 05:13 PM EST     Sunset
Wed -- 06:17 PM EST     Moonrise
Wed -- 07:56 PM EST     4.94 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.6-000.82.23.755.75.85.24.12.71.40.50.10.51.42.63.84.74.94.63.72.5

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 (5,6,7,8)
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Ground Weather Radar Station Wilmington, NC
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weather_mapweather_map weather_map

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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.