Wednesday, June28, 2017

Marine Weather and Tides
Pawleys Island, SC

Version 3.4
What's New / NOTES
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 6:07AMSunset 8:31PM Wednesday June 28, 2017 1:27 AM EDT (05:27 UTC) Moonrise 10:05AMMoonset 11:15PM Illumination 18% Phase: Waxing Crescent; Moon at 4 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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AMZ256 Coastal Waters From Murrells Inlet To South Santee River Sc Out 20 Nm- 956 Pm Edt Tue Jun 27 2017
Overnight..E winds 10 kt or less. Seas 1 to 2 ft...then 2 ft.
Wed..E winds 10 to 15 kt. Seas 2 ft.
Wed night..SE winds 10 to 15 kt...diminishing to 10 kt after midnight. Seas 2 to 3 ft.
Thu..E winds 10 kt...becoming se 10 to 15 kt in the afternoon. Seas 2 ft...building to 3 ft in the afternoon.
Thu night..SE winds 10 to 15 kt...diminishing to 10 kt after midnight. Seas 3 ft. A chance of showers and tstms.
Fri..S winds 10 kt. Seas 3 ft...subsiding to 2 ft in the afternoon. A chance of showers and tstms.
Fri night..S winds 10 kt. Seas 2 ft. A chance of showers and tstms.
Sat..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Sun..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms. Winds and seas higher in and near tstms.
AMZ200 956 Pm Edt Tue Jun 27 2017
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. High pressure will dominate conditions across the coastal waters for most of the week into the weekend.

7 Day Forecast for Marine Location Near Pawleys Island, SC
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location: 33.45, -79.11     debug

Area Discussion for - Wilmington, NC
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Fxus62 kilm 280155
area forecast discussion
national weather service wilmington nc
940 pm edt Tue jun 27 2017

Isolated showers are possible this evening as a weak upper
level disturbance passes across the region. High pressure will
continue to build over the area on Wednesday and slide off the
coast by the weekend. This will allow for the return of warm and
humid weather conditions with mainly afternoon and even
thunderstorms through early next week.

Near term through Wednesday
As of 940 pm Tuesday... Some very pleasant mid june weather expected
through the period. A large 1020+mb high will be moving east to our
north, crossing the chesapeke bay early tomorrow. The light N winds
on its southern periphery have advected some mid 60s dewpoint into
the region. Once mixing deepens tomorrow these values could fall
further into the upper 50s, which are not terribly common this time
of year. Tomorrow afternoon's seabreeze should raise these values a
bit. Westerly mid level flow weakens through the period behind the
exting upper trough. Pair this with the dryness of the column and
cloud cover will be hard to come by.

Short term Wednesday night through Thursday night
As of 300 pm Tuesday... Cool temperatures persist Thursday but
slow warming will develop late in the period as ridging
amplifies offshore. Cool surface high across the mid-atlantic
will shift offshore Thursday allowing winds to shift from E to s
as return flow develops. 850mb temps recover slowly however,
remaining around 12- 14c Thursday aftn, so despite abundant
sunshine thanks to a very dry column (pwats around 1 inch) highs
will be pleasant in the mid to upr 80s. As return flow develops
late Thursday and especially Thursday night, mid-level ridge
blossoms offshore while a piece of vorticity energy lifts ne
from the gom across the carolinas. Forecast soundings suggest
cloud cover increasing rapidly Thursday night, and a weak
surface trough may develop along the coast. This will bring
increasing rain chances late in the period, especially across sc
zones, but residual dry air will keep pop limited to 30 percent
or less for now. This cloud cover and southerly winds will keep
mins around 70 Thursday night, about 5 degrees warmer than the
cool Wednesday night to start this period.

Long term Friday through Tuesday
As of 300 pm Tuesday... Bermuda high pressure will be well
established with the trough of low pressure inland. Temperatures
will be gradually warming and the moisture will be increasing
with dew points in the 70s returning. Precipitable waters over
the weekend increase to 2 inches and this will bring the best
coverage for diurnal thunderstorms with slightly less coverage
early next week.

Aviation 00z Wednesday through Sunday
As of 00z...VFR through the period as post-frontal high pressure to
our north slides eastward. In fact the only fm groups in the tafs
will be to reflect a gradual change in the wind direction as this
high moves east.

Extended outlook... Flight restrictions possible in thunderstorms
Saturday afternoon.

Near term through Wednesday ...

as of 940 pm Tuesday...

minimal conditions compliments of high pressure well to our north
and west progressing eastward across va (winds as low as 4kt all the
way out at 41013!). A small secondary high offshore is currently
keeping wind light and variable but as it washes out overnight the
high to our north will become the main wind-maker. A general E to ne
flow is expected to dominate by morning.

Short term Wednesday night through Thursday night ... As of 300 pm
Tuesday... High pressure migrating off the mid-atlantic coast
Wednesday night will take up position offshore during Thursday. This
allows winds to shift slowly through the period from E Wednesday
night, around to the S by Thursday night. As the high pressure
remains dominant, the pressure gradient will be weak so wind speeds
will just be around 10 kts regardless of direction. Although winds
will be light, lack of a meaningful ground swell will allow a 6 sec
wave to be predominant in the spectrum producing 2-3 ft seas across
the waters.

Long term Friday through Sunday ...

as of 3 pm Tuesday... Bermuda high pressure will be established
over the waters with winds shift from the south at 10 knots and
shifting to the southwest at 10 to 15 knots. Seas will range
between 2 to 3 feet Friday and Saturday and 3 to 4 feet on

Ilm watches warnings advisories
Sc... None.

Nc... None.

Marine... None.

Near term... mbb
short term... Jdw
long term... Drh
aviation... mbb

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NIWS1 - North Inlet-Winyah Bay Reserve, SC 8 mi102 min NW 4.1 73°F 1018 hPa69°F
MROS1 - 8661070 - Springmaid Pier, SC 18 mi39 min 1017.6 hPa
SSBN7 43 mi147 min 1 ft
41024 - Sunset Nearshore (SUN 2) 43 mi79 min NW 5.8 G 7.8 78°F 80°F1017.8 hPa

Wind History for Springmaid Pier, SC
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1 day
2 days

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Georgetown County Airport , SC15 mi32 minN 010.00 miFair68°F68°F100%1018.6 hPa
Myrtle Beach Air Force Base, SC19 mi31 minN 010.00 miFair72°F68°F87%1018.7 hPa

Wind History from GGE (wind in knots)
Last 24hrCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN3N3E4E5CalmSE8SE7SE4CalmCalmCalmCalmCalmCalm
1 day agoN3NW3CalmCalmCalmN3N6NE8NE6NE9NE8NE7E11
2 days agoCalmCalmCalmSW4CalmW3W3W6W7W4CalmW4SW4SW4W5S8SW4CalmCalmCalmCalmCalmCalmCalm

Tide / Current Tables for Midway Inlet North, Pawleys Island, South Carolina
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Midway Inlet North
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Wed -- 06:09 AM EDT     Sunrise
Wed -- 06:35 AM EDT     -0.27 feet Low Tide
Wed -- 11:04 AM EDT     Moonrise
Wed -- 12:28 PM EDT     4.47 feet High Tide
Wed -- 06:48 PM EDT     0.02 feet Low Tide
Wed -- 08:30 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Allston Creek, South Carolina
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Allston Creek
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Wed -- 12:27 AM EDT     5.06 feet High Tide
Wed -- 06:08 AM EDT     Sunrise
Wed -- 07:25 AM EDT     -0.25 feet Low Tide
Wed -- 11:04 AM EDT     Moonrise
Wed -- 01:04 PM EDT     4.31 feet High Tide
Wed -- 07:38 PM EDT     0.02 feet Low Tide
Wed -- 08:30 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Weather Map and Satellite Images
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Weather Map
IR Satellite Image from GEOS

GOES Local Image of Southeast    EDIT

Wind Forecast for Wilmington, NC (1,6,7,8)
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Ground Weather Radar Station Wilmington, NC
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weather_mapweather_map weather_map

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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 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 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.