Sunday, March26, 2017 L-36.com


Marine Weather and Tides
Atlantic Beach, SC

Version 3.4
What's New / NOTES
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.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 7:08AMSunset 7:33PM Sunday March 26, 2017 2:54 PM EDT (18:54 UTC) Moonrise 5:21AMMoonset 5:10PM Illumination 1% Phase: Waning Crescent; Moon at 29 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- 1254 Pm Edt Sun Mar 26 2017
This afternoon..SE winds 10 kt. Seas 3 ft.
Tonight..SE winds 10 kt. Seas 3 ft.
Mon..S winds 10 kt. Seas 3 ft.
Mon night..S winds 10 kt. Seas 3 ft. A slight chance of showers and tstms.
Tue..SW winds 10 kt...increasing to 10 to 15 kt in the afternoon. Seas 3 to 4 ft. A chance of showers.
Tue night..SW winds 10 to 15 kt with gusts up to 20 kt. Seas 3 to 4 ft...subsiding to 2 to 4 ft after midnight.
Wed..W winds 10 kt...becoming se. Seas 2 to 3 ft.
Thu..E winds 10 to 15 kt. Seas 2 to 4 ft...building to 3 to 4 ft. A chance of showers and tstms through the night. Winds and seas higher in and near tstms.
AMZ200 1254 Pm Edt Sun Mar 26 2017
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. Southeast to south flow around atlantic high pressure will continue through Mon. A weak cold front will approach the waters Tue...and track across the area waters and offshore during Wed. High pressure will follow and build across the area from the north Wed night into Thu. Another cold front will move across the waters on Fri.

7 Day Forecast for Marine Location Near Atlantic Beach, SC
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location: 33.81, -78.69     debug


Area Discussion for - Wilmington, NC
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Fxus62 kilm 261825
afdilm
area forecast discussion
national weather service wilmington nc
225 pm edt Sun mar 26 2017

Synopsis
Above normal temperatures will prevail much of the upcoming
week as high pressure offshore brings southerly winds. A series
of low pressure systems will bring a chance of rain Monday into
Tuesday, and again late next week. A cooling trend is expected
into next weekend.

Near term /through Monday/
As of 230 pm Sunday... Once again, a warm southerly flow has allowed
temperatures to rise in the mid and even upper 70s most places with
60s at the beaches. A diurnal CU field has formed, not as extensive
as yesterday, as ample low level moisture advection continues off of
the ocean. A few very light returns have appeared on radar but no
ground truth of any precip actually touching the ground yet.

Considering the very dry air aloft and lack of triggers, will be
keeping pops today below mentionable levels.

For tonight a light southerly flow will continue with high pressure
dominating the western atlantic. Lows will be in the mid 50s for
most locations.

Model soundings suggest another partly cloudy yet dry day as the
moist southerly low level flow continues around the western atlantic
ridge. Temperatures will remain above normal with highs in the mid
to upper 70s most places. A few places will hit 80.

Short term /Monday night through Tuesday night/
As of 230 pm Sunday... Another in a series of dampening shortwaves
will move across the tennessee valley and mid atlantic region
through the period with a a cold front trailing at the surface.

We continue to advertise low chance pops for the daytime hours
Tuesday with slight chance either side of this to address any
timing issues. The front will cross the area in the early
morning hours of Wednesday. Thermal profiles look slightly
warmer than recent days with the southwest flow ahead of the
system. Depending on the amount of sunshine Tuesday, there could
be widespread 80s. Overnight lows remain entrenched in the 50s.

Long term /Wednesday through Sunday/
As of 230 pm Sunday...

Aviation /19z Sunday through Friday/
As of 18z... High confidenceVFR for the next 12 hours of the taf
valid period for all sites. Moderate confidence ifr in fog
around and just before daybreak for our inland sites of lbt and
flo.

Extended outlook... Flight category restrictions are possible in a
few bouts of showers and thunderstorms late Mon through Tue and
again thurs night. ExpectVFR conditions after cold front moves
through on Wed lasting into thurs.

Marine
Near term /through Monday/...

as of 230 pm Sunday... A light south to south-easterly flow of
around 10 kts will continue through the near term as high
pressure continues its hold over the western atlantic. Winds
near shore this afternoon and Monday afternoon will be a little
bit higher, in the 10 to 15 kt range, and gustier as the
afternoon sea-breeze circulation sets up. Seas will remain right
around the 3 ft range through the period.

Short term /Monday night through Tuesday night/...

as of 230 pm Sunday... Very light winds from the south, southeast
initially will become better defined through the day Tuesday as a
cold front approaches from the west. Not the most overpowering flow
however as speeds increase to 15-20 knots briefly before backing off
Tuesday evening as the front loses some of its identity. Significant
seas will increase from initial 2-4 foot values to 3-5 feet Tuesday
afternoon and evening with the increase in winds.

Long term /Wednesday through Friday/...

as of 4 am Sunday... Light winds Wednesday in wake of a cold
front can be expected, followed by a wind-shift to the n_ne
Wednesday night as a back door cold front pushes across the 0-20
nm waters. Briefly this intrusion will transition to light wind
as the high moves overhead Thursday afternoon. A strong and
progressive southern system will bring increasing se-s winds
late Thursday and an advisory may very well be needed for 25 kt
gusts late Thursday night ahead of its cold front. Strong storms
and numerous showers appear likely on the water Friday.

Ilm watches/warnings/advisories
Sc... None.

Nc... None.

Marine... None.

Synopsis... Shk
near term... Rek
short term... Shk
long term... Mjc
aviation... Rek


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SSBN7 11 mi84 min 2 ft
MROS1 - 8661070 - Springmaid Pier, SC 16 mi54 min 1022.4 hPa (-1.2)
41108 36 mi37 min 60°F3 ft
NIWS1 - North Inlet-Winyah Bay Reserve, SC 41 mi69 min SE 8.9 72°F 1023 hPa55°F
WLON7 49 mi54 min 71°F 58°F1022.9 hPa (-1.2)

Wind History for Springmaid Pier, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
North Myrtle Beach Grand Strand Airport, SC2 mi61 minESE 710.00 miFair73°F57°F57%1023.2 hPa
Myrtle Beach Air Force Base, SC15 mi69 minSE 910.00 miPartly Cloudy73°F55°F53%1023.4 hPa
Conway Horry County Airport, SC23 mi59 minSSE 57.00 miPartly Cloudy73°F51°F47%1022.7 hPa

Wind History from CRE (wind in knots)
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Last 24hrS8S6S8S7S6SE4SE5CalmSE3SE3CalmSE5S7S3CalmCalmNE3CalmSE3SE6SE5SE6E6SE7
1 day agoSE8S7SE6SE5SE4SE6SE6S5S5S5S4S5CalmCalmCalmCalmCalmCalmCalmS4SW7SE5S8S8
2 days agoE14
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NE5NE4NE5NE4N5NE6NE7NE6N4NE4E4SE7SE6SE7SE7

Tide / Current Tables for Myrtle Beach Airport, South Carolina
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Myrtle Beach Airport
Click for Map
Sun -- 02:56 AM EDT     -0.20 feet Low Tide
Sun -- 06:20 AM EDT     Moonrise
Sun -- 07:10 AM EDT     Sunrise
Sun -- 08:37 AM EDT     3.21 feet High Tide
Sun -- 03:25 PM EDT     -0.35 feet Low Tide
Sun -- 06:09 PM EDT     Moonset
Sun -- 07:31 PM EDT     Sunset
Sun -- 08:49 PM EDT     3.22 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1.10.4-0-0.20.10.91.92.73.13.22.92.41.60.80.1-0.3-0.20.51.52.53.13.232.5

Tide / Current Tables for Dunn Sound, west end, South Carolina
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Dunn Sound
Click for Map
Sun -- 01:21 AM EDT     -0.23 feet Low Tide
Sun -- 06:20 AM EDT     Moonrise
Sun -- 07:09 AM EDT     Sunrise
Sun -- 07:20 AM EDT     5.34 feet High Tide
Sun -- 01:41 PM EDT     -0.39 feet Low Tide
Sun -- 06:09 PM EDT     Moonset
Sun -- 07:30 PM EDT     Sunset
Sun -- 07:34 PM EDT     5.32 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.3-0.2-0.10.723.44.75.35.24.43.21.90.6-0.2-0.40.31.534.45.25.34.63.52.2

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

GOES Local Image of Mid-Atlantic    EDIT
Geos

Wind Forecast for Wilmington, NC (14,3,4,5)
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Ground Weather Radar Station Wilmington, NC
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weather_mapweather_map weather_map

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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.