Monday, August19, 2019 L-36.com


Marine Weather and Tides
George, SC

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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 6:39AMSunset 7:59PM Monday August 19, 2019 10:32 AM EDT (14:32 UTC) Moonrise 9:31PMMoonset 9:12AM Illumination 84% Phase: Waning Gibbous; Moon at 19 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- 918 Am Edt Mon Aug 19 2019
Rest of today..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms late this morning.
Tonight..SW winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms after midnight.
Tue..S winds 10 to 15 kt. Seas 2 to 3 ft. A slight chance of showers and tstms.
Tue night..S winds 10 to 15 kt. Seas 3 ft. A chance of showers and tstms.
Wed..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Thu..SW winds 10 to 15 kt. Seas 2 to 3 ft. A chance of showers and tstms.
Fri..SW winds 10 kt. Seas 2 to 3 ft. A chance of showers and tstms through the day, then showers and tstms likely through the night. Winds and seas higher in and near tstms.
AMZ200 918 Am Edt Mon Aug 19 2019
Synopsis for coastal waters from surf city north carolina to south santee river south carolina out to 20 nautical miles.. A stationary front will transition to a trof of low pressure across the central carolinas that will persist thru Thu. Weak high pressure will affect the area thru the midweek period. A cold front will drop from the north and stall across the area during Fri.


7 Day Forecast for Marine Location Near George, SC
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location: 33.37, -79.27     debug


Area Discussion for - Wilmington, NC
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Fxus62 kilm 191316
afdilm
area forecast discussion
national weather service wilmington nc
916 am edt Mon aug 19 2019

Synopsis
A stationary front will transition into a trof of low pressure
across the central carolinas and will persist thru late this
week. Weak high pressure will affect the area thru the midweek
period. A cold front will drop down from the north and stall
across the area Fri thru next weekend.

Update
No significant changes to going forecast this morning. Drier air
aloft will limit the areal extent of convection this afternoon,
and it should be confined to areas along and inland of the sea
breeze. Bermuda high will be the main synoptic feature, with
temps reaching the upper 80s beaches to low 90s inland.

Near term through Tuesday
The fa will remain trapped between the 2 synoptic upper highs,
within weak upper troffing. The upper trof axis will remain west
of the ilm CWA and as a result will be affecting moreso by the
flow around the bermuda high.

Today models feature some drying aloft with pws having dropped
below 2 inches and could further lower to around 1.70 inches.

Still though, plenty of avbl moisture for convection to develop.

The sea breeze and the stalled front, which will transition
into a sfc trof across the central carolinas, will provide the
necessary force ie. Vertical motions, to initiate convection
both days. The days insolation will provide plenty of
instability both days to fuel thunderstorms. Pops will run 20 to
40 today and 30-40 tue... Lowest along the immediate coast
especially in the wake of the inland progressing sea breeze
during both days. MAX temps will run slightly above normal today
and near normal tue. The low to mid 70s dewpoints today will
combine with afternoon temps in the 90 to 95 range, and produce
heat indices at 100-103 degrees, just below the 105 threshold
for a heat advisory. Tonights lows will run above the norm.

Short term Tuesday night through Wednesday night
Weak 5h cutoff develops in the break in mid-level ridge over the
southeast early tue. This feature is slow to move northeast, with
deep southerly flow helping to spread moisture over the eastern
carolinas. As the low drifts east-northeast, it will send an
occasional shortwave across the area. The enhancement of upward
motion ahead of each wave coupled with diurnal instability and deep
moisture will produce a convectively active period. The sea breeze
and lingering convective boundaries will also act as potential
triggers for daily convection. Presence of forcing outside of
diurnal heating does suggest activity may continue into the
overnight periods, however this will depend on timing. Passage of
any shortwave will be followed by a period of decreased or even no
activity before the post wave subsidence moves off and the
environment becomes more favorable. Highs will be near to slightly
above climo each afternoon with lows running above climo.

Long term Thursday through Sunday
Unsettled conditions will continue through the start of next week
with weak mid-level troughing and deep moisture lingering over the
southeast. Piedmont trough and sea breeze will act as triggers while
weakly divergent flow aloft aids upward motion.

-scattered showers and thunderstorms each afternoon and evening. At
this point severe weather does not appear to be a concern.

-high temperatures near climo with low temperatures above climo.

Aviation 13z Monday through Friday
After ifr stratus dissipates in the next hour or two at flo, expect
vfr conditions to dominate through the remainder of the valid taf
period. A lingering surface trough inland and sea breeze nearer the
coast may spawn isolated storms this afternoon. Coverage should be
limited so this is accounted for in the terminals with vcts.

Extended... MainlyVFR each day. Exceptions... Brief MVFR ifr from
tstorms each aftn thru early evening... And MVFR ifr from early
morning fog and or low stratus each day mainly for the inland
terminals.

Marine
Today thru tue:
flow around bermuda high will dominate the ssw-sw winds this
period. The sfc pg will remain semi-tightened supporting wind
speeds of 10 to occasionally 15 kt. The hier end of this range
more likely will occur during the afternoon and early evening,
within 10 nm, of both days due to the development of the sea
breeze and its push inland. Significant seas will hold around 3
ft thruout the period with wind waves at 3 to 5 second periods
dominating the aftn thru mid-evening and the 8 to 9 second
period SE swell dominating at all other times.

Tue night thru fri:
southwest flow will continue through Fri with bermuda high sitting
offshore. Changes to the gradient, as the piedmont trough
strengthens and then weakens, will lead to southwest flow around 10
kt each morning increasing to a solid 15 kt each afternoon and
evening before dropping closer to 10 kt overnight. Seas follow a
similar to trend to winds wed, building to around 3 ft in the
afternoon before dropping closer to 2 ft overnight. Southerly
wind wave at 4 to 5 seconds will be dominant early in the
period, but a secondary south to southeast swell around 9
seconds will help increase seas Thu and Fri to 3 to 4 ft.

Ilm watches warnings advisories
Sc... None.

Nc... None.

Marine... None.

Synopsis... Dch
update... Crm
near term... Dch
short term... Shk
long term... Shk
aviation... Dch
marine... Dch shk


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
NIWS1 - North Inlet-Winyah Bay Reserve, SC 5 mi108 min W 5.1 80°F 1018 hPa77°F
MROS1 - 8661070 - Springmaid Pier, SC 27 mi45 min 81°F
41029 - Capers Nearshore (CAP 2) 43 mi85 min WNW 9.7 G 12 80°F 84°F1019.3 hPa
FBIS1 - Folly Island, SC 58 mi33 min SW 4.1 G 5.1 81°F 1019.9 hPa (+1.1)74°F

Wind History for Springmaid Pier, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Georgetown County Airport , SC5 mi38 minSW 410.00 miPartly Cloudy82°F73°F74%1019.6 hPa

Link to 5 minute data for KGGE

Wind History from GGE (wind in knots)
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Last 24hrSW5SW3SW7SW6S6SW7SW5SW6SW4S3S5S4CalmCalm--CalmCalmSW5CalmCalmCalmCalmSW4SW4
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SW5SW4SW5CalmW6W4CalmSW3CalmW3
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SW7S7S5SW5CalmCalmCalmS3S3--SW4CalmCalmCalmCalmS3S6

Tide / Current Tables for Entrance, Waccamaw River, South Carolina
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Entrance
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Mon -- 12:13 AM EDT     3.82 feet High Tide
Mon -- 06:42 AM EDT     Sunrise
Mon -- 07:19 AM EDT     0.44 feet Low Tide
Mon -- 10:12 AM EDT     Moonset
Mon -- 12:28 PM EDT     3.61 feet High Tide
Mon -- 07:28 PM EDT     0.69 feet Low Tide
Mon -- 07:58 PM EDT     Sunset
Mon -- 10:30 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.83.73.42.821.30.80.50.61.42.43.23.63.63.32.82.11.510.70.81.42.33.1

Tide / Current Tables for Weymouth Plantation, Great Pee Dee River, South Carolina
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Weymouth Plantation
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Mon -- 01:04 AM EDT     3.77 feet High Tide
Mon -- 06:41 AM EDT     Sunrise
Mon -- 08:06 AM EDT     0.47 feet Low Tide
Mon -- 10:12 AM EDT     Moonset
Mon -- 01:19 PM EDT     3.55 feet High Tide
Mon -- 07:58 PM EDT     Sunset
Mon -- 08:15 PM EDT     0.73 feet Low Tide
Mon -- 10:29 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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3.53.83.63.22.61.91.20.70.50.71.62.53.23.53.53.22.721.410.70.91.62.5

Weather Map and Satellite Images
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GOES 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.
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Wind Forecast for Wilmington, NC (10,2,3,4)
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Ground Weather Radar Station Wilmington, NC
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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.