Saturday, September21, 2019 L-36.com


Marine Weather and Tides
Meggett, SC

Version 3.4
NOTICE
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 7:05AMSunset 7:19PM Saturday September 21, 2019 11:27 AM EDT (15:27 UTC) Moonrise 11:17PMMoonset 12:52PM Illumination 50% Phase: Third Quarter Moon; Moon at 22 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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AMZ330 Charleston Harbor- 1030 Am Edt Sat Sep 21 2019
Rest of today..E winds 5 to 10 kt.
Tonight..E winds 5 to 10 kt.
Sun..E winds 5 to 10 kt.
Sun night..SE winds 5 to 10 kt, becoming S after midnight.
Mon..NW winds 5 kt, becoming S in the afternoon.
Mon night..SW winds 5 to 10 kt.
Tue..SW winds 5 to 10 kt.
Tue night..S winds 5 to 10 kt.
Wed..S winds 5 to 10 kt.
Wed night..S winds 10 kt. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 80 degrees.
AMZ300 1030 Am Edt Sat Sep 21 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail into early next week. A weak cold front should move into the area toward the middle of next week before lingering through late week.


7 Day Forecast for Marine Location Near Meggett, SC
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location: 32.7, -80.28     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 211459
afdchs
area forecast discussion
national weather service charleston sc
1059 am edt Sat sep 21 2019

Synopsis
High pressure will prevail into early next week. A weak cold
front should move into the area toward the middle of next week
before lingering through late week.

Near term through tonight
Today: aloft, a ridge of high pressure will remain centered across
the deep south and southeast united states. At the sfc, high
pressure centered along the carolina coast will remain the dominant
weather feature across southeast south carolina and southeast
georgia. The pattern will support dry conditions over all areas and
slightly warmer temps than the previous day as strong sfc heating
occurs due to a full day of sunshine. 1000-850mb thickness levels
support high temps in the mid upper 80s, warmest well inland.

Tonight: winds are forecast to decouple by mid to late evening, with
light to calm conditions expected through the rest of the night.

Temperatures should cool steadily tonight, given a mostly clear sky
and light sfc winds. Low temperatures are forecast to range from the
low 60s inland to near 70 along the beaches.

Short term Sunday through Tuesday
High confidence this period. Deep high pressure will give way to a
weak cold front which looks to approach Monday night before likely
stalling over or near the area into Tuesday. Meanwhile, an upper
trough will be pushing offshore helping to keep tropical cyclone
jerry well off the coast. Not expecting any appreciable rain chances
given the dry air and lack of significant forcing. Temperatures will
generally warm through the period staying mainly above normal.

Long term Tuesday night through Friday
Moderate confidence this period. Medium range guidance is in decent
agreement indicating tropical cyclone jerry will be well offshore
and moving even farther away Tuesday night while a weak cold front
pushes into the area. The front should stall out and linger over or
near the area through the week. Given the relatively dry air and
lack of significant forcing we are not expecting any significant
rainfall. Temperatures will remain above normal with heat indices
back near 100 degrees across ga Wednesday through Friday.

Aviation 15z Saturday through Wednesday
Vfr conditions are expected at both chs and sav terminals through
12z Sunday.

Extended aviation outlook: no significant concerns through
Thursday.

Marine
Today and tonight: sfc high pressure will remain centered across
eastern north carolina today and tonight. East winds will persist
along the southern edge of the high, peaking no higher than 15 kts
across most coastal waters. However, a few wind gusts up to 20 kts
are possible across offshore georgia waters late this morning into
early afternoon where the pressure gradient is strongest. Seas will
range between 2-4 ft in nearshore waters and 5-7 ft in offshore
georgia waters, but should slowly subside through the day. By
tonight, seas should subside to 2-3 ft across nearshore waters and
4-6 ft across offshore georgia waters. A small craft advisory
remains in effect for outer georgia waters until Sunday morning.

Sunday through Thursday: no significant concerns as a weak cold
front moves into the area and stalls. The resulting weak pressure
gradient will lead to winds and seas staying below advisory levels
despite some possible swell energy from jerry.

Rip currents: a high risk of rip currents will persist today
given swell periods up to 14 seconds at the beaches. An
elevated risk for rip currents will likely continue into early
next week.

Tides coastal flooding
Tides should become elevated next week, mainly due to the approach
of a new moon and lunar perigee on sept 28th. Tides levels could
result in minor coastal flooding during mid to late next week.

Chs watches warnings advisories
Ga... High risk for rip currents until 8 pm edt this evening for gaz117-
119-139-141.

Sc... High risk for rip currents until 8 pm edt this evening for
scz048>051.

Marine... Small craft advisory until 8 am edt Sunday for amz374.

Near term... Dpb
short term... Rjb
long term... Rjb
aviation... Dpb rjb
marine... Dpb rjb
tides coastal flooding...



Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ACXS1 - ACE Basin Reserve, SC 13 mi102 min NNE 2.9 76°F 1027 hPa62°F
CHTS1 20 mi63 min NNE 6 G 8.9 80°F 80°F1026.8 hPa
FBIS1 - Folly Island, SC 21 mi87 min NNE 8.9 G 9.9 76°F 1027.1 hPa (+1.5)61°F
41033 30 mi79 min ENE 14 G 18 77°F 79°F1027.4 hPa
41029 - Capers Nearshore (CAP 2) 35 mi79 min ENE 12 G 16 76°F 79°F1026.9 hPa
FPKG1 - 8670870 - Fort Pulaski, GA 57 mi63 min ENE 11 G 15 77°F 80°F1026.7 hPa

Wind History for Charleston, SC
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston Executive Airport, SC15 mi32 minVar 69.00 miFair81°F60°F51%1026.7 hPa
Charleston, Charleston Air Force Base, SC20 mi91 minENE 710.00 miA Few Clouds77°F59°F54%1026.5 hPa
Walterboro Lowcountry Regional Airport, SC24 mi32 minENE 610.00 miFair79°F55°F45%1027.4 hPa

Link to 5 minute data for KJZI

Wind History from JZI (wind in knots)
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--E6E5NE4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmN5NE5NE4
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Tide / Current Tables for Lower Toogoodoo Creek, 2 mi. above entrance, South Carolina
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Lower Toogoodoo Creek
Click for Map
Sat -- 02:14 AM EDT     6.35 feet High Tide
Sat -- 07:08 AM EDT     Sunrise
Sat -- 08:04 AM EDT     1.27 feet Low Tide
Sat -- 01:51 PM EDT     Moonset
Sat -- 03:00 PM EDT     7.46 feet High Tide
Sat -- 07:19 PM EDT     Sunset
Sat -- 08:53 PM EDT     1.97 feet Low Tide
Sat -- 10:43 PM EDT     Last Quarter
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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5.366.36.25.44.12.71.71.31.52.43.85.36.57.27.57.164.53.22.322.33.2

Tide / Current Tables for Charleston Harbor Entrance, South Carolina Current
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Charleston Harbor Entrance
Click for Map
Sat -- 01:12 AM EDT     -0.00 knots Slack
Sat -- 04:43 AM EDT     -1.76 knots Max Ebb
Sat -- 07:06 AM EDT     Sunrise
Sat -- 07:47 AM EDT     0.00 knots Slack
Sat -- 10:44 AM EDT     1.52 knots Max Flood
Sat -- 01:50 PM EDT     Moonset
Sat -- 02:12 PM EDT     -0.00 knots Slack
Sat -- 05:39 PM EDT     -1.92 knots Max Ebb
Sat -- 07:17 PM EDT     Sunset
Sat -- 08:53 PM EDT     0.00 knots Slack
Sat -- 10:43 PM EDT     Last Quarter
Sat -- 11:14 PM EDT     1.18 knots Max Flood
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.60.1-0.4-1.1-1.6-1.7-1.4-0.70.20.81.41.51.10.60.1-0.6-1.4-1.8-1.9-1.5-0.70.10.71.2

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.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Charleston, SC (11,2,3,4)
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Ground Weather Radar Station Charleston, SC
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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.