Friday, March24, 2017 L-36.com


Marine Weather and Tides
Kiawah Island, 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 7:15AMSunset 7:35PM Friday March 24, 2017 6:01 PM EDT (22:01 UTC) Moonrise 4:04AMMoonset 3:13PM Illumination 8% Phase: Waning Crescent; Moon at 27 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- 327 Pm Edt Fri Mar 24 2017
Tonight..SE winds 10 kt...diminishing to 5 to 10 kt.
Sat..SE winds 5 to 10 kt.
Sat night..SE winds 5 to 10 kt.
Sun..SE winds 5 kt...becoming S in the afternoon. A slight chance of showers and tstms in the afternoon.
Sun night..S winds 5 to 10 kt. A slight chance of showers and tstms in the evening.
Mon..S winds 5 to 10 kt. A slight chance of showers and tstms.
Mon night..S winds 5 to 10 kt. A slight chance of showers and tstms.
Tue..SW winds 5 to 10 kt. A chance of showers and tstms.
Tue night..SW winds 5 to 10 kt.
Wed..W winds 5 kt.
Wed night..S winds around 5 kt. Mariners are reminded that winds and waves can be higher in and near tstms. Unless otherwise noted...waves 1 foot or less. Charleston harbor water temperature...60 degrees.
AMZ300 327 Pm Edt Fri Mar 24 2017
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail this weekend. A weak cold front should stall over the area during the middle of next week, then shift back north as a warm front late in the week.

7 Day Forecast for Marine Location Near Kiawah Island, SC
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location: 32.59, -80.11     debug


Area Discussion for - Charleston, SC
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Fxus62 kchs 241947
afdchs
area forecast discussion
national weather service charleston sc
347 pm edt Fri mar 24 2017

Synopsis
High pressure will prevail this weekend. A weak cold front should
stall over the area during the middle of next week, then shift
back north as a warm front late in the week.

Near term /until 6 am Saturday morning/
This evening and tonight: sfc high pressure centered to the northeast
will slide further east over the western atlantic while a low pressure
system advances east over the central united states. Aloft, a high
amplitude ridge of high pressure will extend across the southeast
for much of the night, dominating the weather pattern with dry/mild
conditions. Soundings suggest high clouds will develop over the area
late, well ahead of the low pressure system to the west. The pattern
along with increasing high clouds late, suggests temps will remain
more mild tonight than the previous night. In general, temps should
dip into the low/mid 50s away from the immediate coast.

Short term /6 am Saturday morning through Monday/
The region will remain along the western fringes of atlantic high
pressure through the period. Weak shortwave energy and the approach
of a weakening cold front could support scattered showers/tstms
Sunday afternoon with another round of convection possible Monday
afternoon ahead of the resultant sea breeze circulation. Pops will
be capped at 30-40% inland both days with coastal pops limited to
20%. Highs away from the beaches will warm into the mid-upper 70s
Saturday, the lower 80s Sunday with lower-mid 80s Monday. Lows will
range from the mid-upper 50s inland with lower 60s at the coast each
night.

Long term /Monday night through Friday/
A weakening cold front looks to approach the area mid week before
stalling and eventually shifting back northward as a warm front late
in the period. Some showers and thunderstorms are expected, mainly
mon night into Tuesday and again Friday as a shortwave energy moves
through the area. No significant rainfall and/or severe weather
anticipated at this time however.

Aviation /20z Friday through Wednesday/
Vfr conditions are expected at both chs and sav terminals through
18z Saturday. Wind gusts up to 15-20 kt are possible into early
evening hours at both terminals.

Extended aviation outlook: there are no impact- level concerns
with a >30% probability of occurrence.

Marine
This evening and tonight: a weak coastal trough will remain well off
the southeast coast this evening while high pressure centered to the
northeast shifts further offshore. The pattern will result in a
steady gradient over much of the coastal waters overnight with
winds/seas that remain below small craft advisory levels. However,
some lingering 6 ft seas beyond 40 nm in offshore georgia waters
will allow a small craft advisory to continue until 6 pm this
evening. In general, southeast winds will peak between 10-15 kts
early while seas are no higher than 3-4 ft nearshore and 4-6 ft
offshore early tonight.

Saturday through Wednesday: there are no concerns with atlantic
high pressure generally in control until a weakening cold front
moves into the area Wednesday. Seas look to be near 6 feet along the
eastern portions of the georgia offshore leg which will likely
necessitate a small craft advisory for that zone. Winds will remain
less than 20 kt through the period.

Chs watches/warnings/advisories
Ga... None.

Sc... None.

Marine... Small craft advisory until 6 pm edt this evening for amz374.

Near term... Dpb
short term... St
long term... Rjb
aviation... Dpb/st
marine... Dpb/st


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
FBIS1 - Folly Island, SC 13 mi62 min E 6 G 7 63°F 1030.1 hPa (-2.0)59°F
CHTS1 16 mi44 min ESE 6 G 7 65°F 62°F1029.3 hPa
ACXS1 - ACE Basin Reserve, SC 18 mi77 min ESE 5.1 72°F 1029 hPa50°F
41033 27 mi54 min ENE 5.8 G 7.8 62°F 61°F1028.6 hPa
41029 - Capers Nearshore (CAP 2) 30 mi54 min ENE 5.8 G 7.8 61°F 1029.1 hPa
41004 - EDISTO - 41 NM Southeast of Charleston, SC 54 mi72 min SE 14 G 16 69°F 72°F4 ft1029.1 hPa (-1.8)52°F

Wind History for Charleston, SC
(wind in knots)    EDIT      (on/off)   Help
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NE19
G23
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G21
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G12
NE9
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G12
NE7
N5
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G6
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N1
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G7
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1 day
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E15
NE14
NE11
G15
NE11
G15
NE12
NE9
G12
NE14
G17
NE19
G23
NE19
G26
NE14
G19
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NE14
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N11
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G15
N12
G15
NE21
G26
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G30
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NE17
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NE19
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G21
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SW9
G15
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G15
SW10
G16
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G14
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G16
SW7
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G9
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G10
N5
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G9
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G10
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G16
NW12
G16
N9
G13
N10
G13
N7
G12
N8
N7
G10
NE16
E15

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston Executive Airport, SC10 mi67 minE 910.00 miPartly Cloudy70°F51°F53%1029.5 hPa
Charleston, Charleston Air Force Base, SC23 mi66 minSSE 1310.00 miA Few Clouds74°F46°F38%1028.9 hPa

Wind History from JZI (wind in knots)
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Last 24hrNE14
G20
NE10
G18
NE9
G18
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G14
NE7
G13
NE8
G13
NE7NE8NE7NE4CalmCalmCalmCalmCalmN3E6E9E85
G11
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G14
E8
G13
E6
G12
SE6
1 day agoE12E7
G13
NE8NE11NE7
G13
NE8NE10
G16
NE18
G23
NE17
G24
NE15NE16
G21
NE11
G19
NE15
G20
NE10
G17
N7
G14
N10NE14
G27
NE19NE17NE19NE15
G20
NE14
G21
NE11
G19
E18
2 days agoS10SW9S9SW13
G21
SW10
G16
SW9
G17
SW7W22
G29
CalmSW4S9SW5CalmCalmW8W12N9
G14
N9
G16
N11N11N12
G17
E11E14
G21
E14

Tide / Current Tables for Kiawah River Bridge, South Carolina
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Kiawah River Bridge
Click for Map
Fri -- 05:04 AM EDT     Moonrise
Fri -- 06:05 AM EDT     5.63 feet High Tide
Fri -- 07:18 AM EDT     Sunrise
Fri -- 12:16 PM EDT     0.33 feet Low Tide
Fri -- 04:12 PM EDT     Moonset
Fri -- 06:21 PM EDT     5.33 feet High Tide
Fri -- 07:35 PM EDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.51.12.23.54.65.35.65.44.53.32.110.40.51.52.73.94.85.35.24.53.42.11

Tide / Current Tables for Charleston Harbor Entrance, South Carolina Current
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Charleston Harbor Entrance
Click for Map
Fri -- 12:11 AM EDT     0.00 knots Slack
Fri -- 02:35 AM EDT     1.36 knots Max Flood
Fri -- 05:03 AM EDT     Moonrise
Fri -- 06:27 AM EDT     -0.00 knots Slack
Fri -- 07:17 AM EDT     Sunrise
Fri -- 09:44 AM EDT     -2.14 knots Max Ebb
Fri -- 12:47 PM EDT     0.00 knots Slack
Fri -- 02:58 PM EDT     1.47 knots Max Flood
Fri -- 04:11 PM EDT     Moonset
Fri -- 06:35 PM EDT     -0.00 knots Slack
Fri -- 07:34 PM EDT     Sunset
Fri -- 09:57 PM EDT     -2.02 knots Max Ebb
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.10.61.31.31.10.90.4-0.5-1.3-2-2.1-1.6-0.80.21.11.51.20.90.4-0.4-1.2-1.8-2-1.7

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

GOES Local Image of Southeast    EDIT
Geos

Wind Forecast for Charleston, SC (18,4,5,8)
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Ground Weather Radar Station Charleston, SC
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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.