Monday, April22, 2019 L-36.com


Marine Weather and Tides
Sullivan's Island, SC

Version 3.4
What's New / NOTES
10/6/2018 Colors of tide XTide graphs changed to emphasize that they were upgraded. See next note. Comments welcome.
10/4/2018 I have fixed XTide and updated the harmonic files. There were some name changes so you might have to click EDIT to find the new station name.

Sunrise 6:40AMSunset 7:55PM Monday April 22, 2019 12:10 AM EDT (04:10 UTC) Moonrise 10:28PMMoonset 8:09AM Illumination 93% Phase: Waning Gibbous; Moon at 17 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
    EDIT      (on/off)   Help
AMZ330 Charleston Harbor- 1208 Am Edt Mon Apr 22 2019
Rest of tonight..Variable winds 5 kt or less.
Mon..NW winds 5 kt, becoming S in the afternoon.
Mon night..SW winds 5 to 10 kt.
Tue..W winds 5 kt, becoming S in the afternoon.
Tue night..SW winds 5 to 10 kt.
Wed..SW winds 5 to 10 kt, increasing to 10 to 15 kt with gusts to 20 kt in the afternoon.
Wed night..SW winds 10 to 15 kt with gusts to 20 kt, diminishing to 5 to 10 kt after midnight.
Thu..SW winds 10 to 15 kt.
Thu night..SW winds 10 to 15 kt. A slight chance of showers and tstms.
Fri..SW winds 5 to 10 kt. A chance of showers and tstms.
Fri night..NW winds 5 to 10 kt. A chance of showers with a slight chance of tstms. Mariners are reminded that winds and waves higher in and near tstms. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 68 degrees.
AMZ300 1208 Am Edt Mon Apr 22 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will prevail with dry weather through Thursday. A storm system will then bring unsettled weather late in the week.


7 Day Forecast for Marine Location Near Sullivan's Island, SC
   Hourly   EDIT   Help
location: 32.77, -79.91     debug


Area Discussion for - Charleston, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kchs 220051
afdchs
area forecast discussion
national weather service charleston sc
851 pm edt Sun apr 21 2019

Synopsis
High pressure will prevail with dry weather through Thursday. A
storm system will then bring unsettled weather late in the
week.

Near term until 6 am Monday morning
Quiet weather in store overnight as deep layered low pressure
lingers along off the mid atlantic coast while a northwest flow
aloft regime remains anchored over our entire forecast area.

Clear skies and calm to light winds have set the stage for
an excellent radiational cooling night. Temps should make it
down to the mid-upper 40s inland from u.S.17. But with just a
tad of a breeze near and along the coast, min temps in the
middle 50s will be more common for these locations. The mid-
evening forecast had only a few minor initialization
adjustments.

Short term 6 am Monday morning through Wednesday
High confidence this period with no significant weather expected.

High pressure across the area Tuesday will shift offshore as a lee-
side trough sets up inland toward mid week. Temperatures will warm
through the period as a southerly return flow sets up, staying
mainly above normal through the period.

Long term Wednesday night through Sunday
High pressure will shift further offshore Wednesday night into
Thursday as a cold front approaches from the north and a storm
system approaches from the west. The storm system with its
associated cold front is expected to move through the region on
Friday, bringing showers and cooler temperatures. Saturday, the
models differ on whether it will be dry or remnant showers will
persist. Since most of the models lean towards it being dry, we
trended our forecast in that direction.

Aviation 01z Monday through Friday
Vfr at ksav kchs through 00z Tuesday.

Extended aviation outlook:VFR.

Marine
Tonight: we have updated our forecast to indicate light and
variable winds in the chs harbor, while atlantic waters
continue to see diminishing offshore flow with time. Most of our
near-shore waters will see speeds 10 kt or less, while 10-15 kt
flow is more likely beyond 20 nm off the coast. Seas around 2
ft near shore and closer to 3-4 ft out near the gulf stream.

Monday through Friday: high pressure will prevail with no
significant concerns, although the pressure gradient will increase
mid to late week due to an inland trough and then a cold front which
will lead to slightly increasing winds seas. The strongest winds
will generally be near the coast each afternoon due to the sea
breeze, possibly nearing advisory levels in charleston harbor
starting Wednesday.

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term...

short term...

long term...

aviation...

marine...



Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CHTS1 1 mi52 min NE 5.1 G 6 62°F 68°F1021.6 hPa
FBIS1 - Folly Island, SC 6 mi130 min NNE 4.1 G 5.1 64°F 1021.5 hPa (+2.1)46°F
41029 - Capers Nearshore (CAP 2) 15 mi62 min ENE 3.9 G 7.8 63°F 67°F1021.2 hPa
ACXS1 - ACE Basin Reserve, SC 32 mi85 min Calm 53°F 1021 hPa50°F
41004 - EDISTO - 41 NM Southeast of Charleston, SC 47 mi50 min NNW 7.8 G 9.7 71°F1021.7 hPa

Wind History for Charleston, SC
(wind in knots)    EDIT      (on/off)   Help
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
Last
24hr
W6
G11
W5
NW6
W4
W4
SW3
NW5
G9
W5
W2
NW4
G7
NW11
G15
NW4
G10
W3
G8
NW7
G15
NW10
G18
NW6
G14
NW9
G13
NW10
G14
NW4
G11
NW6
G10
NW3
NE4
NE3
NE4
1 day
ago
W11
G26
W11
G19
W4
G10
SW5
G11
SW7
G10
SW9
G12
SW6
G11
SW6
G9
SW7
G10
SW7
G13
SW9
G17
SW15
G21
SW13
G20
SW18
G26
SW12
G21
SW14
G22
SW12
G24
W9
G16
W7
G11
W5
G8
NW3
NW5
G11
NW7
G13
W8
G12
2 days
ago
SE15
SE15
G20
S12
G19
S13
G19
S12
G17
S12
G21
S16
G23
S22
G30
S23
G30
S24
G30
S14
G43
S15
G25
S13
G23
S17
S18
G25
S17
G22
S15
G21
S14
G20
SW11
G16

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston Executive Airport, SC7 mi15 minN 09.00 miFair50°F48°F94%1021.7 hPa
Mount Pleasant Regional-Faison Field, SC11 mi35 minN 010.00 miFair50°F48°F94%1021.7 hPa
Charleston, Charleston Air Force Base, SC12 mi74 minN 010.00 miFair53°F46°F80%1021.2 hPa

Wind History from JZI (wind in knots)
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
Last 24hrW4CalmCalmCalmCalmW5CalmCalmSW3W8W134
G12
W8W10
G16
W11W10NW7
G14
NW9W8NW5CalmCalmCalmCalm
1 day agoW13
G22
W10SW8
G14
SW6SW10
G18
SW8
G17
CalmSW4SW8W9
G18
SW12SW17
G24
SW16
G28
SW16
G24
SW13
G21
SW12
G24
W16
G23
SW9SW4SW3CalmNW5NW8W6
2 days agoS8S6S7S8SE8
G16
SE12
G20
S16
G23
S14S13
G26
S10S18S21
G29
S19
G31
S19
G28
S20
G29
S14S14
G21
S13S18
G23
S17
G22
S17
G25
S19
G26
S14
G23
SW12
G18

Tide / Current Tables for Charleston, South Carolina
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Charleston
Click for Map
Mon -- 05:00 AM EDT     -0.19 feet Low Tide
Mon -- 06:42 AM EDT     Sunrise
Mon -- 09:09 AM EDT     Moonset
Mon -- 11:06 AM EDT     5.19 feet High Tide
Mon -- 05:04 PM EDT     -0.05 feet Low Tide
Mon -- 07:54 PM EDT     Sunset
Mon -- 11:28 PM EDT     Moonrise
Mon -- 11:36 PM EDT     6.08 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
5.94.73.11.50.3-0.20.31.42.73.94.85.24.942.81.50.4-00.31.42.84.25.36

Tide / Current Tables for Charleston Harbor Entrance, South Carolina Current
   EDIT      (on/off)   Help   One Week of Data
Charleston Harbor Entrance
Click for Map
Mon -- 02:29 AM EDT     -2.96 knots Max Ebb
Mon -- 05:33 AM EDT     0.00 knots Slack
Mon -- 06:42 AM EDT     Sunrise
Mon -- 07:43 AM EDT     1.75 knots Max Flood
Mon -- 09:09 AM EDT     Moonset
Mon -- 11:26 AM EDT     -0.00 knots Slack
Mon -- 02:38 PM EDT     -2.23 knots Max Ebb
Mon -- 05:38 PM EDT     0.00 knots Slack
Mon -- 07:54 PM EDT     Sunset
Mon -- 08:08 PM EDT     1.72 knots Max Flood
Mon -- 11:27 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
-0.9-2.1-2.8-2.8-2-0.70.61.51.71.410.4-0.6-1.5-2.1-2.2-1.6-0.70.41.31.71.61.30.9

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_A
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for Charleston, SC (0,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Charleston, SC
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.