Tuesday, May21, 2019 L-36.com


Marine Weather and Tides
Charleston, 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 6:15AMSunset 8:16PM Tuesday May 21, 2019 6:38 PM EDT (22:38 UTC) Moonrise 10:08PMMoonset 7:34AM Illumination 91% Phase: Waning Gibbous; Moon at 18 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- 331 Pm Edt Tue May 21 2019
Tonight..S winds 10 to 15 kt, diminishing to 5 to 10 kt late this evening.
Wed..SE winds 5 kt, becoming E in the afternoon.
Wed night..SE winds 5 to 10 kt.
Thu..SE winds 5 to 10 kt.
Thu night..S winds 5 to 10 kt.
Fri..SW winds 5 to 10 kt.
Fri night..SW winds 5 to 10 kt.
Sat..SW winds 5 kt.
Sat night..S winds 5 kt.
Sun..SW winds 5 kt.
Sun night..SW winds 5 to 10 kt. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 79 degrees.
AMZ300 331 Pm Edt Tue May 21 2019
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will build over the region this week and will linger into early next week.


7 Day Forecast for Marine Location Near Charleston, SC
   Hourly   EDIT   Help
location: 32.78, -79.93     debug


Area Discussion for - Charleston, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxus62 kchs 212007
afdchs
area forecast discussion
national weather service charleston sc
407 pm edt Tue may 21 2019

Synopsis
High pressure will build over the region this week and will
linger into early next week.

Near term until 6 am Wednesday morning
Until sunset: observations show the sea breeze slowly moving
inland. Isolated showers are forming along it. This matches up
well with the cams, which has them continuing for the next hour
or two, then dissipating around sunset. There is minimal
instability in place with mlcapes struggling to reach 500 j kg.

This along with plenty of dry air aloft will make it hard for
much to form.

Tonight: a mid-level ridge will be over the region. At the
surface, a weak backdoor cold front is expected to maybe reach
the sc pee dee area late. But it won't make it to our area. This
front could bring some clouds to our northernmost counties
late. Otherwise, conditions will be dry. Lows will be in the
upper 60s inland and the lower to mid 70s at the coast.

Short term 6 am Wednesday morning through Friday
Short term guidance indicates the center of a h5 ridge will settle
over the southeast u.S. Wednesday through Friday. H85 temperatures
on Wednesday are forecast to range from 16 to 18c, warming to around
20c by Friday. On Wednesday, the temperature forecast will be
complicated by the position of a old front, likely dissipating over
the lowcountry Wednesday afternoon. In addition, a sfc ridge will
build south from high pressure centered off the mid-atlantic states.

Flow around the high should result in sfc winds to turn from the se,
likely supporting a sea breeze Wednesday afternoon. The passage of
the sea breeze and weak instability should support a few showers
along and west of the breeze. This scenario is supported by the
majority of the cams, I will highlight the region with schc pops for
showers. High temperatures are forecast to range from the mid to
upper 80s across the chs tri-county to the mid 90s across SE ga. On
Thursday, sfc high pressure is expected to shift over the western
atlantic as the mid-level strengthens over the cwa. The llvl onshore
flow and ridging aloft should maintain sbcin through the day.

Thursday should be hot and dry, with temperatures 1-2 degrees warmer
than Wednesday. Llvl thicknesses should increase across the region
on Friday, maintaining sbcin through the daylight hours. Using a
blend of mos, high temperatures are forecast to range from the low
to mid 90s along the coast to the upper 90s across the inland
counties. Afternoon dewpoints may mix into the lower to mid 60s
across the inland counties, with near 70 along the coast. The
combination of the temperatures and dewpoints are expected to result
in heat index values around 100 degrees west of the coastal
counties.

Long term Friday night through Tuesday
The hot and dry pattern will linger this weekend into next week. The
h5 ridge is forecast to remain centered over the southeast u.S.

Through this weekend, with the ridge shifting south over the gulf of
mexico early next week. However, a broad and strong h7 ridge will
remain centered over the deep south, with west and downslope h85
winds Sunday night into Tuesday. This pattern is forecast to
maintain h85 temps around 20c and 1000-850mb thicknesses above
1430m. Using a blend wpc and mos, high temperatures are forecast to
range from the mid to upper 90s across the coastal counties with low
100s across the inland counties. The high temperature records for
mon and tues may range very close to record highs, see climate
section below. Heat index values are forecast to reach heat advisory
criteria (105 degrees) across portions of SE ga sat-tues, within 1-2
degrees of criteria elsewhere across the inland counties. In fact,
the climate prediction center has highlighted the forecast area with
a high risk of excessive heat for 5 28 - 5 30. The heat wave
potential will be highlighted in the hwo.

Aviation 20z Tuesday through Sunday
18z tafs:VFR. There is a low probability of showers bringing
brief impacts to the TAF sites through this evening.

Extended aviation outlook:VFR.

Marine
Tonight: a weak pressure gradient will bring generally south winds
15 kt or less. Seas will be about 2 ft.

Wednesday through Sunday: high pressure will remain over the marine
zones through this weekend. Conditions are forecast to remain below
small craft advisory criteria. Seas through the period should range
from 1-3 feet, with 1-2 feet common Saturday. Winds are expected to
remain generally from the south around 10 kts.

Climate
Records for 05-27
station record high year(s)
------- ----------- -------
kchs 98 1989
kcxm 95 1962, 1926
ksav 98 1989, 1962
records for 05-28
station record high year(s)
------- ----------- -------
kchs 97 1967, 1964
kcxm 93 2000
ksav 96 1964, 1898

Chs watches warnings advisories
Ga... None.

Sc... None.

Marine... None.

Near term...

short term...

long term... Dpb
aviation...

marine...

climate...



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 0 mi45 min S 7 G 11 83°F 80°F1013.4 hPa
FBIS1 - Folly Island, SC 7 mi39 min S 9.9 G 12 80°F 1014.1 hPa (-0.3)76°F
41029 - Capers Nearshore (CAP 2) 16 mi31 min SSW 12 G 18 78°F 78°F1013.4 hPa
ACXS1 - ACE Basin Reserve, SC 32 mi114 min S 1.9 86°F 1013 hPa75°F
41004 - EDISTO - 41 NM Southeast of Charleston, SC 48 mi39 min SSW 12 G 14 78°F1014.3 hPa (-0.7)

Wind History for Charleston, SC
(wind in knots)    EDIT      (on/off)   Help
7
PM
8
PM
9
PM
10
PM
11
PM
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
Last
24hr
S10
G14
S9
G12
S8
G11
S8
G11
S6
G10
S6
SW5
SW4
G9
SW6
G10
SW5
SW6
G9
SW5
SW4
G7
SW7
G10
SW8
G11
SW8
SW4
G9
SW4
S11
S11
S10
S12
S8
G11
S7
G11
1 day
ago
S10
G13
S10
S10
S9
G13
S9
S8
S7
S7
S3
S5
S3
S5
G8
S3
SW4
SW8
G11
S8
S6
G10
S11
S11
G15
S10
S10
S12
S10
G13
S11
G14
2 days
ago
S10
G13
S9
G14
S7
G10
S8
S6
G9
S7
G10
SW5
S6
G9
S4
G8
S4
SW4
S2
S3
S3
S10
G13
S9
G13
S11
G15
S12
G15
S10
G13
S10
G14
S11
G15
S11
G15
S12
S9

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston Executive Airport, SC7 mi44 minSSE 99.00 miFair84°F75°F74%1013.2 hPa
Charleston, Charleston Air Force Base, SC10 mi1.7 hrsSE 1210.00 miPartly Cloudy88°F69°F54%1012.6 hPa
Mount Pleasant Regional-Faison Field, SC11 mi44 minSSE 78.00 miFair84°F73°F70%1013.2 hPa

Wind History from JZI (wind in knots)
7
PM
8
PM
9
PM
10
PM
11
PM
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
Last 24hrS9S11S6S7S7S7S7S7S5SW5SW6S4CalmCalmSW5W9SW6W7S7S10S11S10S11S9
1 day agoSE8SE7
G12
S6SE7S76S6SE4CalmCalmCalmCalmS5CalmSW7S8S11S9S9
G15
S11S11S11S14S10
2 days agoS10S8
G14
S10S6S6S4S5S4S5S5CalmCalmCalmCalmS6S8S9S11S12S12SE9
G15
SE9SE7
G13
S8
G15

Tide / Current Tables for Charleston, South Carolina
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Charleston
Click for Map
Tue -- 04:36 AM EDT     0.00 feet Low Tide
Tue -- 06:17 AM EDT     Sunrise
Tue -- 08:34 AM EDT     Moonset
Tue -- 10:39 AM EDT     4.90 feet High Tide
Tue -- 04:35 PM EDT     0.09 feet Low Tide
Tue -- 08:15 PM EDT     Sunset
Tue -- 11:07 PM EDT     Moonrise
Tue -- 11:08 PM EDT     5.99 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
5.44.12.51.10.20.10.823.24.24.84.94.33.32.110.20.20.92.23.54.75.66

Tide / Current Tables for Charleston Harbor Entrance, South Carolina Current
   EDIT      (on/off)   Help   One Week of Data
Charleston Harbor Entrance
Click for Map
Tue -- 02:04 AM EDT     -2.82 knots Max Ebb
Tue -- 05:10 AM EDT     0.00 knots Slack
Tue -- 06:17 AM EDT     Sunrise
Tue -- 07:14 AM EDT     1.59 knots Max Flood
Tue -- 08:33 AM EDT     Moonset
Tue -- 10:55 AM EDT     -0.00 knots Slack
Tue -- 02:11 PM EDT     -2.05 knots Max Ebb
Tue -- 05:09 PM EDT     0.00 knots Slack
Tue -- 07:38 PM EDT     1.63 knots Max Flood
Tue -- 08:15 PM EDT     Sunset
Tue -- 11:07 PM EDT     Moonrise
Tue -- 11:35 PM EDT     -0.00 knots Slack
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
-1.3-2.3-2.8-2.5-1.5-0.211.61.41.10.7-0.1-0.9-1.7-2-1.8-1.1-0.10.81.51.61.41.10.5

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 (18,4,5,8)
      (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.