Tuesday, September28, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Rockville, SC

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 7:10AMSunset 7:09PM Tuesday September 28, 2021 12:45 PM EDT (16:45 UTC) Moonrise 11:09PMMoonset 1:12PM Illumination 52% 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
    EDIT      (on/off)   Help
AMZ330 Charleston Harbor- 1018 Am Edt Tue Sep 28 2021
Today..W winds 5 to 10 kt, becoming S 10 to 15 kt.
Tonight..SW winds 5 to 10 kt.
Wed..W winds 5 to 10 kt, becoming sw 10 to 15 kt in the afternoon.
Wed night..SW winds 5 to 10 kt.
Thu..N winds 5 to 10 kt, becoming se 10 to 15 kt in the afternoon.
Thu night..E winds 5 to 10 kt.
Fri..NE winds 10 to 15 kt.
Fri night..E winds 10 to 15 kt.
Sat..NE winds 10 to 15 kt.
Sat night..SE winds 10 to 15 kt. Unless otherwise noted, waves 1 foot or less. Charleston harbor water temperature 79 degrees.
AMZ300 1018 Am Edt Tue Sep 28 2021
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. High pressure will remain the dominant feature through next weekend.


7 Day Forecast for Marine Location Near Rockville, SC
   Hourly   EDIT   Help
location: 32.6, -80.29     debug


Area Discussion for - Charleston, SC
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXUS62 KCHS 281458 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 1058 AM EDT Tue Sep 28 2021

SYNOPSIS. High pressure will remain the dominant feature through next weekend.

NEAR TERM /THROUGH TONIGHT/. Today: Aloft, a broad trough extending across the Northeast to Mid- Atlantic States will be replaced by a high amplitude ridge drifting east with an axis extending across the Deep South to the Upper Midwest regions. At the sfc, a trough is expected to develop and extend across the Foothills of the Carolinas while high pressure is draped across the western Atlantic and much of the Southeast United States. Given the pattern, expect dry and sunny conditions to prevail across the region with a light west-southwest wind eventually turning more south-southwest this afternoon as inland troughing develops and a seabreeze shifts inland. The combination of sunny to mostly sunny skies and a west-northwest downsloping flow aloft should yield high temps in the mid-upper 80s, warmest across southeast Georgia.

Tonight: Clear to mostly clear skies and light/calming winds should provide favorable radiational cooling conditions. However, low temps should be a degree or two warmer than the previous night, generally ranging in the low-mid 60s inland to upper 60s/around 70 along the coast.

SHORT TERM /WEDNESDAY THROUGH FRIDAY/. An upper ridge will remain west of the area Wednesday and Thursday before weakening. A weak back door cold front is forecast to drop south into the area on Thursday before dissipating. We expect a brief period of NE winds late Thursday into Friday which will drop temps a few degrees. Moisture and forcing will be too limited to support precipitation.

LONG TERM /FRIDAY NIGHT THROUGH MONDAY/. High pressure will prevail through early next week. Despite some model differences regarding a possible storm system early next week, we are sticking with the NBM which shows dry conditions and near-normal temps.

AVIATION /15Z TUESDAY THROUGH SATURDAY/. VFR conditions are expected at CHS/JZI/SAV terminals through 12Z Wednesday.

Extended Aviation Outlook: VFR conditions will prevail.

MARINE. Today and Tonight: Broad high pressure across the western Atlantic will support a fairly weak pressure gradient across local waters, supporting winds and seas well below small craft advisory levels. In general, 5-10 kt winds from the west-southwest will veer, becoming south 10-15 kt this afternoon, highest near the coast where a seabreeze occurs. Overnight, winds will steadily decrease and return to west-southwest after midnight, remaining around 10 kt or less. Seas are expected to range around 2 ft, with the exception of a few 3 ft seas across northern South Carolina waters this evening and overnight.

Quiet conditions expected Wednesday through Sunday. A period of NE winds will occur Friday through Saturday behind a back door cold front, however wind speeds should remain below advisory criteria. Seas could increase to 5 ft over the offshore GA waters on Saturday in response to increasing NE fetch and some distant swell from Hurricane Sam.

CHS WATCHES/WARNINGS/ADVISORIES. GA . None. SC . None. MARINE . None.



NEAR TERM . DPB SHORT TERM . JRL LONG TERM . JRL AVIATION . JRL/NED MARINE . DPB/JRL


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
ACXS1 - ACE Basin Reserve, SC 9 mi60 min WSW 1.9 82°F 1019 hPa68°F
FBIS1 - Folly Island, SC 22 mi45 min SW 7 G 9.9 81°F 1018.7 hPa (-0.4)
41033 23 mi37 min SW 5.8 G 9.7 77°F 79°F1017.5 hPa
CHTS1 23 mi45 min WSW 8 G 11 83°F 79°F1018.2 hPa (-0.5)
41029 - Capers Nearshore (CAP 2) 38 mi37 min WSW 7.8 G 14 78°F 79°F1017.7 hPa
41065 38 mi57 min 79°F1 ft
FPKG1 - 8670870 - Fort Pulaski, GA 51 mi45 min 81°F 80°F1018.4 hPa (-0.7)

Wind History for Charleston, SC
(wind in knots)    EDIT      (on/off)   Help
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
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
Last
24hr
W4
G7
S3
G7
N1
G7
SE9
S10
S9
G12
SW9
G12
SW5
G8
SW6
SW4
SW4
SW4
SW5
SW4
SW4
SW2
W3
W3
W4
W4
W3
G6
W7
G10
W6
G9
W7
G10
1 day
ago
N6
N6
G9
NE3
E5
SE8
SE6
G9
SE7
S6
S6
S5
S2
SW2
SW4
SW3
SW2
W2
NW2
N2
NW3
W4
W5
NW2
NW4
W7
2 days
ago
N7
N5
N5
G10
N5
G12
NE4
G9
N8
G11
N6
NW6
N4
G7
NW3
--
W1
W2
--
--
--
W1
--
--
W1
NW4
NW5
NW4
G8
N6

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Charleston Executive Airport, SC17 mi50 minWSW 710.00 miFair82°F63°F51%1018.3 hPa
Beaufort County Airport, SC22 mi50 minWSW 410.00 miFair81°F64°F58%1018.3 hPa
Beaufort, Marine Corps Air Station, SC24 mi49 minWSW 67.00 miFair85°F65°F51%1018.2 hPa

Link to 5 minute data for KJZI

Wind History from JZI (wind in knots)
2
PM
3
PM
4
PM
5
PM
6
PM
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
Last 24hrW5S6S9S10SW7SW8SW4SW4CalmCalmCalmCalmCalmCalmW3W3W3W3W3W3W6W7W8W8
G13
1 day agoN5N43SE8S5S4CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmCalmNW3CalmCalmW5W654
2 days agoCalm66NW4NW5NW5CalmCalmCalmCalmCalmW3CalmW3CalmCalmW3CalmNW3NW3NW4N6NW6N5

Tide / Current Tables for Steamboat Landing, Steamboat Creek, South Carolina
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Steamboat Landing
Click for Map
Tue -- 02:00 AM EDT     5.31 feet High Tide
Tue -- 07:13 AM EDT     Sunrise
Tue -- 07:51 AM EDT     1.56 feet Low Tide
Tue -- 02:12 PM EDT     Moonset
Tue -- 02:35 PM EDT     6.24 feet High Tide
Tue -- 07:09 PM EDT     Sunset
Tue -- 08:40 PM EDT     2.11 feet Low Tide
Tue -- 09:58 PM EDT     Last Quarter
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
4.75.25.35.14.43.42.51.81.61.92.83.955.86.26.25.74.83.72.82.22.12.53.3

Tide / Current Tables for Lower Toogoodoo Creek, 2 mi. above entrance, South Carolina
   EDIT      (on/off)   Help   One Week of Data
Lower Toogoodoo Creek
Click for Map
Tue -- 02:40 AM EDT     5.95 feet High Tide
Tue -- 07:13 AM EDT     Sunrise
Tue -- 08:14 AM EDT     1.78 feet Low Tide
Tue -- 02:12 PM EDT     Moonset
Tue -- 03:15 PM EDT     7.00 feet High Tide
Tue -- 07:09 PM EDT     Sunset
Tue -- 09:03 PM EDT     2.40 feet Low Tide
Tue -- 09:58 PM EDT     Last Quarter
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
4.95.55.95.95.54.53.32.31.81.92.73.8566.776.864.83.62.82.42.63.3

Weather Map
       (on/off)   Help Weather Map
wmap_A
GEOS Local Image of    EDIT
NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.