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Marine Weather and Tides Meggett, SC Version 3.4

NOTICE 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.

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Sunrise 6:41AM

Sunset 6:20PM

Thursday March 4, 2021 4:29 PM EST (21:29 UTC)

Moonrise 12:00AM

Moonset 10:18AM

Illumination 64%

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.

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7 Day Forecast for Marine Location Near Meggett, SC

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Area Discussion for - Charleston, SC

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FXUS62 KCHS 042105 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 405 PM EST Thu Mar 4 2021

SYNOPSIS. High pressure will prevail into next week, aside from a low pressure system to the south brushing the area late this week into the weekend.

NEAR TERM /UNTIL 6 AM FRIDAY MORNING/. This Evening and Tonight: Aloft, a dry northwest flow will persist between a low pressure trough across the Northeast and a weak cutoff low traversing the Central Plains. At the sfc, a light west-northwest wind will decouple early this evening under clear skies, setting up a fair amount of radiational cooling through the first half of the night. Sfc temps will likely cool off quickly this evening in response to the setup. A dry backdoor cold front will then approach the area from the north, likely arriving around midnight, pushing south through the remainder of the area during the overnight period. A cool northerly wind will follow in wake of the front and sufficient mixing from cold air advection should support a 5-10 mph wind late. Overnight lows will likely range in the low/mid 40s for much of the area, but should stay in the upper 40s to around 50 degrees along the immediate coast.

SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/. High pressure will approach the region as a cold front shifts further south on Friday. All the while, a deep mid to upper level trough centered across eastern Canada will dig into the region and shortwave energy associated with the trough will help advect moisture into the area. Cloud cover is expected to increase late Friday night before clearing out on Sunday. There are some 12Z model discrepancies so still unsure of how much precip coverage the area will receive. Though, did limit POPs over land to slight chance and over the waters to chance. Any showers that do form should be light and no accumulation is expected. Winds could become gusty at times, mainly along the coast.

High temperatures will be in the 60s on Friday, then mid 50s to low 60s on Saturday and Sunday. Friday night low temps will be in the upper 30s to mid 40s. On Saturday, lows will be in the mid to upper 30s. While temps will be conducive for frost formation, Saturday night will not be a great night for radiational cooling and conditions seem too dry for widespread frost.

LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/. High confidence this period as models are in decent agreement keeping high pressure in control with mainly dry weather, although there is a small chance for a few showers mid week as a coastal trough develops. The main forecast challenge will revolve around temperatures, which should stay below normal until possibly getting back near normal Tuesday. Still possible to see some frost and/or freezing temperatures inland each morning through Tuesday, with the best chance of a freeze Sunday night. Note that now that we're back into the growing season we will be issuing Frost Advisories and Freeze Watches/Warnings as needed.

AVIATION /21Z THURSDAY THROUGH TUESDAY/. VFR conditions will prevail at both CHS and SAV terminals through 18Z Friday. A backdoor cold front will push through the terminals late tonight, with nothing more noticeable than a wind shift to the north-northeast between 5-10 kt Friday morning persisting into early Friday afternoon.

Extended Aviation Outlook: VFR will prevail, though gusty winds are possible Friday through Sunday. While lower ceilings might develop late Friday into Sunday, prolonged flight restrictions are not expected.

MARINE. This Evening and Tonight: The local waters will remain well east of weak high pressure early, favoring light southerly winds turning west late this evening (no higher than 10 kt). A backdoor cold front will then enter the area starting around midnight tonight, pushing south through the remainder of the waters during the overnight period. Cold air advection behind the front and a tightening of the pressure gradient will support a northerly wind up to 15-20 kt at times and seas up to 2-4 ft. Wind gusts could briefly touch 25 kt across some waters approaching daybreak, but the event will be quite limited in duration. Thus, a Small Craft Advisory is not needed at this time.

Friday through Tuesday: NNE winds will prevail through Tuesday. As shortwave energy associated with an mid to upper level trough passes across the waters, the pressure gradient will become pinched. Winds will be 15-20 knots with occasional gusts to 25 knots and seas could approach 6 feet. Small Craft Advisories could be needed starting Friday, then again on Saturday though conditions seem marginal at this time. By late Sunday, winds and seas will subside as high pressure prevails.

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



NEAR TERM . DPB SHORT TERM . RAD LONG TERM . RJB AVIATION . DPB MARINE . DPB/RAD

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
ACXS1 - ACE Basin Reserve, SC	13 mi	104 min	ESE 1.9	68°F			1014 hPa	43°F
CHTS1	20 mi	59 min	SSE 8.9 G 9.9	63°F	58°F		1013.7 hPa
FBIS1 - Folly Island, SC	21 mi	29 min	SSW 8.9 G 11	59°F			1014.3 hPa (-2.1)
41033	30 mi	81 min	S 5.8 G 7.8	59°F	56°F		1014.1 hPa
41029 - Capers Nearshore (CAP 2)	35 mi	36 min	SSW 7.8 G 9.7	58°F	57°F		1013.2 hPa
FPKG1 - 8670870 - Fort Pulaski, GA	57 mi	59 min	ESE 7 G 8.9	62°F	59°F		1015.2 hPa

Wind History for Charleston, SC

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12 AM

1 AM

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3 AM

4 AM

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Last 24hr

NW10 G14

NW8 G11

NW5 G10

W2

W2

W4 G7

W4

W3 G6

W3

NW5

W5 G9

W3 G6

NW3

NW4 G7

NW4 G7

NW3 G6

NW4 G8

N6

N4

N5

SE5

SE6

E1 G7

S10

1 day ago

N12 G15

NE10 G13

NE8 G13

NE8 G11

N9

N7 G10

N10 G13

N11 G15

NE14 G17

NE10 G14

N17

N9 G13

N12 G18

N15

N13 G18

N18 G23

NW10 G13

N14 G17

N13 G18

N14 G22

N11 G18

NW12 G17

NW10 G15

NW9 G14

2 days ago

SW5 G8

NW6 G11

W10

NW7 G11

NW7 G12

W4

SW6

NW5 G10

NW6 G10

NW6

N7 G10

N10 G16

N11 G16

N9

N12 G15

NE9 G12

N13 G17

NE11 G16

NE14 G17

NE11 G17

NE15

NE13 G17

N15

NE13 G16

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Charleston Executive Airport, SC	15 mi	34 min	S 8	7.00 mi	Fair	64°F	37°F	37%	1013.9 hPa
Charleston, Charleston Air Force Base, SC	20 mi	33 min	NNW 6	10.00 mi	Fair	71°F	33°F	25%	1013.1 hPa
Walterboro Lowcountry Regional Airport, SC	24 mi	34 min	W 7	10.00 mi	Fair	70°F	32°F	25%	1014.2 hPa

Link to 5 minute data for KJZI

Wind History from JZI (wind in knots)

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-12 PM

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Last 24hr

NW7 G13

NW4

NW4

Calm

Calm

Calm

Calm

W4

W4

NW4

W5

NW3

Calm

W4

NW4

NW4

N5

N7

NE7

4

N7

SE7

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1 day ago

NE6

N8

NE7

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N7

N10

N10

N7 G13

N12

NW7

N12

NW10 G21

N12

N11

NW8

N9 G17

NW16 G22

N14 G19

N12 G18

N10

NW10 G17

N7 G15

2 days ago

SW5

W10 G16

W11

NW8

W6 G12

SW5

Calm

NW7

NW5

NW4

N5

N10

NE6

N8

N7

NE9

NE10

NE12 G18

NE13

E17

NE16

NE13

NE10

N12

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Tide / Current Tables for Lower Toogoodoo Creek, 2 mi. above entrance, South Carolina

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Tide / Current Tables for Charleston Harbor Entrance, South Carolina Current

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Weather Map

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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.
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