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Marine Weather and Tides Wilmington Island, GA Version 3.4

NOTICE 12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed. 10/9/2019 Updated the Marine Zones. 9/4/2019 Fixed the weather maps due to NOAA moving them. 7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

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Sunrise 6:43AM

Sunset 8:14PM

Sunday August 9, 2020 6:33 AM EDT (10:33 UTC)

Moonrise 10:51PM

Moonset 11:04AM

Illumination 71%

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 Wilmington Island, GA

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Area Discussion for - Charleston, SC

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FXUS62 KCHS 090809 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 409 AM EDT Sun Aug 9 2020

SYNOPSIS. The region will remain positioned between Atlantic high pressure centered offshore, and an inland area of broad low pressure.

NEAR TERM /THROUGH TONIGHT/. Weak upper level troughing will prevail across the southeast through tonight with weak upper disturbances moving through the area. Precipitable water levels are expected to remain near 2 inches. Surface heating will help CAPE values rise to 1500 to 2000 J/KG this afternoon and this combined with an inland moving sea breeze will result in scattered afternoon and evening showers and thunderstorms, most concentrated along and west of the sea breeze. Storm motion will be dominated by outflow and local enhanced convergence so training of storms or nearly stationary storms could result in locally heavy rainfall. Also, a few storms could briefly become strong with frequent lightning. Convection should dissipate by late evening, but cannot rule out a few showers and thunderstorms redeveloping overnight. Highs today expected to be in the lower to mid 90s away from the coast and in the upper 80s at the coast. Lows tonight from the lower 70s well inland to the upper 70 near the coast.

SHORT TERM /MONDAY THROUGH WEDNESDAY/. The large scale pattern will continue to be nearly locked in place through the period with a broad, deep layer trough of low pressure well west of the region, and an Atlantic ridge of high pressure well to the southeast. Models show a hint of a weak upper level short wave to drift over the region Monday, but other than that, no real discernible large scale features to help focus and force convection. Therefore, the sea breeze will be the primary initial trigger for convection, followed by convective outflow boundaries during the afternoon and evening. Lingering outflow boundaries may spawn isolated showers or thunderstorms through the night each night. Winds will be light southerly less than 10 mph, becoming onshore near the coast each afternoon in the form of a weak seabreeze. With abundant moisture and light, unidirectional deep layer flow, locally heavy rainfall will again be possible. High temperatures close to normal, reaching 90 to the lower 90s. Lows will continue warm, in the lower to mid 70s most areas, around 80 close to the coast. Afternoon heat indices expected to reach 100 to 105 each day as surface dewpoint temperatures stay in the lower to mid 70s.

LONG TERM /WEDNESDAY NIGHT THROUGH SATURDAY/. Very little change in the large scale pattern is shown by global models through the period as a broad trough persists inland and higher pressure well offshore over the Atlantic. This will continue light southerly winds with afternoon sea breezes each day. Although deep layer moisture will be sufficient with PWs 1.5 to 2 inches, lack of any significant large scale forcing will mean that the sea breeze will continue to be the primary way convection will initiate. Model blended PoPs continue to be in the likely range each afternoon, which is about 20 percent above climo. Continue to feel a little uncomfortable with PoPs in that range so far out. However, the higher blended PoPs collaborate well with surrounding offices. Did adjust PoPs downward by 5-10 percent, especially toward the end of the period. High temperatures will continue near normal, while low temperatures likely to continue a few degrees above normal. Given light steering flow, locally heavy rainfall cannot be ruled out each afternoon.

AVIATION /08Z SUNDAY THROUGH THURSDAY/. Added a period of VCTS to KCHS to start the TAF forecast period due to convection that recently develop. This convection will be transitioning away from the terminal by 08Z. Then VFR conditions should prevail at both sites through 00z Monday. Could again see thunderstorm development near the terminals Sunday afternoon and evening, but for now only included VCTS at KSAV.

Extended Aviation Outlook: Scattered to numerous mainly afternoon and early evening showers and thunderstorms could result in brief flight restrictions at both sites each day.

MARINE. Today and tonight: Extremely tranquil period outside of any convection with winds greatest near the coast in association with afternoon/evening sea breeze, but even there winds will only be around 10 knots. Seas will be from 1 to 2 feet.

Monday through Thursday: No highlights are expected through the period. The waters will remain between Atlantic high pressure to the east and a broad area of lower pressure well inland. This pattern will continue generally south-southwest winds of 15 knots or less and seas of 1 to 3 feet. Winds are expected to veer to south-southeast each afternoon near the coast due to the sea breeze circulation.

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

NEAR TERM . MTE SHORT TERM . RFM LONG TERM . RFM AVIATION . MTE/RFM MARINE . MTE/RFM

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
FPKG1 - 8670870 - Fort Pulaski, GA	6 mi	46 min	W 5.1 G 6	78°F	85°F		1020.8 hPa
41033	37 mi	26 min	WNW 7.8 G 12	82°F	85°F		1020 hPa
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA	42 mi	44 min	WSW 9.7 G 12	83°F	85°F	1 ft	1020 hPa (-0.3)	76°F
SAXG1 - Sapelo Island Reserve, GA	43 mi	34 min	W 1	74°F			1020 hPa (-1.0)	73°F
ACXS1 - ACE Basin Reserve, SC	48 mi	49 min	Calm	78°F			1020 hPa	77°F

Wind History for Fort Pulaski, GA

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SW4 G7

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Airport Reports

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Airport	Dist	Age	Wind kt	Visibility	Sky/Weather	Temp	DewPt	Humidity	Pressure
Hunter U. S. Army Airfield, GA	8 mi	38 min	N 0	10.00 mi	Fair	74°F	70°F	89%	1019.9 hPa
Savannah-Hilton Head International Airport, GA	14 mi	41 min	N 0	10.00 mi	Fair	75°F	73°F	94%	1020.6 hPa
Hilton Head Island, Hilton Head Airport, SC	22 mi	59 min	N 0	10.00 mi	Fair	79°F	71°F	79%	1020.7 hPa

Link to 5 minute data for KSVN

Wind History from SVN (wind in knots)

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1 day ago

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SE10 G15

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NW20 G25

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Tide / Current Tables for Savannah Sheraton Resort Hotel, Wilmington River, Georgia

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Tide / Current Tables for Savannah River Entrance, Georgia Current (2) (expired 1999-12-31)

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Weather Map

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GEOS 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

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Wind Forecast for Charleston, SC (6,6,7,8)

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Ground Weather Radar Station Charleston, SC

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