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Marine Weather and Tides Richmond Hill, 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 7:01AM

Sunset 6:16PM

Thursday February 20, 2020 8:35 PM EST (01:35 UTC)

Moonrise 5:17AM

Moonset 3:38PM

Illumination 8%

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 Richmond Hill, GA

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Area Discussion for - Charleston, SC

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FXUS62 KCHS 202350 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 650 PM EST Thu Feb 20 2020

SYNOPSIS. Developing low pressure offshore will move northeast tonight. High pressure will then move into the area on Friday, bringing cold, drier air through the weekend. Another warm front will move into the area early next week, bringing more rain to the area.

NEAR TERM /UNTIL 6 AM FRIDAY MORNING/. The much anticipated cyclogenesis off the Southeast U.S. coast is well underway with 20/23z surface objective analysis placing the low about 170 miles east of Tybee Island, GA. Widespread light moderate rains associated with the low with support from a shortwave digging across the Ohio Valley and a powerful polar jet across the Deep South will persist across southern South Carolina into Southeast Georgia through at least midnight before slowly winding down from west-east through the overnight as the surface low pulls propagates farther offshore. The heaviest of the rains will fall over the next 3-4 hours before tapering off.

High resolution guidance has trended slightly lower with the ending of the precipitation across the Charleston Tri-County area late tonight. With this slower movement, there is some concern with p-type as temperatures fall into the lower-mid 30s north of the I-26 corridor. High resolution soundings with support from both the 20/18z NAM3km and GFS show there should be just barely enough moisture left over in the dendritic growth zone (DGZ) to support some ice nucleation. Soundings at KCHS, KMKS and Jamestown in the 09-13z time frame show a sub-freezing layer above the boundary layer so expect hydrometers to remain frozen before melting just before reaching the ground. This scenario will support either a rain-snow mix or possibly a brief burst of very light snow before as the precipitation moves offshore, mainly along/north of the I-26 corridor. Sleet appears unlikely given the depth of the cold air. No impacts are expected given the warm ground temperatures and this should be more of a novelty event this far to the south.

SHORT TERM /6 AM FRIDAY MORNING THROUGH SUNDAY/. High pressure will continue to build into the area through Friday. A strong pressure gradient will support gusty winds up to 25 kts through Friday night into Saturday morning over Lake Moultrie. Temperatures will continue to be below normal, with lows in the upper 20's and low 30's through the weekend. High pressure will then prevail through the weekend, bringing quiet weather. Sunday will see temperatures in the upper 50s/low 60s.

LONG TERM /SUNDAY NIGHT THROUGH THURSDAY/. A warm front is forecast to lift north through the forecast area on Monday as low pressure lifts into the Ohio River Valley. Some rain could accompany the front, but the best rain chances will come late Monday night and Tuesday as a cold front passes through. Another stronger front could approach on Wednesday as a deep upper trough moves into the eastern U.S. Temperatures through the period are expected to be near to above normal.

AVIATION /00Z FRIDAY THROUGH TUESDAY/. High-end IFR to low-end MVFR cigs will linger through the evening before lifting to more solid MVFR after midnight as rain begins to diminish. VSbys of 2-4 miles will persist before returning to P6SM as the rain wanes. There is a slight chance rain could mix with or briefly change to snow at KCHS just before daybreak as the precipitation ends, but there will be no impacts. VFR will return by mid-morning as skies begin to clear. Gusty winds will persist through the 00z TAF period with gusts 20-25 kt at both KSAV and KCHS.

Extended Aviation Outlook: VFR will prevail through the weekend with gusty winds through Friday night. Some restrictions likely starting Monday.

MARINE. Tonight: Solid Small Craft Advisory conditions will give way to Gale Warning conditions outside Charleston Harbor as the pressure gradient intensifies due to low pressure strengthening just east of the waters. We do not have a Gale Warning in Charleston Harbor at this point but certainly can't rule out a few gale force gusts near the mouth of the harbor. Waves will build substantially with 6-9 foot seas beyond the pilot buoys and 10-12 ft out closer to the warm Gulf Stream waters.

Friday through Tuesday: Winds will remain quite gusty through Saturday evening. Gale warnings will be in effect through Friday evening for all Charleston waters except the Charleston Harbor, which has a small craft advisory. As the pressure gradient relaxes, small craft advisories will be needed to replace the gale warnings which should remain in effect until Saturday afternoon/evening for all waters.

No concerns expected Sunday into Monday, however an uptick in winds and seas is possible on Tuesday ahead of the next low pressure system.

TIDES/COASTAL FLOODING. Strong northeast winds are likely to cause minor coastal flooding with the Friday morning high tide along the SC coast, possibly Saturday morning as well.

EQUIPMENT. There will be a 03Z special sounding released in support of the NASA IMPACTS winter storm project.

CHS WATCHES/WARNINGS/ADVISORIES. GA . None. SC . Lake Wind Advisory until 7 PM EST Friday for SCZ045. MARINE . Gale Warning until 5 PM EST Friday for AMZ350-352-354. Gale Warning until 10 PM EST Friday for AMZ374. Small Craft Advisory until 7 PM EST Friday for AMZ330.

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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	24 mi	47 min	NNE 16 G 20	44°F	57°F		1022.2 hPa
SAXG1 - Sapelo Island Reserve, GA	37 mi	95 min	N 19	47°F			1021 hPa (+3.0)	46°F
41008 - GRAYS REEF - 40 NM Southeast of Savannah, GA	45 mi	45 min	N 25 G 31	49°F	60°F	7 ft	1019.7 hPa (+1.7)	47°F

Wind History for Fort Pulaski, GA

(wind in knots)    EDIT      (on/off)   Help

9 PM

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Last 24hr

NE19 G26

NE17 G22

NE11

NE13 G17

NE11 G15

NE9

NE10

NE11 G14

NE12 G16

NE13 G17

NE11 G14

NE8 G12

NE13 G16

NE12 G16

NE13 G16

NE11 G15

NE11 G14

N12 G16

NE12 G16

NE13 G17

NE13 G17

N14 G19

NE21

N17 G21

1 day ago

SE4

SE3

S1

SW2

W2

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SW2

N4

N1

NW3

SW1

SW2

SW2

E3

NE2

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N8

NE7

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NE9 G12

NE16 G21

NE21 G27

2 days ago

NE11 G14

NE11 G14

NE7

NE8 G11

NE6

NE8

NE6

NE5

NE4

E3 G6

E4

N5

NE3

E4

NE3

E4

NE6

E4

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NE5

E5

E6

E5

E5

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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	11 mi	39 min	N 5	5.00 mi	Rain	43°F	39°F	89%	1022 hPa
Wright Army Airfield (Fort Stewart)/Midcoast Regional Airport, GA	13 mi	39 min	N 9	10.00 mi	Rain	42°F	41°F	99%	1021.6 hPa
Savannah-Hilton Head International Airport, GA	15 mi	42 min	NNE 13	4.00 mi	Light Rain Fog/Mist	43°F	41°F	93%	1022.3 hPa

Link to 5 minute data for KSVN

Wind History from SVN (wind in knots)

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Last 24hr

NE9

NE8

NE6

NE6

NE6

NE3

N4

NE6

NE5

NE7

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NE6

NE6

NE7

NE7 G14

NE7

NW4

N4

NE6

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N5

1 day ago

SE7

SE4

Calm

Calm

Calm

Calm

Calm

Calm

Calm

N4

Calm

Calm

2

SE5

Calm

W3

N6

N10

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NE6

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NE7

E10 G18

E9

2 days ago

E5

NE4

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NE6

NE3

NE4

NE3

NE3

Calm

Calm

E3

Calm

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6

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2

2

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2

SW3

SW3

SW4

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E5

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Tide / Current Tables for Highway bridge, Ogeechee River, Georgia

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Tide / Current Tables for Fort McAllister, Ogeechee River, Georgia

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Weather Map

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GEOS Local Image of Southeast    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 (20,4,5,8)

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Ground Weather Radar Station Charleston, SC

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