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Marine Weather and Tides Kiawah Island, SC 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 7:18AM

Sunset 5:43PM

Wednesday January 22, 2020 2:26 AM EST (07:26 UTC)

Moonrise 5:32AM

Moonset 3:47PM

Illumination 9%

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 Kiawah Island, SC

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Area Discussion for - Charleston, SC

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FXUS62 KCHS 220535 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 1235 AM EST Wed Jan 22 2020

SYNOPSIS. Chilly high pressure will build across the area from the north through mid week before weakening in advance of a storm system impacting the region late week. High pressure should then return through early next week.

NEAR TERM /UNTIL 6 AM THIS MORNING/. GOES-E IR imagery shows high-level moisture streaming onshore associated with low pressure developing well offshore of the Florida east coast. KCLX has been pinging light returns along the coast and across the coastal waters for several hours now, but this is mostly virga falling from a 12.0-15.0 kft cloud deck. RAP soundings suggest the atmosphere is just too dry to support measurable precipitation, but a flurry or two can not be completely ruled out across mainly the coastal counties over the next few hours. Temperatures have been slow to fall tonight as a pocket of warmer mid-level air wrapping around the low pressure area offshore advects onshore. Noted H8 temperatures are progged to rise from about -5C to +3C by daybreak. Low temperatures have been nudged up a bit as a result. Did not adjust lows up as much as some guidance would suggest, but still expect a cold, blustery early morning with wind chills falling into the upper teens to lower 20s, or just above Wind Chill Advisory criteria for the coastal and far southern counties.

Lake Winds: Observations from PNOS1 along the south side of Lake Moultrie show winds have been averaging 20-25 kt with gusts as high as 30 kt over the past few hours. Increased winds slightly to reflect this. Waves were also increased from 1-2 ft to 2-3 ft given these higher speeds. A Lake Wind Advisory continues.

SHORT TERM /6 AM THIS MORNING THROUGH FRIDAY/. Moderate to high confidence this period. Chilly high pressure to the north will prevail inland through Thursday with mainly dry conditions, although can't rule out a few showers Thursday near the GA coast due to a developing coastal trough. The trough should sharpen up Thursday night before pushing north through the area Friday as a warm front. Shower chances will increase Thursday night becoming likely Friday into Friday night before generally ending from southwest to northeast into early Saturday. Temperatures will remain at or below normal through Thursday before getting back above normal Thursday night/Friday.

Lake Winds . Breezy north winds are expected to gust near 25 knots into Wednesday morning in/near Lake Moultrie. Thus, a Lake Wind Advisory will be in effect.

LONG TERM /FRIDAY NIGHT THROUGH TUESDAY/. A cold front is expected to shift across the area Friday night, producing scattered to numerous showers at most locations. Sfc high pressure will then spread across the area Saturday and become centered across the region early next week while a mid-lvl trough prevails over the Mid-Atlantic and Northeast states. The pattern will support slightly cooler conditions once fropa occurs, but temps should remain within a few degrees of normal. In general, high temps should range in the upper 50s/lower 60s each day while lows dip into the mid/upper 30s inland to lower 40s near the coast.

AVIATION /06Z WEDNESDAY THROUGH SUNDAY/. VFR with gusty winds continuing at both KCHS and KSAV.

Extended Aviation Outlook: High confidence in VFR conditions through Thursday, then lower confidence in restrictions starting Thursday night and continuing through Friday night due to low clouds/showers. High confidence in VFR conditions this weekend.

MARINE. Tonight: The pressure gradient will remain enhanced in between high pressure inland and strengthening low pressure southeast of the waters. North winds are forecast to gust to 35-40 knots and a Gale Warning is now in effect for all waters, with the exception of the Charleston Harbor where a Small Craft Advisory will persist. The highest winds will occur in the outer portions of the marine zones. Seas will build as well, averaging 5-9 ft in the nearshore waters and 9-13 ft beyond by daybreak.

Wednesday through Sunday: Moderate to high confidence through the period. Hazardous marine conditions are expected through Wednesday for all waters due to a tight pressure gradient between inland high pressure and offshore low pressure. Gales are likely for all waters outside Charleston Harbor. Expect some improvement starting Wednesday night as the pressure gradient begins to weaken leading to slowly lowering winds/seas but Advisory conditions will likely linger through Thursday across the nearshore waters and into early next week over the offshore waters beyond 20 nm.

TIDES/COASTAL FLOODING. Strong high pressure to the north and low pressure offshore will maintain elevated north/northeast winds through mid week which could push tide levels slightly above coastal advisory thresholds during the morning high tides, especially near Charleston.

CHS WATCHES/WARNINGS/ADVISORIES. GA . None. SC . Lake Wind Advisory until 11 AM EST this morning for SCZ045. MARINE . Gale Warning until 11 AM EST this morning for AMZ352-354. Gale Warning until 1 PM EST this afternoon for AMZ350. Gale Warning until 7 PM EST this evening for AMZ374. Small Craft Advisory until 5 PM EST this afternoon for AMZ330.

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Weather Reporting Stations

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Stations	Dist	Age	Wind	Air Temp	Water Temp	Waves	Pressure	DewPt
FBIS1 - Folly Island, SC	13 mi	86 min	N 16 G 19	36°F			1025 hPa (-0.5)	17°F
CHTS1	16 mi	56 min		37°F	55°F		1024.6 hPa
ACXS1 - ACE Basin Reserve, SC	18 mi	101 min	N 5.1	34°F			1025 hPa	16°F
41033	27 mi	78 min	NE 21 G 29	39°F	54°F		1023.8 hPa
41029 - Capers Nearshore (CAP 2)	30 mi	78 min	NE 21 G 31	38°F	55°F		1024.9 hPa
41004 - EDISTO - 41 NM Southeast of Charleston, SC	54 mi	36 min	29 G 39		71°F		1021.5 hPa

Wind History for Charleston, SC

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

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N15 G19

N16 G20

N16 G20

N16 G21

N16 G22

N16 G20

N17 G22

N16 G20

N16

N11 G19

NW14 G20

NW12 G20

NW14 G22

NW15 G24

N15 G19

N15 G21

N10 G18

N13 G19

N12

N12 G20

N12 G20

N13 G19

N9 G14

N11 G18

1 day ago

N10 G18

N16 G21

N18 G23

NW9 G14

NW5 G10

NW7 G14

NW7 G14

NW7 G12

NW4 G10

W2 G7

N7 G11

N6 G11

N8 G11

NW7 G12

NW7 G12

N8 G12

N7 G11

N9 G13

N10 G13

N11

N11 G14

N14 G18

N14 G18

N12 G17

2 days ago

SW9 G18

SW9 G13

SW9 G16

SW8 G14

SW9 G15

SW8 G13

W6 G11

W7 G14

W7 G12

W9 G15

W11 G17

W9 G14

W10 G15

W6 G16

W8 G14

W6 G11

W7 G11

NW5 G8

NW7 G11

NW7 G10

NW7 G11

N8 G13

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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	10 mi	31 min	N 0 G 10	10.00 mi	A Few Clouds	34°F	14°F	44%	1024.7 hPa
Charleston, Charleston Air Force Base, SC	23 mi	90 min	NNE 12 G 20	10.00 mi	A Few Clouds	34°F	12°F	40%	1025.1 hPa

Link to 5 minute data for KJZI

Wind History from JZI (wind in knots)

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Last 24hr

Calm

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N4 G10

Calm

N7 G14

6 G13

N5 G13

N4 G10

N8 G14

N11 G19

NW9 G18

N10 G21

Calm

NW7 G20

N5 G14

N5 G14

NW4 G11

Calm

N8 G16

Calm

N3 G11

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N4 G14

1 day ago

Calm

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N5 G13

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N4 G16

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2 days ago

SW3 G10

Calm

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Calm

Calm

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Calm

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W5 G16

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Calm

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Tide / Current Tables for Kiawah River Bridge, South Carolina

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Tide / Current Tables for Charleston Harbor, off Fort Sumter, South Carolina Current (expired 1996-12-31)

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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 (2,6,7,8)

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Ground Weather Radar Station Charleston, SC

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