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AMZ330 Charleston Harbor- 618 Pm Est Sun Dec 10 2023
.small craft advisory in effect until 6 am est Monday...
Tonight..SW winds 15 to 20 kt, becoming nw 20 to 25 kt with gust to 30 kt after midnight, then diminishing to 10 to 15 kt late. Waves 2 to 3 ft. Showers with a slight chance of tstms early this evening, then showers late this evening.
Mon..NW winds 10 to 15 kt.
Mon night..N winds 5 to 10 kt.
Tue..NE winds 5 to 10 kt.
Tue night..NE winds 10 kt.
Wed..NE winds 10 kt.
Wed night..NE winds 10 to 15 kt with gusts to 25 kt.
Thu..NE winds 15 to 20 kt. Waves 1 to 2 ft.
Thu night..NE winds 15 kt.
Fri..NE winds 15 kt.
Fri night..NE winds 15 kt. A slight chance of showers.
winds and waves higher in and near tstms.
unless otherwise noted, waves 1 foot or less.
charleston harbor water temperature 60 degrees.

AMZ300 618 Pm Est Sun Dec 10 2023
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A strong cold front will cross the area this evening, followed by high pressure through late this week.

FXUS62 KCAE 110003 AFDCAE

Area Forecast Discussion National Weather Service Columbia SC 703 PM EST Sun Dec 10 2023

SYNOPSIS
As a cold front moves into the region from the west this afternoon and evening, showers and thunderstorms are expected to continue into tonight. It'll also be breezy at times both before and after the frontal passage. The front moves east tonight, bringing another cool, dry air mass to the area for much of the week ahead. The next chance of rain is not expected until next weekend.

NEAR TERM /UNTIL 6 AM MONDAY MORNING/
Currently, radar indicating only areas of light to moderate rain across our forecast area (FA) and points westward. The main cold front is currently stretched from NW SC SW across central GA to the FL panhandle. Latest mesoanalysis indicating only weak instability, with moderate shear. Severe threat appears low and will reduce thunder mention from chance to isolated. Latest high resolution models indicate rain area shifting east this evening and early tonight, with the cold front traversing the FA from W to E from about 00z to 05z, with precipitation pushing out of our FA late tonight. Obs to the west indicating breezy conditions behind the front. Latest HRRR indicates potential for breezy conditions behind the front until late tonight. Will allow Lake Wind Advisory to continue til 06z.

SHORT TERM /6 AM MONDAY MORNING THROUGH TUESDAY NIGHT/
Monday and Monday night: Flow aloft is expected to become zonal through the day Monday. Meanwhile, a strong surface high is forecast to continue to build into the area, with guidance suggesting it be about 1030 mb or stronger. In addition, dry air should settle into place with PWATs of about 0.25", which is 40-50% of normal. All of this will aid in mainly clear skies.
Cold air advection is expected to continue during the day, keeping afternoon highs several degrees below normal in the lower to mid 50s. Although the center of the surface high is forecast to remain to our north, winds should diminish enough to allow for efficient radiational cooling. There is a high chance of temperatures bottoming out below freezing for most. Forecast lows are mid to upper 20s.

Tuesday and Tuesday Night: The overall pattern doesn't change much for Tuesday, so the sensible weather should be similar to Monday. Temperatures could be a degree or two warmer for both highs and lows. Highs are expected to be in the lower to mid 50s and lows around 30.

LONG TERM /WEDNESDAY THROUGH SUNDAY/
The zonal upper flow should transition to more northwesterly midweek as a ridge begins to build over the central CONUS as ensemble guidance suggests. Guidance also suggests an upper trough transitions to a closed low over the Intermountain West.
This feature is expected to translate eastward through the second half of the week transitioning back to an open wave.
There is some discrepancies with just how deep this trough gets and the timing. Nonetheless, this feature could be our next weather maker next weekend. However, spread in the model solutions remains high, therefore, the confidence is low in the forecast for shower activity next weekend.

AVIATION /00Z MONDAY THROUGH FRIDAY/
Restrictions to continue through the early morning hours then a rapid return to VFR.

Cold front currently moving through the Upstate and eastern GA will cross the terminals over the next several hours. Radar imagery continues to show mainly light rain with some embedded moderate rain and lower cigs so will handle the lower conditions with a tempo group through 04z. Behind the front expect scattered showers around the area with winds quickly turning to WNW and becoming gusty. Skies will quickly clear around 07z as drier air behind the front enters the region and winds will turn to the NW and begin subsiding. By daybreak expect skies to be clear with the wind gusts ended and NW winds around 7 knots through the day.

EXTENDED AVIATION OUTLOOK... Gusty winds may be possible into Monday afternoon. Otherwise, no significant restrictions to aviation expected Monday afternoon through Friday.

CAE WATCHES/WARNINGS/ADVISORIES
GA...Lake Wind Advisory until 1 AM EST Monday for GAZ040-063>065- 077.
SC...Lake Wind Advisory until 1 AM EST Monday for SCZ016-018- 020>022-025>031-035-037-038-041-115-116-135>137.

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Bluff Plantation
Click for Map
Sun -- 03:11 AM EST     0.22 feet Low Tide
Sun -- 04:49 AM EST     Moonrise
Sun -- 07:14 AM EST     Sunrise
Sun -- 09:46 AM EST     3.27 feet High Tide
Sun -- 03:24 PM EST     Moonset
Sun -- 04:00 PM EST     0.29 feet Low Tide
Sun -- 05:17 PM EST     Sunset
Sun -- 09:59 PM EST     2.92 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Bluff Plantation, Combahee River, South Carolina, Tide feet

Cuckolds Creek
Click for Map
Sun -- 03:34 AM EST     0.83 feet Low Tide
Sun -- 04:49 AM EST     Moonrise
Sun -- 07:13 AM EST     Sunrise
Sun -- 10:29 AM EST     3.70 feet High Tide
Sun -- 03:24 PM EST     Moonset
Sun -- 04:23 PM EST     1.10 feet Low Tide
Sun -- 05:16 PM EST     Sunset
Sun -- 10:42 PM EST     3.31 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Cuckolds Creek, Combahee River, South Carolina, Tide feet

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