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AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 1244 Am Est Mon Dec 4 2023
Rest of tonight..W winds 5 to 10 kt. Seas 2 to 3 ft.
Mon..W winds 5 to 10 kt. Seas 2 to 3 ft.
Mon night..W winds 10 to 15 kt, becoming nw after midnight. Seas 2 to 3 ft.
Tue..NW winds 5 to 10 kt, becoming W in the afternoon. Seas 2 ft.
Tue night..W winds 10 to 15 kt, becoming nw 15 to 20 kt with gusts to 25 kt after midnight. Seas 2 to 3 ft.
Wed..NW winds 15 to 20 kt with gusts to 25 kt. Seas 2 to 3 ft.
Wed night..N winds 15 to 20 kt with gusts to 25 kt. Seas 2 to 3 ft, building to 3 to 4 ft after midnight.
Thu..N winds 10 to 15 kt. Seas 2 to 3 ft.
Thu night..W winds 5 to 10 kt. Seas 2 ft.
Fri..W winds 5 to 10 kt. Seas 2 ft.
Fri night..SE winds 5 kt. Seas 2 ft.

AMZ300 1244 Am Est Mon Dec 4 2023
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia.. A cold front will pass through the area tonight. Another cold front will drop through late Tuesday night, followed by high pressure through late week.

FXUS62 KCHS 040558 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 1258 AM EST Mon Dec 4 2023

SYNOPSIS
A cold front will pass through the area tonight. Another cold front will drop through late Tuesday night, followed by high pressure through late week.

NEAR TERM /UNTIL 6 AM THIS MORNING/
Early this morning: The forecast through sunrise is a bit complex thanks to the fact that the cold front is hung up just upstream of the area across the South Carolina Midlands and central Georgia. This has left the forecast area still in a warm and moist low-level environment. Precipitation is not expected but there are fog and low stratus concerns. Surface observations across the forecast area depict an expanding blanket of low stratus based around 600-800 feet. Also, several southeast Georgia sites are already reporting light fog, which is likely relatively shallow. The issue is that the upstream shortwave trough aloft is still back across the central CONUS so there is no real push to get the front through the area with any degree of quickness. So, the arrival of cooler and drier air will be delayed from previous forecast thinking which means warmer lows and longer linger of the fog and stratus.

SHORT TERM /6 AM THIS MORNING THROUGH WEDNESDAY/
Monday: The primary drive of CAA will come from that fourth shortwave as it exits the Mid Atlantic coast Monday afternoon.
Ahead of this wave, neutral TA will persist, with a surge of CAA on the backside of the 850 mb front. The entire day will be dry though as PWATs will be only around 0.40". High temperatures for Monday will also be rather tricky. At 250 mb, a potent upper level jet streak will center across the Mid Atlantic (with a potential 250 mb wind speed record possible on the 04.12z KCHS sounding), which will likely provide sufficient lift for a rather expansive cirrus deck. This will limit warming slightly.
On the other hand, 850 mb temperatures are forecast to remain around 9 degrees C for most of the day ahead of the primary short wave. Not until Monday evening do temperatures fall off behind the 850 mb front. Given all of the above, the thinking is that cloud cover will be sufficient to keep temperatures in the upper 60s to lower 70s for Monday.

Larger scale troughing will be in place across the central and eastern part of NOAM to start the work week with several short- wave impulses rotating through the mean trough. Nearest short- wave and attending surface feature (moving through the Central Plains today) will advance through the Tennessee Valley to off the mid Atlantic coast by Monday evening. But strongest forcing, associated moisture and any precip chances will remain well to our north. Thus we are keeping the forecast dry.

Final short-wave impulse will be diving down through the mid Atlantic and southeast CONUS on Wednesday driving another boundary through the region. It's a fairly strong wave/upper trough. But once again all the better moisture is looking to pass by well to our north with dry weather dominating through the southeast CONUS.

Otherwise, progressively cooler temperatures are anticipated through the first half of the week. Highs in the middle 60s to around 70 on Monday, slipping down into the 50s by Wednesday.
Lows each night in the upper 30s to middle 40s.

LONG TERM /WEDNESDAY NIGHT THROUGH SUNDAY/
Coolest temperatures of the seven day stretch will come Wednesday night/Thursday morning as the core of coldest air aloft passes through the region. Clear skies Wednesday night will lend to the cool temperatures although there may be a persistent surface wind that keeps temperatures from falling as far as they otherwise could. But lots of lower to middle 30s are anticipated Thursday morning...with warmer readings along the coast.

Cool stretch will be somewhat short-lived as upper level ridging builds through the central CONUS and eventually into the southeast for the latter half of the week. This will usher in warmer temperatures for Friday and through the upcoming weekend with daytime highs going back above normal (middle 60s for most). Another strong short-wave impulse may be diving into the Gulf Coast region and the southeast late in the weekend and might bring another chance for precip late Saturday into Sunday.
Still lots of time to refine the details.

AVIATION /06Z MONDAY THROUGH FRIDAY/
The first 6 hours or so of the 06z TAF period will be complex thanks to the presence of an expanding blanket of IFR stratus across much of southeast Georgia and southeast South Carolina.
In fact, IFR ceilings have settled in at KCHS and KJZI and are very close at KSAV. Current thinking is that IFR conditions won't last for a prolonged period of time, but will likely take until 09-10z before improving to VFR. West to west-southwest winds will become breezy this afternoon, with frequent gusts up close to 20 knots expected.

Extended Aviation Outlook: VFR. Gusty winds are possible on Wednesday.

MARINE
Tonight: A cold front will push offshore and into the marine waters tonight, with winds shifting from the SW to NW by daybreak. Generally speeds will average around 10 knots. Seas are forecast to average 2 to 3 ft.

Monday through Friday: Westerly winds will increase on Monday with a brief period of gusts into the low 20 knot range later in the day.
No Small Craft Advisories are anticipated at this time. A cold front is expected to pass through Tuesday night with increasing winds and seas behind it. Small Craft Advisories appear likely for the coastal waters beginning late Tuesday night and continuing through the day Wednesday into Wednesday night. Conditions will improve Thursday as high pressure shifts overhead with no additional concerns through Friday.

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

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Broughton Point
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Sun -- 01:27 AM EST     6.44 feet High Tide
Sun -- 07:08 AM EST     Sunrise
Sun -- 07:16 AM EST     0.91 feet Low Tide
Sun -- 12:14 PM EST     Moonset
Sun -- 01:42 PM EST     7.41 feet High Tide
Sun -- 05:17 PM EST     Sunset
Sun -- 07:53 PM EST     1.12 feet Low Tide
Sun -- 11:07 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Broughton Point, Hazzard Creek, Broad River, South Carolina, Tide feet

Hwy. 170 bridge
Click for Map
Sun -- 12:44 AM EST     6.20 feet High Tide
Sun -- 06:32 AM EST     1.06 feet Low Tide
Sun -- 07:08 AM EST     Sunrise
Sun -- 12:13 PM EST     Moonset
Sun -- 12:59 PM EST     7.14 feet High Tide
Sun -- 05:17 PM EST     Sunset
Sun -- 07:09 PM EST     1.30 feet Low Tide
Sun -- 11:07 PM EST     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Hwy. 170 bridge, Broad River, South Carolina, Tide feet

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