Sunrise 6:39 AM   Sunset 8:01 PM Moonrise 10:02 PM   Moonset 7:05 AM

  Print   HELP   Reset   Save   Recall

AMZ352 Waters From Edisto Beach Sc To Savannah Ga Out 20 Nm- 338 Pm Edt Fri Apr 26 2024
Tonight - NE winds 15 kt, gusts to around 20 kt through early evening. Seas 3 to 4 ft, building to 4 to 5 ft this evening, subsiding to 3 to 4 ft after midnight. Wave detail: E 3 ft at 4 seconds and E 1 ft at 10 seconds, becoming E 4 ft at 5 seconds and E 1 ft at 9 seconds, becoming E 4 ft at 6 seconds and E 1 ft at 9 seconds. Sat - E winds 10 to 15 kt. Seas 4 to 5 ft. Wave detail: E 4 ft at 6 seconds. Sat night - E winds 10 to 15 kt. Seas 4 to 5 ft. Wave detail: E 4 ft at 7 seconds. Sun - E winds 10 kt. Seas 4 to 5 ft, subsiding to 3 to 4 ft in the afternoon. Wave detail: se 4 ft at 7 seconds. Sun night - SE winds 5 to 10 kt. Seas 3 to 4 ft. Wave detail: se 4 ft at 7 seconds. Mon - SE winds 5 to 10 kt. Seas 3 ft. Wave detail: se 3 ft at 7 seconds. Mon night - S winds 5 to 10 kt. Seas 3 ft. Tue - S winds 10 kt. Seas 2 to 3 ft. Tue night - S winds 10 kt. Seas 2 to 3 ft. Wed - SW winds 10 kt. Seas 2 to 3 ft. Wed night - S winds 10 kt. Seas 2 to 3 ft.

AMZ300 338 Pm Edt Fri Apr 26 2024
Synopsis for the coastal waters of south coastal south carolina and north coastal georgia -
high pressure will prevail through much of next week. A weak cold front could approach late next week.

FXUS62 KCHS 261956 AFDCHS

Area Forecast Discussion National Weather Service Charleston SC 356 PM EDT Fri Apr 26 2024

SYNOPSIS
High pressure will prevail through much of next week. A weak cold front could approach late next week.

NEAR TERM /UNTIL 6 AM SATURDAY MORNING/
Short-wave ridge axis extends from the northern Gulf up through the Great Lakes with downstream surface high pressure draped along the entire East Coast and solid northeasterly to easterly flow in place across the southeast
Morning low cloud cover and fog is gone
save for a narrow corridor tucked along the coast...replaced with fair weather cumulus and a bit of mid cloud cover trying to press in from the west. There is a narrow band of showers well offshore near the western edge of the Gulf Stream and some hint of a coastal trough across that area.

Tonight: Sharp upper level ridge axis will continue to build into the southeast CONUS up through the eastern Great Lakes while sprawling surface high pressure holds along the East Coast. Tighter pressure gradient across the region should keep things a bit more mixed through the night and preclude the development of fog. That said, we remain concerned that we might see the return of some low level marine cloud cover as we go through the night, although our overall forecast confidence in that occurring is low. Nonetheless, plan on trending things toward the partly to mostly cloudy side given the increased mid level cloud cover pressing in from the west.

Otherwise, lows will range from the upper 50s well inland to the upper 60s at the beaches. A few beach spots along the Georgia coast, such as Tybee Island, may not drop below 70.

SHORT TERM /6 AM SATURDAY MORNING THROUGH MONDAY/
Aloft, a strong mid-upper lvl ridge will remain directly over the Southeast United States this weekend, then shift offshore early next week. At the sfc, the local area will remain along the southern periphery of cool high pressure centered to the north while subtle coastal troughing takes place off the Southeast Coast. The setup will favor onshore flow each day, with sfc winds slowly veering during the weekend and resulting in a slight warming trend as the ridge aloft starts to slide offshore early next week. Latest guidance continues to suggest low-lvl flow bringing sufficient moisture onshore in the form of scattered/broken stratocumulus Saturday morning and potentially Sunday morning. High temps should peak into the upper 70s/lower 80s away from the coast this weekend, then low-mid 80s away from the beaches on Monday. Overnight lows should range in the upper 50s inland to mid 60s near the beaches Saturday night and Sunday night. However, lows could be dip into the mid 50s well inland Sunday night due to lighter winds and clear skies leading to more favorable radiational cooling conditions.

LONG TERM /MONDAY NIGHT THROUGH FRIDAY/
Mainly dry weather is expected through much of next week as a zonal flow develops across the Southeast by mid-week while sfc high pressure centered across the western Atlantic extends across the Southeast. Warm air advection and ample sunshine will yield a warming trend through the week, with high temps peaking in the upper 80s to lower 90s mid to late week. The next chance of rainfall should come with a front potentially reaching the local area next weekend.

AVIATION /20Z FRIDAY THROUGH WEDNESDAY/
26/18z TAF Discussion: KCHS/KJZI/KSAV: Low stratus has eroded leaving VFR conditions in place...save for a narrow corridor of MVFR marine stratocu tucked along the coast and impacting KJZI. Other than a brief period of MVFR conditions at KJZI, VFR will be the rule through the afternoon hours into this evening at all terminals. Gusty easterly winds persist through the afternoon with gusts 20 to 25 knots common. Winds will subside around and after sunset.

With persistent easterly flow off the ocean, it's possible we get the return of low stratus into the terminals later tonight, although our forecast confidence is not high enough to go full in MVFR/IFR. But, we have introduced a few-sct lower cloud layer to all terminals.

Barring low cloud cover around Saturday morning, VFR conditions are anticipated through the balance of the terminal forecast.

Extended Aviation Outlook: Prevailing VFR conditions are expected at CHS/JZI/SAV terminals through the middle of next week.

MARINE
Rest of the afternoon into this evening: Prevailing northeasterly winds over top the sea breeze continues to produce stout wind gusts along the South Carolina coast this afternoon including Charleston Harbor, with a few gusts in excess of 30 knots noted at Isle of Palms. Small Craft Advisory remains in effect for Charleston Harbor and the nearshore waters from South Santee River to Edisto until 8 PM. Winds will weaken this evening below SCA conditions.

Tonight: East winds around 15 kt will hold through the night.
Seas build under the persistent easterly flow and long fetch building to 3-5 ft and possibly as high as 6 ft late overnight and through much of the upcoming weekend in the Georgia offshore leg out 20-60 NM. We will be hoisting a Small Craft Advisory for that offshore leg starting at 4 AM early Saturday morning and continuing through Sunday afternoon.

Saturday through Tuesday: High pressure centered well north of the region will favor a long east-northeast fetch across local waters this weekend, and support seas building up to 6-7 ft across offshore Georgia waters, where a Small Craft Advisory remains in effect until late Sunday afternoon. Otherwise, marine conditions remain fairly quiet across remaining coastal waters with east-northeast winds peaking near 15-20 kt on Saturday slowly veering to south-southeast during the weekend and weakening to 10-15 kt or less early next week.

Rip Currents: Moderate onshore winds will continue through the weekend, while approximately 3 ft waves every 6-7 seconds reach the beaches. The local rip current calculator indicates a Moderate Risk of rip currents along all beaches Saturday, then lingering along the Georgia beaches Sunday.

CHS WATCHES/WARNINGS/ADVISORIES
GA...None.
SC...None.
MARINE...Small Craft Advisory until 8 PM EDT this evening for AMZ330- 350.
Small Craft Advisory from 4 AM Saturday to 6 PM EDT Sunday for AMZ374.

toggle option: (graph/table)

Bluffton
Click for Map
Fri -- 05:13 AM EDT     0.32 feet Low Tide
Fri -- 06:41 AM EDT     Sunrise
Fri -- 08:05 AM EDT     Moonset
Fri -- 11:16 AM EDT     7.45 feet High Tide
Fri -- 05:06 PM EDT     0.39 feet Low Tide
Fri -- 08:01 PM EDT     Sunset
Fri -- 11:01 PM EDT     Moonrise
Fri -- 11:33 PM EDT     8.66 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Bluffton, South Carolina (2), Tide feet

Savannah River Entrance
Click for Map
Fri -- 02:27 AM EDT     -1.96 knots Max Ebb
Fri -- 05:45 AM EDT     0.00 knots Slack
Fri -- 06:41 AM EDT     Sunrise
Fri -- 08:06 AM EDT     Moonset
Fri -- 08:11 AM EDT     1.85 knots Max Flood
Fri -- 11:34 AM EDT     -0.00 knots Slack
Fri -- 02:17 PM EDT     -1.68 knots Max Ebb
Fri -- 05:31 PM EDT     0.00 knots Slack
Fri -- 08:00 PM EDT     Sunset
Fri -- 08:19 PM EDT     2.10 knots Max Flood
Fri -- 11:01 PM EDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION

Savannah River Entrance, Georgia Current, knots

Full Color Weather Map

Link to Loop


Other links: GEOS-West     Contential US     Full GOES-East

Charleston, SC,