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Show Area Forecast Discussion - Charleston, SC (Charleston, SC Area) Selection: |
| #1228186 (Received by flhurricane at: 10:18 AM 26.Apr.2025) AFDCHS Area Forecast Discussion National Weather Service Charleston SC 1000 AM EDT Sat Apr 26 2025 .SYNOPSIS... A cold front will move through tonight, followed by high pressure through much of next week. && .NEAR TERM /THROUGH TONIGHT/... This morning, radar trends indicate that ongoing showers across the Midlands will track north of the forecast area. The updated forecast will indicate lower PoPs through early this afternoon. The observed 12Z KCHS sounding indicated a strong inversion centered at 780 mb with a convective temperature near 80 degrees. Recent runs of the HRRR indicates that isolated and scattered showers and thunderstorms may develop a bit later this afternoon and evening. The later timing seems on track given the strong inversion observed on the KCHS sounding. Through This Evening: A cold front will approach from the northwest, but will remain too distant to have a direct impact. Near term models show dewpoints pooling into the mid-upper 60s across much of southern South Carolina and down along the Georgia coast (behind the sea breeze) mid-late afternoon which will yield modest mixed- layered instability for late April. Dewpoints are progged to mix out into the mid-upper 50s across Southeast Georgia which will curtail the level of available instability even as highs there warm into the upper 80s/lower 90s. The best chances for scattered showers/tstms will occur across the Charleston Tri-County where the most favorable juxtaposition of moisture, instability and localized forcing along lingering convective outflows and the sea breeze will occur. Isolated showers/tstms could develop near/behind the sea breeze along the far southern South Carolina coast into parts of coastal Georgia late this afternoon/early evening before convection wanes with the onset of diurnal cooling. Pops will range from 40-50% across the Charleston Tri-County to 20-30% for areas north of I-16 into far southern South Carolina with 20% along coastal Georgia. The thermodynamic environment across far interior Southeast Georgia looks too poor to support anything meaningful with pops holding 10% or less. Modified soundings at both KCHS and KMKS support MLCAPE >2000 J/kg with WBZ heights as low as 11 kft and DCAPE just over 800 J/kg. These conditions could support an isolated strong to severe tstm with damaging winds and large hail. 0-6km bulk shear looks to peak 20-25 kt, so storms should remain pulse in nature, although some brief organization could occur where mesoscale boundary collisions occur. The risk for an isolated severe thunderstorm looks highest roughly along/northeast of Smoaks-Walterboro- Jacksonboro-Edisto Island line between 2 PM and 6 PM. This includes the entire Charleston Metro Area. Overnight: Warm and moist conditions for late April will prevail as a cold front approaches from the north. The front is targeted to be near the I-16 corridor by daybreak Sunday. A few showers could accompany the front, mainly across eastern portions of Berkeley County into upper Charleston County where low-level moisture will be the highest. Lows will range from the lower-mid 60s inland to around 70 at the beaches. && .SHORT TERM /SUNDAY THROUGH TUESDAY/... The front will remain stalled across southeast GA Sunday into Monday. On Sunday, southern SC will remain in the cool sector with highs around 80. Meanwhile, southeast GA could reach the upper 80s. Quite a bit more moisture will also reside near the front in southeast GA. Scattered afternoon convection is possible where the sea breeze intersects the frontal zone. On Monday we could again see a few showers or tstms across our southwestern zones, though with the surface high shifting south, the best forcing will be pushed just outside the forecast area. A deep layered ridge will build over the area on Tuesday, yielding dry weather and temps pushing into the mid 80s everywhere except the sea breeze cooled beaches. && .LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/... Deep ridging will produce above normal temperatures mid to late week. Dry weather expected Tuesday night through Wednesday night. Scattered diurnal convection will be possible beginning Thursday but particularly Friday as a cold front approaches. && .AVIATION /14Z SATURDAY THROUGH WEDNESDAY/... 26/12z TAF Discussion: KCHS/KJZI/KSAV: Thinking has not changed much since the 06z TAFs. Quiet conditions will prevail this morning with VFR conditions. Scattered showers/tstms are expected to develop near KCHS and KJZI later this afternoon during peak instability. VCTS was included 19-22z at KCHS and 20-23z at KJZI for now as timing is a bit uncertain. For KSAV, activity will be much more isolated and probabilities are too low to include a mention of tstms just yet. A cold front will cross KCHS and KJZI by 08-09z and KSAV closer to 12z Sunday. Extended Aviation Outlook: There is a possibility of fog and/or low stratus Sunday morning and Monday morning. && .MARINE... Today: The waters will remain along the western side of the Atlantic high pressure centered well offshore. The pattern favors another robust sea breeze along the land/sea interface and Charleston Harbor this afternoon. Winds could be as high as 15 kt with gusts to 20 kt. A few gusts could get close to 25 kt, but likely not frequent enough to warrant a Small Craft Advisory. Otherwise, winds will average 10-15 kt with seas 2-4 ft across the remainder of the coastal waters. A few strong tstms could move off the Charleston County coast late this afternoon and evening. Gusts in excess of 35 kt and hail could occur. Special Marine Warnings could be needed. Tonight: Southerly winds will persist, but will turn northerly across the northern waters late as a cold front drops south. Winds will remain below 15 kt with seas 2-4 ft. Sunday through Thursday: Sunday will feature NE flow over the waters as surface high pressure builds in from the northwest. A few 20 kt wind gusts will be possible in Charleston Harbor and the Charleston County nearshore waters, particularly in the afternoon with a sea breeze enhancement. For the remainder of the period, winds/seas will remain well below advisory criteria. Rip Currents: A 2 ft, 9 sec swell will persist today. Breezy conditions along the sea breeze coupled with peaking astronomical influences will support a high risk for all beaches today. Rip currents were reported Saturday afternoon at Tybee Island. A moderate risk is in place for the Georgia beaches for Sunday. && .TIDES/COASTAL FLOODING... Minor to moderate coastal flooding is possible with the evening high tides due to the elevated tides from the approaching new moon and perigee. For the Charleston Harbor gage, the astronomical tides rise above 6.5 ft MLLW with the evening tides through Wednesday. With the approaching surface high pressure Sunday and Monday, northeasterly to easterly surface flow may cause the waters to rise into minor flood stage (7.0 ft MLLW) with the evening high tides with a possibility for moderate flooding (7.5 ft MLLW) for the Sunday evening high tide. For the Fort Pulaski gage, minor flooding (9.5 ft MLLW) is possible with the Sunday evening high tide. Coastal Flood Advisories will be needed for portions of the coast. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...High Risk for Rip Currents until 8 PM EDT this evening for GAZ117- 119-139-141. SC...High Risk for Rip Currents until 8 PM EDT this evening for SCZ048>051. MARINE...None. && $$ |
| #1228167 (Received by flhurricane at: 6:00 AM 26.Apr.2025) AFDCHS Area Forecast Discussion National Weather Service Charleston SC 555 AM EDT Sat Apr 26 2025 .SYNOPSIS... A cold front will move through tonight, followed by high pressure through much of next week. && .NEAR TERM /THROUGH TONIGHT/... No major changes were needed for the sunrise update. Through This Evening: Convection moving across east-central Georgia up through parts of the CSRA, Midlands and Upstate will slowly weaken as cells push east this morning. This activity is being driven by forcing associate with pronounced shortwave energy that is passing through aloft. The shortwave is progged to push off the coast by mid-late morning with weak DAVA/subsidence spreading into the region with its passage. Heights will slowly rise through the day as subtropical ridging centered over northern Mexico builds east. Model cross sections reflect this with little in the way of synoptic forcing/UVVs noted. A cold front will approach from the northwest, but will remain too distant to have a direct impact. Near term models show dewpoints pooling into the mid-upper 60s across much of southern South Carolina and down along the Georgia coast (behind the sea breeze) mid-late afternoon which will yield modest mixed- layered instability for late April. Dewpoints are progged to mix out into the mid-upper 50s across Southeast Georgia which will curtail the level of available instability even as highs there warm into the upper 80s/lower 90s. The best chances for scattered showers/tstms will occur across the Charleston Tri-County where the most favorable juxtaposition of moisture, instability and localized forcing along lingering convective outflows and the sea breeze will occur. Isolated showers/tstms could develop near/behind the sea breeze along the far southern South Carolina coast into parts of coastal Georgia late this afternoon/early evening before convection wanes with the onset of diurnal cooling. Pops will range from 40-50% across the Charleston Tri-County to 20-30% for areas north of I-16 into far southern South Carolina with 20% along coastal Georgia. The thermodynamic environment across far interior Southeast Georgia looks too poor to support anything meaningful with pops holding 10% or less. Modified soundings at both KCHS and KMKS support MLCAPE >2000 J/kg with WBZ heights as low as 11 kft and DCAPE just over 800 J/kg. These conditions could support an isolated strong to severe tstm with damaging winds and large hail. 0-6km bulk shear looks to peak 20-25 kt, so storms should remain pulse in nature, although some brief organization could occur where mesoscale boundary collisions occur. The risk for an isolated severe thunderstorm looks highest roughly along/northeast of Smoaks-Walterboro- Jacksonboro-Edisto Island line between 2 PM and 6 PM. This includes the entire Charleston Metro Area. Overnight: Warm and moist conditions for late April will prevail as a cold front approaches from the north. The front is targeted to be near the I-16 corridor by daybreak Sunday. A few showers could accompany the front, mainly across eastern portions of Berkeley County into upper Charleston County where low-level moisture will be the highest. Lows will range from the lower-mid 60s inland to around 70 at the beaches. && .SHORT TERM /SUNDAY THROUGH TUESDAY/... The front will remain stalled across southeast GA Sunday into Monday. On Sunday, southern SC will remain in the cool sector with highs around 80. Meanwhile, southeast GA could reach the upper 80s. Quite a bit more moisture will also reside near the front in southeast GA. Scattered afternoon convection is possible where the sea breeze intersects the frontal zone. On Monday we could again see a few showers or tstms across our southwestern zones, though with the surface high shifting south, the best forcing will be pushed just outside the forecast area. A deep layered ridge will build over the area on Tuesday, yielding dry weather and temps pushing into the mid 80s everywhere except the sea breeze cooled beaches. && .LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/... Deep ridging will produce above normal temperatures mid to late week. Dry weather expected Tuesday night through Wednesday night. Scattered diurnal convection will be possible beginning Thursday but particularly Friday as a cold front approaches. && .AVIATION /10Z SATURDAY THROUGH WEDNESDAY/... 26/12z TAF Discussion: KCHS/KJZI/KSAV: Thinking has not changed much since the 06z TAFs. Quiet conditions will prevail this morning with VFR conditions. Scattered showers/tstms are expected to develop near KCHS and KJZI later this afternoon during peak instability. VCTS was included 19-22z at KCHS and 20-23z at KJZI for now as timing is a bit uncertain. For KSAV, activity will be much more isolated and probabilities are too low to include a mention of tstms just yet. A cold front will cross KCHS and KJZI by 08-09z and KSAV closer to 12z Sunday. Extended Aviation Outlook: There is a possibility of fog and/or low stratus Sunday morning and Monday morning. && .MARINE... Today: The waters will remain along the western side of the Atlantic high pressure centered well offshore. The pattern favors another robust sea breeze along the land/sea interface and Charleston Harbor this afternoon. Winds could be as high as 15 kt with gusts to 20 kt. A few gusts could get close to 25 kt, but likely not frequent enough to warrant a Small Craft Advisory. Otherwise, winds will average 10-15 kt with seas 2-4 ft across the remainder of the coastal waters. A few strong tstms could move off the Charleston County coast late this afternoon and evening. Gusts in excess of 35 kt and hail could occur. Special Marine Warnings could be needed. Tonight: Southerly winds will persist, but will turn northerly across the northern waters late as a cold front drops south. Winds will remain below 15 kt with seas 2-4 ft. Sunday through Thursday: Sunday will feature NE flow over the waters as surface high pressure builds in from the northwest. A few 20 kt wind gusts will be possible in Charleston Harbor and the Charleston County nearshore waters, particularly in the afternoon with a sea breeze enhancement. For the remainder of the period, winds/seas will remain well below advisory criteria. Rip Currents: A 2 ft, 9 sec swell will persist today. Breezy conditions along the sea breeze coupled with peaking astronomical influences will support a high risk for all beaches today. Rip currents were reported Saturday afternoon at Tybee Island. A moderate risk is in place for the Georgia beaches for Sunday. && .TIDES/COASTAL FLOODING... Minor to moderate coastal flooding is possible with the evening high tides due to the elevated tides from the approaching new moon and perigee. For the Charleston Harbor gage, the astronomical tides rise above 6.5 ft MLLW with the evening tides through Wednesday. With the approaching surface high pressure Sunday and Monday, northeasterly to easterly surface flow may cause the waters to rise into minor flood stage (7.0 ft MLLW) with the evening high tides with a possibility for moderate flooding (7.5 ft MLLW) for the Sunday evening high tide. For the Fort Pulaski gage, minor flooding (9.5 ft MLLW) is possible with the Sunday evening high tide. Coastal Flood Advisories will be needed for portions of the coast. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...High Risk for Rip Currents through this evening for GAZ117-119-139- 141. SC...High Risk for Rip Currents through this evening for SCZ048>051. MARINE...None. && $$ |
| #1228150 (Received by flhurricane at: 3:30 AM 26.Apr.2025) AFDCHS Area Forecast Discussion National Weather Service Charleston SC 316 AM EDT Sat Apr 26 2025 .SYNOPSIS... A cold front will move through tonight, followed by high pressure through much of next week. && .NEAR TERM /THROUGH TONIGHT/... Through This Evening: Convection moving across east-central Georgia up through parts of the CSRA, Midlands and Upstate will slowly weaken as cells push east this morning. This activity is being driven by forcing associate with pronounced shortwave energy that is passing through aloft. The shortwave is progged to push off the coast by mid-late morning with weak DAVA/subsidence spreading into the region with its passage. Heights will slowly rise through the day as subtropical ridging centered over northern Mexico builds east. Model cross sections reflect this with little in the way of synoptic forcing/UVVs noted. A cold front will approach from the northwest, but will remain too distant to have a direct impact. Near term models show dewpoints pooling into the mid-upper 60s across much of southern South Carolina and down along the Georgia coast (behind the sea breeze) mid-late afternoon which will yield modest mixed- layered instability for late April. Dewpoints are progged to mix out into the mid-upper 50s across Southeast Georgia which will curtail the level of available instability even as highs there warm into the upper 80s/lower 90s. The best chances for scattered showers/tstms will occur across the Charleston Tri-County where the most favorable juxtaposition of moisture, instability and localized forcing along lingering convective outflows and the sea breeze will occur. Isolated showers/tstms could develop near/behind the sea breeze along the far southern South Carolina coast into parts of coastal Georgia late this afternoon/early evening before convection wanes with the onset of diurnal cooling. Pops will range from 40-50% across the Charleston Tri-County to 20-30% for areas north of I-16 into far southern South Carolina with 20% along coastal Georgia. The thermodynamic environment across far interior Southeast Georgia looks too poor to support anything meaningful with pops holding 10% or less. Modified soundings at both KCHS and KMKS support MLCAPE >2000 J/kg with WBZ heights as low as 11 kft and DCAPE just over 800 J/kg. These conditions could support an isolated strong to severe tstm with damaging winds and large hail. 0-6km bulk shear looks to peak 20-25 kt, so storms should remain pulse in nature, although some brief organization could occur where mesoscale boundary collisions occur. The risk for an isolated severe thunderstorm looks highest roughly along/northeast of Smoaks-Walterboro- Jacksonboro-Edisto Island line between 2 PM and 6 PM. This includes the entire Charleston Metro Area. Overnight: Warm and moist conditions for late April will prevail as a cold front approaches from the north. The front is targeted to be near the I-16 corridor by daybreak Sunday. A few showers could accompany the front, mainly across eastern portions of Berkeley County into upper Charleston County where low-level moisture will be the highest. Lows will range from the lower-mid 60s inland to around 70 at the beaches. && .SHORT TERM /SUNDAY THROUGH TUESDAY/... The front will remain stalled across southeast GA Sunday into Monday. On Sunday, southern SC will remain in the cool sector with highs around 80. Meanwhile, southeast GA could reach the upper 80s. Quite a bit more moisture will also reside near the front in southeast GA. Scattered afternoon convection is possible where the sea breeze intersects the frontal zone. On Monday we could again see a few showers or tstms across our southwestern zones, though with the surface high shifting south, the best forcing will be pushed just outside the forecast area. A deep layered ridge will build over the area on Tuesday, yielding dry weather and temps pushing into the mid 80s everywhere except the sea breeze cooled beaches. && .LONG TERM /TUESDAY NIGHT THROUGH FRIDAY/... Deep ridging will produce above normal temperatures mid to late week. Dry weather expected Tuesday night through Wednesday night. Scattered diurnal convection will be possible beginning Thursday but particularly Friday as a cold front approaches. && .AVIATION /05Z SATURDAY THROUGH WEDNESDAY/... 26/06z TAF Discussion: KCHS/KJZI/KSAV: Some shallow ground fog could impact all terminals through daybreak, but most likely at KJZI. A TEMPO group for 4SM MIFG was included 09-12z at KJZI to account for this. Quiet conditions will prevail this morning with VFR conditions. Scattered showers/tstms are expected to develop near KCHS and KJZI later this afternoon during peak instability. VCTS was included 19-22z at KCHS and 20-23z at KJZI for now as timing is a bit uncertain. The need for anything more will be reevaluated at 12z. For KSAV, activity will be much more isolated and probabilities are too low to include a mention of tstms just yet. Extended Aviation Outlook: There is a possibility of fog and/or low stratus Sunday morning and Monday morning. && .MARINE... Today: The waters will remain along the western side of the Atlantic high pressure centered well offshore. The pattern favors another robust sea breeze along the land/sea interface and Charleston Harbor this afternoon. Winds could be as high as 15 kt with gusts to 20 kt. A few gusts could get close to 25 kt, but likely not frequent enough to warrant a Small Craft Advisory. Otherwise, winds will average 10-15 kt with seas 2-4 ft across the remainder of the coastal waters. A few strong tstms could move off the Charleston County coast late this afternoon and evening. Gusts in excess of 35 kt and hail could occur. Special Marine Warnings could be needed. Tonight: Southerly winds will persist, but will turn northerly across the northern waters late as a cold front drops south. Winds will remain below 15 kt with seas 2-4 ft. Sunday through Thursday: Sunday will feature NE flow over the waters as surface high pressure builds in from the northwest. A few 20 kt wind gusts will be possible in Charleston Harbor and the Charleston County nearshore waters, particularly in the afternoon with a sea breeze enhancement. For the remainder of the period, winds/seas will remain well below advisory criteria. Rip Currents: A 2 ft, 9 sec swell will persist today. Breezy conditions along the sea breeze coupled with peaking astronomical influences will support a high risk for all beaches today. Rip currents were reported Saturday afternoon at Tybee Island. A moderate risk is in place for the Georgia beaches for Sunday. && .TIDES/COASTAL FLOODING... Minor to moderate coastal flooding is possible with the evening high tides due to the elevated tides from the approaching new moon and perigee. For the Charleston Harbor gage, the astronomical tides rise above 6.5 ft MLLW with the evening tides through Wednesday. With the approaching surface high pressure Sunday and Monday, northeasterly to easterly surface flow may cause the waters to rise into minor flood stage (7.0 ft MLLW) with the evening high tides with a possibility for moderate flooding (7.5 ft MLLW) for the Sunday evening high tide. For the Fort Pulaski gage, minor flooding (9.5 ft MLLW) is possible with the Sunday evening high tide. Coastal Flood Advisories will be needed for portions of the coast. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...High Risk for Rip Currents from 8 AM EDT this morning through this evening for GAZ117-119-139-141. SC...High Risk for Rip Currents from 8 AM EDT this morning through this evening for SCZ048>051. MARINE...None. && $$ |
| #1228132 (Received by flhurricane at: 12:30 AM 26.Apr.2025) AFDCHS Area Forecast Discussion National Weather Service Charleston SC 1221 AM EDT Sat Apr 26 2025 .SYNOPSIS... A cold front approaches on Saturday with a chance of showers and thunderstorms. High pressure will build into the region after the passage of the front on Sunday and into next week. && .NEAR TERM /UNTIL 6 AM THIS MORNING/... A quiet and seasonably warm night is in progress across Southeast South Carolina and Southeast Georgia. Dry conditions will prevail for most areas through the night, although a few hours may approach the far western areas around daybreak. Lows from the lower 60s inland to around 70 at the beaches look on track. No major changes were made for the midnight update. && .SHORT TERM /6 AM THIS MORNING THROUGH MONDAY/... Saturday: Large-scale ridging across the United States will persist, as a shortwave situates itself overhead and slowly moves east and eventually off the eastern seaboard overnight. Heights will increase throughout the day as the aforementioned ridging nudges closer. With the shortwave departure overhead, there is some signaling of instability firing up in the afternoon. Latest HREF suggests CAPE values ~1500 J/kg in the afternoon with 0-3 SRH values ~100-150 m^2/m^2 (some pockets of 200m^2/s^2). This combined with a potential afternoon seabreeze could stir up some convection (especially over interior southeastern South Carolina). PoPs were increased to 40-60% in the afternoon for the Charleston Tri-County due to it being a more favorable environment than the rest of the region. However, rainfall amounts remain low, most areas will only see 0.05 to 0.10 inches with regions more inland seeing 0.15 inches at best. Highs will be in the mid to upper 80s in southeastern South Carolina and upper 80s to low 90s in southeastern Georgia with cooler temperatures closer to the coastline. Overnight lows will drop into the low to mid 60s and upper 60/low 70s closer to the coastline. Sunday: As the aforementioned shortwave shifts off the Northeast coast in the morning, an associated cold front passes through to the south of the region. Some models are indicating that the front will stall across southern Georgia to near the Florida state line in the evening as a cyclonic flow persists aloft. It is possible to see some showers and thunderstorms with this frontal passage as the afternoon seabreeze could force some convection develop. Behind the front, high pressure situated over the Midwest begins to build into the region. Left PoPs in the 20-30% for southeastern Georgia, might need to increase later on but will wait how things change in the next day or so. Highs will warm into the low to mid 80s across southeastern South Carolina and upper 80s to low 90s across southeastern Georgia with cooler temperatures closer to the coastline. A bit cooler on Sunday night partially due to the high pressure building in behind the front and clearing out the skies allowing good radiational cooling to occur. Lows will dip into the upper 50s to low 60s with it being a tad warmer along the beaches. Monday: A tropical ridge centered over Mexico will begin to shift eastward over the Gulf and Southeast CONUS. It doesn`t look like a very favorable environment for any showers and/or thunderstorms to pop up, thus PoPs were lowered. Highs will climb into upper 70s to low 80s with cooler temperatures along the coastline. && .LONG TERM /MONDAY NIGHT THROUGH FRIDAY/... As an Atlantic high pressure nudges closer, subtropical ridging will dominate aloft. Most of the extended period will remain quite until Friday afternoon when the next chance for showers is expected. Temperatures will hold at or slightly above normal levels for late April. Resultant sea breeze influences are likely each afternoon/evening. && .AVIATION /04Z SATURDAY THROUGH WEDNESDAY/... 26/06z TAF Discussion: KCHS/KJZI/KSAV: Some shallow ground fog could impact all terminals through daybreak, but most likely at KJZI. A TEMPO group for 4SM MIFG was included 09-12z at KJZI to account for this. Quiet conditions will prevail this morning with VFR conditions. Scattered showers/tstms are expected to develop near KCHS and KJZI later this afternoon during peak instability. VCTS was included 19-22z at KCHS and 20-23z at KJZI for now as timing is a bit uncertain. The need for anything more will be reevaluated at 12z. For KSAV, activity will be much more isolated and probabilities are too low to include a mention of tstms just yet. Extended Aviation: There is a possibility of fog and/or low stratus Sunday morning Gusty winds are possible each afternoon with the passage of the resultant sea breeze. && .MARINE... Tonight:The local waters will remain situated on the western side of a huge Atlantic high. The gradient will stay fairly lax, as SE and S winds around 10 kt early on, veer around to the S and SW at similar speeds due to land breeze influences overnight. The wave spectrum will be mainly due to swells, and will average 2-4 feet, highest on the outer Georgia waters. Saturday through Wednesday: Expect southerly winds to persist Saturday before turning northerly with the passage of the cold front on Sunday. On Monday, northeasterly winds will gradually veer easterly, and then southerly Tuesday and Wednesday. Marine conditions look to remain calm, however gust to 15 to 20 kt with the afternoon/evening sea breeze each day. Seas will generally be from 2 to 3 ft, except build 3 to 5 ft on Monday and Tuesday due to post FROPA (especially for the outer Georgia waters). Rip Currents: A 2 ft, 9 sec easterly swell will persist into Saturday. These conditions combined with enhanced winds along the land/sea interface with the sea breeze and the approaching new moon will support a high risk for rip currents along the Charleston County and Beaufort County beaches with a moderate risk for southeast Georgia beaches on Saturday. The risk deescalates some on Sunday, expect low risk for rip currents along Charleston County and Beaufort County beaches with a moderate risk for southeast Georgia beaches. && .TIDES/COASTAL FLOODING... Minor to moderate coastal flooding is possible with the evening high tides due to the elevated tides from the approaching new moon and perigee. For the Charleston Harbor gage, the astronomical tides rise above 6.5 ft MLLW with the evening tides Saturday through Wednesday. With the approaching surface high pressure Sunday and Monday, northeasterly to easterly surface flow may cause the waters to rise into minor flood stage (7.0 ft MLLW) with the evening high tides with a possibility for moderate flooding (7.5 ft MLLW) for the Sunday evening high tide. For the Fort Pulaski gage, minor flooding (9.5 ft MLLW) is possible with the Sunday evening high tide. Coastal Flood Advisories will be needed for portions of the coast. && .CHS WATCHES/WARNINGS/ADVISORIES... GA...None. SC...High Risk for Rip Currents from 8 AM EDT this morning through this evening for SCZ048>051. MARINE...None. && $$ |
