IEM VTEC Product Browser
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2025 [KCHS] CHARLESTON Marine Dense Fog (MF) Advisory (Y) Number 11
Listing of Counties/Parishes/Zones Included in Product
RADAR Composite at Issuance Time
Storm Based Warning History
634 WHUS72 KCHS 150053 MWWCHS URGENT - MARINE WEATHER MESSAGE National Weather Service Charleston SC 853 PM EDT Fri Mar 14 2025 AMZ350-150900- /O.NEW.KCHS.MF.Y.0011.250315T0053Z-250315T1300Z/ /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T1700Z/ Waters from South Santee River to Edisto Beach SC out 20 NM- 853 PM EDT Fri Mar 14 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT SATURDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM SATURDAY TO 1 PM EDT MONDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1/2 NM or less. For the Small Craft Advisory, south winds 15 to 25 kt with gusts up to 30 kt and seas 6 to 9 ft expected. * WHERE...South Santee River to Edisto Beach out 20 NM. * WHEN...For the Dense Fog Advisory, until 9 AM EDT Saturday. For the Small Craft Advisory, from 7 PM Saturday to 1 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ AMZ330-150900- /O.NEW.KCHS.MF.Y.0011.250315T0053Z-250315T1300Z/ Charleston Harbor- 853 PM EDT Fri Mar 14 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT SATURDAY... * WHAT...Dense fog will reduce visibility to 1/2 NM or less. * WHERE...Charleston Harbor. * WHEN...Until 9 AM EDT Saturday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ AMZ352-150900- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T0700Z/ Waters from Edisto Beach SC to Savannah GA out 20 NM- 853 PM EDT Fri Mar 14 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM SATURDAY TO 3 AM EDT MONDAY... * WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 5 to 8 ft expected. * WHERE...Edisto Beach to Savannah out 20 NM. * WHEN...From 7 PM Saturday to 3 AM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ354-150900- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T0400Z/ Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 853 PM EDT Fri Mar 14 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM SATURDAY TO MIDNIGHT EDT SUNDAY NIGHT... * WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 7 ft expected. * WHERE...Savannah to Altamaha Sound out 20 NM. * WHEN...From 7 PM Saturday to midnight EDT Sunday night. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ374-150900- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T2300Z/ Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 853 PM EDT Fri Mar 14 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM SATURDAY TO 7 PM EDT MONDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and seas 7 to 10 ft expected. * WHERE...Savannah to Altamaha Sound from 20 to 60 NM. * WHEN...From 7 PM Saturday to 7 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
656 WHUS72 KCHS 150408 MWWCHS URGENT - MARINE WEATHER MESSAGE National Weather Service Charleston SC 1208 AM EDT Sat Mar 15 2025 AMZ350-151215- /O.CAN.KCHS.MF.Y.0011.000000T0000Z-250315T1300Z/ /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T1700Z/ Waters from South Santee River to Edisto Beach SC out 20 NM- 1208 AM EDT Sat Mar 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 1 PM EDT MONDAY... ...DENSE FOG ADVISORY IS CANCELLED... * WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 6 to 9 ft expected. * WHERE...South Santee River to Edisto Beach out 20 NM. * WHEN...From 7 PM this evening to 1 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ330-150515- /O.CAN.KCHS.MF.Y.0011.000000T0000Z-250315T1300Z/ Charleston Harbor- 1208 AM EDT Sat Mar 15 2025 ...DENSE FOG ADVISORY IS CANCELLED... $$ AMZ352-151215- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T0700Z/ Waters from Edisto Beach SC to Savannah GA out 20 NM- 1208 AM EDT Sat Mar 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 AM EDT MONDAY... * WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 5 to 8 ft expected. * WHERE...Edisto Beach to Savannah out 20 NM. * WHEN...From 7 PM this evening to 3 AM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ354-151215- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T0400Z/ Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 1208 AM EDT Sat Mar 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO MIDNIGHT EDT SUNDAY NIGHT... * WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 7 ft expected. * WHERE...Savannah to Altamaha Sound out 20 NM. * WHEN...From 7 PM this evening to midnight EDT Sunday night. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ374-151215- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T2300Z/ Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 1208 AM EDT Sat Mar 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 PM EDT MONDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and seas 7 to 10 ft expected. * WHERE...Savannah to Altamaha Sound from 20 to 60 NM. * WHEN...From 7 PM this evening to 7 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
Permalink to 202503150053-KCHS-WHUS72-MWWCHS
634 WHUS72 KCHS 150053 MWWCHS URGENT - MARINE WEATHER MESSAGE National Weather Service Charleston SC 853 PM EDT Fri Mar 14 2025 AMZ350-150900- /O.NEW.KCHS.MF.Y.0011.250315T0053Z-250315T1300Z/ /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T1700Z/ Waters from South Santee River to Edisto Beach SC out 20 NM- 853 PM EDT Fri Mar 14 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT SATURDAY... ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM SATURDAY TO 1 PM EDT MONDAY... * WHAT...For the Dense Fog Advisory, dense fog will reduce visibility to 1/2 NM or less. For the Small Craft Advisory, south winds 15 to 25 kt with gusts up to 30 kt and seas 6 to 9 ft expected. * WHERE...South Santee River to Edisto Beach out 20 NM. * WHEN...For the Dense Fog Advisory, until 9 AM EDT Saturday. For the Small Craft Advisory, from 7 PM Saturday to 1 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ AMZ330-150900- /O.NEW.KCHS.MF.Y.0011.250315T0053Z-250315T1300Z/ Charleston Harbor- 853 PM EDT Fri Mar 14 2025 ...DENSE FOG ADVISORY IN EFFECT UNTIL 9 AM EDT SATURDAY... * WHAT...Dense fog will reduce visibility to 1/2 NM or less. * WHERE...Charleston Harbor. * WHEN...Until 9 AM EDT Saturday. * IMPACTS...Low visibility will make navigation difficult. PRECAUTIONARY/PREPAREDNESS ACTIONS... If you must navigate, proceed with caution. Use proper fog signals. Make sure all running lights are on. Remember to use your radar and compass. && $$ AMZ352-150900- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T0700Z/ Waters from Edisto Beach SC to Savannah GA out 20 NM- 853 PM EDT Fri Mar 14 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM SATURDAY TO 3 AM EDT MONDAY... * WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 5 to 8 ft expected. * WHERE...Edisto Beach to Savannah out 20 NM. * WHEN...From 7 PM Saturday to 3 AM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ354-150900- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T0400Z/ Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 853 PM EDT Fri Mar 14 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM SATURDAY TO MIDNIGHT EDT SUNDAY NIGHT... * WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 7 ft expected. * WHERE...Savannah to Altamaha Sound out 20 NM. * WHEN...From 7 PM Saturday to midnight EDT Sunday night. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ374-150900- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T2300Z/ Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 853 PM EDT Fri Mar 14 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM SATURDAY TO 7 PM EDT MONDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and seas 7 to 10 ft expected. * WHERE...Savannah to Altamaha Sound from 20 to 60 NM. * WHEN...From 7 PM Saturday to 7 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
Permalink to 202503150408-KCHS-WHUS72-MWWCHS
656 WHUS72 KCHS 150408 MWWCHS URGENT - MARINE WEATHER MESSAGE National Weather Service Charleston SC 1208 AM EDT Sat Mar 15 2025 AMZ350-151215- /O.CAN.KCHS.MF.Y.0011.000000T0000Z-250315T1300Z/ /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T1700Z/ Waters from South Santee River to Edisto Beach SC out 20 NM- 1208 AM EDT Sat Mar 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 1 PM EDT MONDAY... ...DENSE FOG ADVISORY IS CANCELLED... * WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 6 to 9 ft expected. * WHERE...South Santee River to Edisto Beach out 20 NM. * WHEN...From 7 PM this evening to 1 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ330-150515- /O.CAN.KCHS.MF.Y.0011.000000T0000Z-250315T1300Z/ Charleston Harbor- 1208 AM EDT Sat Mar 15 2025 ...DENSE FOG ADVISORY IS CANCELLED... $$ AMZ352-151215- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T0700Z/ Waters from Edisto Beach SC to Savannah GA out 20 NM- 1208 AM EDT Sat Mar 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 3 AM EDT MONDAY... * WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 5 to 8 ft expected. * WHERE...Edisto Beach to Savannah out 20 NM. * WHEN...From 7 PM this evening to 3 AM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ354-151215- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T0400Z/ Waters from Savannah GA to Altamaha Sound GA out 20 NM, including Grays Reef National Marine Sanctuary- 1208 AM EDT Sat Mar 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO MIDNIGHT EDT SUNDAY NIGHT... * WHAT...South winds 15 to 25 kt with gusts up to 30 kt and seas 4 to 7 ft expected. * WHERE...Savannah to Altamaha Sound out 20 NM. * WHEN...From 7 PM this evening to midnight EDT Sunday night. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$ AMZ374-151215- /O.CON.KCHS.SC.Y.0026.250315T2300Z-250317T2300Z/ Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM- 1208 AM EDT Sat Mar 15 2025 ...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 7 PM THIS EVENING TO 7 PM EDT MONDAY... * WHAT...Southwest winds 15 to 25 kt with gusts up to 30 kt and seas 7 to 10 ft expected. * WHERE...Savannah to Altamaha Sound from 20 to 60 NM. * WHEN...From 7 PM this evening to 7 PM EDT Monday. * IMPACTS...Conditions will be hazardous to small craft. PRECAUTIONARY/PREPAREDNESS ACTIONS... Inexperienced mariners, especially those operating smaller vessels, should avoid navigating in hazardous conditions. && $$
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