446
WHUS72 KCHS 181108
MWWCHS

URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
708 AM EDT Mon Aug 18 2025

AMZ350-181915-
/O.CON.KCHS.SC.Y.0050.250819T0800Z-250822T0000Z/
Waters from South Santee River to Edisto Beach SC out 20 NM-
708 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TUESDAY TO
8 PM EDT THURSDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and
  seas 7 to 12 ft expected.

* WHERE...South Santee River to Edisto Beach out 20 NM.

* WHEN...From 4 AM Tuesday to 8 PM EDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

AMZ352-181915-
/O.CON.KCHS.SC.Y.0050.250819T0800Z-250822T0000Z/
Waters from Edisto Beach SC to Savannah GA out 20 NM-
708 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TUESDAY TO
8 PM EDT THURSDAY...

* WHAT...North winds 10 to 20 kt with gusts up to 25 kt and seas
  6 to 11 ft expected.

* WHERE...Edisto Beach to Savannah out 20 NM.

* WHEN...From 4 AM Tuesday to 8 PM EDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

AMZ354-181915-
/O.CON.KCHS.SC.Y.0050.250819T0800Z-250822T0000Z/
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
708 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 4 AM TUESDAY TO
8 PM EDT THURSDAY...

* WHAT...Northeast winds 10 to 20 kt with gusts up to 25 kt and
  seas 6 to 11 ft expected.

* WHERE...Savannah to Altamaha Sound out 20 NM.

* WHEN...From 4 AM Tuesday to 8 PM EDT Thursday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$

AMZ374-181915-
/O.CON.KCHS.SC.Y.0050.250819T0400Z-250822T1200Z/
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
708 AM EDT Mon Aug 18 2025

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT
TO 8 AM EDT FRIDAY...

* WHAT...Northeast winds 15 to 25 kt with gusts up to 30 kt and
  seas 8 to 13 ft expected.

* WHERE...Savannah to Altamaha Sound from 20 to 60 NM.

* WHEN...From midnight tonight to 8 AM EDT Friday.

* IMPACTS...Conditions will be hazardous to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Inexperienced mariners, especially those operating smaller
vessels, should avoid navigating in hazardous conditions.

&&

$$