505
WHUS72 KCHS 210543
MWWCHS

URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
143 AM EDT Thu Aug 21 2025

AMZ354-210645-
/O.CAN.KCHS.SC.Y.0050.000000T0000Z-250822T1800Z/
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
143 AM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY IS CANCELLED...

$$

AMZ350-211345-
/O.EXT.KCHS.SC.Y.0050.000000T0000Z-250821T2100Z/
Waters from South Santee River to Edisto Beach SC out 20 NM-
143 AM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 5 PM EDT THIS
AFTERNOON...

* WHAT...Seas 5 to 8 ft.

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

* WHEN...Until 5 PM EDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

AMZ352-211345-
/O.EXT.KCHS.SC.Y.0050.000000T0000Z-250821T1800Z/
Waters from Edisto Beach SC to Savannah GA out 20 NM-
143 AM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 2 PM EDT THIS
AFTERNOON...

* WHAT...Seas 4 to 6 ft.

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

* WHEN...Until 2 PM EDT this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

AMZ374-211345-
/O.EXT.KCHS.SC.Y.0050.000000T0000Z-250822T1200Z/
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
143 AM EDT Thu Aug 21 2025

...SMALL CRAFT ADVISORY NOW IN EFFECT UNTIL 8 AM EDT FRIDAY...

* WHAT...Seas 5 to 8 ft.

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

* WHEN...Until 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.

&&

$$