Alert archive / South Carolina / Small Craft Advisories in 2021

Small Craft Advisory 29, NWS Charleston, SC

March 31, 2021

NWS Charleston, SC issued this small craft advisory at Mar 31, 2021, 2:05 PM EDT. It was in force for 6 hr.

The area

The counties it named.

The facts

Issued: Mar 31, 2021, 2:05 PM EDT (18:05 UTC)
Expired: Mar 31, 2021, 8:00 PM EDT
In force: 6 hr
Issued by: NWS Charleston, SC

The text

As transmitted.

628 
WHUS72 KCHS 311805
MWWCHS

URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
205 PM EDT Wed Mar 31 2021

AMZ330-010000-
/O.NEW.KCHS.SC.Y.0029.210331T1805Z-210401T0000Z/
Charleston Harbor-
205 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 8 PM EDT THIS EVENING...

* WHAT...South winds 15 to 20 kt with gusts up to 25 kt and 
  waves 1 to 2 feet.

* WHERE...Charleston Harbor.

* WHEN...Until 8 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

AMZ354-010215-
/O.EXA.KCHS.MF.Y.0012.000000T0000Z-210331T2200Z/
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210402T1200Z/
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
205 PM EDT Wed Mar 31 2021

...DENSE FOG ADVISORY IN EFFECT UNTIL 6 PM EDT THIS EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
8 AM EDT FRIDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce 
  visibility to 1/4 to 1/2 NM. For the Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 
  to 5 ft expected.

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

* WHEN...For the Dense Fog Advisory, until 6 PM EDT this 
  evening. For the Small Craft Advisory, from 6 AM Thursday to 8 
  AM EDT Friday.

* 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.

&&

$$

AMZ350-010215-
/O.CON.KCHS.MF.Y.0012.000000T0000Z-210331T2200Z/
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210402T1600Z/
Waters from South Santee River to Edisto Beach SC out 20 NM-
205 PM EDT Wed Mar 31 2021

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
NOON EDT FRIDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce 
  visibility to 1/4 to 1/2 NM. For the Small Craft Advisory, 
  northwest winds 15 to 20 kt with gusts up to 30 kt and seas 3 
  to 5 ft expected.

* WHERE...South Santee River to Edisto Beach out 20 NM. The dense
  fog will primarily remain within 5 NM of shore.

* WHEN...For the Dense Fog Advisory, until 6 PM EDT this 
  evening. For the Small Craft Advisory, from 6 AM Thursday to 
  noon EDT Friday.

* 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.

&&

$$

AMZ352-010215-
/O.CON.KCHS.MF.Y.0012.000000T0000Z-210331T2200Z/
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210402T1200Z/
Waters from Edisto Beach SC to Savannah GA out 20 NM-
205 PM EDT Wed Mar 31 2021

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
8 AM EDT FRIDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce 
  visibility to 1/4 to 1/2 NM. For the Small Craft Advisory, 
  northwest winds 15 to 20 kt with gusts up to 25 kt and seas 3 
  to 5 ft expected.

* WHERE...Edisto Beach to Savannah out 20 NM. The dense fog will
  primarily be within 5 NM of shore.

* WHEN...For the Dense Fog Advisory, until 6 PM EDT this 
  evening. For the Small Craft Advisory, from 6 AM Thursday to 8 
  AM EDT Friday.

* 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.

&&

$$

AMZ374-010215-
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210403T0000Z/
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
205 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
8 PM EDT FRIDAY...

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

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

* WHEN...From 6 AM Thursday to 8 PM 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.

&&

$$

3 follow-up statements

621 
WHUS72 KCHS 311929
MWWCHS

URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
329 PM EDT Wed Mar 31 2021

AMZ350-010330-
/O.CAN.KCHS.MF.Y.0012.000000T0000Z-210331T2200Z/
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210402T1600Z/
Waters from South Santee River to Edisto Beach SC out 20 NM-
329 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
NOON EDT FRIDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  3 to 5 ft expected.

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

* WHEN...From 6 AM Thursday to noon 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.

&&

$$

AMZ352-354-010330-
/O.CON.KCHS.MF.Y.0012.000000T0000Z-210331T2200Z/
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210402T1200Z/
Waters from Edisto Beach SC to Savannah GA out 20 NM-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
329 PM EDT Wed Mar 31 2021

...DENSE FOG ADVISORY REMAINS IN EFFECT UNTIL 6 PM EDT THIS
EVENING...
...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
8 AM EDT FRIDAY...

* WHAT...For the Dense Fog Advisory, dense fog will reduce 
  visibility to 1/4 to 1/2 NM. For the Small Craft Advisory, 
  northwest winds 15 to 25 kt with gusts up to 30 kt and seas 3 
  to 5 ft expected.

* WHERE...Edisto Beach to Savannah out 20 NM and Savannah to
  Altamaha Sound out 20 NM. The fog will generally be within 10 NM
  of shore.

* WHEN...For the Dense Fog Advisory, until 6 PM EDT this 
  evening. For the Small Craft Advisory, from 6 AM Thursday to 8 
  AM EDT Friday.

* 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.

&&

$$

AMZ374-010330-
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210403T0000Z/
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
329 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
8 PM EDT FRIDAY...

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

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

* WHEN...From 6 AM Thursday to 8 PM 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.

&&

$$

AMZ330-010000-
/O.CON.KCHS.SC.Y.0029.000000T0000Z-210401T0000Z/
Charleston Harbor-
329 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...South winds 15 to 20 kt with gusts up to 25 kt and waves
  1 to 2 feet.

* WHERE...Charleston Harbor.

* WHEN...Until 8 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

683 
WHUS72 KCHS 312201
MWWCHS

URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
601 PM EDT Wed Mar 31 2021

AMZ352-354-010615-
/O.EXP.KCHS.MF.Y.0012.000000T0000Z-210331T2200Z/
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210402T1200Z/
Waters from Edisto Beach SC to Savannah GA out 20 NM-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
601 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
8 AM EDT FRIDAY...
...DENSE FOG ADVISORY HAS EXPIRED...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and 
  seas 3 to 5 ft expected.

* WHERE...Edisto Beach to Savannah out 20 NM and Savannah to 
  Altamaha Sound out 20 NM.

* WHEN...From 6 AM Thursday 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.

&&

$$

AMZ374-010615-
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210403T0000Z/
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
601 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
8 PM EDT FRIDAY...

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

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

* WHEN...From 6 AM Thursday to 8 PM 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.

&&

$$

AMZ350-010615-
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210402T1600Z/
Waters from South Santee River to Edisto Beach SC out 20 NM-
601 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
NOON EDT FRIDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  3 to 5 ft expected.

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

* WHEN...From 6 AM Thursday to noon 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.

&&

$$

AMZ330-010000-
/O.CON.KCHS.SC.Y.0029.000000T0000Z-210401T0000Z/
Charleston Harbor-
601 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 8 PM EDT THIS
EVENING...

* WHAT...South winds around 20 kt with gusts up to 25 kt and 
  waves 1 to 2 feet.

* WHERE...Charleston Harbor.

* WHEN...Until 8 PM EDT this evening.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

718 
WHUS72 KCHS 312348
MWWCHS

URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
748 PM EDT Wed Mar 31 2021

AMZ330-010100-
/O.EXP.KCHS.SC.Y.0029.000000T0000Z-210401T0000Z/
Charleston Harbor-
748 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY WILL EXPIRE AT 8 PM EDT THIS EVENING...

$$

AMZ374-010800-
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210403T0000Z/
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
748 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
8 PM EDT FRIDAY...

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

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

* WHEN...From 6 AM Thursday to 8 PM 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.

&&

$$

AMZ350-010800-
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210402T1600Z/
Waters from South Santee River to Edisto Beach SC out 20 NM-
748 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
NOON EDT FRIDAY...

* WHAT...North winds 15 to 25 kt with gusts up to 30 kt and seas 
  3 to 5 ft expected.

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

* WHEN...From 6 AM Thursday to noon 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.

&&

$$

AMZ352-354-010800-
/O.CON.KCHS.SC.Y.0028.210401T1000Z-210402T1200Z/
Waters from Edisto Beach SC to Savannah GA out 20 NM-
Waters from Savannah GA to Altamaha Sound GA out 20 NM, including
Grays Reef National Marine Sanctuary-
748 PM EDT Wed Mar 31 2021

...SMALL CRAFT ADVISORY REMAINS IN EFFECT FROM 6 AM THURSDAY TO
8 AM EDT FRIDAY...

* WHAT...Northwest winds 15 to 25 kt with gusts up to 30 kt and 
  seas 3 to 5 ft expected.

* WHERE...Edisto Beach to Savannah out 20 NM and Savannah to 
  Altamaha Sound out 20 NM.

* WHEN...From 6 AM Thursday 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.

&&

$$

The office that day

Everything else NWS Charleston, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Mar 30, 9:08 PM EDT	Coastal Flood Statement	CHS		3 hr
Mar 31, 3:17 AM EDT	Small Craft Advisory	CHS		65 hr
Mar 31, 11:32 AM EDT	Marine Dense Fog Advisory	CHS		6 hr
Mar 31, 4:04 PM EDT	Special Weather Statement	CHS	Allendale	26 min
Mar 31, 4:26 PM EDT	Special Weather Statement	CHS	Allendale	34 min
Mar 31, 4:57 PM EDT	Special Weather Statement	CHS	Dorchester	33 min
Mar 31, 5:32 PM EDT	Severe Thunderstorm Warning	CHS	Colleton, Dorchester	58 min
Mar 31, 5:58 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Colleton, Dorchester	62 min
Mar 31, 6:37 PM EDT	Special Weather Statement	CHS	Berkeley	23 min
Mar 31, 7:34 PM EDT	Special Weather Statement	CHS	Berkeley	26 min
Mar 31, 7:37 PM EDT	Special Weather Statement	CHS	Colleton	23 min
Mar 31, 7:53 PM EDT	Severe Thunderstorm Warning	CHS	Berkeley, Charleston	67 min
Mar 31, 7:54 PM EDT	Severe Thunderstorm Warning	CHS	Charleston, Colleton, Dorchester	66 min

Nearby

Small Craft Advisories in South Carolina, 2021 Every small craft advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.