Alert archive / South Carolina / Small Craft Advisories in 2018

Small Craft Advisory 21, NWS Charleston, SC

March 21, 2018

NWS Charleston, SC issued this small craft advisory at Mar 21, 2018, 6:30 PM EDT. It took effect at Mar 21, 2018, 7:00 PM EDT. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Mar 21, 2018, 6:30 PM EDT (22:30 UTC)
In effect from
Mar 21, 2018, 7:00 PM EDT
Expired
Mar 22, 2018, 12:13 AM EDT
In force
5 hr
Issued by
NWS Charleston, SC

The text

As transmitted.

405 
WHUS72 KCHS 212230
MWWCHS

URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
630 PM EDT Wed Mar 21 2018

AMZ330-220600-
/O.EXP.KCHS.GL.W.0004.000000T0000Z-180321T2300Z/
/O.NEW.KCHS.SC.Y.0021.180321T2300Z-180322T0600Z/
Charleston Harbor-
630 PM EDT Wed Mar 21 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 2 AM EDT THURSDAY...
...GALE WARNING WILL EXPIRE AT 7 PM EDT THIS EVENING...

The National Weather Service in Charleston has issued a Small
Craft Advisory, which is in effect until 2 AM EDT Thursday.

* WINDS AND SEAS...Wind and or wave conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During a Small Craft Advisory, inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in
hazardous conditions.

&&

$$

AMZ350-352-354-220400-
/O.CON.KCHS.GL.W.0004.000000T0000Z-180322T0400Z/
Waters from South Santee River to Edisto Beach SC out 20 NM-
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-
630 PM EDT Wed Mar 21 2018

...GALE WARNING REMAINS IN EFFECT UNTIL MIDNIGHT EDT TONIGHT...

* WINDS...West 20 to 30 kt with gusts up to 35 kt.

* SEAS...4 to 7 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gale force winds are imminent or occurring. Mariners should alter
plans to avoid these hazardous conditions. Remain in port or seek
safe harbor.

&&

$$

AMZ374-220630-
/O.CON.KCHS.GL.W.0004.000000T0000Z-180322T0800Z/
Waters from Savannah GA to Altamaha Sound GA extending from 20 to
60 NM-
630 PM EDT Wed Mar 21 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EDT THURSDAY...

* WINDS...West 20 to 30 kt with gusts up to 40 kt.

* SEAS...6 to 9 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gale force winds are imminent or occurring. Mariners should alter
plans to avoid these hazardous conditions. Remain in port or seek
safe harbor.

&&

$$
2 follow-up statements
220 
WHUS72 KCHS 220145
MWWCHS

URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
945 PM EDT Wed Mar 21 2018

AMZ350-352-354-220600-
/O.EXT.KCHS.GL.W.0004.000000T0000Z-180322T0600Z/
Waters from South Santee River to Edisto Beach SC out 20 NM-
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-
945 PM EDT Wed Mar 21 2018

...GALE WARNING NOW IN EFFECT UNTIL 2 AM EDT THURSDAY...

* WINDS...West 20 to 30 kt with gusts up to 35 kt, mainly 15 to 20
  nm offshore.

* SEAS...4 to 6 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gale force winds are imminent or occurring. Mariners should alter
plans to avoid these hazardous conditions. Remain in port or seek
safe harbor.

&&

$$

AMZ374-220800-
/O.CON.KCHS.GL.W.0004.000000T0000Z-180322T0800Z/
Waters from Savannah GA to Altamaha Sound GA extending from 20 to
60 NM-
945 PM EDT Wed Mar 21 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EDT THURSDAY...

* WINDS...West 20 to 30 kt with gusts up to 40 kt.

* SEAS...6 to 9 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gale force winds are imminent or occurring. Mariners should alter
plans to avoid these hazardous conditions. Remain in port or seek
safe harbor.

&&

$$

AMZ330-220600-
/O.CON.KCHS.SC.Y.0021.000000T0000Z-180322T0600Z/
Charleston Harbor-
945 PM EDT Wed Mar 21 2018

...SMALL CRAFT ADVISORY REMAINS IN EFFECT UNTIL 2 AM EDT
THURSDAY...

* WINDS AND SEAS...Wind and or wave conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During a Small Craft Advisory, inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in
hazardous conditions.

&&

$$
340 
WHUS72 KCHS 220413
MWWCHS

URGENT - MARINE WEATHER MESSAGE
National Weather Service Charleston SC
1213 AM EDT Thu Mar 22 2018

AMZ350-352-354-221215-
/O.CAN.KCHS.GL.W.0004.000000T0000Z-180322T0600Z/
/O.NEW.KCHS.SC.Y.0022.180322T0413Z-180322T1400Z/
Waters from South Santee River to Edisto Beach SC out 20 NM-
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-
1213 AM EDT Thu Mar 22 2018

...SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 AM EDT THIS MORNING...
...GALE WARNING IS CANCELLED...

The National Weather Service in Charleston has issued a Small
Craft Advisory, which is in effect until 10 AM EDT this morning.
The Gale Warning has been cancelled.

* WINDS AND SEAS...Wind and or wave conditions will be hazardous 
  to small craft.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

During a Small Craft Advisory, inexperienced mariners, especially
those operating smaller vessels, should avoid navigating in
hazardous conditions.

&&

$$

AMZ330-220515-
/O.CAN.KCHS.SC.Y.0021.000000T0000Z-180322T0600Z/
Charleston Harbor-
1213 AM EDT Thu Mar 22 2018

...SMALL CRAFT ADVISORY IS CANCELLED...

The National Weather Service in Charleston has cancelled the
Small Craft Advisory.

$$

AMZ374-220800-
/O.CON.KCHS.GL.W.0004.000000T0000Z-180322T0800Z/
Waters from Savannah GA to Altamaha Sound GA extending from 20 to
60 NM-
1213 AM EDT Thu Mar 22 2018

...GALE WARNING REMAINS IN EFFECT UNTIL 4 AM EDT EARLY THIS
MORNING...

* WINDS...Northwest 20 to 25 kt with gusts up to 35 kt.

* SEAS...5 to 8 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Gale force winds are imminent or occurring. Mariners should alter
plans to avoid these hazardous conditions. Remain in port or seek
safe harbor.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 21, 3:25 AM EDTWind AdvisoryCHS16 hr

Nearby

Small Craft Advisories in South Carolina, 2018Every small craft advisory in 2018

Sources

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