Alert archive / South Carolina / Special Marine Warnings in 2021

Special Marine Warning 14, NWS Charleston, SC

March 18, 2021

NWS Charleston, SC issued this special marine warning at Mar 18, 2021, 6:26 PM EDT. It was in force for 64 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Mar 18, 2021, 6:26 PM EDT (22:26 UTC)
Expired: Mar 18, 2021, 7:30 PM EDT
In force: 64 min
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Hail: 0.0 in
Wind: 34.0 mph

What forecasters said that day

The local office's own words before this special marine warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Charleston, SC wrote its last area forecast discussion before this special marine warning went out at Mar 18, 3:50 PM EDT, 2 hours 36 minutes earlier.

Area forecast discussion, Mar 18, 3:50 PM EDT, 2 hours 36 minutes before

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Hazardous weather outlook, Mar 18, 6:16 PM EDT, 10 minutes before

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In the hours before

Local storm report, Mar 18, 4:53 PM EDT, 1 hour 33 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
453 PM EDT THU MAR 18 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0434 PM     MARINE TSTM WIND 4 ESE CHARLESTON        32.75N  79.87W
03/18/2021  M52 MPH          AMZ330             SC   MESONET

&&

EVENT NUMBER CHS2100066

CHS

Local storm report, Mar 18, 5:06 PM EDT, 1 hour 20 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
506 PM EDT THU MAR 18 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0449 PM     HEAVY RAIN       2 W MOUNT PLEASANT      32.79N  79.89W
03/18/2021  U0.00 INCH       CHARLESTON         SC   LAW ENFORCEMENT

            THE RIGHT LANE ON WEST COLEMAN BLVD AT GARLAND ROAD IS
            CLOSED DUE TO WATER ON THE ROAD.

&&

EVENT NUMBER CHS2100067

CHS

Local storm report, Mar 18, 5:28 PM EDT, 58 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
528 PM EDT THU MAR 18 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0450 PM     HEAVY RAIN       6 ENE SULLIVANS ISLAND  32.78N  79.74W
03/18/2021  U0.00 INCH       AMZ350             SC   LAW ENFORCEMENT

            MULTIPLE STREETS ACROSS DOWNTOWN CHARLESTON WERE CLOSED
            DUE TO FLOODING, INCLUDING THE CANNON PARK AREA AND
            PORTIONS OF EAST BAY STREET.

&&

EVENT NUMBER CHS2100068

CHS

Local storm report, Mar 18, 5:32 PM EDT, 54 minutes before

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE CHARLESTON SC
532 PM EDT THU MAR 18 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0459 PM     HEAVY RAIN       4 ENE MOUNT PLEASANT    32.81N  79.80W
03/18/2021  M2.00 INCH       CHARLESTON         SC   SOCIAL MEDIA

            SOCIAL MEDIA PICTURE SHOWS NEARLY 2 INCHES IN A RAIN
            GAUGE. RAINFALL OCCURRED IN ONE HOUR.

&&

EVENT NUMBER CHS2100069

CHS

Local storm report, Mar 18, 5:47 PM EDT, 39 minutes before

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Local storm report, Mar 18, 5:49 PM EDT, 37 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 18, 6:11 AM EDT	Marine Dense Fog Advisory	CHS		4 hr
Mar 18, 2:55 PM EDT	Tornado Warning	CHS	Jasper	21 min
Mar 18, 4:08 PM EDT	Areal Flood Advisory	CHS	Charleston	52 min
Mar 18, 4:36 PM EDT	Special Marine Warning	CHS		54 min
Mar 18, 5:30 PM EDT	Special Marine Warning	CHS		60 min
Mar 18, 5:33 PM EDT	Special Marine Warning	CHS		24 min
Mar 18, 1:47 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Liberty, Long, Tattnall	43 min

Nearby

Special Marine Warnings in South Carolina, 2021 Every special marine warning 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.