Alert archive / South Carolina / Special Marine Warnings in 2021

Special Marine Warning 73, NWS Charleston, SC

July 22, 2021

NWS Charleston, SC issued this special marine warning at Jul 22, 2021, 2:10 PM EDT. It was in force for 32 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: Jul 22, 2021, 2:10 PM EDT (18:10 UTC)
Expired: Jul 22, 2021, 2:42 PM EDT
In force: 32 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 Jul 22, 1:47 PM EDT, 23 minutes earlier.

Area forecast discussion, Jul 22, 1:47 PM EDT, 23 minutes before

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Hazardous weather outlook, Jul 22, 10:01 AM EDT, 4 hours 9 minutes before

Hazardous Weather Outlook
National Weather Service Charleston SC
1001 AM EDT Thu Jul 22 2021

GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047-048-051-052-
231415-
Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-
Inland Bryan-Coastal Bryan-Inland Chatham-Coastal Chatham-Long-
Inland Liberty-Coastal Liberty-Inland McIntosh-Coastal McIntosh-
Allendale-Hampton-Inland Colleton-Dorchester-Inland Berkeley-
Inland Jasper-Beaufort-Coastal Jasper-Tidal Berkeley-
1001 AM EDT Thu Jul 22 2021

This Hazardous Weather Outlook is for southeast Georgia and
southeast South Carolina.

.DAY ONE...Today and tonight.

Heavy Rainfall: Numerous showers and thunderstorms will develop
during the afternoon hours and persist into the early evening. Minor
flooding of low-lying and poor drainage areas is possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

SCZ049-050-231415-
Coastal Colleton-Charleston-
1001 AM EDT Thu Jul 22 2021

This Hazardous Weather Outlook is for southeast South Carolina.

.DAY ONE...Today and tonight.

Heavy Rainfall: Numerous showers and thunderstorms will develop
during the afternoon hours and persist into the early evening. Heavy
rainfall rates could produce minor flooding of low-lying and poor
drainage areas. Also, heavy rain could persist around the time of
the evening high tide, and this could enhance the potential for
localized flooding near the coast, including downtown Charleston.

Coastal Flooding: The evening high tides could produce minor salt
water inundation in Charleston County this evening. A Coastal Flood
Advisory is possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Coastal Flooding: Evening high tides are forecast to produce minor
salt water inundation late this week through the weekend. Coastal
Flood Advisories could be required.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

AMZ330-350-352-354-374-231415-
Charleston Harbor-
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-
Waters from Savannah GA to Altamaha Sound GA from 20 to 60 NM-
1001 AM EDT Thu Jul 22 2021

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...Today and tonight.

Strong thunderstorms: Thunderstorms could produce locally hazardous
conditions, including gusty winds, frequent lighting and poor
visibility in some marine areas this afternoon into this evening.
Remain alert for Special Marine Warnings.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

The office that day

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

Issued	Product	Office	Counties	Lasted
Jul 22, 2:06 PM EDT	Areal Flood Advisory	CHS	Beaufort	35 min
Jul 22, 2:38 PM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston	2 hr
Jul 22, 3:19 PM EDT	Severe Thunderstorm Warning	CHS	Jasper	41 min
Jul 22, 4:10 PM EDT	Special Weather Statement	CHS	Dorchester	35 min
Jul 22, 3:14 PM EDT	Severe Thunderstorm Warning	CHS	Bryan, Bulloch, Liberty	10 min
Jul 22, 7:20 PM EDT	Special Weather Statement	CHS	Jenkins	25 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.