Alert archive / South Carolina / Special Marine Warnings in 2021

Special Marine Warning 89, NWS Charleston, SC

August 17, 2021

NWS Charleston, SC issued this special marine warning at Aug 17, 2021, 5:34 AM EDT. It was in force for 86 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: Aug 17, 2021, 5:34 AM EDT (09:34 UTC)
Expired: Aug 17, 2021, 7:00 AM EDT
In force: 86 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 Aug 17, 3:55 AM EDT, 1 hour 39 minutes earlier.

Area forecast discussion, Aug 17, 3:55 AM EDT, 1 hour 39 minutes before

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Hazardous weather outlook, Aug 16, 3:45 PM EDT, 13 hours 49 minutes before

Hazardous Weather Outlook
National Weather Service Charleston SC
345 PM EDT Mon Aug 16 2021

GAZ087-088-099>101-114>116-118-137-138-140-SCZ040-042>045-047-052-
171945-
Jenkins-Screven-Candler-Bulloch-Effingham-Tattnall-Evans-
Inland Bryan-Inland Chatham-Long-Inland Liberty-Inland McIntosh-
Allendale-Hampton-Inland Colleton-Dorchester-Inland Berkeley-
Inland Jasper-Tidal Berkeley-
345 PM EDT Mon Aug 16 2021

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

.DAY ONE...This afternoon and tonight.

Heavy Rainfall: Scattered to numerous showers and thunderstorms will
produce locally heavy rainfall through tonight across southeast
Georgia and southeast South Carolina. Localized flooding is possible.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Heavy Rainfall: A few more rounds of heavy rainfall will impact
southeast South Carolina and southeast Georgia Tuesday into Tuesday
night. Overall rainfall totals of 1 to 3 inches are expected through
Tuesday night, with locally higher amounts likely. Heavy rainfall
persisting over the same areas for extended periods may lead to
minor flooding, especially in low-lying and poor drainage areas.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

GAZ117-119-139-141-SCZ048>051-171945-
Coastal Bryan-Coastal Chatham-Coastal Liberty-Coastal McIntosh-
Beaufort-Coastal Colleton-Charleston-Coastal Jasper-
345 PM EDT Mon Aug 16 2021

...MODERATE RISK FOR RIP CURRENTS IN EFFECT THROUGH TUESDAY
EVENING...

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

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Moderate Risk for Rip Currents.

Heavy Rainfall: Scattered to numerous showers and thunderstorms will
produce locally heavy rainfall through tonight across southeast
Georgia and southeast South Carolina. Localized flooding is possible.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Moderate Risk for Rip Currents.

Heavy Rainfall: A few more rounds of heavy rainfall will impact
southeast South Carolina and southeast Georgia Tuesday into Tuesday
night. Overall rainfall totals of 1 to 3 inches are expected through
Tuesday night, with locally higher amounts likely. Heavy rainfall
persisting over the same areas for extended periods may lead to
minor flooding, especially in low-lying and poor drainage areas. A
risk of flash flooding may develop in urban coastal areas such as
Downtown Charleston if heavy rain falls around the times of high
tide.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

AMZ330-350-352-354-374-171945-
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-
345 PM EDT Mon Aug 16 2021

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...This afternoon and tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter assistance is not anticipated at this time.

In the hours before

Local storm report, Aug 17, 2:59 AM EDT, 2 hours 35 minutes before

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Local storm report, Aug 17, 3:15 AM EDT, 2 hours 19 minutes before

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Local storm report, Aug 17, 3:30 AM EDT, 2 hours 4 minutes before

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Local storm report, Aug 17, 3:38 AM EDT, 1 hour 56 minutes before

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Local storm report, Aug 17, 4:04 AM EDT, 1 hour 30 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
Aug 17, 2:41 AM EDT	Special Marine Warning	CHS		36 min
Aug 17, 3:19 AM EDT	Special Marine Warning	CHS		116 min
Aug 17, 3:32 AM EDT	Special Marine Warning	CHS		118 min
Aug 17, 6:38 AM EDT	Special Marine Warning	CHS		52 min
Aug 17, 7:30 AM EDT	Special Marine Warning	CHS		2 hr
Aug 17, 12:58 PM EDT	Special Weather Statement	CHS	Charleston	32 min
Aug 17, 2:42 PM EDT	Areal Flood Advisory	CHS	Charleston	63 min
Aug 17, 2:58 PM EDT	Special Weather Statement	CHS	Jasper	32 min
Aug 17, 2:30 PM EDT	Special Weather Statement	CHS	Chatham	30 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.