Alert archive / South Carolina / Special Marine Warnings in 2021

Special Marine Warning 66, NWS Charleston, SC

July 19, 2021

NWS Charleston, SC issued this special marine warning at Jul 19, 2021, 7:24 PM EDT. It was in force for 66 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 19, 2021, 7:24 PM EDT (23:24 UTC)
Expired
Jul 19, 2021, 8:30 PM EDT
In force
66 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 19, 3:12 PM EDT, 4 hours 12 minutes earlier.

Area forecast discussion, Jul 19, 3:12 PM EDT, 4 hours 12 minutes before
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Hazardous weather outlook, Jul 19, 2:59 PM EDT, 4 hours 25 minutes before
Hazardous Weather Outlook
National Weather Service Charleston SC
259 PM EDT Mon Jul 19 2021

GAZ087-088-099>101-114>119-137>141-SCZ040-042>045-047>052-201900-
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 Colleton-Charleston-Coastal Jasper-
Tidal Berkeley-
259 PM EDT Mon Jul 19 2021

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

.DAY ONE...This afternoon and tonight.

Excessive Rainfall: Numerous to widespread thunderstorms will
develop across portions of the South Carolina Lowcountry and
Southeast Georgia through this evening. Minor flooding of low-lying
and poor drainage areas is possible.

.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.

AMZ330-350-352-354-374-201900-
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-
259 PM EDT Mon Jul 19 2021

This Hazardous Weather Outlook is for Atlantic coastal waters.

.DAY ONE...This afternoon and tonight.

Strong Thunderstorms: Clusters of thunderstorms are expected to push
across the nearshore and outer South Carolina and Georgia waters
late this afternoon and evening. These thunderstorms may produce
swaths of wind gusts of 35 knots or greater and excessive lightning.

.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

Special weather statement, Jul 19, 4:24 PM EDT, 3 hours before
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Local storm report, Jul 19, 6:48 PM EDT, 36 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Jul 19, 10:50 AM EDTSpecial Marine WarningCHS55 min
Jul 19, 4:24 PM EDTSpecial Weather StatementCHSBeaufort36 min
Jul 19, 6:17 PM EDTAreal Flood AdvisoryCHSBerkeley, Charleston, Colleton, Dorchester118 min

Nearby

Special Marine Warnings in South Carolina, 2021Every 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.