Alert archive / South Carolina / River Flood Warnings in 2020

River Flood Warning 23, NWS Charleston, SC

April 21, 2020Berkeley County, Georgetown County, Williamsburg County, South Carolina

NWS Charleston, SC issued this river flood warning at Apr 21, 2020, 10:14 AM EDT for Berkeley County, Georgetown County, Williamsburg County, South Carolina. It took effect at Apr 21, 2020, 2:00 PM EDT. It was in force for 6 days.

The area

The counties it named.

The facts

Issued: Apr 21, 2020, 10:14 AM EDT (14:14 UTC)
In effect from: Apr 21, 2020, 2:00 PM EDT
Expired: Apr 27, 2020, 4:02 PM EDT
In force: 6 days
Issued by: NWS Charleston, SC
Area: Storm-based polygon
Flood severity: Minor

Counties Berkeley County, SC, Georgetown County, SC, Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 131 km from the middle of the area, began a volume at 14:13 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The river

Written for the forecast point Santee River near Jamestown (JAMS1). The gauge peaked at 11.42 ft at Apr 25, 2020, 5:00 AM EDT.

Action stage: 9 ft
Minor stage: 10 ft
Moderate stage: 17 ft
Major stage: 22 ft

This gauge today: stage, forecast and historic crests

Stage from the USGS instantaneous record for site 02171700, one reading an hour, from a day before the product to a day after it ended. Flood stages are today's.

What forecasters said that day

The local office's own words before this river flood 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 river flood warning went out at Apr 21, 10:10 AM EDT, 4 minutes earlier.

Area forecast discussion, Apr 21, 10:10 AM EDT, 4 minutes before

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Hazardous weather outlook, Apr 21, 4:08 AM EDT, 6 hours 6 minutes before

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        Please try again in a few minutes.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Apr 21, 3:56 AM EDT	Small Craft Advisory	CHS		16 hr
Apr 20, 8:51 PM EDT	River Flood Warning	CHS	Burke, Emanuel, Jenkins	8 days

Nearby

River Flood Warnings in South Carolina, 2020 Every river flood warning in 2020

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; radar from the NEXRAD Level II archive; the gauge from the NWS water service and the USGS.