Alert archive / Georgia / Flash Flood Watches in 2013

Flash Flood Watch 1, NWS Charleston, SC

June 5, 20135 counties in South Carolina; 8 counties in Georgia

NWS Charleston, SC issued this flash flood watch at Jun 5, 2013, 7:47 PM EDT for 5 counties in South Carolina; 8 counties in Georgia. It was in force for 40 hr.

The area

The counties it named.

The facts

Issued: Jun 5, 2013, 7:47 PM EDT (23:47 UTC)
Expired: Jun 7, 2013, 11:34 AM EDT
In force: 40 hr
Issued by: NWS Charleston, SC
Flood severity: None

Counties Bulloch County, GA, Candler County, GA, Effingham County, GA, Evans County, GA, Jenkins County, GA, Long County, GA, Screven County, GA, Tattnall County, GA, Allendale County, SC, Berkeley County, SC, Colleton County, SC, Dorchester County, SC, Hampton County, SC

The radar

The Charleston,SC radar (KCLX), 33 km from the middle of the area, began a volume at 23:50 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 nearest sounding before it

Jacksonville, FL (KJAX), launched 12:00Z, 11.8 hours before the alert went out and 233 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 656 J/kg
Mixed-layer CIN: -7 J/kg
Mixed-layer LCL: 547 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: -19 m²/s²
0-3 km storm-relative helicity: -2 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood watch 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 flash flood watch went out at Jun 5, 4:01 PM EDT, 3 hours 46 minutes earlier.

Area forecast discussion, Jun 5, 4:01 PM EDT, 3 hours 46 minutes before

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Hazardous weather outlook, Jun 5, 7:02 PM EDT, 45 minutes before

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In the hours before

Local storm report, Jun 5, 2:33 PM EDT, 5 hours 14 minutes before

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Local storm report, Jun 5, 3:04 PM EDT, 4 hours 43 minutes before

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Local storm report, Jun 5, 3:12 PM EDT, 4 hours 35 minutes before

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Local storm report, Jun 5, 5:52 PM EDT, 1 hour 55 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
Jun 5, 3:48 AM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston	117 min
Jun 5, 9:43 AM EDT	Areal Flood Advisory	CHS	Berkeley, Charleston	2 hr
Jun 5, 6:05 PM EDT	Tropical Storm Watch	CHS	Berkeley	12 hr
Jun 5, 11:59 AM EDT	Areal Flood Advisory	CHS	Bryan, Chatham, Effingham	3 hr
Jun 5, 12:42 PM EDT	Special Weather Statement	CHS	Chatham	63 min

Nearby

Flash Flood Watches in Georgia, 2013 Flash Flood Watches in South Carolina, 2013 Every flash flood watch in 2013

Sources

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