Alert archive / North Carolina / Flash Flood Warnings in 2010

Flash Flood Warning 48, NWS Greenville-Spartanburg, SC

August 19, 2010Cabarrus County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Aug 19, 2010, 9:05 PM EDT for Cabarrus County, North Carolina. It was in force for 3 hr. 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 19, 2010, 9:05 PM EDT (01:05 UTC)
Expired: Aug 20, 2010, 12:00 AM EDT
In force: 3 hr
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Flood severity: None

County Cabarrus County, NC

The radar

The Greer radar (KGSP), 162 km from the middle of the area, began a volume at 01:06 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 1.1 hours before the alert went out and 97 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: 1314 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 598 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 138 m²/s²
0-3 km storm-relative helicity: 195 m²/s²
Significant tornado parameter: 0.9
Supercell composite: 4.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this flash flood warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Greenville-Spartanburg, SC wrote its last area forecast discussion before this flash flood warning went out at Aug 19, 7:47 PM EDT, 1 hour 18 minutes earlier.

Area forecast discussion, Aug 19, 7:47 PM EDT, 1 hour 18 minutes before

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Hazardous weather outlook, Aug 19, 6:05 PM EDT, 3 hours before

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In the hours before

Special weather statement, Aug 19, 5:27 PM EDT, 3 hours 38 minutes before

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Special weather statement, Aug 19, 5:36 PM EDT, 3 hours 29 minutes before

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Special weather statement, Aug 19, 6:06 PM EDT, 2 hours 59 minutes before

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Special weather statement, Aug 19, 6:51 PM EDT, 2 hours 14 minutes before

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Special weather statement, Aug 19, 7:07 PM EDT, 1 hour 58 minutes before

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Local storm report, Aug 19, 8:29 PM EDT, 36 minutes before

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The office that day

Everything else NWS Greenville-Spartanburg, SC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 19, 8:17 PM EDT	Areal Flood Advisory	GSP	Cabarrus	3 hr
Aug 19, 9:57 PM EDT	Areal Flood Warning	GSP	Rowan	2 hr
Aug 19, 10:52 PM EDT	Areal Flood Advisory	GSP	Mecklenburg	113 min
Aug 19, 11:58 PM EDT	Areal Flood Warning	GSP	Cabarrus	4 hr
Aug 20, 7:48 PM EDT	Special Weather Statement	GSP	Greenwood	57 min

Nearby

Flash Flood Warnings in North Carolina, 2010 Every flash flood warning in 2010

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.