Alert archive / North Carolina / Flash Flood Warnings in 2009

Flash Flood Warning 35, NWS Greenville-Spartanburg, SC

July 27, 2009Cabarrus County, North Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Jul 27, 2009, 10:09 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: Jul 27, 2009, 10:09 PM EDT (02:09 UTC)
Expired: Jul 28, 2009, 1:00 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 02:11 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, 2.2 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: 990 J/kg
Mixed-layer CIN: -64 J/kg
Mixed-layer LCL: 1162 m above ground
0-6 km bulk shear: 18 kt
0-1 km storm-relative helicity: 9 m²/s²
0-3 km storm-relative helicity: 41 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 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 Jul 27, 9:52 PM EDT, 17 minutes earlier.

Area forecast discussion, Jul 27, 9:52 PM EDT, 17 minutes before

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Hazardous weather outlook, Jul 27, 10:09 PM EDT, 0 minutes before

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In the hours before

Special weather statement, Jul 27, 5:42 PM EDT, 4 hours 27 minutes before

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Special weather statement, Jul 27, 5:50 PM EDT, 4 hours 19 minutes before

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Special weather statement, Jul 27, 6:14 PM EDT, 3 hours 55 minutes before

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Special weather statement, Jul 27, 6:33 PM EDT, 3 hours 36 minutes before

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Special weather statement, Jul 27, 6:45 PM EDT, 3 hours 24 minutes before

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Local storm report, Jul 27, 8:13 PM EDT, 1 hour 56 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
Jul 27, 9:57 PM EDT	Areal Flood Advisory	GSP	Cabarrus	2 hr
Jul 27, 11:09 PM EDT	Areal Flood Advisory	GSP	Mecklenburg	111 min
Jul 27, 11:34 PM EDT	Areal Flood Advisory	GSP	Union	116 min
Jul 28, 4:39 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe	47 min
Jul 28, 5:30 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Polk, Rutherford	60 min
Jul 28, 6:38 PM EDT	Severe Thunderstorm Warning	GSP	Gaston, Mecklenburg	82 min
Jul 28, 7:37 PM EDT	Flash Flood Warning	GSP	Mecklenburg	3 hr
Jul 28, 7:57 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg	49 min
Jul 28, 1:52 AM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	53 min
Jul 28, 5:45 PM EDT	Severe Thunderstorm Warning	GSP	Chester, Union, York	60 min
Jul 28, 7:27 PM EDT	Severe Thunderstorm Warning	GSP	Cherokee, Greenville, Laurens, Spartanburg	63 min

Nearby

Flash Flood Warnings in North Carolina, 2009 Every flash flood warning in 2009

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.