Alert archive / South Carolina / Flash Flood Warnings in 2015

Flash Flood Warning 27, NWS Greenville-Spartanburg, SC

October 1, 2015Spartanburg County, South Carolina

NWS Greenville-Spartanburg, SC issued this flash flood warning at Oct 1, 2015, 2:01 AM EDT for Spartanburg County, South 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: Oct 1, 2015, 2:01 AM EDT (06:01 UTC)
Expired: Oct 1, 2015, 5:00 AM EDT
In force: 3 hr
Issued by: NWS Greenville-Spartanburg, SC
Area: Storm-based polygon
Flood severity: None

County Spartanburg County, SC

The radar

The Greer radar (KGSP), 22 km from the middle of the area, began a volume at 06:01 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, 6.0 hours before the alert went out and 228 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: 95 J/kg
Mixed-layer CIN: -34 J/kg
Mixed-layer LCL: 1338 m above ground
0-6 km bulk shear: 42 kt
0-1 km storm-relative helicity: -26 m²/s²
0-3 km storm-relative helicity: 22 m²/s²
Significant tornado parameter: -0.0
Supercell composite: -0.2

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 Sep 30, 10:28 PM EDT, 3 hours 33 minutes earlier.

Area forecast discussion, Sep 30, 10:28 PM EDT, 3 hours 33 minutes before

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Hazardous weather outlook, Sep 30, 10:32 PM EDT, 3 hours 29 minutes before

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In the hours before

Special weather statement, Sep 30, 8:51 PM EDT, 5 hours 10 minutes before

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Special weather statement, Oct 1, 1:51 AM EDT, 10 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
Sep 30, 8:51 PM EDT	Special Weather Statement	GSP	Rowan	24 min
Sep 30, 9:54 PM EDT	Areal Flood Advisory	GSP	Alexander, Burke, Caldwell, Catawba	3 hr
Sep 30, 10:13 PM EDT	Areal Flood Advisory	GSP	Union	2 hr
Oct 1, 4:18 AM EDT	Flash Flood Watch	GSP	Alexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 22 more	4 days
Oct 1, 4:18 PM EDT	Areal Flood Advisory	GSP	Swain	117 min
Oct 1, 1:51 AM EDT	Special Weather Statement	GSP	Spartanburg	54 min
Oct 1, 4:59 AM EDT	Areal Flood Warning	GSP	Spartanburg	3 hr
Oct 1, 7:23 AM EDT	Special Weather Statement	GSP	Greenville	37 min
Oct 1, 7:55 AM EDT	Special Weather Statement	GSP	Greenville	35 min
Oct 1, 11:02 AM EDT	Special Weather Statement	GSP	Anderson	28 min
Oct 1, 6:08 PM EDT	Flash Flood Warning	GSP	Pickens	3 hr

Nearby

Flash Flood Warnings in South Carolina, 2015 Every flash flood warning in 2015

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.