Alert archive / North Carolina / Flood Watches in 2013

Flood Watch 2, NWS Greenville-Spartanburg, SC

January 29, 20134 counties in North Carolina; Rabun County, Georgia

NWS Greenville-Spartanburg, SC issued this flood watch at Jan 29, 2013, 3:36 AM EST for 4 counties in North Carolina; Rabun County, Georgia. It took effect at Jan 30, 2013, 6:00 AM EST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Jan 29, 2013, 3:36 AM EST (08:36 UTC)
In effect from: Jan 30, 2013, 6:00 AM EST
Expired: Jan 31, 2013, 12:00 AM EST
In force: 18 hr
Issued by: NWS Greenville-Spartanburg, SC
Flood severity: None

Counties Rabun County, GA, Henderson County, NC, Jackson County, NC, Macon County, NC, Transylvania County, NC

The radar

The Greer radar (KGSP), 82 km from the middle of the area, began a volume at 08:40 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

Peachtre/Fal Fld, GA (KFFC), launched 00:00Z, 8.6 hours before the alert went out and 241 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 900 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 120 m²/s²
0-3 km storm-relative helicity: 136 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 flood watch 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 flood watch went out at Jan 29, 3:07 AM EST, 29 minutes earlier.

Area forecast discussion, Jan 29, 3:07 AM EST, 29 minutes before

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Hazardous weather outlook, Jan 28, 4:06 PM EST, 11 hours 30 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
Jan 29, 3:20 AM EST	High Wind Watch	GSP	Avery, Buncombe, Burke, Caldwell, Graham, Haywood and 9 more	12 hr
Jan 29, 3:40 PM EST	High Wind Warning	GSP	Avery, Buncombe, Burke, Caldwell, Graham, Haywood and 9 more	30 hr
Jan 29, 3:40 PM EST	Wind Advisory	GSP	Alexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 22 more	69 hr

Nearby

Flood Watches in North Carolina, 2013 Flood Watches in Georgia, 2013 Every 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.