Alert archive / North Carolina / Wind Chill Advisories in 2014

Wind Chill Advisory 6, NWS Greenville-Spartanburg, SC

January 24, 201412 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this wind chill advisory at Jan 24, 2014, 9:43 PM EST for 12 counties in North Carolina. It took effect at Jan 24, 2014, 11:00 PM EST. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued: Jan 24, 2014, 9:43 PM EST (02:43 UTC)
In effect from: Jan 24, 2014, 11:00 PM EST
Expired: Jan 25, 2014, 6:47 AM EST
In force: 8 hr
Issued by: NWS Greenville-Spartanburg, SC

Counties Avery County, NC, Buncombe County, NC, Graham County, NC, Haywood County, NC, Henderson County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, Mitchell County, NC, Swain County, NC, Transylvania County, NC, Yancey County, NC

The radar

The Knoxville radar (KMRX), 85 km from the middle of the area, began a volume at 02:41 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, 2.7 hours before the alert went out and 269 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: 2413 m above ground
0-6 km bulk shear: 48 kt
0-1 km storm-relative helicity: 85 m²/s²
0-3 km storm-relative helicity: 96 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 wind chill advisory 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 wind chill advisory went out at Jan 24, 9:36 PM EST, 7 minutes earlier.

Area forecast discussion, Jan 24, 9:36 PM EST, 7 minutes before

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Hazardous weather outlook, Jan 24, 3:33 PM EST, 6 hours 10 minutes before

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In the hours before

Special weather statement, Jan 24, 6:23 PM EST, 3 hours 20 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 25, 4:05 AM EST	Red Flag Warning	GSP	Alexander, Cabarrus, Catawba, Cleveland, Davie, Gaston and 7 more	14 hr
Jan 25, 4:42 AM EST	Wind Advisory	GSP	Avery, Buncombe, Burke, Caldwell, Haywood, Henderson and 7 more	25 hr
Jan 25, 2:43 PM EST	Wind Chill Advisory	GSP	Avery, Mitchell, Yancey	13 hr

Nearby

Wind Chill Advisories in North Carolina, 2014 Every wind chill advisory in 2014

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.