Alert archive / North Carolina / Wind Chill Advisories in 2014

Wind Chill Advisory 10, NWS Greenville-Spartanburg, SC

March 12, 20147 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this wind chill advisory at Mar 12, 2014, 2:37 PM EDT for 7 counties in North Carolina. It took effect at Mar 12, 2014, 6:00 PM EDT. It was in force for 15 hr.

The area

The counties it named.

The facts

Issued: Mar 12, 2014, 2:37 PM EDT (18:37 UTC)
In effect from: Mar 12, 2014, 6:00 PM EDT
Expired: Mar 13, 2014, 9:00 AM EDT
In force: 15 hr
Issued by: NWS Greenville-Spartanburg, SC

Counties Avery County, NC, Graham County, NC, Haywood County, NC, Madison County, NC, Mitchell County, NC, Swain County, NC, Yancey County, NC

The radar

The Knoxville radar (KMRX), 73 km from the middle of the area, began a volume at 18:37 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 12:00Z, 6.6 hours before the alert went out and 261 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: 1563 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 6 m²/s²
0-3 km storm-relative helicity: -85 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 Mar 12, 1:40 PM EDT, 57 minutes earlier.

Area forecast discussion, Mar 12, 1:40 PM EDT, 57 minutes before

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Hazardous weather outlook, Mar 12, 5:26 AM EDT, 9 hours 11 minutes before

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In the hours before

Special weather statement, Mar 12, 1:20 PM EDT, 1 hour 17 minutes before

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Special weather statement, Mar 12, 1:59 PM EDT, 38 minutes before

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Local storm report, Mar 12, 2:27 PM EDT, 10 minutes before

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Special weather statement, Mar 12, 2:27 PM 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
Mar 12, 4:40 AM EDT	High Wind Warning	GSP	Avery, Mitchell, Yancey	24 hr
Mar 12, 4:40 AM EDT	Wind Advisory	GSP	Alexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 22 more	31 hr
Mar 12, 4:58 AM EDT	Winter Weather Advisory	GSP	Avery, Graham, Haywood, Madison, Mitchell, Swain and 1 more	28 hr
Mar 12, 1:20 PM EDT	Special Weather Statement	GSP	Graham, Swain	40 min
Mar 12, 1:59 PM EDT	Special Weather Statement	GSP	Madison	46 min
Mar 12, 2:27 PM EDT	Special Weather Statement	GSP	Avery, Mitchell	48 min
Mar 12, 4:17 PM EDT	Special Weather Statement	GSP	Davie, Iredell	43 min
Mar 12, 4:31 PM EDT	Special Weather Statement	GSP	Davie, Iredell	29 min
Mar 12, 4:54 PM EDT	Special Weather Statement	GSP	Rowan	51 min
Mar 12, 5:08 PM EDT	Special Weather Statement	GSP	Cabarrus, Rowan	37 min
Mar 12, 5:45 PM EDT	Special Weather Statement	GSP	Cabarrus	45 min
Mar 12, 6:31 PM EDT	Special Weather Statement	GSP	Cabarrus	44 min

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.