Alert archive / North Carolina / Wind Chill Advisories in 2014

Wind Chill Advisory 8, NWS Greenville-Spartanburg, SC

January 27, 2014Avery County, Mitchell County, Yancey County, North Carolina

NWS Greenville-Spartanburg, SC issued this wind chill advisory at Jan 27, 2014, 3:51 AM EST for Avery County, Mitchell County, Yancey County, North Carolina. It took effect at Jan 27, 2014, 6:00 PM EST. It was in force for 18 hr.

The area

The counties it named.

The facts

Issued: Jan 27, 2014, 3:51 AM EST (08:51 UTC)
In effect from: Jan 27, 2014, 6:00 PM EST
Expired: Jan 28, 2014, 12:00 PM EST
In force: 18 hr
Issued by: NWS Greenville-Spartanburg, SC

Counties Avery County, NC, Mitchell County, NC, Yancey County, NC

The radar

The Knoxville radar (KMRX), 116 km from the middle of the area, began a volume at 08:55 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

Roanoke, VA (KRNK), launched 00:00Z, 8.9 hours before the alert went out and 270 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: 1623 m above ground
0-6 km bulk shear: 62 kt
0-1 km storm-relative helicity: 279 m²/s²
0-3 km storm-relative helicity: 268 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 27, 3:35 AM EST, 16 minutes earlier.

Area forecast discussion, Jan 27, 3:35 AM EST, 16 minutes before

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Hazardous weather outlook, Jan 26, 7:20 PM EST, 8 hours 31 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 27, 4:25 AM EST	Freezing Rain Advisory	GSP	Avery, Graham, Haywood, Jackson, Macon, Madison and 4 more	8 hr
Jan 27, 3:15 PM EST	Winter Storm Warning	GSP	Union	37 hr
Jan 27, 3:15 PM EST	Winter Weather Advisory	GSP	Alexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 22 more	45 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.