Alert archive / North Carolina / Snow Advisories in 2007

Snow Advisory 6, NWS Greenville-Spartanburg, SC

April 6, 20077 counties in North Carolina

NWS Greenville-Spartanburg, SC issued this snow advisory at Apr 6, 2007, 10:51 PM EDT for 7 counties in North Carolina. It was in force for 16 hr.

The area

The counties it named.

The facts

Issued: Apr 6, 2007, 10:51 PM EDT (02:51 UTC)
Expired: Apr 7, 2007, 3:00 PM EDT
In force: 16 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 02:53 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, 2.9 hours before the alert went out and 334 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: 1153 m above ground
0-6 km bulk shear: 101 kt
0-1 km storm-relative helicity: 15 m²/s²
0-3 km storm-relative helicity: 217 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 snow 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 snow advisory went out at Apr 6, 9:02 PM EDT, 1 hour 49 minutes earlier.

Area forecast discussion, Apr 6, 9:02 PM EDT, 1 hour 49 minutes before

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Hazardous weather outlook, Apr 6, 8:48 PM EDT, 2 hours 3 minutes before

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In the hours before

Special weather statement, Apr 6, 9:04 PM EDT, 1 hour 47 minutes before

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      <div class="status" id="status">Temporary Notice</div>
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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
Apr 7, 4:37 AM EDT	Freeze Warning	GSP	Alexander, Burke, Cabarrus, Caldwell, Catawba, Cleveland and 10 more	29 hr
Apr 7, 4:37 AM EDT	Lake Wind Advisory	GSP	Alexander, Avery, Buncombe, Burke, Cabarrus, Caldwell and 22 more	18 hr
Apr 7, 3:29 PM EDT	Freeze Watch	GSP	Alexander, Burke, Cabarrus, Caldwell, Catawba, Cleveland and 10 more	12 hr

Nearby

Snow Advisories in North Carolina, 2007 Every snow advisory in 2007

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.