Alert archive / North Carolina / Mesoscale Discussions in 2016

Mesoscale Discussion 1176

July 6, 20165 states

The Storm Prediction Center issued this mesoscale discussion at Jul 6, 2016, 7:51 PM EDT for 5 states. It was in force for 54 min.

The area

The outline as issued.

The facts

Issued: Jul 6, 2016, 7:51 PM EDT (23:51 UTC)
Expired: Jul 6, 2016, 8:45 PM EDT
In force: 54 min
Issued by: the Storm Prediction Center
Chance of a watch: 20%

All 42 counties

Fannin County, GA, Rabun County, GA, Towns County, GA, Union County, GA, White County, GA, Alexander County, NC, Alleghany County, NC, Ashe County, NC, Avery County, NC, Buncombe County, NC, Burke County, NC, Caldwell County, NC, Clay County, NC, Haywood County, NC, Henderson County, NC, Jackson County, NC, Macon County, NC, Madison County, NC, McDowell County, NC, Mitchell County, NC, Polk County, NC, Rutherford County, NC, Transylvania County, NC, Watauga County, NC, Wilkes County, NC, Yancey County, NC, Greenville County, SC, Oconee County, SC, Pickens County, SC, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, Sullivan County, TN, Unicoi County, TN, Washington County, TN, City of Bristol, VA, City of Galax, VA, Grayson County, VA, Smyth County, VA, Washington County, VA, Wythe County, VA

The radar

The Knoxville radar (KMRX), 86 km from the middle of the area, began a volume at 23:54 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, 11.9 hours before the alert went out and 251 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: 4 J/kg
Mixed-layer CIN: -168 J/kg
Mixed-layer LCL: 1250 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 2 m²/s²
0-3 km storm-relative helicity: 35 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 6, 1:14 PM EDT	Mesoscale Discussion	SPC	Baldwin, Bibb, Bleckley, Burke, Butts, Chattahoochee and 49 more	61 min
Jul 6, 1:53 PM EDT	Severe Thunderstorm Watch	SPC	Baldwin, Banks, Bibb, Bleckley, Burke, Butts and 61 more	4 hr
Jul 6, 3:01 PM EDT	Mesoscale Discussion	SPC	Baldwin, Bibb, Bleckley, Burke, Butts, Candler and 45 more	59 min
Jul 6, 3:44 PM EDT	Mesoscale Discussion	SPC	Brantley, Bryan, Chatham, Effingham, Evans, Liberty and 4 more	61 min
Jul 6, 4:03 PM EDT	Severe Thunderstorm Watch	SPC	Bryan, Bulloch, Candler, Chatham, Effingham, Evans and 6 more	4 hr
Jul 5, 8:45 PM EDT	Mesoscale Discussion	SPC	Beaufort, Bertie, Carteret, Craven, Duplin, Edgecombe and 11 more	2 hr
Jul 6, 5:48 PM EDT	Mesoscale Discussion	SPC	Cherokee, Graham, Swain	57 min
Jul 6, 11:32 AM EDT	Mesoscale Discussion	SPC	Dyer, Lake, Obion, Weakley	58 min
Jul 6, 11:48 AM EDT	Severe Thunderstorm Watch	SPC	Benton, Carroll, Chester, Crockett, Decatur, Dyer and 10 more	5 hr
Jul 6, 1:53 PM EDT	Mesoscale Discussion	SPC	Carroll, Crockett, Dyer, Gibson, Haywood, Henderson and 6 more	67 min
Jul 6, 2:24 PM EDT	Severe Thunderstorm Watch	SPC	Bedford, Cannon, Cheatham, Clay, Coffee, Cumberland and 29 more	6 hr

Nearby

Mesoscale Discussions in North Carolina, 2016 Mesoscale Discussions in Tennessee, 2016 Mesoscale Discussions in Virginia, 2016 Every mesoscale discussion in 2016

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.