Alert archive / North Carolina / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 363

July 8, 201674 counties in North Carolina; 12 counties in South Carolina

The Storm Prediction Center issued this severe thunderstorm watch at Jul 8, 2016, 6:15 PM EDT for 74 counties in North Carolina; 12 counties in South Carolina. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Jul 8, 2016, 6:15 PM EDT (22:15 UTC)
Expired: Jul 9, 2016, 12:00 AM EDT
In force: 6 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1.5 in
Strongest gust expected: 60 kt

All 86 counties

Alamance County, NC, Alexander County, NC, Anson County, NC, Avery County, NC, Beaufort County, NC, Bertie County, NC, Buncombe County, NC, Burke County, NC, Cabarrus County, NC, Caldwell County, NC, Carteret County, NC, Catawba County, NC, Chatham County, NC, Cleveland County, NC, Craven County, NC, Cumberland County, NC, Davidson County, NC, Davie County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Forsyth County, NC, Franklin County, NC, Gaston County, NC, Graham County, NC, Granville County, NC, Greene County, NC, Guilford County, NC, Halifax County, NC, Harnett County, NC, Haywood County, NC, Henderson County, NC, Hertford County, NC, Hoke County, NC, Hyde County, NC, Iredell County, NC, Jackson County, NC, Johnston County, NC, Jones County, NC, Lee County, NC, Lenoir County, NC, Lincoln County, NC, Macon County, NC, Madison County, NC, Martin County, NC, McDowell County, NC, Mecklenburg County, NC, Mitchell County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Northampton County, NC, Onslow County, NC, Orange County, NC, Pamlico County, NC, Person County, NC, Pitt County, NC, Polk County, NC, Randolph County, NC, Richmond County, NC, Rowan County, NC, Rutherford County, NC, Sampson County, NC, Scotland County, NC, Stanly County, NC, Swain County, NC, Transylvania County, NC, Union County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Wayne County, NC, Wilson County, NC, Yancey County, NC, Abbeville County, SC, Anderson County, SC, Cherokee County, SC, Chester County, SC, Greenville County, SC, Greenwood County, SC, Laurens County, SC, Oconee County, SC, Pickens County, SC, Spartanburg County, SC, Union County, SC, York County, SC

The radar

The Roanoke radar (KFCX), 147 km from the middle of the area, began a volume at 22:19 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 10%
One or more EF2 to EF5 tornadoes: 2%
Ten or more severe wind reports: 60%
One or more gusts of 65 knots or more: 10%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 10%
Six or more combined severe hail and wind reports: 80%

Warnings issued inside it

38 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
Jul 8, 6:30 PM EDT	Severe Thunderstorm Warning	GSP	Avery, Burke, Caldwell, McDowell, Mitchell, Yancey	45 min
Jul 8, 6:30 PM EDT	Severe Thunderstorm Warning	RAH	Granville, Person, Vance	75 min
Jul 8, 6:44 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Halifax, Nash	46 min
Jul 8, 6:47 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Guilford, Orange	58 min
Jul 8, 6:53 PM EDT	Severe Thunderstorm Warning	GSP	Buncombe, Madison, Yancey	52 min
Jul 8, 6:58 PM EDT	Severe Thunderstorm Warning	GSP	Graham, Swain	62 min
Jul 8, 7:05 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Franklin, Granville, Halifax, Nash, Vance and 2 more	70 min
Jul 8, 7:06 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston, Lincoln, Rutherford	39 min
Jul 8, 7:13 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Sampson	47 min
Jul 8, 7:14 PM EDT	Severe Thunderstorm Warning	GSP	Davie, Iredell	46 min
Jul 8, 7:16 PM EDT	Severe Thunderstorm Warning	RAH	Forsyth	59 min
Jul 8, 7:18 PM EDT	Severe Thunderstorm Warning	GSP	Alexander, Avery, Burke, Caldwell, Catawba, McDowell and 2 more	42 min
Jul 8, 7:24 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe	66 min
Jul 8, 7:39 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston, Lincoln	51 min
Jul 8, 7:42 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Chatham, Orange	78 min
Jul 8, 7:43 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Guilford, Randolph	77 min
Jul 8, 7:47 PM EDT	Severe Thunderstorm Warning	GSP	Haywood, Jackson, Macon, Swain, Transylvania	58 min
Jul 8, 8:03 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Durham, Edgecombe, Franklin, Halifax, Johnston and 4 more	72 min
Jul 8, 8:08 PM EDT	Severe Thunderstorm Warning	GSP	Gaston, Lincoln, Mecklenburg	37 min
Jul 8, 8:08 PM EDT	Severe Thunderstorm Warning	RAH	Forsyth	36 min
Jul 8, 8:19 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Jackson, Transylvania	56 min
Jul 8, 8:30 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Gaston, Iredell, Mecklenburg, Rowan, Union	45 min
Jul 8, 8:31 PM EDT	Severe Thunderstorm Warning	GSP	Greenville, Spartanburg	29 min
Jul 8, 8:39 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Davidson, Montgomery, Moore, Randolph, Stanly	81 min
Jul 8, 8:50 PM EDT	Severe Thunderstorm Warning	MHX	Beaufort, Craven, Greene, Jones, Lenoir, Martin and 3 more	55 min
Jul 8, 8:55 PM EDT	Severe Thunderstorm Warning	GSP	York	35 min
Jul 8, 8:56 PM EDT	Severe Thunderstorm Warning	GSP	Henderson, Polk, Transylvania	38 min
Jul 8, 8:59 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Chatham, Guilford, Orange	39 min
Jul 8, 9:05 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Richmond	55 min
Jul 8, 9:06 PM EDT	Severe Thunderstorm Warning	GSP	Cabarrus, Mecklenburg, Union	39 min
Jul 8, 9:11 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Wayne	49 min
Jul 8, 9:26 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett, Hoke, Lee, Moore, Scotland	79 min
Jul 8, 9:27 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Durham, Johnston, Wake	63 min
Jul 8, 9:40 PM EDT	Severe Thunderstorm Warning	GSP	Cleveland, Gaston, Rutherford	26 min
Jul 8, 9:41 PM EDT	Severe Thunderstorm Warning	MHX	Beaufort, Carteret, Craven, Duplin, Hyde, Jones and 3 more	64 min
Jul 8, 9:52 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Richmond	53 min
Jul 8, 10:05 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Harnett, Johnston, Sampson, Wayne	70 min
Jul 8, 11:08 PM EDT	Severe Thunderstorm Warning	RAH	Sampson	37 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 10.3 hours before the alert went out and 103 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: 178 J/kg
Mixed-layer CIN: -224 J/kg
Mixed-layer LCL: 1340 m above ground
0-6 km bulk shear: 24 kt
0-1 km storm-relative helicity: 142 m²/s²
0-3 km storm-relative helicity: 113 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 8, 3:32 PM EDT	Mesoscale Discussion	SPC	Alexander, Alleghany, Ashe, Avery, Burke, Caldwell and 12 more	88 min
Jul 8, 3:53 PM EDT	Severe Thunderstorm Watch	SPC	Alleghany, Ashe, Caswell, Rockingham, Stokes, Surry and 3 more	5 hr
Jul 8, 5:48 PM EDT	Mesoscale Discussion	SPC	Alamance, Alexander, Buncombe, Burke, Cabarrus, Caldwell and 49 more	57 min
Jul 8, 6:48 PM EDT	Mesoscale Discussion	SPC	Alexander, Avery, Caldwell, Davie, Iredell, Watauga and 2 more	57 min
Jul 8, 7:36 PM EDT	Mesoscale Discussion	SPC	Clay	24 min
Jul 8, 1:01 PM EDT	Mesoscale Discussion	SPC	Anderson, Bledsoe, Blount, Campbell, Claiborne, Cocke and 31 more	59 min
Jul 8, 1:34 PM EDT	Severe Thunderstorm Watch	SPC	Anderson, Bedford, Bledsoe, Blount, Campbell, Cannon and 50 more	7 hr
Jul 8, 2:59 PM EDT	Mesoscale Discussion	SPC	Benton, Carroll, Chester, Crockett, Dyer, Gibson and 10 more	2 hr
Jul 8, 3:26 PM EDT	Severe Thunderstorm Watch	SPC	Chester, Crockett, Dyer, Fayette, Gibson, Hardeman and 9 more	5 hr
Jul 8, 3:49 PM EDT	Mesoscale Discussion	SPC	Anderson, Bedford, Bledsoe, Blount, Campbell, Cannon and 41 more	56 min
Jul 8, 5:42 PM EDT	Mesoscale Discussion	SPC	Carroll, Chester, Crockett, Dyer, Gibson, Haywood and 6 more	63 min

Nearby

Severe Thunderstorm Watches in North Carolina, 2016 Severe Thunderstorm Watches in South Carolina, 2016 Every severe thunderstorm watch 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.