Alert archive / North Carolina / Mesoscale Discussions in 2016

Mesoscale Discussion 825

June 5, 201626 counties in North Carolina; 21 counties in Virginia

The Storm Prediction Center issued this mesoscale discussion at Jun 5, 2016, 7:23 PM EDT for 26 counties in North Carolina; 21 counties in Virginia. It was in force for 97 min.

The area

The outline as issued.

The facts

Issued: Jun 5, 2016, 7:23 PM EDT (23:23 UTC)
Expired: Jun 5, 2016, 9:00 PM EDT
In force: 97 min
Issued by: the Storm Prediction Center

All 47 counties

Beaufort County, NC, Bertie County, NC, Camden County, NC, Chowan County, NC, Currituck County, NC, Edgecombe County, NC, Franklin County, NC, Gates County, NC, Greene County, NC, Halifax County, NC, Hertford County, NC, Johnston County, NC, Lenoir County, NC, Martin County, NC, Nash County, NC, Northampton County, NC, Pasquotank County, NC, Perquimans County, NC, Pitt County, NC, Sampson County, NC, Tyrrell County, NC, Wake County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, City of Chesapeake, VA, City of Emporia, VA, City of Franklin, VA, City of Hampton, VA, City of Newport News, VA, City of Norfolk, VA, City of Poquoson, VA, City of Portsmouth, VA, City of Suffolk, VA, City of Virginia Beach, VA, City of Williamsburg, VA, Gloucester County, VA, Greensville County, VA, Isle of Wight County, VA, James City County, VA, Mathews County, VA, Northampton County, VA, Southampton County, VA, Surry County, VA, Sussex County, VA, York County, VA

The radar

The Norfolk radar (KAKQ), 71 km from the middle of the area, began a volume at 23:23 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

Newport, NC (KMHX), launched 12:00Z, 11.4 hours before the alert went out and 178 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: 1329 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 579 m above ground
0-6 km bulk shear: 23 kt
0-1 km storm-relative helicity: 112 m²/s²
0-3 km storm-relative helicity: 95 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.3

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
Jun 5, 1:47 PM EDT	Mesoscale Discussion	SPC	Alamance, Alexander, Anson, Cabarrus, Catawba, Chatham and 29 more	118 min
Jun 5, 3:48 PM EDT	Severe Thunderstorm Watch	SPC	Alamance, Anson, Beaufort, Bertie, Bladen, Cabarrus and 64 more	7 hr
Jun 5, 1:14 PM EDT	Mesoscale Discussion	SPC	Albemarle, Amelia, Amherst, Appomattox, Arlington, Augusta and 73 more	91 min
Jun 5, 3:12 PM EDT	Severe Thunderstorm Watch	SPC	Albemarle, Arlington, Augusta, Clarke, Culpeper, Fairfax and 27 more	6 hr
Jun 5, 4:57 PM EDT	Mesoscale Discussion	SPC	Stafford	93 min

Nearby

Mesoscale Discussions in North Carolina, 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.