Alert archive / North Carolina / Mesoscale Discussions in 2006

Mesoscale Discussion 874

May 14, 200621 counties in North Carolina; 6 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at May 14, 2006, 9:34 PM EDT for 21 counties in North Carolina; 6 counties in South Carolina. It was in force for 56 min.

The area

The outline as issued.

The facts

Issued: May 14, 2006, 9:34 PM EDT (01:34 UTC)
Expired: May 14, 2006, 10:30 PM EDT
In force: 56 min
Issued by: the Storm Prediction Center

All 27 counties

Beaufort County, NC, Bladen County, NC, Brunswick County, NC, Columbus County, NC, Craven County, NC, Duplin County, NC, Greene County, NC, Johnston County, NC, Jones County, NC, Lenoir County, NC, Martin County, NC, New Hanover County, NC, Onslow County, NC, Pamlico County, NC, Pender County, NC, Pitt County, NC, Sampson County, NC, Tyrrell County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC, Berkeley County, SC, Colleton County, SC, Dorchester County, SC, Georgetown County, SC, Horry County, SC, Williamsburg County, SC

The radar

The Wilmington radar (KLTX), 57 km from the middle of the area, began a volume at 01:36 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 00:00Z, 1.6 hours before the alert went out and 146 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: 113 J/kg
Mixed-layer CIN: -155 J/kg
Mixed-layer LCL: 1231 m above ground
0-6 km bulk shear: 57 kt
0-1 km storm-relative helicity: 255 m²/s²
0-3 km storm-relative helicity: 304 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 2.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 14, 8:07 PM EDT	Mesoscale Discussion	SPC	Bertie, Chatham, Edgecombe, Greene, Harnett, Johnston and 7 more	83 min
May 15, 1:44 PM EDT	Mesoscale Discussion	SPC	Beaufort, Bertie, Bladen, Brunswick, Camden, Carteret and 29 more	91 min
May 15, 2:36 PM EDT	Severe Thunderstorm Watch	SPC	Beaufort, Bertie, Bladen, Brunswick, Camden, Carteret and 25 more	6 hr
May 15, 7:18 PM EDT	Mesoscale Discussion	SPC	Beaufort, Bladen, Brunswick, Carteret, Columbus, Craven and 16 more	87 min

Nearby

Mesoscale Discussions in North Carolina, 2006 Mesoscale Discussions in South Carolina, 2006 Every mesoscale discussion in 2006

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.