Alert archive / North Carolina / Mesoscale Discussions in 2006

Mesoscale Discussion 869

May 14, 200648 counties in North Carolina

The Storm Prediction Center issued this mesoscale discussion at May 14, 2006, 4:35 PM EDT for 48 counties in North Carolina. It was in force for 55 min.

The area

The outline as issued.

The facts

Issued
May 14, 2006, 4:35 PM EDT (20:35 UTC)
Expired
May 14, 2006, 5:30 PM EDT
In force
55 min
Issued by
the Storm Prediction Center
All 48 counties

Beaufort County, NC, Bertie County, NC, Camden County, NC, Carteret County, NC, Chatham County, NC, Chowan County, NC, Craven County, NC, Cumberland County, NC, Currituck County, NC, Dare County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Gates County, NC, Granville County, NC, Greene County, NC, Halifax County, NC, Harnett County, NC, Hertford County, NC, Hoke County, NC, Hyde County, NC, Johnston County, NC, Jones County, NC, Lee County, NC, Lenoir County, NC, Martin County, NC, Montgomery County, NC, Moore County, NC, Nash County, NC, Northampton County, NC, Onslow County, NC, Orange County, NC, Pamlico County, NC, Pasquotank County, NC, Perquimans County, NC, Pitt County, NC, Randolph County, NC, Richmond County, NC, Sampson County, NC, Scotland County, NC, Tyrrell County, NC, Vance County, NC, Wake County, NC, Warren County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC

The radar

The Raleigh/Durham radar (KRAX), 68 km from the middle of the area, began a volume at 20:36 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 watches that followed

Watches SPC issued over any of the same counties within four hours of this discussion.

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 8.6 hours before the alert went out and 109 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-pSkew-T log-p diagram, Newport, NC at 12:00Z on 2006-05-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 324 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 12:00Z on 2006-05-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
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
324 J/kg
Mixed-layer CIN
-36 J/kg
Mixed-layer LCL
1188 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
131 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.5

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.

IssuedProductOfficeCountiesLasted
May 13, 8:11 PM EDTSevere Thunderstorm WatchSPCCherokee, Clay, Graham, Jackson, Macon, Swain5 hr
May 14, 12:21 AM EDTMesoscale DiscussionSPCCherokee, Clay, Graham, Jackson, Macon, Swain54 min
May 14, 12:20 PM EDTMesoscale DiscussionSPCAlamance, Alexander, Alleghany, Anson, Ashe, Beaufort and 68 more115 min
May 14, 12:37 PM EDTSevere Thunderstorm WatchSPCAlamance, Alexander, Anson, Bladen, Cabarrus, Caswell and 45 more7 hr
May 14, 2:42 PM EDTMesoscale DiscussionSPCAlamance, Anson, Beaufort, Bertie, Cabarrus, Camden and 55 more63 min
May 14, 2:47 PM EDTTornado WatchSPCAlamance, Anson, Beaufort, Bertie, Camden, Carteret and 47 more7 hr
May 14, 3:32 PM EDTSevere Thunderstorm WatchSPCBrunswick, Columbus, New Hanover, Pender6 hr
May 14, 4:58 PM EDTMesoscale DiscussionSPCAlexander, Bladen, Brunswick, Cabarrus, Caswell, Catawba and 18 more92 min
May 14, 6:52 PM EDTTornado WatchSPCBrunswick, Columbus, New Hanover, Pender5 hr

Nearby

Mesoscale Discussions in North Carolina, 2006Every 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.