Alert archive / North Carolina / Mesoscale Discussions in 2006

Mesoscale Discussion 477

April 8, 20064 counties in North Carolina

The Storm Prediction Center issued this mesoscale discussion at Apr 8, 2006, 5:34 PM EDT for 4 counties in North Carolina. It was in force for 86 min.

The area

The outline as issued.

The facts

Issued
Apr 8, 2006, 5:34 PM EDT (21:34 UTC)
Expired
Apr 8, 2006, 7:00 PM EDT
In force
86 min
Issued by
the Storm Prediction Center

Counties Carteret County, NC, Dare County, NC, Hyde County, NC, Pamlico County, NC

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 9.6 hours before the alert went out and 12 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 2006-04-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2006-04-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 square meters per square second.19395878Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1707 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
149 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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.

IssuedProductOfficeCountiesLasted
Apr 7, 9:20 PM EDTTornado WatchSPCAvery, Buncombe, Burke, Caldwell, Cherokee, Clay and 14 more10 hr
Apr 8, 8:30 AM EDTMesoscale DiscussionSPCBertie, Bladen, Chatham, Chowan, Cumberland, Duplin and 27 more2 hr
Apr 8, 1:38 PM EDTMesoscale DiscussionSPCBeaufort, Chowan, Columbus, Craven, Duplin, Hyde and 11 more2 hr
Apr 8, 2:54 PM EDTSevere Thunderstorm WatchSPCBeaufort, Bertie, Bladen, Brunswick, Camden, Carteret and 18 more4 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.