Alert archive / North Carolina / Mesoscale Discussions in 2005

Mesoscale Discussion 91

January 13, 200533 counties in North Carolina; 26 counties in South Carolina

The Storm Prediction Center issued this mesoscale discussion at Jan 13, 2005, 10:58 PM EST for 33 counties in North Carolina; 26 counties in South Carolina. It was in force for 62 min.

The area

The outline as issued.

The facts

Issued
Jan 13, 2005, 10:58 PM EST (03:58 UTC)
Expired
Jan 14, 2005, 12:00 AM EST
In force
62 min
Issued by
the Storm Prediction Center
All 59 counties

Alamance County, NC, Alexander County, NC, Anson County, NC, Cabarrus County, NC, Caldwell County, NC, Caswell County, NC, Catawba County, NC, Chatham County, NC, Cleveland County, NC, Davidson County, NC, Davie County, NC, Forsyth County, NC, Gaston County, NC, Guilford County, NC, Hoke County, NC, Iredell County, NC, Lee County, NC, Lincoln County, NC, Mecklenburg County, NC, Montgomery County, NC, Moore County, NC, Orange County, NC, Randolph County, NC, Richmond County, NC, Rockingham County, NC, Rowan County, NC, Scotland County, NC, Stanly County, NC, Stokes County, NC, Surry County, NC, Union County, NC, Wilkes County, NC, Yadkin County, NC, Aiken County, SC, Allendale County, SC, Bamberg County, SC, Barnwell County, SC, Calhoun County, SC, Cherokee County, SC, Chester County, SC, Chesterfield County, SC, Clarendon County, SC, Colleton County, SC, Darlington County, SC, Dorchester County, SC, Fairfield County, SC, Florence County, SC, Kershaw County, SC, Lancaster County, SC, Lee County, SC, Lexington County, SC, Marlboro County, SC, Newberry County, SC, Orangeburg County, SC, Richland County, SC, Saluda County, SC, Sumter County, SC, Union County, SC, York County, SC

The radar

The Columbia radar (KCAE), 131 km from the middle of the area, began a volume at 04:01 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 4.0 hours before the alert went out and 134 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, Greensboro/Hi Pt, NC at 00:00Z on 2005-01-14Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 196 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, Greensboro/Hi Pt, NC at 00:00Z on 2005-01-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 165 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
196 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
495 m above ground
0-6 km bulk shear
50 kt
0-1 km storm-relative helicity
165 m²/s²
0-3 km storm-relative helicity
164 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0

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
Jan 13, 7:48 PM ESTMesoscale DiscussionSPCAlexander, Burke, Cabarrus, Catawba, Cleveland, Davie and 9 more87 min
Jan 13, 9:41 PM ESTMesoscale DiscussionSPCAlexander, Burke, Cabarrus, Catawba, Cleveland, Davie and 8 more94 min
Jan 13, 11:40 PM ESTTornado WatchSPCAlamance, Anson, Cabarrus, Caswell, Chatham, Cumberland and 29 more5 hr
Jan 14, 2:26 AM ESTMesoscale DiscussionSPCAlamance, Anson, Bladen, Caswell, Chatham, Columbus and 34 more94 min
Jan 14, 3:56 AM ESTMesoscale DiscussionSPCBladen, Chatham, Columbus, Cumberland, Duplin, Durham and 24 more64 min
Jan 14, 5:00 AM ESTTornado WatchSPCBertie, Camden, Chowan, Edgecombe, Franklin, Gates and 12 more6 hr
Jan 14, 7:05 AM ESTMesoscale DiscussionSPCBertie, Camden, Chowan, Currituck, Dare, Edgecombe and 11 more85 min
Jan 14, 10:23 AM ESTMesoscale DiscussionSPCCraven67 min

Nearby

Mesoscale Discussions in North Carolina, 2005Mesoscale Discussions in South Carolina, 2005Every mesoscale discussion in 2005

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.