Alert archive / North Carolina / Mesoscale Discussions in 2022

Mesoscale Discussion 883

May 23, 202232 counties in North Carolina

The Storm Prediction Center issued this mesoscale discussion at May 23, 2022, 3:38 PM EDT for 32 counties in North Carolina. It was in force for 2 hr.

The area

The outline as issued.

The facts

Issued
May 23, 2022, 3:38 PM EDT (19:38 UTC)
Expired
May 23, 2022, 5:45 PM EDT
In force
2 hr
Issued by
the Storm Prediction Center
Concerning
Severe potential...watch unlikely
Chance of a watch
20%
All 32 counties

Alamance County, NC, Beaufort County, NC, Bertie County, NC, Carteret County, NC, Chatham County, NC, Chowan County, NC, Craven County, NC, Cumberland County, NC, Duplin County, NC, Durham County, NC, Edgecombe County, NC, Franklin County, NC, Granville County, NC, Greene County, NC, Halifax County, NC, Harnett County, NC, Hyde County, NC, Johnston County, NC, Jones County, NC, Lee County, NC, Lenoir County, NC, Martin County, NC, Nash County, NC, Onslow County, NC, Orange County, NC, Pamlico County, NC, Pitt County, NC, Sampson County, NC, Wake County, NC, Washington County, NC, Wayne County, NC, Wilson County, NC

The radar

The Raleigh/Durham radar (KRAX), 63 km from the middle of the area, began a volume at 19:42 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.6 hours before the alert went out and 198 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 12:00Z on 2022-05-23Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 153 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 12:00Z on 2022-05-23The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 69 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
153 J/kg
Mixed-layer CIN
-80 J/kg
Mixed-layer LCL
926 m above ground
0-6 km bulk shear
23 kt
0-1 km storm-relative helicity
69 m²/s²
0-3 km storm-relative helicity
146 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.1

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.

IssuedProductOfficeCountiesLasted
May 23, 1:20 PM EDTMesoscale DiscussionSPCAnson, Bladen, Cabarrus, Chatham, Cumberland, Davidson and 16 more115 min
May 23, 1:57 PM EDTMesoscale DiscussionSPCPolk, Rutherford2 hr
May 23, 4:11 PM EDTMesoscale DiscussionSPCCleveland, Gaston, Mecklenburg94 min
May 23, 4:27 PM EDTTornado WatchSPCCleveland, Polk, Rutherford5 hr
May 23, 6:00 PM EDTMesoscale DiscussionSPCCatawba, Cleveland, Gaston, Lincoln, Mecklenburg, Polk and 1 more2 hr

Nearby

Mesoscale Discussions in North Carolina, 2022Every mesoscale discussion in 2022

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.