Alert archive / North Carolina / Special Weather Statements in 2018

Special Weather Statement, NWS Raleigh, NC

December 28, 201814 counties in North Carolina

NWS Raleigh, NC issued this special weather statement at Dec 28, 2018, 3:12 PM EST for 14 counties in North Carolina. It was in force for 63 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued: Dec 28, 2018, 3:12 PM EST (20:12 UTC)
Expired: Dec 28, 2018, 4:15 PM EST
In force: 63 min
Issued by: NWS Raleigh, NC

Counties Cumberland County, NC, Edgecombe County, NC, Franklin County, NC, Halifax County, NC, Harnett County, NC, Hoke County, NC, Johnston County, NC, Lee County, NC, Moore County, NC, Nash County, NC, Richmond County, NC, Scotland County, NC, Wake County, NC, Wilson County, NC

The radar

The Raleigh/Durham radar (KRAX), 12 km from the middle of the area, began a volume at 20:10 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 12:00Z, 8.2 hours before the alert went out and 165 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: 28 J/kg
Mixed-layer CIN: -12 J/kg
Mixed-layer LCL: 719 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 312 m²/s²
0-3 km storm-relative helicity: 404 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

The local office's own words before this special weather statement went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Raleigh, NC wrote its last area forecast discussion before this special weather statement went out at Dec 28, 3:08 PM EST, 4 minutes earlier.

Area forecast discussion, Dec 28, 3:08 PM EST, 4 minutes before

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Hazardous weather outlook, Dec 28, 3:59 AM EST, 11 hours 13 minutes before

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In the hours before

Special weather statement, Dec 28, 3:12 PM EST, 0 minutes before

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The office that day

Everything else NWS Raleigh, NC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Dec 28, 4:15 PM EST	Special Weather Statement	RAH	Cumberland, Johnston, Sampson, Wayne	45 min
Dec 28, 4:18 PM EST	Special Weather Statement	RAH	Edgecombe, Nash, Wilson	57 min
Dec 28, 4:51 PM EST	Special Weather Statement	RAH	Sampson	24 min
Dec 28, 4:52 PM EST	Special Weather Statement	RAH	Wilson	53 min
Dec 28, 5:05 PM EST	Special Weather Statement	RAH	Sampson, Wayne	40 min
Dec 28, 5:14 PM EST	Special Weather Statement	RAH	Edgecombe	46 min
Dec 28, 5:48 PM EST	Special Weather Statement	RAH	Sampson	12 min
Dec 28, 6:06 PM EST	Special Weather Statement	RAH	Wayne	24 min

Nearby

Special Weather Statements in North Carolina, 2018 Every special weather statement in 2018

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.