Alert archive / North Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 164, NWS Raleigh, NC

August 10, 2023Sampson County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Aug 10, 2023, 5:55 PM EDT for Sampson County, North Carolina. It was in force for 20 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 10, 2023, 5:55 PM EDT (21:55 UTC)
Expired: Aug 10, 2023, 6:15 PM EDT
In force: 20 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

County Sampson County, NC

The radar

The Raleigh/Durham radar (KRAX), 76 km from the middle of the area, began a volume at 21:58 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, 9.9 hours before the alert went out and 138 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: 1515 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 738 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 91 m²/s²
0-3 km storm-relative helicity: 183 m²/s²
Significant tornado parameter: 0.4
Supercell composite: 4.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Aug 10, 5:17 PM EDT, 38 minutes earlier.

Area forecast discussion, Aug 10, 5:17 PM EDT, 38 minutes before

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Hazardous weather outlook, Aug 10, 2:14 PM EDT, 3 hours 41 minutes before

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In the hours before

Special weather statement, Aug 10, 11:58 AM EDT, 5 hours 57 minutes before

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Special weather statement, Aug 10, 5:43 PM EDT, 12 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
Aug 10, 9:37 AM EDT	Special Weather Statement	RAH	Anson, Richmond	53 min
Aug 10, 9:44 AM EDT	Special Weather Statement	RAH	Montgomery, Stanly	31 min
Aug 10, 10:25 AM EDT	Severe Thunderstorm Warning	RAH	Anson, Richmond	35 min
Aug 10, 10:34 AM EDT	Special Weather Statement	RAH	Chatham, Orange	41 min
Aug 10, 10:34 AM EDT	Special Weather Statement	RAH	Hoke, Scotland	26 min
Aug 10, 11:03 AM EDT	Special Weather Statement	RAH	Scotland	27 min
Aug 10, 11:58 AM EDT	Special Weather Statement	RAH	Sampson	32 min
Aug 10, 5:43 PM EDT	Special Weather Statement	RAH	Sampson	32 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2023 Every severe thunderstorm warning in 2023

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.