Alert archive / North Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 128, NWS Raleigh, NC

July 9, 2023Sampson County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 9, 2023, 3:45 PM EDT for Sampson County, North Carolina. It was in force for 15 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: Jul 9, 2023, 3:45 PM EDT (19:45 UTC)
Expired: Jul 9, 2023, 4:00 PM EDT
In force: 15 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 19:47 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Jul 9, 12:03 PM EDT	Severe Thunderstorm Watch	SPC	8 hr

The nearest sounding before it

Newport, NC (KMHX), launched 12:00Z, 7.8 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: 839 J/kg
Mixed-layer CIN: -22 J/kg
Mixed-layer LCL: 847 m above ground
0-6 km bulk shear: 27 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 29 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 0.5

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 Jul 9, 3:34 PM EDT, 11 minutes earlier.

Area forecast discussion, Jul 9, 3:34 PM EDT, 11 minutes before

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Hazardous weather outlook, Jul 9, 3:11 PM EDT, 34 minutes before

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In the hours before

Special weather statement, Jul 9, 2:41 PM EDT, 1 hour 4 minutes before

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Local storm report, Jul 9, 2:54 PM EDT, 51 minutes before

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Local storm report, Jul 9, 2:57 PM EDT, 48 minutes before

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Local storm report, Jul 9, 3:18 PM EDT, 27 minutes before

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Local storm report, Jul 9, 3:22 PM EDT, 23 minutes before

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Local storm report, Jul 9, 3:24 PM EDT, 21 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
Jul 8, 8:43 PM EDT	Special Weather Statement	RAH	Wayne	62 min
Jul 8, 8:47 PM EDT	Areal Flood Advisory	RAH	Halifax	118 min
Jul 8, 9:34 PM EDT	Special Weather Statement	RAH	Edgecombe, Wilson	56 min
Jul 9, 9:58 AM EDT	Special Weather Statement	RAH	Forsyth	32 min
Jul 9, 10:11 AM EDT	Severe Thunderstorm Warning	RAH	Forsyth	49 min
Jul 9, 10:21 AM EDT	Special Weather Statement	RAH	Forsyth	24 min
Jul 9, 10:48 AM EDT	Special Weather Statement	RAH	Forsyth	42 min
Jul 9, 11:01 AM EDT	Severe Thunderstorm Warning	RAH	Forsyth, Guilford	44 min
Jul 9, 11:11 AM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth, Guilford	49 min
Jul 9, 11:15 AM EDT	Special Weather Statement	RAH	Davidson	45 min
Jul 9, 11:23 AM EDT	Severe Thunderstorm Warning	RAH	Davidson	37 min
Jul 9, 11:47 AM EDT	Severe Thunderstorm Warning	RAH	Alamance, Chatham, Davidson, Guilford, Orange, Randolph	43 min
Jul 9, 11:57 AM EDT	Tornado Warning	RAH	Alamance, Guilford	23 min
Jul 9, 12:04 PM EDT	Areal Flood Advisory	RAH	Alamance, Guilford, Randolph	20 min
Jul 9, 12:24 PM EDT	Flash Flood Warning Considerable damage threat	RAH	Alamance, Chatham, Guilford, Randolph	3 hr
Jul 9, 12:31 PM EDT	Severe Thunderstorm Warning	RAH	Alamance, Chatham, Davidson, Durham, Granville, Lee and 5 more	44 min
Jul 9, 12:58 PM EDT	Areal Flood Advisory	RAH	Chatham, Durham, Orange, Person	2 hr
Jul 9, 1:12 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Durham, Franklin, Granville, Harnett, Lee and 4 more	48 min
Jul 9, 1:18 PM EDT	Flash Flood Warning Considerable damage threat	RAH	Durham, Orange	102 min
Jul 9, 1:19 PM EDT	Special Weather Statement	RAH	Hoke, Montgomery, Moore, Richmond	56 min
Jul 9, 1:38 PM EDT	Flash Flood Warning Considerable damage threat	RAH	Chatham, Harnett, Wake	2 hr
Jul 9, 1:55 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Franklin, Granville, Harnett, Johnston, Sampson and 3 more	35 min
Jul 9, 2:01 PM EDT	Areal Flood Advisory	RAH	Harnett, Johnston	97 min
Jul 9, 2:03 PM EDT	Areal Flood Advisory	RAH	Franklin, Granville, Vance	108 min
Jul 9, 2:24 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Franklin, Halifax, Johnston, Nash, Sampson and 4 more	51 min
Jul 9, 2:41 PM EDT	Special Weather Statement	RAH	Cumberland, Hoke, Sampson, Scotland	64 min
Jul 9, 2:43 PM EDT	Areal Flood Advisory	RAH	Cumberland, Johnston, Sampson, Wayne	111 min
Jul 9, 3:00 PM EDT	Severe Thunderstorm Warning	RAH	Cumberland, Edgecombe, Halifax, Johnston, Nash, Sampson and 3 more	45 min
Jul 9, 7:31 PM EDT	Special Weather Statement	RAH	Davidson	44 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.