Alert archive / North Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 167, NWS Raleigh, NC

August 15, 2023Durham County, Orange County, Person County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Aug 15, 2023, 1:45 PM EDT for Durham County, Orange County, Person County, North Carolina. It was in force for 45 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 15, 2023, 1:45 PM EDT (17:45 UTC)
Expired: Aug 15, 2023, 2:30 PM EDT
In force: 45 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 1.25 in
Wind: 60.0 mph

Counties Durham County, NC, Orange County, NC, Person County, NC

The radar

The Raleigh/Durham radar (KRAX), 71 km from the middle of the area, began a volume at 17:44 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, 5.8 hours before the alert went out and 82 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: 832 J/kg
Mixed-layer CIN: -139 J/kg
Mixed-layer LCL: 1002 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: -5 m²/s²
0-3 km storm-relative helicity: -9 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.1

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 15, 9:46 AM EDT, 3 hours 59 minutes earlier.

Area forecast discussion, Aug 15, 9:46 AM EDT, 3 hours 59 minutes before

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Hazardous weather outlook, Aug 15, 4:33 AM EDT, 9 hours 12 minutes before

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In the hours before

Special weather statement, Aug 15, 1:26 PM EDT, 19 minutes before

Special Weather Statement
National Weather Service Raleigh NC
126 PM EDT Tue Aug 15 2023

NCZ007-023>025-151800-
Durham NC-Alamance NC-Person NC-Orange NC-
126 PM EDT Tue Aug 15 2023

...A strong thunderstorm will impact portions of central Alamance,
Person, Orange and northwestern Durham Counties through 200 PM EDT...

At 126 PM EDT, Doppler radar was tracking a strong thunderstorm near
Baynes, or near Prospect Hill, moving northeast at 40 mph.

HAZARD...Winds in excess of 40 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
         unsecured objects. Minor damage to outdoor objects is
         possible.

Locations impacted include...
Durham, Chapel Hill, Burlington, Graham, Roxboro, Hillsborough,
Mebane, Rougemont, Concord and Haw River.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 3647 7880 3601 7880 3591 7933 3610 7949
      3625 7948 3624 7915 3648 7914
TIME...MOT...LOC 1726Z 244DEG 33KT 3620 7927

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...40 MPH

AS

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 15, 3:22 AM EDT	Excessive Heat Warning	RAH	Cumberland, Edgecombe, Halifax, Harnett, Hoke, Johnston and 6 more	16 hr
Aug 15, 1:26 PM EDT	Special Weather Statement	RAH	Alamance, Durham, Orange, Person	34 min
Aug 15, 2:06 PM EDT	Special Weather Statement	RAH	Chatham, Durham, Franklin, Granville, Harnett, Lee and 4 more	84 min
Aug 15, 2:14 PM EDT	Special Weather Statement	RAH	Forsyth	61 min
Aug 15, 2:16 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Granville, Person, Vance	44 min
Aug 15, 2:23 PM EDT	Special Weather Statement	RAH	Wake	52 min
Aug 15, 2:25 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Vance, Warren	50 min
Aug 15, 2:30 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth	45 min
Aug 15, 2:51 PM EDT	Severe Thunderstorm Warning	RAH	Halifax, Warren	39 min
Aug 15, 2:56 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Forsyth, Guilford, Randolph	49 min
Aug 15, 3:00 PM EDT	Special Weather Statement	RAH	Franklin, Nash	60 min
Aug 15, 3:13 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Johnston, Nash, Wake, Wilson	47 min
Aug 15, 3:18 PM EDT	Special Weather Statement	RAH	Granville, Vance	27 min
Aug 15, 3:29 PM EDT	Severe Thunderstorm Warning Destructive damage threat	RAH	Alamance, Chatham, Guilford, Randolph	46 min
Aug 15, 3:30 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Halifax, Nash	45 min
Aug 15, 3:36 PM EDT	Severe Thunderstorm Warning	RAH	Edgecombe, Nash, Wilson	35 min
Aug 15, 3:37 PM EDT	Severe Thunderstorm Warning	RAH	Davidson, Randolph	38 min
Aug 15, 3:51 PM EDT	Severe Thunderstorm Warning Considerable damage threat	RAH	Alamance, Chatham, Durham, Orange	39 min
Aug 15, 3:56 PM EDT	Special Weather Statement	RAH	Harnett, Johnston	64 min
Aug 15, 4:05 PM EDT	Special Weather Statement	RAH	Wilson	55 min
Aug 15, 4:12 PM EDT	Special Weather Statement	RAH	Hoke, Richmond	63 min
Aug 15, 4:13 PM EDT	Special Weather Statement	RAH	Edgecombe	47 min
Aug 15, 4:16 PM EDT	Special Weather Statement	RAH	Wake	44 min
Aug 15, 4:22 PM EDT	Severe Thunderstorm Warning Destructive damage threat	RAH	Durham, Franklin, Granville, Wake	38 min
Aug 15, 4:28 PM EDT	Special Weather Statement	RAH	Chatham, Lee, Moore	62 min
Aug 15, 4:29 PM EDT	Areal Flood Advisory	RAH	Wake	3 hr
Aug 15, 4:38 PM EDT	Severe Thunderstorm Warning	RAH	Johnston	52 min
Aug 15, 4:47 PM EDT	Special Weather Statement	RAH	Franklin, Nash	58 min
Aug 15, 4:49 PM EDT	Severe Thunderstorm Warning Considerable damage threat	RAH	Franklin, Granville, Halifax, Vance, Warren	41 min
Aug 15, 4:51 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Halifax, Nash, Wake	39 min
Aug 15, 5:01 PM EDT	Severe Thunderstorm Warning	RAH	Anson, Davidson, Montgomery, Randolph, Richmond, Stanly	44 min
Aug 15, 5:03 PM EDT	Special Weather Statement	RAH	Wake	27 min
Aug 15, 5:08 PM EDT	Areal Flood Advisory	RAH	Franklin, Johnston, Nash, Wake	3 hr
Aug 15, 5:12 PM EDT	Severe Thunderstorm Warning	RAH	Johnston, Nash, Wayne, Wilson	48 min
Aug 15, 5:14 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Johnston, Wake	46 min
Aug 15, 5:24 PM EDT	Severe Thunderstorm Warning	RAH	Montgomery, Moore	66 min
Aug 15, 5:25 PM EDT	Severe Thunderstorm Warning Considerable damage threat	RAH	Edgecombe, Halifax, Nash, Warren, Wilson	65 min
Aug 15, 5:31 PM EDT	Severe Thunderstorm Warning	RAH	Franklin, Johnston, Nash, Wake, Wayne, Wilson	44 min
Aug 15, 5:35 PM EDT	Areal Flood Advisory	RAH	Cumberland, Harnett, Johnston, Wake	2 hr
Aug 15, 5:38 PM EDT	Flash Flood Warning Considerable damage threat	RAH	Franklin, Wake	2 hr
Aug 15, 5:56 PM EDT	Special Weather Statement	RAH	Cumberland, Sampson	64 min
Aug 15, 6:09 PM EDT	Flash Flood Warning Considerable damage threat	RAH	Edgecombe, Nash, Wilson	2 hr
Aug 15, 6:09 PM EDT	Severe Thunderstorm Warning	RAH	Harnett, Johnston, Sampson, Wayne, Wilson	66 min
Aug 15, 6:11 PM EDT	Severe Thunderstorm Warning	RAH	Chatham, Harnett, Lee, Moore, Wake	49 min
Aug 15, 6:49 PM EDT	Flash Flood Warning Considerable damage threat	RAH	Johnston	2 hr
Aug 15, 6:55 PM EDT	Special Weather Statement	RAH	Wake	35 min
Aug 15, 7:28 PM EDT	Areal Flood Advisory	RAH	Wayne	3 hr
Aug 15, 7:38 PM EDT	Special Weather Statement	RAH	Edgecombe, Wayne, Wilson	52 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.