Alert archive / North Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 173, NWS Raleigh, NC

August 15, 20235 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Aug 15, 2023, 3:13 PM EDT for 5 counties in North Carolina. It was in force for 47 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, 3:13 PM EDT (19:13 UTC)
Expired: Aug 15, 2023, 4:00 PM EDT
In force: 47 min
Issued by: NWS Raleigh, NC
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Franklin County, NC, Johnston County, NC, Nash County, NC, Wake County, NC, Wilson County, NC

The radar

The Raleigh/Durham radar (KRAX), 28 km from the middle of the area, began a volume at 19:15 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
Aug 15, 1:48 PM EDT	Severe Thunderstorm Watch	SPC	7 hr

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 7.2 hours before the alert went out and 152 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, 3:05 PM EDT, 8 minutes earlier.

Area forecast discussion, Aug 15, 3:05 PM EDT, 8 minutes before

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Hazardous weather outlook, Aug 15, 1:52 PM EDT, 1 hour 21 minutes before

Hazardous Weather Outlook
National Weather Service Raleigh NC
152 PM EDT Tue Aug 15 2023

NCZ007>009-021>023-038-039-161800-
Person-Granville-Vance-Forsyth-Guilford-Alamance-Davidson-Randolph-
152 PM EDT Tue Aug 15 2023

...SEVERE THUNDERSTORM WATCH 649 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

NCZ010-024>026-040-073>076-083-084-161800-
Warren-Orange-Durham-Franklin-Chatham-Stanly-Montgomery-Moore-Lee-
Anson-Richmond-
152 PM EDT Tue Aug 15 2023

...HEAT ADVISORY IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 649 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Heat Advisory.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

NCZ011-027-028-041>043-077-078-085-086-088-089-161800-
Halifax-Nash-Edgecombe-Wake-Johnston-Wilson-Harnett-Wayne-Scotland-
Hoke-Cumberland-Sampson-
152 PM EDT Tue Aug 15 2023

...EXCESSIVE HEAT WARNING IN EFFECT UNTIL 7 PM EDT THIS EVENING...
...SEVERE THUNDERSTORM WATCH 649 IN EFFECT UNTIL 9 PM EDT THIS
EVENING...

This Hazardous Weather Outlook is for central North Carolina.

.DAY ONE...This afternoon and tonight.

Please listen to NOAA Weather Radio or go to weather.gov on the
Internet for more information about the following hazards.

   Excessive Heat Warning.
   Severe Thunderstorm Watch.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Hazardous weather is not expected at this time.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely be needed.

JJT

In the hours before

Special weather statement, Aug 15, 2:14 PM EDT, 59 minutes before

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

NCZ021-022-038-151915-
Guilford NC-Forsyth NC-Davidson NC-
214 PM EDT Tue Aug 15 2023

...A strong thunderstorm will impact portions of Forsyth, northern
Davidson and western Guilford Counties through 315 PM EDT...

At 214 PM EDT, Doppler radar was tracking a strong thunderstorm near
Mocksville, moving northeast at 35 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...
Greensboro, Winston-Salem, High Point, Lexington, Thomasville,
Kernersville, Clemmons, Bermuda Run, Huntsville and Lewisville.

This includes the following highways...
 Interstate 85 between Mile Markers 97 and 104.
 Interstate 40 between Mile Markers 182 and 216.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

A Severe Thunderstorm Watch remains in effect until 900 PM EDT for
central North Carolina.

&&

LAT...LON 3614 8044 3617 8044 3626 8025 3626 7999
      3606 7985 3592 7996 3592 8005 3581 8005
      3582 8047 3583 8049 3583 8043 3585 8038
      3589 8041 3589 8037 3596 8038 3599 8042
      3601 8042 3606 8046 3605 8051 3609 8052
TIME...MOT...LOC 1814Z 244DEG 29KT 3592 8064

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

BLAES

Special weather statement, Aug 15, 2:23 PM EDT, 50 minutes before

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Local storm report, Aug 15, 2:50 PM EDT, 23 minutes before

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Special weather statement, Aug 15, 3:00 PM EDT, 13 minutes before

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Local storm report, Aug 15, 3:07 PM EDT, 6 minutes before

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Local storm report, Aug 15, 3:11 PM EDT, 2 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 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, 1:45 PM EDT	Severe Thunderstorm Warning	RAH	Durham, Orange, Person	45 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, 3:18 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.