Alert archive / North Carolina / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 140, NWS Raleigh, NC

July 24, 20234 counties in North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 24, 2023, 1:41 AM EDT for 4 counties in North Carolina. It was in force for 38 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 24, 2023, 1:41 AM EDT (05:41 UTC)
Expired
Jul 24, 2023, 2:19 AM EDT
In force
38 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Durham County, NC, Franklin County, NC, Granville County, NC, Wake County, NC

The radar

The Raleigh/Durham radar (KRAX), 45 km from the middle of the area, began a volume at 05:43 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 00:00Z, 5.7 hours before the alert went out and 212 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-pSkew-T log-p diagram, Newport, NC at 00:00Z on 2023-07-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 753 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Newport, NC at 00:00Z on 2023-07-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -15 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
753 J/kg
Mixed-layer CIN
-13 J/kg
Mixed-layer LCL
993 m above ground
0-6 km bulk shear
30 kt
0-1 km storm-relative helicity
-15 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
-0.0
Supercell composite
-0.6

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 23, 8:01 PM EDTAreal Flood AdvisoryRAHCumberland66 min
Jul 23, 9:59 PM EDTSpecial Weather StatementRAHWilson61 min
Jul 23, 10:16 PM EDTAreal Flood AdvisoryRAHDavidson, Forsyth4 hr
Jul 24, 12:30 AM EDTSpecial Weather StatementRAHJohnston45 min
Jul 24, 12:59 AM EDTSpecial Weather StatementRAHWake46 min
Jul 24, 1:23 AM EDTSpecial Weather StatementRAHWake37 min
Jul 24, 1:53 AM EDTSpecial Weather StatementRAHWarren52 min
Jul 24, 1:58 AM EDTAreal Flood AdvisoryRAHWake79 min
Jul 24, 2:24 AM EDTSpecial Weather StatementRAHDurham, Granville51 min
Jul 24, 2:50 AM EDTSpecial Weather StatementRAHGranville, Vance55 min
Jul 24, 3:25 AM EDTSpecial Weather StatementRAHJohnston50 min
Jul 24, 3:51 AM EDTAreal Flood AdvisoryRAHHalifax99 min
Jul 24, 6:08 AM EDTSpecial Weather StatementRAHHalifax67 min
Jul 24, 6:39 AM EDTAreal Flood AdvisoryRAHEdgecombe, Halifax79 min
Jul 24, 5:10 PM EDTSpecial Weather StatementRAHScotland65 min
Jul 24, 6:18 PM EDTSpecial Weather StatementRAHWake57 min
Jul 24, 7:18 PM EDTSpecial Weather StatementRAHFranklin57 min
Jul 24, 7:38 PM EDTSpecial Weather StatementRAHEdgecombe67 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2023Every 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.