Alert archive / North Carolina / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 203, NWS Raleigh, NC

July 20, 2022Chatham County, Lee County, Moore County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 20, 2022, 8:39 PM EDT for Chatham County, Lee County, Moore County, North Carolina. It was in force for 51 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 20, 2022, 8:39 PM EDT (00:39 UTC)
Expired
Jul 20, 2022, 9:30 PM EDT
In force
51 min
Issued by
NWS Raleigh, NC
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Chatham County, NC, Lee County, NC, Moore County, NC

The radar

The Raleigh/Durham radar (KRAX), 76 km from the middle of the area, began a volume at 00:43 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, 0.7 hours before the alert went out and 234 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 2022-07-21Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 940 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 2022-07-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -21 square meters per square second.1939Sfc1 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
940 J/kg
Mixed-layer CIN
-47 J/kg
Mixed-layer LCL
860 m above ground
0-6 km bulk shear
17 kt
0-1 km storm-relative helicity
-21 m²/s²
0-3 km storm-relative helicity
8 m²/s²
Significant tornado parameter
0.0
Supercell composite
-0.2

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Jul 20, 8:16 PM EDTSevere Thunderstorm WarningRAHMontgomery, Richmond44 min
Jul 20, 8:45 PM EDTSpecial Weather StatementRAHMoore45 min
Jul 20, 9:23 PM EDTSpecial Weather StatementRAHHarnett, Lee37 min
Jul 21, 8:46 AM EDTSpecial Weather StatementRAHLee29 min
Jul 21, 9:01 AM EDTSpecial Weather StatementRAHMoore29 min
Jul 21, 12:16 PM EDTSpecial Weather StatementRAHForsyth59 min
Jul 21, 12:41 PM EDTSevere Thunderstorm WarningRAHDavidson, Forsyth, Guilford49 min
Jul 21, 1:01 PM EDTSevere Thunderstorm WarningRAHAlamance, Davidson, Guilford, Randolph44 min
Jul 21, 1:36 PM EDTAreal Flood AdvisoryRAHDavidson, Forsyth, Guilford, Randolph3 hr
Jul 21, 1:53 PM EDTSpecial Weather StatementRAHOrange67 min
Jul 21, 2:06 PM EDTSevere Thunderstorm WarningRAHGranville, Person39 min
Jul 21, 2:43 PM EDTSpecial Weather StatementRAHChatham, Durham, Granville, Vance62 min
Jul 21, 3:16 PM EDTAreal Flood AdvisoryRAHDurham82 min
Jul 21, 3:26 PM EDTSpecial Weather StatementRAHFranklin, Warren79 min
Jul 21, 3:44 PM EDTSpecial Weather StatementRAHWake61 min
Jul 21, 3:47 PM EDTSpecial Weather StatementRAHDurham13 min
Jul 21, 4:11 PM EDTSpecial Weather StatementRAHHalifax, Nash64 min
Jul 21, 4:24 PM EDTSpecial Weather StatementRAHNash21 min
Jul 21, 4:53 PM EDTSevere Thunderstorm WarningRAHHalifax52 min
Jul 21, 5:01 PM EDTSevere Thunderstorm WarningRAHEdgecombe, Halifax, Nash44 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 2022Every severe thunderstorm warning in 2022

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.