Alert archive / North Carolina / Severe Thunderstorm Warnings in 1992

Severe Thunderstorm Warning 50, NWS Raleigh, NC

June 24, 1992Durham County, Orange County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jun 24, 1992, 4:19 PM EDT for Durham County, Orange County, North Carolina. It was in force for 26 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jun 24, 1992, 4:19 PM EDT (20:19 UTC)
Expired
Jun 24, 1992, 4:45 PM EDT
In force
26 min
Issued by
NWS Raleigh, NC
Area
Whole counties

Counties Durham County, NC, Orange County, NC

What was reported inside it

TimeReportWhereRemark
Jun 24, 4:25 PM EDTHail 0.75Durham, NC

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in. Storm Data before 1996 records only tornadoes, thunderstorm wind and hail.

The nearest sounding before it

Cape Hatteras, NC (KHAT), launched 12:00Z, 8.3 hours before the alert went out and 328 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, Cape Hatteras, NC at 12:00Z on 1992-06-24Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1174 joules per kilogram.LCLEL10008507005003002001001 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, Cape Hatteras, NC at 12:00Z on 1992-06-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 77 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
1174 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
590 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
77 m²/s²
0-3 km storm-relative helicity
155 m²/s²
Significant tornado parameter
0.5
Supercell composite
3.2

Open this sounding in Storm Lab

The text

The text of this product is not in the archive. The NWS text archive before 2002 is incomplete.

The office that day

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

IssuedProductOfficeCountiesLasted
Jun 24, 6:00 PM EDTSevere Thunderstorm WarningRAHFranklin33 min
Jun 24, 6:00 PM EDTSevere Thunderstorm WarningRAHNash45 min
Jun 24, 6:38 PM EDTSevere Thunderstorm WarningRAHDurham, Orange37 min
Jun 24, 7:52 PM EDTSevere Thunderstorm WarningRAHPitt53 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1992Every severe thunderstorm warning in 1992

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive.