Alert archive / North Carolina / Severe Thunderstorm Warnings in 1990

Severe Thunderstorm Warning 24, NWS Blacksburg, VA

May 2, 1990Randolph County, North Carolina

NWS Blacksburg, VA issued this severe thunderstorm warning at May 2, 1990, 10:55 PM EDT for Randolph County, North Carolina. It was in force for 50 min.

The area

The counties it named.

The facts

Issued
May 2, 1990, 10:55 PM EDT (02:55 UTC)
Expired
May 2, 1990, 11:45 PM EDT
In force
50 min
Issued by
NWS Blacksburg, VA
Area
Whole counties

County Randolph County, NC

The radar

The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 2.9 hours before the alert went out and 42 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, Greensboro/Hi Pt, NC at 00:00Z on 1990-05-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 246 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, Greensboro/Hi Pt, NC at 00:00Z on 1990-05-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 108 square meters per square second.193958Sfc1 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
246 J/kg
Mixed-layer CIN
-11 J/kg
Mixed-layer LCL
866 m above ground
0-6 km bulk shear
45 kt
0-1 km storm-relative helicity
108 m²/s²
0-3 km storm-relative helicity
348 m²/s²
Significant tornado parameter
0.3
Supercell composite
1.8

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 Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 2, 8:03 PM EDTSevere Thunderstorm WarningRNKDavidson42 min
May 2, 8:32 PM EDTSevere Thunderstorm WarningRNKRowan43 min
May 2, 8:51 PM EDTTornado WarningRNKDavidson, Rowan54 min
May 2, 8:56 PM EDTSevere Thunderstorm WarningRNKAlexander34 min
May 2, 9:26 PM EDTSevere Thunderstorm WarningRNKDavie, Iredell64 min
May 2, 10:21 PM EDTSevere Thunderstorm WarningRNKRowan54 min
May 2, 10:39 PM EDTSevere Thunderstorm WarningRNKDavidson66 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1990Every severe thunderstorm warning in 1990

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.