Alert archive / North Carolina / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 182, NWS Raleigh, NC

July 31, 1996Orange County, North Carolina

NWS Raleigh, NC issued this severe thunderstorm warning at Jul 31, 1996, 7:14 PM EDT for Orange County, North Carolina. It was in force for 31 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
Jul 31, 1996, 7:14 PM EDT (23:14 UTC)
Expired
Jul 31, 1996, 7:45 PM EDT
In force
31 min
Issued by
NWS Raleigh, NC
Area
Whole counties

County Orange County, NC

The radar

The Raleigh/Durham radar (KRAX), 72 km from the middle of the area, began a volume at 23:16 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.

What was reported inside it

TimeReportWhereRemark
Jul 31, 7:30 PM EDTThunderstorm Wind 0Caldwell, 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.

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 11.2 hours before the alert went out and 131 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, Roanoke, VA at 12:00Z on 1996-07-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 68 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, Roanoke, VA at 12:00Z on 1996-07-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 107 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
68 J/kg
Mixed-layer CIN
-92 J/kg
Mixed-layer LCL
1044 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
107 m²/s²
0-3 km storm-relative helicity
102 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

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
Jul 31, 3:45 PM EDTSevere Thunderstorm WarningRAHCumberland30 min
Jul 31, 4:03 PM EDTSevere Thunderstorm WarningRAHWake42 min
Jul 31, 4:18 PM EDTSevere Thunderstorm WarningRAHMoore42 min
Jul 31, 4:26 PM EDTSevere Thunderstorm WarningRAHFranklin49 min
Jul 31, 4:43 PM EDTSevere Thunderstorm WarningRAHHalifax47 min
Jul 31, 4:52 PM EDTSevere Thunderstorm WarningRAHNash38 min
Jul 31, 5:32 PM EDTSevere Thunderstorm WarningRAHWarren13 min
Jul 31, 6:03 PM EDTSevere Thunderstorm WarningRAHRandolph42 min
Jul 31, 6:24 PM EDTSevere Thunderstorm WarningRAHVance36 min

Nearby

Severe Thunderstorm Warnings in North Carolina, 1996Every severe thunderstorm warning in 1996

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; radar from the NEXRAD Level II archive.