Alert archive / Virginia / Severe Thunderstorm Warnings in 1997

Severe Thunderstorm Warning 86, NWS Wakefield, VA

July 4, 1997Mecklenburg County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Jul 4, 1997, 9:44 PM EDT for Mecklenburg County, Virginia. It was in force for 31 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 4, 1997, 9:44 PM EDT (01:44 UTC)
Expired
Jul 4, 1997, 10:15 PM EDT
In force
31 min
Issued by
NWS Wakefield, VA
Area
Whole counties

County Mecklenburg County, VA

The nearest sounding before it

Roanoke, VA (KRNK), launched 00:00Z, 1.7 hours before the alert went out and 116 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 00:00Z on 1997-07-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 322 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 00:00Z on 1997-07-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 30 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
322 J/kg
Mixed-layer CIN
-33 J/kg
Mixed-layer LCL
1636 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
30 m²/s²
0-3 km storm-relative helicity
194 m²/s²
Significant tornado parameter
0.1
Supercell composite
1.3

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 Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 4, 8:57 PM EDTSevere Thunderstorm WarningAKQPrince Edward33 min
Jul 4, 9:44 PM EDTSevere Thunderstorm WarningAKQAmelia31 min
Jul 5, 12:44 AM EDTSevere Thunderstorm WarningAKQBertie, Northampton51 min
Jul 5, 1:30 AM EDTSevere Thunderstorm WarningAKQChowan35 min
Jul 5, 1:58 AM EDTSevere Thunderstorm WarningAKQPerquimans32 min
Jul 5, 6:07 PM EDTSevere Thunderstorm WarningAKQPasquotank, Perquimans33 min
Jul 5, 7:48 PM EDTSevere Thunderstorm WarningAKQBertie, Hertford32 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1997Every severe thunderstorm warning in 1997

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.