Alert archive / Virginia / Severe Thunderstorm Warnings in 2003

Severe Thunderstorm Warning 104, NWS Wakefield, VA

November 19, 2003Mecklenburg County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at Nov 19, 2003, 11:13 AM EST for Mecklenburg County, Virginia. It was in force for 27 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
Nov 19, 2003, 11:13 AM EST (16:13 UTC)
Expired
Nov 19, 2003, 11:40 AM EST
In force
27 min
Issued by
NWS Wakefield, VA
Area
Counties, with a storm outline in the text

County Mecklenburg County, VA

The radar

The Raleigh/Durham radar (KRAX), 113 km from the middle of the area, began a volume at 16:14 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 watch it was issued in

The SPC watch in force over the same counties when this warning went out.

IssuedProductOfficeLasted
Nov 19, 8:50 AM ESTTornado WatchSPC6 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 4.2 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 12:00Z on 2003-11-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 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 2003-11-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 369 square meters per square second.1939587897117Sfc1 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
566 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
369 m²/s²
0-3 km storm-relative helicity
578 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

Everything else NWS Wakefield, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Nov 19, 11:35 AM ESTSevere Thunderstorm WarningAKQLunenburg30 min
Nov 19, 2:25 PM ESTSpecial Marine WarningAKQ50 min
Nov 19, 2:25 PM ESTSpecial Marine WarningAKQ50 min
Nov 19, 3:11 PM ESTSpecial Marine WarningAKQ64 min
Nov 19, 3:37 PM ESTSpecial Marine WarningAKQ23 min
Nov 19, 3:37 PM ESTSpecial Marine WarningAKQ23 min
Nov 19, 4:17 PM ESTSpecial Marine WarningAKQ58 min
Nov 19, 4:17 PM ESTSpecial Marine WarningAKQ58 min
Nov 19, 4:17 PM ESTSpecial Marine WarningAKQ58 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2003Every severe thunderstorm warning in 2003

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.