Alert archive / Virginia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 61, NWS Wakefield, VA

May 2, 2019Louisa County, Virginia

NWS Wakefield, VA issued this severe thunderstorm warning at May 2, 2019, 4:52 PM EDT for Louisa County, Virginia. It was in force for 38 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
May 2, 2019, 4:52 PM EDT (20:52 UTC)
Expired
May 2, 2019, 5:30 PM EDT
In force
38 min
Issued by
NWS Wakefield, VA
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Louisa County, VA

The radar

The Sterling radar (KLWX), 118 km from the middle of the area, began a volume at 20:53 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 nearest sounding before it

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.9 hours before the alert went out and 119 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, Washington/Dulle, VA at 12:00Z on 2019-05-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 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, Washington/Dulle, VA at 12:00Z on 2019-05-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 47 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1142 m above ground
0-6 km bulk shear
40 kt
0-1 km storm-relative helicity
47 m²/s²
0-3 km storm-relative helicity
59 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
May 2, 4:19 PM EDTSpecial Weather StatementAKQLouisa41 min
May 2, 5:33 PM EDTSpecial Weather StatementAKQLouisa27 min
May 2, 5:59 PM EDTSpecial Weather StatementAKQLouisa31 min
May 2, 6:29 PM EDTSpecial Weather StatementAKQCaroline31 min
May 2, 6:53 PM EDTSpecial Weather StatementAKQCumberland37 min
May 2, 6:58 PM EDTSpecial Weather StatementAKQCaroline32 min
May 2, 5:41 PM EDTSpecial Weather StatementAKQDorchester49 min
May 2, 6:32 PM EDTSpecial Weather StatementAKQDorchester, Wicomico43 min
May 2, 6:55 PM EDTSpecial Weather StatementAKQDorchester35 min
May 2, 7:27 PM EDTSpecial Weather StatementAKQDorchester, Wicomico48 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2019Every severe thunderstorm warning in 2019

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.