Alert archive / Virginia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 151, NWS Baltimore/Washington

May 31, 2019Augusta County, Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at May 31, 2019, 5:02 PM EDT for Augusta County, Virginia. It was in force for 43 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 31, 2019, 5:02 PM EDT (21:02 UTC)
Expired
May 31, 2019, 5:45 PM EDT
In force
43 min
Issued by
NWS Baltimore/Washington
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Augusta County, VA

The radar

The Roanoke radar (KFCX), 162 km from the middle of the area, began a volume at 21:06 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

Roanoke, VA (KRNK), launched 12:00Z, 9.0 hours before the alert went out and 112 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 2019-05-31Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 22 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 2019-05-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 15 square meters per square second.1939587897Sfc1 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
22 J/kg
Mixed-layer CIN
-91 J/kg
Mixed-layer LCL
906 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
15 m²/s²
0-3 km storm-relative helicity
104 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

Hazardous weather outlook, May 30, 7:45 PM EDT, 21 hours 17 minutes before
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The office that day

Everything else NWS Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 30, 8:03 PM EDTSpecial Marine WarningLWX42 min
May 31, 5:32 PM EDTSevere Thunderstorm WarningLWXAugusta, Nelson17 min
May 31, 5:40 PM EDTSevere Thunderstorm WarningLWXAugusta, Rockingham28 min
May 31, 6:03 PM EDTAreal Flood WarningLWXAlbemarle, Nelson, City of Charlottesville3 hr
May 31, 6:26 PM EDTSevere Thunderstorm WarningLWXAlbemarle, Greene, Orange, Rockingham38 min
May 31, 6:32 PM EDTAreal Flood WarningLWXGreene, Page, Rockingham2 hr
May 31, 6:49 PM EDTAreal Flood WarningLWXAlbemarle, City of Charlottesville2 hr
May 31, 7:35 PM EDTAreal Flood WarningLWXGreene, Orange71 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.