Alert archive / Virginia / Severe Thunderstorm Warnings in 1998

Severe Thunderstorm Warning 86, NWS Baltimore/Washington

June 16, 1998Nelson County, Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Jun 16, 1998, 4:29 PM EDT for Nelson 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
Jun 16, 1998, 4:29 PM EDT (20:29 UTC)
Expired
Jun 16, 1998, 5:00 PM EDT
In force
31 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

County Nelson County, VA

The watch it was issued in

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

IssuedProductOfficeLasted
Jun 16, 4:15 PM EDTSevere Thunderstorm WatchSPC6 hr

The nearest sounding before it

Roanoke, VA (KRNK), launched 12:00Z, 8.5 hours before the alert went out and 85 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 1998-06-16Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 121 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 1998-06-16The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 92 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
121 J/kg
Mixed-layer CIN
-77 J/kg
Mixed-layer LCL
914 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
92 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.1

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 Baltimore/Washington issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 16, 3:58 PM EDTSevere Thunderstorm WarningLWXAugusta, City of Staunton, City of Waynesboro62 min
Jun 16, 4:17 PM EDTSevere Thunderstorm WarningLWXAlbemarle, Greene, Madison48 min
Jun 16, 4:26 PM EDTSevere Thunderstorm WarningLWXAlbemarle, City of Charlottesville49 min
Jun 16, 4:38 PM EDTSevere Thunderstorm WarningLWXRockingham, City of Harrisonburg47 min
Jun 16, 4:42 PM EDTSevere Thunderstorm WarningLWXCulpeper48 min
Jun 16, 5:02 PM EDTSevere Thunderstorm WarningLWXFauquier48 min
Jun 16, 5:12 PM EDTSevere Thunderstorm WarningLWXFauquier48 min
Jun 16, 5:27 PM EDTSevere Thunderstorm WarningLWXClarke, Loudoun, Prince William48 min
Jun 16, 5:34 PM EDTSevere Thunderstorm WarningLWXAlbemarle, Orange51 min
Jun 16, 5:38 PM EDTFlash Flood WarningLWXFauquier2 hr
Jun 16, 5:58 PM EDTSevere Thunderstorm WarningLWXAlbemarle, City of Charlottesville47 min
Jun 16, 6:14 PM EDTSevere Thunderstorm WarningLWXSpotsylvania51 min
Jun 16, 5:56 PM EDTSevere Thunderstorm WarningLWXFrederick, Montgomery49 min
Jun 16, 6:08 PM EDTTornado WarningLWXWashington32 min
Jun 16, 6:22 PM EDTSevere Thunderstorm WarningLWXFrederick, Washington48 min
Jun 16, 6:26 PM EDTSevere Thunderstorm WarningLWXBaltimore, Howard49 min
Jun 16, 6:33 PM EDTSevere Thunderstorm WarningLWXCarroll32 min
Jun 16, 6:55 PM EDTFlash Flood WarningLWXCarroll2 hr
Jun 16, 7:16 PM EDTSevere Thunderstorm WarningLWXSaint Mary's49 min
Jun 16, 7:28 PM EDTSevere Thunderstorm WarningLWXCalvert32 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1998Every severe thunderstorm warning in 1998

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.