Alert archive / Virginia / Severe Thunderstorm Warnings in 1996

Severe Thunderstorm Warning 113, NWS Baltimore/Washington

July 19, 1996Prince William County, City of Manassas, City of Manassas Park, Virginia

NWS Baltimore/Washington issued this severe thunderstorm warning at Jul 19, 1996, 4:59 PM EDT for Prince William County, City of Manassas, City of Manassas Park, Virginia. It was in force for 66 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 19, 1996, 4:59 PM EDT (20:59 UTC)
Expired
Jul 19, 1996, 6:05 PM EDT
In force
66 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

Counties City of Manassas, VA, City of Manassas Park, VA, Prince William County, VA

The radar

The Sterling radar (KLWX), 26 km from the middle of the area, began a volume at 20:59 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, 9.0 hours before the alert went out and 24 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 1996-07-19Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 531 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 1996-07-19The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 207 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
531 J/kg
Mixed-layer CIN
-151 J/kg
Mixed-layer LCL
810 m above ground
0-6 km bulk shear
43 kt
0-1 km storm-relative helicity
207 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.7

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
Jul 19, 3:20 PM EDTTornado WarningLWXLoudoun35 min
Jul 19, 4:01 PM EDTTornado WarningLWXFairfax49 min
Jul 19, 4:08 PM EDTTornado WarningLWXLoudoun47 min
Jul 19, 4:20 PM EDTSevere Thunderstorm WarningLWXArlington, Fairfax, City of Alexandria, City of Falls Church50 min
Jul 19, 4:20 PM EDTSevere Thunderstorm WarningLWXCity of Fairfax50 min
Jul 19, 5:30 PM EDTSevere Thunderstorm WarningLWXStafford50 min
Jul 19, 6:06 PM EDTSevere Thunderstorm WarningLWXKing George49 min
Jul 19, 9:38 AM EDTFlash Flood WarningLWXFrederick, Washington92 min
Jul 19, 12:34 PM EDTSevere Thunderstorm WarningLWXWashington41 min
Jul 19, 12:43 PM EDTSevere Thunderstorm WarningLWXFrederick62 min
Jul 19, 2:22 PM EDTSevere Thunderstorm WarningLWXWashington63 min
Jul 19, 2:41 PM EDTTornado WarningLWXFrederick34 min
Jul 19, 3:10 PM EDTSevere Thunderstorm WarningLWXCarroll, Frederick45 min
Jul 19, 3:35 PM EDTFlash Flood WarningLWXFrederick65 min
Jul 19, 3:38 PM EDTTornado WarningLWXMontgomery47 min
Jul 19, 3:49 PM EDTTornado WarningLWXBaltimore, Carroll36 min
Jul 19, 4:10 PM EDTTornado WarningLWXBaltimore, City of Baltimore50 min
Jul 19, 4:40 PM EDTSevere Thunderstorm WarningLWXPrince George's50 min
Jul 19, 4:55 PM EDTSevere Thunderstorm WarningLWXCharles65 min
Jul 19, 7:49 AM EDTFlash Flood WarningLWXHampshire, Mineral3 hr
Jul 19, 10:47 AM EDTFlash Flood WarningLWXGrant, Hampshire, Hardy, Mineral5 hr
Jul 19, 2:48 PM EDTSevere Thunderstorm WarningLWXBerkeley32 min

Nearby

Severe Thunderstorm Warnings in Virginia, 1996Every severe thunderstorm warning in 1996

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.