Alert archive / Virginia / Flash Flood Warnings in 1996

Flash Flood Warning 92, NWS Baltimore/Washington

June 19, 1996Loudoun County, Virginia; Frederick County, Maryland

NWS Baltimore/Washington issued this flash flood warning at Jun 19, 1996, 9:16 PM EDT for Loudoun County, Virginia; Frederick County, Maryland. It was in force for 119 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 19, 1996, 9:16 PM EDT (01:16 UTC)
Expired
Jun 19, 1996, 11:15 PM EDT
In force
119 min
Issued by
NWS Baltimore/Washington
Area
Whole counties

Counties Frederick County, MD, Loudoun County, VA

The nearest sounding before it

Washington/Dulle, VA (KIAD), launched 00:00Z, 1.3 hours before the alert went out and 38 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 00:00Z on 1996-06-20Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2035 joules per kilogram.LCLEL10008507005003002001001 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 00:00Z on 1996-06-20The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 71 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
2035 J/kg
Mixed-layer CIN
-5 J/kg
Mixed-layer LCL
747 m above ground
0-6 km bulk shear
16 kt
0-1 km storm-relative helicity
71 m²/s²
0-3 km storm-relative helicity
100 m²/s²
Significant tornado parameter
0.6
Supercell composite
5.0

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 19, 9:16 PM EDTFlash Flood WarningLWXFairfax119 min
Jun 20, 5:44 PM EDTSevere Thunderstorm WarningLWXFauquier46 min
Jun 19, 9:01 PM EDTFlash Flood WarningLWXMontgomery119 min
Jun 19, 9:52 PM EDTFlash Flood WarningLWXBaltimore, City of Baltimore2 hr
Jun 19, 10:24 PM EDTFlash Flood WarningLWXCarroll, Howard2 hr
Jun 19, 10:55 PM EDTFlash Flood WarningLWXMontgomery3 hr
Jun 19, 11:22 PM EDTFlash Flood WarningLWXFrederick3 hr
Jun 19, 11:56 PM EDTFlash Flood WarningLWXBaltimore2 hr
Jun 20, 12:30 PM EDTFlash Flood WarningLWXSaint Mary's2 hr
Jun 20, 5:59 PM EDTFlash Flood WarningLWXWashington46 min
Jun 20, 5:59 PM EDTSevere Thunderstorm WarningLWXWashington46 min
Jun 20, 6:45 PM EDTFlash Flood WarningLWXWashington2 hr
Jun 20, 7:23 PM EDTFlash Flood WarningLWXFrederick3 hr
Jun 20, 2:08 PM EDTFlash Flood WarningLWXHampshire3 hr

Nearby

Flash Flood Warnings in Virginia, 1996Flash Flood Warnings in Maryland, 1996Every flash flood 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.