Alert archive / Virginia / Flash Flood Warnings in 2006

Flash Flood Warning 71, NWS Baltimore/Washington

June 27, 2006Clarke County, Fauquier County, Loudoun County, Virginia; Berkeley County, Jefferson County, West Virginia

NWS Baltimore/Washington issued this flash flood warning at Jun 27, 2006, 1:53 PM EDT for Clarke County, Fauquier County, Loudoun County, Virginia; Berkeley County, Jefferson County, West Virginia. It was in force for 6 hr. 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 27, 2006, 1:53 PM EDT (17:53 UTC)
Expired
Jun 27, 2006, 7:45 PM EDT
In force
6 hr
Issued by
NWS Baltimore/Washington
Area
Counties, with a storm outline in the text

Counties Clarke County, VA, Fauquier County, VA, Loudoun County, VA, Berkeley County, WV, Jefferson County, WV

The radar

The Sterling radar (KLWX), 38 km from the middle of the area, began a volume at 17:53 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, 5.9 hours before the alert went out and 46 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 2006-06-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 654 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 2006-06-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 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
654 J/kg
Mixed-layer CIN
-4 J/kg
Mixed-layer LCL
603 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
133 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.9

Open this sounding in Storm Lab

What forecasters said that day

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

NWS Baltimore/Washington wrote its last area forecast discussion before this flash flood warning went out at Jun 27, 9:14 AM EDT, 4 hours 39 minutes earlier.

Area forecast discussion, Jun 27, 9:14 AM EDT, 4 hours 39 minutes before
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Hazardous weather outlook, Jun 27, 5:23 AM EDT, 8 hours 30 minutes before
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    <section class="card" role="status" aria-live="polite">
      <div class="status" id="status">Temporary Notice</div>
      <h1 id="headline">This service is currently unavailable.</h1>
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        The site you requested is temporarily down for maintenance or an unexpected outage.
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The office that day

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

IssuedProductOfficeCountiesLasted
Jun 26, 10:47 PM EDTFlash Flood WarningLWXArlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church3 hr
Jun 27, 12:10 AM EDTFlash Flood WarningLWXPrince William, City of Manassas, City of Manassas Park6 hr
Jun 27, 4:04 AM EDTCoastal Flood WatchLWXArlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church14 hr
Jun 27, 4:04 AM EDTCoastal Flood StatementLWXArlington, Fairfax, City of Alexandria, City of Fairfax, City of Falls Church7 hr
Jun 27, 5:41 AM EDTFlash Flood WarningLWXArlington, City of Alexandria4 hr
Jun 27, 6:08 AM EDTFlash Flood WarningLWXPrince William, City of Manassas3 hr
Jun 27, 6:14 AM EDTFlash Flood WarningLWXCity of Manassas Park3 hr
Jun 27, 11:57 AM EDTFlash Flood WarningLWXAugusta, Highland, Nelson, City of Staunton, City of Waynesboro4 hr
Jun 27, 12:50 PM EDTFlash Flood WarningLWXSpotsylvania, Stafford, City of Fredericksburg6 hr
Jun 27, 2:36 PM EDTFlash Flood WarningLWXAlbemarle, Greene, Madison, City of Charlottesville6 hr
Jun 27, 2:43 PM EDTFlash Flood WarningLWXPage, Rappahannock, Warren6 hr
Jun 27, 3:34 PM EDTFlash Flood WarningLWXFrederick, City of Winchester6 hr
Jun 27, 3:49 PM EDTFlash Flood WarningLWXAugusta, Nelson, Rockingham, Shenandoah, City of Harrisonburg, City of Staunton and 1 more6 hr
Jun 27, 4:22 PM EDTFlash Flood WarningLWXCulpeper, Orange6 hr
Jun 27, 4:41 PM EDTSpecial Marine WarningLWX2 hr
Jun 27, 6:08 PM EDTCoastal Flood WarningLWXArlington, Fairfax, King George, Stafford, City of Alexandria, City of Fairfax and 1 more17 hr
Jun 27, 6:10 PM EDTFlash Flood WarningLWXArlington, City of Alexandria, City of Falls Church6 hr
Jun 27, 6:43 PM EDTSpecial Marine WarningLWX62 min
Jun 27, 4:20 AM EDTFlash Flood WarningLWXHarford6 hr
Jun 27, 1:30 PM EDTFlash Flood WarningLWXWashington6 hr
Jun 27, 3:00 PM EDTFlash Flood WarningLWXAnne Arundel, Baltimore, Harford, City of Baltimore6 hr
Jun 27, 5:25 PM EDTFlash Flood WarningLWXCarroll, Frederick, Montgomery6 hr
Jun 27, 5:57 PM EDTTornado WarningLWXCharles, Saint Mary's48 min
Jun 27, 7:23 PM EDTFlash Flood WarningLWXWashington4 hr
Jun 27, 4:57 PM EDTFlash Flood WarningLWXHampshire, Hardy, Morgan6 hr

Nearby

Flash Flood Warnings in Virginia, 2006Flash Flood Warnings in West Virginia, 2006Every flash flood warning in 2006

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.