Alert archive / Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Blacksburg, VA

June 10, 2021Amherst County, Appomattox County, Buckingham County, Virginia

NWS Blacksburg, VA issued this special weather statement at Jun 10, 2021, 12:29 PM EDT for Amherst County, Appomattox County, Buckingham County, Virginia. It was in force for 61 min. No storm report in the archive falls inside the area while it was in force.

The area

The outline as issued.

The facts

Issued
Jun 10, 2021, 12:29 PM EDT (16:29 UTC)
Expired
Jun 10, 2021, 1:30 PM EDT
In force
61 min
Issued by
NWS Blacksburg, VA

Counties Amherst County, VA, Appomattox County, VA, Buckingham County, VA

The radar

The Roanoke radar (KFCX), 139 km from the middle of the area, began a volume at 16:29 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, 4.5 hours before the alert went out and 69 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 2021-06-10Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 185 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 2021-06-10The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 39 square meters per square second.1939Sfc1 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
185 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
549 m above ground
0-6 km bulk shear
12 kt
0-1 km storm-relative helicity
39 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

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What forecasters said that day

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

NWS Blacksburg, VA wrote its last area forecast discussion before this special weather statement went out at Jun 10, 9:29 AM EDT, 3 hours earlier.

Area forecast discussion, Jun 10, 9:29 AM EDT, 3 hours before
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  <link rel="stylesheet" href="index.css">
</head>
<body>
  <main class="wrap">
    <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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        Please try again in a few minutes.
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Hazardous weather outlook, Jun 10, 5:19 AM EDT, 7 hours 10 minutes before
Hazardous Weather Outlook
National Weather Service Blacksburg VA
519 AM EDT Thu Jun 10 2021

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>044-507-508-110930-
Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes-
Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Grayson-
Carroll-Floyd-Craig-Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-
Patrick-Franklin-Bedford-Amherst-Henry-Pittsylvania-Campbell-
Appomattox-Buckingham-Halifax-Charlotte-Mercer-Summers-Monroe-
Eastern Greenbrier-Western Greenbrier-
519 AM EDT Thu Jun 10 2021

This Hazardous Weather Outlook is for north central North Carolina,
northwest North Carolina, central Virginia, south central Virginia,
southwest Virginia, west central Virginia and southeast West
Virginia.

.DAY ONE...Today and tonight.

Thunderstorms will produce heavy rain at times this afternoon into
tonight, sometimes at rates exceeding 2 inches per hour in a few
areas for prolonged periods of time. Isolated flash flooding will be
possible.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Storms will produce periods of heavy rain at times on Friday. This
will maintain a threat for localized flash flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Jun 10, 12:29 PM EDT, 0 minutes before
Special Weather Statement
National Weather Service BLACKSBURG VA
1229 PM EDT Thu Jun 10 2021

VAZ035-046-047-101730-
Buckingham-Amherst-Appomattox-
1229 PM EDT Thu Jun 10 2021

...AN AREA OF STRONG THUNDERSTORMS WILL AFFECT
APPOMATTOX...BUCKINGHAM AND AMHERST COUNTIES THROUGH 130 PM EDT...

At 1228 PM EDT, strong thunderstorms were clustered near Naola, or 7
miles east of Big Island, moving east at 5 mph.

Pea size hail is possible with these storms along with very heavy
rainfall.

Locations impacted include...
Buckingham...
Amherst...
Appomattox...
Dillwyn...
Forks Of Buffalo...
Bent Creek...
and Clifford.

Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3734 7846 3740 7859 3725 7868 3720 7880
      3725 7892 3743 7902 3740 7912 3751 7922
      3751 7934 3760 7944 3781 7923 3778 7908
      3772 7907 3754 7884 3763 7882 3764 7872
      3775 7862 3776 7851 3780 7849 3769 7824
TIME...MOT...LOC 1628Z 259DEG 6KT 3753 7923

RAB

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 10, 1:14 PM EDTFlash Flood WatchRNKAlleghany, Amherst, Appomattox, Bath, Buckingham, Rockbridge and 3 more11 hr
Jun 10, 1:14 PM EDTFlash Flood WatchRNKAlleghany, Amherst, Appomattox, Bath, Bedford, Bland and 31 more33 hr
Jun 10, 1:33 PM EDTSpecial Weather StatementRNKBotetourt, City of Roanoke, City of Salem57 min
Jun 10, 1:53 PM EDTSevere Thunderstorm WarningRNKBedford, Botetourt, Craig, Franklin, Roanoke, City of Roanoke and 1 more51 min
Jun 10, 2:06 PM EDTAreal Flood AdvisoryRNKRoanoke, City of Roanoke, City of Salem114 min
Jun 10, 4:41 PM EDTSpecial Weather StatementRNKCampbell34 min
Jun 10, 5:15 PM EDTSpecial Weather StatementRNKCampbell, City of Lynchburg30 min
Jun 10, 5:44 PM EDTSpecial Weather StatementRNKAppomattox46 min
Jun 10, 7:50 PM EDTSpecial Weather StatementRNKAlleghany, City of Covington25 min
Jun 10, 7:59 PM EDTAreal Flood AdvisoryRNKAlleghany, Botetourt, City of Covington2 hr
Jun 10, 5:29 AM EDTSpecial Weather StatementRNKSurry31 min

Nearby

Special Weather Statements in Virginia, 2021Every special weather statement in 2021

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.