Alert archive / Virginia / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 10, NWS Blacksburg, VA

February 28, 20249 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Feb 28, 2024, 1:12 PM EST for 9 counties in Virginia. It was in force for 48 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: Feb 28, 2024, 1:12 PM EST (18:12 UTC)
Expired: Feb 28, 2024, 2:00 PM EST
In force: 48 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties City of Radford, VA, City of Roanoke, VA, City of Salem, VA, Craig County, VA, Franklin County, VA, Giles County, VA, Montgomery County, VA, Pulaski County, VA, Roanoke County, VA

The radar

The Roanoke radar (KFCX), 21 km from the middle of the area, began a volume at 18:15 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

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 6.2 hours before the alert went out and 131 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1044 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 292 m²/s²
0-3 km storm-relative helicity: 447 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at Feb 27, 6:54 PM EST, 18 hours 18 minutes earlier.

Area forecast discussion, Feb 27, 6:54 PM EST, 18 hours 18 minutes before

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Hazardous weather outlook, Feb 27, 2:23 PM EST, 22 hours 49 minutes before

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</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>
      <p id="message1">
        The site you requested is temporarily down for maintenance or an unexpected outage.
      </p>
      <p id="message2">
        Please try again in a few minutes.
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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Feb 28, 11:27 AM EST	Special Weather Statement	RNK	Tazewell	48 min
Feb 28, 11:31 AM EST	Special Weather Statement	RNK	Bath	29 min
Feb 28, 11:55 AM EST	Special Weather Statement	RNK	Bland, Giles, Tazewell	65 min
Feb 28, 12:22 PM EST	Special Weather Statement	RNK	Alleghany, City of Covington	23 min
Feb 28, 12:38 PM EST	Special Weather Statement	RNK	Botetourt, Craig, Montgomery, Roanoke, Rockbridge, City of Buena Vista and 3 more	52 min
Feb 28, 1:34 PM EST	Special Weather Statement	RNK	Grayson, Smyth, Wythe	26 min
Feb 28, 2:00 PM EST	Special Weather Statement	RNK	Carroll, Wythe, City of Galax	30 min
Feb 28, 2:27 PM EST	Special Weather Statement	RNK	Floyd	33 min
Feb 28, 4:10 PM EST	Special Weather Statement	RNK	Charlotte	35 min
Feb 28, 4:45 PM EST	Special Weather Statement	RNK	Halifax, Pittsylvania, City of Danville	30 min
Feb 28, 5:31 PM EST	Special Weather Statement	RNK	Halifax	29 min
Feb 28, 4:48 PM EST	Special Weather Statement	RNK	Rockingham, Stokes	27 min
Feb 28, 10:48 AM EST	Special Weather Statement	RNK	Greenbrier	27 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2024 Every severe thunderstorm warning in 2024

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.