Alert archive / Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Blacksburg, VA

March 27, 2021Smyth County, Tazewell County, Virginia

NWS Blacksburg, VA issued this special weather statement at Mar 27, 2021, 11:26 AM EDT for Smyth County, Tazewell County, Virginia. It was in force for 64 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: Mar 27, 2021, 11:26 AM EDT (15:26 UTC)
Expired: Mar 27, 2021, 12:30 PM EDT
In force: 64 min
Issued by: NWS Blacksburg, VA

Counties Smyth County, VA, Tazewell County, VA

The radar

The Roanoke radar (KFCX), 126 km from the middle of the area, began a volume at 15:27 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, 3.4 hours before the alert went out and 173 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: 2434 m above ground
0-6 km bulk shear: 53 kt
0-1 km storm-relative helicity: 60 m²/s²
0-3 km storm-relative helicity: 145 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 Mar 27, 7:02 AM EDT, 4 hours 24 minutes earlier.

Area forecast discussion, Mar 27, 7:02 AM EDT, 4 hours 24 minutes before

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Hazardous weather outlook, Mar 27, 3:50 AM EDT, 7 hours 36 minutes before

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In the hours before

Special weather statement, Mar 27, 11:26 AM EDT, 0 minutes before

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The office that day

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

Issued	Product	Office	Counties	Lasted
Mar 27, 11:52 AM EDT	Severe Thunderstorm Warning	RNK	Bland, Grayson, Smyth, Tazewell, Wythe	53 min
Mar 27, 12:22 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Grayson, Smyth, Wythe, City of Galax	53 min
Mar 27, 1:11 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Grayson, Montgomery, Patrick, Pulaski and 2 more	64 min
Mar 27, 1:15 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Grayson, Smyth, Tazewell, Wythe	60 min
Mar 27, 2:04 PM EDT	Severe Thunderstorm Warning	RNK	Floyd, Franklin, Patrick	41 min
Mar 27, 2:06 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Carroll, Grayson, Pulaski, Smyth, Wythe and 1 more	39 min
Mar 27, 2:38 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Campbell, Franklin, Pittsylvania	52 min
Mar 27, 2:43 PM EDT	Special Weather Statement	RNK	Carroll, Floyd, Henry, Patrick, Pulaski	47 min
Mar 27, 2:56 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Floyd, Franklin, Henry, Montgomery, Patrick and 4 more	64 min
Mar 27, 3:44 PM EDT	Special Weather Statement	RNK	Caswell	31 min

Nearby

Special Weather Statements in Virginia, 2021 Every 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.