Alert archive / North Carolina / Special Weather Statements in 2020

Special Weather Statement, NWS Blacksburg, VA

June 20, 2020Patrick County, Virginia; 4 counties in North Carolina

NWS Blacksburg, VA issued this special weather statement at Jun 20, 2020, 12:35 PM EDT for Patrick County, Virginia; 4 counties in North Carolina. It was in force for 40 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 20, 2020, 12:35 PM EDT (16:35 UTC)
Expired: Jun 20, 2020, 1:15 PM EDT
In force: 40 min
Issued by: NWS Blacksburg, VA

Counties Stokes County, NC, Surry County, NC, Wilkes County, NC, Yadkin County, NC, Patrick County, VA

The radar

The Roanoke radar (KFCX), 86 km from the middle of the area, began a volume at 16:35 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, 4.6 hours before the alert went out and 79 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: 85 J/kg
Mixed-layer CIN: -86 J/kg
Mixed-layer LCL: 884 m above ground
0-6 km bulk shear: 11 kt
0-1 km storm-relative helicity: 25 m²/s²
0-3 km storm-relative helicity: 42 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 20, 10:55 AM EDT, 1 hour 40 minutes earlier.

Area forecast discussion, Jun 20, 10:55 AM EDT, 1 hour 40 minutes before

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Hazardous weather outlook, Jun 20, 3:31 AM EDT, 9 hours 4 minutes before

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In the hours before

Local storm report, Jun 20, 10:35 AM EDT, 2 hours before

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Local storm report, Jun 20, 11:16 AM EDT, 1 hour 19 minutes before

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Special weather statement, Jun 20, 11:33 AM EDT, 1 hour 2 minutes before

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Special weather statement, Jun 20, 11:53 AM EDT, 42 minutes before

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Special weather statement, Jun 20, 11:57 AM EDT, 38 minutes before

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Special weather statement, Jun 20, 12:35 PM 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
Jun 20, 11:33 AM EDT	Special Weather Statement	RNK	Carroll, City of Galax	27 min
Jun 20, 12:47 PM EDT	Flash Flood Watch	RNK	Alleghany, Amherst, Appomattox, Bath, Bedford, Bland and 28 more	8 hr
Jun 20, 12:53 PM EDT	Areal Flood Advisory	RNK	Carroll, Pulaski, Wythe	3 hr
Jun 20, 4:11 PM EDT	Special Weather Statement	RNK	Buckingham	34 min
Jun 20, 4:50 PM EDT	Special Weather Statement	RNK	Bedford	25 min
Jun 20, 5:41 PM EDT	Special Weather Statement	RNK	Bedford	34 min
Jun 20, 6:10 PM EDT	Special Weather Statement	RNK	Bedford	35 min
Jun 20, 7:34 PM EDT	Special Weather Statement	RNK	Campbell	26 min
Jun 20, 7:45 PM EDT	Severe Thunderstorm Warning	RNK	Campbell	30 min
Jun 19, 8:01 PM EDT	Areal Flood Advisory	RNK	Caswell	111 min
Jun 20, 11:53 AM EDT	Special Weather Statement	RNK	Stokes	22 min
Jun 20, 11:57 AM EDT	Special Weather Statement	RNK	Surry	33 min
Jun 20, 12:44 PM EDT	Areal Flood Advisory	RNK	Surry	3 hr
Jun 20, 1:16 PM EDT	Special Weather Statement	RNK	Stokes, Surry, Wilkes, Yadkin	44 min
Jun 20, 1:33 PM EDT	Areal Flood Advisory	RNK	Yadkin	3 hr
Jun 20, 2:44 PM EDT	Special Weather Statement	RNK	Caswell	31 min
Jun 20, 2:51 PM EDT	Special Weather Statement	RNK	Alleghany, Wilkes	39 min
Jun 20, 3:23 PM EDT	Special Weather Statement	RNK	Caswell	37 min

Nearby

Special Weather Statements in North Carolina, 2020 Special Weather Statements in Virginia, 2020 Every special weather statement in 2020

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.