Alert archive / Virginia / Special Weather Statements in 2015

Special Weather Statement, NWS Blacksburg, VA

July 28, 2015City of Danville, Virginia

NWS Blacksburg, VA issued this special weather statement at Jul 28, 2015, 12:09 AM EDT for City of Danville, Virginia. It was in force for 51 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: Jul 28, 2015, 12:09 AM EDT (04:09 UTC)
Expired: Jul 28, 2015, 1:00 AM EDT
In force: 51 min
Issued by: NWS Blacksburg, VA

County City of Danville, VA

The radar

The Roanoke radar (KFCX), 98 km from the middle of the area, began a volume at 04:13 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 00:00Z, 4.2 hours before the alert went out and 75 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: 579 J/kg
Mixed-layer CIN: -27 J/kg
Mixed-layer LCL: 1378 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 20 m²/s²
0-3 km storm-relative helicity: 73 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 1.7

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

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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 Jul 27, 11:57 PM EDT, 12 minutes earlier.

Area forecast discussion, Jul 27, 11:57 PM EDT, 12 minutes before

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Hazardous weather outlook, Jul 27, 3:00 PM EDT, 9 hours 9 minutes before

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In the hours before

Special weather statement, Jul 27, 10:01 PM EDT, 2 hours 8 minutes before

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Special weather statement, Jul 27, 11:01 PM EDT, 1 hour 8 minutes before

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Special weather statement, Jul 27, 11:05 PM EDT, 1 hour 4 minutes before

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Special weather statement, Jul 27, 11:55 PM EDT, 14 minutes before

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Special weather statement, Jul 28, 12:01 AM EDT, 8 minutes before

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Special weather statement, Jul 28, 12:09 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
Jul 27, 9:03 PM EDT	Special Weather Statement	RNK	Buckingham	42 min
Jul 27, 10:01 PM EDT	Special Weather Statement	RNK	Rockbridge	29 min
Jul 27, 11:01 PM EDT	Special Weather Statement	RNK	Bedford, City of Lexington	59 min
Jul 27, 11:05 PM EDT	Special Weather Statement	RNK	City of Danville	55 min
Jul 27, 11:13 PM EDT	Areal Flood Advisory	RNK	Bedford, Botetourt, Campbell, Rockbridge	4 hr
Jul 27, 11:55 PM EDT	Special Weather Statement	RNK	Campbell	65 min
Jul 28, 12:01 AM EDT	Special Weather Statement	RNK	Bedford	59 min
Jul 28, 12:25 AM EDT	Special Weather Statement	RNK	City of Roanoke	65 min
Jul 28, 1:05 AM EDT	Special Weather Statement	RNK	Halifax	40 min
Jul 28, 1:16 AM EDT	Special Weather Statement	RNK	Appomattox	59 min
Jul 28, 2:42 PM EDT	Areal Flood Advisory	RNK	Patrick	6 hr
Jul 28, 2:54 PM EDT	Areal Flood Advisory	RNK	Charlotte	6 hr
Jul 28, 3:07 PM EDT	Special Weather Statement	RNK	Charlotte	38 min
Jul 28, 3:35 PM EDT	Special Weather Statement	RNK	Pittsylvania	40 min
Jul 28, 4:23 PM EDT	Special Weather Statement	RNK	Pittsylvania	37 min
Jul 28, 4:25 PM EDT	Special Weather Statement	RNK	Halifax	65 min
Jul 28, 5:28 PM EDT	Special Weather Statement	RNK	Pulaski, City of Radford	62 min
Jul 28, 5:55 PM EDT	Areal Flood Advisory	RNK	Charlotte, Halifax	6 hr
Jul 28, 6:15 PM EDT	Special Weather Statement	RNK	Botetourt	60 min
Jul 28, 6:18 PM EDT	Areal Flood Advisory	RNK	Alleghany, Bath, Botetourt, Craig, City of Covington	6 hr
Jul 28, 6:57 PM EDT	Special Weather Statement	RNK	Floyd	63 min
Jul 28, 7:07 PM EDT	Areal Flood Advisory	RNK	Amherst, Bedford, Botetourt, Rockbridge, City of Buena Vista, City of Lexington	6 hr
Jul 28, 4:10 PM EDT	Special Weather Statement	RNK	Rockingham	65 min
Jul 28, 5:15 PM EDT	Special Weather Statement	RNK	Yadkin	60 min
Jul 28, 6:31 PM EDT	Special Weather Statement	RNK	Rockingham	59 min
Jul 28, 7:53 PM EDT	Special Weather Statement	RNK	Stokes	67 min

Nearby

Special Weather Statements in Virginia, 2015 Every special weather statement in 2015

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.