Alert archive / Virginia / Special Weather Statements in 2012

Special Weather Statement, NWS Blacksburg, VA

July 14, 2012Craig County, Virginia

NWS Blacksburg, VA issued this special weather statement at Jul 14, 2012, 5:57 PM EDT for Craig County, Virginia. It was in force for 63 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 14, 2012, 5:57 PM EDT (21:57 UTC)
Expired: Jul 14, 2012, 7:00 PM EDT
In force: 63 min
Issued by: NWS Blacksburg, VA

County Craig County, VA

The radar

The Roanoke radar (KFCX), 50 km from the middle of the area, began a volume at 22:00 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, 10.0 hours before the alert went out and 76 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: 381 J/kg
Mixed-layer CIN: -31 J/kg
Mixed-layer LCL: 561 m above ground
0-6 km bulk shear: 16 kt
0-1 km storm-relative helicity: 76 m²/s²
0-3 km storm-relative helicity: 75 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 14, 4:01 PM EDT, 1 hour 56 minutes earlier.

Area forecast discussion, Jul 14, 4:01 PM EDT, 1 hour 56 minutes before

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Hazardous weather outlook, Jul 14, 12:25 PM EDT, 5 hours 32 minutes before

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In the hours before

Special weather statement, Jul 14, 2:50 PM EDT, 3 hours 7 minutes before

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Special weather statement, Jul 14, 3:23 PM EDT, 2 hours 34 minutes before

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Special weather statement, Jul 14, 3:45 PM EDT, 2 hours 12 minutes before

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Special weather statement, Jul 14, 4:26 PM EDT, 1 hour 31 minutes before

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Special weather statement, Jul 14, 5:25 PM EDT, 32 minutes before

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Special weather statement, Jul 14, 5:57 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
Jul 13, 8:07 PM EDT	Special Weather Statement	RNK	Halifax	53 min
Jul 13, 8:59 PM EDT	Special Weather Statement	RNK	Halifax	61 min
Jul 13, 9:25 PM EDT	Special Weather Statement	RNK	Pittsylvania	65 min
Jul 13, 9:34 PM EDT	Special Weather Statement	RNK	Charlotte	56 min
Jul 14, 11:52 AM EDT	Flash Flood Watch	RNK	Amherst, Appomattox, Bedford, Botetourt, Buckingham, Campbell and 19 more	9 hr
Jul 14, 2:23 PM EDT	Special Weather Statement	RNK	Pittsylvania	37 min
Jul 14, 2:44 PM EDT	Special Weather Statement	RNK	Henry, City of Martinsville	31 min
Jul 14, 2:50 PM EDT	Special Weather Statement	RNK	Halifax	40 min
Jul 14, 3:02 PM EDT	Areal Flood Advisory	RNK	Grayson, Smyth	3 hr
Jul 14, 3:23 PM EDT	Special Weather Statement	RNK	Botetourt	52 min
Jul 14, 3:28 PM EDT	Severe Thunderstorm Warning	RNK	Alleghany, Botetourt, Craig, Rockbridge	50 min
Jul 14, 3:45 PM EDT	Special Weather Statement	RNK	Craig	30 min
Jul 14, 4:26 PM EDT	Special Weather Statement	RNK	Bath	64 min
Jul 14, 5:25 PM EDT	Special Weather Statement	RNK	Bath	65 min
Jul 14, 2:17 PM EDT	Special Weather Statement	RNK	Caswell	28 min

Nearby

Special Weather Statements in Virginia, 2012 Every special weather statement in 2012

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.