Alert archive / Virginia / Special Weather Statements in 2015

Special Weather Statement, NWS Morristown, TN

August 15, 2015Scott County, Virginia

NWS Morristown, TN issued this special weather statement at Aug 15, 2015, 6:21 PM EDT for Scott County, Virginia. It was in force for 39 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: Aug 15, 2015, 6:21 PM EDT (22:21 UTC)
Expired: Aug 15, 2015, 7:00 PM EDT
In force: 39 min
Issued by: NWS Morristown, TN

County Scott County, VA

The radar

The Knoxville radar (KMRX), 77 km from the middle of the area, began a volume at 22:25 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, 10.4 hours before the alert went out and 269 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: 152 J/kg
Mixed-layer CIN: -73 J/kg
Mixed-layer LCL: 1235 m above ground
0-6 km bulk shear: 6 kt
0-1 km storm-relative helicity: -7 m²/s²
0-3 km storm-relative helicity: 46 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 Morristown, TN wrote its last area forecast discussion before this special weather statement went out at Aug 15, 3:16 PM EDT, 3 hours 5 minutes earlier.

Area forecast discussion, Aug 15, 3:16 PM EDT, 3 hours 5 minutes before

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Hazardous weather outlook, Aug 15, 3:21 PM EDT, 3 hours before

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In the hours before

Special weather statement, Aug 15, 5:13 PM EDT, 1 hour 8 minutes before

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Special weather statement, Aug 15, 5:38 PM EDT, 43 minutes before

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Special weather statement, Aug 15, 6:16 PM EDT, 5 minutes before

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Special weather statement, Aug 15, 6:21 PM EDT, 0 minutes before

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The office that day

Everything else NWS Morristown, TN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 14, 8:36 PM EDT	Areal Flood Advisory	MRX	Johnson, Sullivan	114 min
Aug 14, 9:02 PM EDT	Flash Flood Warning	MRX	Johnson, Sullivan	118 min
Aug 15, 6:16 PM EDT	Special Weather Statement	MRX	Sullivan	44 min
Aug 14, 9:06 PM EDT	Special Weather Statement	MRX	Washington	24 min
Aug 15, 5:13 PM EDT	Special Weather Statement	MRX	Washington	47 min
Aug 15, 5:38 PM EDT	Special Weather Statement	MRX	Washington	52 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.