Alert archive / Virginia / Special Weather Statements in 2019

Special Weather Statement, NWS Blacksburg, VA

August 5, 2019Patrick County, Virginia

NWS Blacksburg, VA issued this special weather statement at Aug 5, 2019, 5:53 PM EDT for Patrick County, Virginia. It was in force for 52 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 5, 2019, 5:53 PM EDT (21:53 UTC)
Expired: Aug 5, 2019, 6:45 PM EDT
In force: 52 min
Issued by: NWS Blacksburg, VA

County Patrick County, VA

The radar

The Roanoke radar (KFCX), 35 km from the middle of the area, began a volume at 21:53 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, 9.9 hours before the alert went out and 82 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: 161 J/kg
Mixed-layer CIN: -108 J/kg
Mixed-layer LCL: 1199 m above ground
0-6 km bulk shear: 17 kt
0-1 km storm-relative helicity: 3 m²/s²
0-3 km storm-relative helicity: -1 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 Aug 5, 4:07 PM EDT, 1 hour 46 minutes earlier.

Area forecast discussion, Aug 5, 4:07 PM EDT, 1 hour 46 minutes before

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Hazardous weather outlook, Aug 5, 5:46 AM EDT, 12 hours 7 minutes before

Hazardous Weather Outlook
National Weather Service Blacksburg VA
546 AM EDT Mon Aug 5 2019

NCZ001>006-018>020-VAZ007-009>020-022>024-032>035-043>047-058-059-
WVZ042>044-507-508-061100-
Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes-
Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Grayson-
Carroll-Floyd-Craig-Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-
Patrick-Franklin-Bedford-Amherst-Henry-Pittsylvania-Campbell-
Appomattox-Buckingham-Halifax-Charlotte-Mercer-Summers-Monroe-
Eastern Greenbrier-Western Greenbrier-
546 AM EDT Mon Aug 5 2019

This Hazardous Weather Outlook is for north central North Carolina,
northwest North Carolina, central Virginia, south central Virginia,
southwest Virginia, west central Virginia and southeast West
Virginia.

.DAY ONE...Today and tonight.

The probability for widespread hazardous weather is low.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.
Thunderstorms are expected Wednesday afternoon and evening. A few
storms could become strong to locally severe producing damaging wind
gusts and hail. Locally heavy rain will also accompany the stronger
storms. Otherwise, the probability for widespread hazardous weather
is low during this period.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

RAB

In the hours before

Special weather statement, Aug 5, 2:05 PM EDT, 3 hours 48 minutes before

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Special weather statement, Aug 5, 2:33 PM EDT, 3 hours 20 minutes before

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Special weather statement, Aug 5, 3:09 PM EDT, 2 hours 44 minutes before

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Special weather statement, Aug 5, 4:17 PM EDT, 1 hour 36 minutes before

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Local storm report, Aug 5, 5:52 PM EDT, 1 minute before

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Special weather statement, Aug 5, 5:53 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
Aug 5, 3:09 PM EDT	Special Weather Statement	RNK	Craig	36 min
Aug 5, 4:17 PM EDT	Special Weather Statement	RNK	City of Roanoke	43 min
Aug 5, 6:10 PM EDT	Special Weather Statement	RNK	Bedford	35 min
Aug 5, 6:59 PM EDT	Special Weather Statement	RNK	Bath	46 min
Aug 5, 7:59 PM EDT	Special Weather Statement	RNK	Charlotte	31 min
Aug 5, 2:05 PM EDT	Special Weather Statement	RNK	Ashe	40 min
Aug 5, 2:33 PM EDT	Special Weather Statement	RNK	Alleghany	42 min

Nearby

Special Weather Statements in Virginia, 2019 Every special weather statement in 2019

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.