Alert archive / North Carolina / Special Weather Statements in 2018

Special Weather Statement, NWS Blacksburg, VA

August 7, 2018Stokes County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Aug 7, 2018, 3:03 PM EDT for Stokes County, North Carolina. It was in force for 42 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 7, 2018, 3:03 PM EDT (19:03 UTC)
Expired: Aug 7, 2018, 3:45 PM EDT
In force: 42 min
Issued by: NWS Blacksburg, VA

County Stokes County, NC

The radar

The Roanoke radar (KFCX), 57 km from the middle of the area, began a volume at 19:07 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, 7.1 hours before the alert went out and 54 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: 87 J/kg
Mixed-layer CIN: -144 J/kg
Mixed-layer LCL: 1363 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 9 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 7, 1:50 PM EDT, 1 hour 13 minutes earlier.

Area forecast discussion, Aug 7, 1:50 PM EDT, 1 hour 13 minutes before

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Hazardous weather outlook, Aug 7, 4:10 AM EDT, 10 hours 53 minutes before

Hazardous Weather Outlook
National Weather Service Blacksburg VA
410 AM EDT Tue Aug 7 2018

VAZ007-010>014-016>020-022>024-032>035-043>047-058-059-WVZ042>044-
507-508-080900-
Tazewell-Bland-Giles-Wythe-Pulaski-Montgomery-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-
410 AM EDT Tue Aug 7 2018

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

.DAY ONE...Today and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Some storms Wednesday afternoon and evening may produce locally
damaging wind, especially north of Route 460.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ001>006-018>020-VAZ009-015-080900-
Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes-
Yadkin-Smyth-Grayson-
410 AM EDT Tue Aug 7 2018

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

.DAY ONE...Today and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

There is a low probability for widespread hazardous weather.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, Aug 7, 12:10 PM EDT, 2 hours 53 minutes before

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Special weather statement, Aug 7, 12:59 PM EDT, 2 hours 4 minutes before

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Special weather statement, Aug 7, 1:35 PM EDT, 1 hour 28 minutes before

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Special weather statement, Aug 7, 3:03 PM EDT, 0 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
303 PM EDT TUE AUG 7 2018

NCZ004-005-VAZ032-071945-
Stokes-Rockingham-Patrick-
303 PM EDT TUE AUG 7 2018

...A STRONG THUNDERSTORM WILL AFFECT
NORTHEASTERN STOKES...NORTHWESTERN ROCKINGHAM AND SOUTHEASTERN
PATRICK COUNTIES...

Until 345 PM EDT.

At 302 PM EDT, a strong thunderstorm was located near Collinstown,
moving southeast at 10 mph.

Winds in excess of 40 mph are possible with this storm, along with a
period of torrential rainfall.

Locations impacted include...
Danbury...
Sandy Ridge...
Dillard...
Collinstown...
and Prestonville.

Torrential rainfall is also occurring with this storm, and may cause
localized flooding. Do not drive your vehicle through flooded
roadways.

This storm may intensify, so be certain to monitor local radio
stations and available television stations for additional information
and possible warnings from the National Weather Service.

LAT...LON 3653 8036 3663 8023 3656 8005 3654 8005
      3654 8002 3651 7994 3633 8013
TIME...MOT...LOC 1902Z 306DEG 10KT 3654 8023

Loconto

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Aug 7, 12:10 PM EDT	Special Weather Statement	RNK	Pulaski	35 min
Aug 7, 12:59 PM EDT	Special Weather Statement	RNK	Bath	46 min
Aug 7, 1:35 PM EDT	Special Weather Statement	RNK	Bland, Tazewell	55 min
Aug 7, 3:15 PM EDT	Special Weather Statement	RNK	Pulaski	45 min
Aug 7, 3:25 PM EDT	Special Weather Statement	RNK	City of Roanoke, City of Salem	50 min
Aug 7, 3:30 PM EDT	Special Weather Statement	RNK	Montgomery	45 min
Aug 7, 3:56 PM EDT	Special Weather Statement	RNK	Floyd, Montgomery, City of Radford	49 min
Aug 7, 4:12 PM EDT	Severe Thunderstorm Warning	RNK	Franklin, Montgomery, Roanoke, City of Roanoke, City of Salem	63 min
Aug 7, 4:29 PM EDT	Special Weather Statement	RNK	City of Lynchburg	46 min
Aug 7, 4:47 PM EDT	Areal Flood Advisory	RNK	Amherst, Bedford, Campbell, City of Lynchburg	72 min
Aug 7, 4:56 PM EDT	Special Weather Statement	RNK	Henry, Patrick	49 min
Aug 7, 5:05 PM EDT	Special Weather Statement	RNK	Franklin, Pittsylvania, City of Martinsville	40 min
Aug 7, 5:25 PM EDT	Special Weather Statement	RNK	Campbell	50 min
Aug 7, 5:32 PM EDT	Special Weather Statement	RNK	Buckingham	58 min
Aug 7, 5:57 PM EDT	Special Weather Statement	RNK	Henry, Pittsylvania, City of Danville, City of Martinsville	63 min
Aug 7, 6:18 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania	57 min
Aug 7, 6:44 PM EDT	Special Weather Statement	RNK	Campbell	61 min
Aug 7, 6:51 PM EDT	Severe Thunderstorm Warning	RNK	Campbell, Charlotte, Halifax, Pittsylvania	34 min
Aug 7, 7:11 PM EDT	Special Weather Statement	RNK	Charlotte	49 min
Aug 7, 3:48 PM EDT	Special Weather Statement	RNK	Stokes	57 min
Aug 7, 4:49 PM EDT	Special Weather Statement	RNK	Yadkin	56 min
Aug 7, 4:52 PM EDT	Severe Thunderstorm Warning	RNK	Yadkin	53 min
Aug 7, 6:59 PM EDT	Special Weather Statement	RNK	Alleghany	46 min
Aug 7, 7:54 PM EDT	Special Weather Statement	RNK	Surry	51 min

Nearby

Special Weather Statements in North Carolina, 2018 Every special weather statement in 2018

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.