Alert archive / North Carolina / Special Weather Statements in 2017

Special Weather Statement, NWS Blacksburg, VA

May 22, 2017Wilkes County, North Carolina

NWS Blacksburg, VA issued this special weather statement at May 22, 2017, 8:13 PM EDT for Wilkes County, North Carolina. It was in force for 32 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: May 22, 2017, 8:13 PM EDT (00:13 UTC)
Expired: May 22, 2017, 8:45 PM EDT
In force: 32 min
Issued by: NWS Blacksburg, VA

County Wilkes County, NC

The radar

The Roanoke radar (KFCX), 100 km from the middle of the area, began a volume at 00:15 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, 0.2 hours before the alert went out and 102 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: 163 J/kg
Mixed-layer CIN: -13 J/kg
Mixed-layer LCL: 1271 m above ground
0-6 km bulk shear: 22 kt
0-1 km storm-relative helicity: 17 m²/s²
0-3 km storm-relative helicity: 41 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 May 22, 7:44 PM EDT, 29 minutes earlier.

Area forecast discussion, May 22, 7:44 PM EDT, 29 minutes before

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Hazardous weather outlook, May 22, 3:58 AM EDT, 16 hours 15 minutes before

Hazardous Weather Outlook
National Weather Service Blacksburg VA
358 AM EDT Mon May 22 2017

VAZ007-009>014-018>020-022>024-035-WVZ042>044-507-508-230800-
Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Craig-
Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-Amherst-Mercer-
Summers-Monroe-Eastern Greenbrier-Western Greenbrier-
358 AM EDT Mon May 22 2017

This Hazardous Weather Outlook is for 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.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ001>006-018>020-VAZ015>017-032>034-043>047-058-059-230800-
Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes-
Yadkin-Grayson-Carroll-Floyd-Patrick-Franklin-Bedford-Henry-
Pittsylvania-Campbell-Appomattox-Buckingham-Halifax-Charlotte-
358 AM EDT Mon May 22 2017

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

.DAY ONE...Today and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Periods of heavy rain may cause flooding on Tuesday and Wednesday,
with the potential for river flooding extending through later in the
week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Special weather statement, May 22, 7:18 PM EDT, 55 minutes before

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Special weather statement, May 22, 7:45 PM EDT, 28 minutes before

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Special weather statement, May 22, 8:13 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
May 23, 1:20 AM EDT	Areal Flood Advisory	RNK	Halifax	3 hr
May 23, 3:22 AM EDT	Flood Watch	RNK	Bland, Carroll, Grayson, Halifax, Henry, Patrick and 7 more	23 hr
May 23, 7:12 AM EDT	Areal Flood Advisory	RNK	Halifax, Pittsylvania	3 hr
May 23, 7:41 AM EDT	River Flood Warning	RNK	Halifax	4 days
May 23, 10:09 AM EDT	River Flood Warning	RNK	Pittsylvania, City of Danville	48 hr
May 23, 10:09 AM EDT	River Flood Warning	RNK	Halifax	3 days
May 23, 3:29 PM EDT	Areal Flood Advisory	RNK	Halifax, Pittsylvania, City of Danville	4 hr
May 23, 3:33 PM EDT	Areal Flood Advisory	RNK	Charlotte, Halifax	5 hr
May 22, 8:44 PM EDT	Special Weather Statement	RNK	Wilkes	31 min
May 22, 11:50 PM EDT	Areal Flood Advisory	RNK	Yadkin	3 hr
May 23, 2:24 AM EDT	Areal Flood Advisory	RNK	Wilkes	4 hr

Nearby

Special Weather Statements in North Carolina, 2017 Every special weather statement in 2017

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.