Alert archive / Virginia / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 59, NWS Blacksburg, VA

May 25, 2019Pittsylvania County, City of Danville, Virginia; Caswell County, North Carolina

NWS Blacksburg, VA issued this severe thunderstorm warning at May 25, 2019, 9:32 PM EDT for Pittsylvania County, City of Danville, Virginia; Caswell County, North Carolina. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: May 25, 2019, 9:32 PM EDT (01:32 UTC)
Expired: May 25, 2019, 10:13 PM EDT
In force: 41 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Caswell County, NC, City of Danville, VA, Pittsylvania County, VA

The radar

The Roanoke radar (KFCX), 93 km from the middle of the area, began a volume at 01:32 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, 1.5 hours before the alert went out and 75 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: 1054 J/kg
Mixed-layer CIN: -10 J/kg
Mixed-layer LCL: 1817 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 42 m²/s²
0-3 km storm-relative helicity: 146 m²/s²
Significant tornado parameter: 0.1
Supercell composite: 4.2

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning 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 severe thunderstorm warning went out at May 25, 9:24 PM EDT, 8 minutes earlier.

Area forecast discussion, May 25, 9:24 PM EDT, 8 minutes before

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Hazardous weather outlook, May 25, 9:34 AM EDT, 11 hours 58 minutes before

Hazardous Weather Outlook
National Weather Service Blacksburg VA
934 AM EDT Sat May 25 2019

NCZ001>006-018>020-VAZ007-009>017-022-032-033-043-044-058-059-WVZ042-
043-261345-
Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes-
Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Grayson-
Carroll-Floyd-Roanoke-Patrick-Franklin-Henry-Pittsylvania-Halifax-
Charlotte-Mercer-Summers-
934 AM EDT Sat May 25 2019

This Hazardous Weather Outlook is for north central North Carolina,
northwest North Carolina, 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...Sunday through Friday.

The probability for widespread hazardous weather is low.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

VAZ018>020-023-024-034-035-045>047-WVZ044-507-508-261345-
Craig-Alleghany VA-Bath-Botetourt-Rockbridge-Bedford-Amherst-
Campbell-Appomattox-Buckingham-Monroe-Eastern Greenbrier-
Western Greenbrier-
934 AM EDT Sat May 25 2019

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.

Isolated to scattered thunderstorms will be possible this afternoon
and evening along and near the Interstate 64 and U.S. 60 corridor. A
few of these storms could become severe. The main threat will be
damaging wind gusts.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

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, May 25, 8:18 PM EDT, 1 hour 14 minutes before

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Special weather statement, May 25, 8:24 PM EDT, 1 hour 8 minutes before

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Special weather statement, May 25, 8:57 PM EDT, 35 minutes before

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Local storm report, May 25, 9:05 PM EDT, 27 minutes before

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Special weather statement, May 25, 9:13 PM EDT, 19 minutes before

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Special weather statement, May 25, 9:20 PM EDT, 12 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 25, 8:09 PM EDT	Severe Thunderstorm Warning	RNK	Henry, Pittsylvania, City of Martinsville	51 min
May 25, 8:18 PM EDT	Special Weather Statement	RNK	Giles	42 min
May 25, 8:24 PM EDT	Special Weather Statement	RNK	Buckingham	66 min
May 25, 8:37 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	38 min
May 25, 8:57 PM EDT	Special Weather Statement	RNK	Craig, Floyd, Giles, Montgomery, Pulaski, City of Radford	48 min
May 25, 9:20 PM EDT	Special Weather Statement	RNK	Halifax, City of Danville	55 min
May 25, 9:43 PM EDT	Special Weather Statement	RNK	Botetourt, Montgomery, Roanoke, City of Roanoke, City of Salem	62 min
May 25, 10:44 PM EDT	Special Weather Statement	RNK	Bedford	46 min
May 25, 11:26 PM EDT	Special Weather Statement	RNK	Pittsylvania	34 min
May 25, 11:28 PM EDT	Special Weather Statement	RNK	Campbell	32 min
May 25, 11:56 PM EDT	Special Weather Statement	RNK	Charlotte	49 min
May 25, 9:13 PM EDT	Special Weather Statement	RNK	Rockingham, Stokes	62 min
May 25, 10:22 PM EDT	Special Weather Statement	RNK	Caswell	53 min
May 25, 11:12 PM EDT	Special Weather Statement	RNK	Caswell	18 min
May 26, 1:26 PM EDT	Special Weather Statement	RNK	Greenbrier	34 min
May 26, 1:59 PM EDT	Special Weather Statement	RNK	Greenbrier	31 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2019 Severe Thunderstorm Warnings in North Carolina, 2019 Every severe thunderstorm warning 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.