Alert archive / Virginia / Special Weather Statements in 2017

Special Weather Statement, NWS Blacksburg, VA

April 6, 2017Charlotte County, Halifax County, Virginia; Caswell County, North Carolina

NWS Blacksburg, VA issued this special weather statement at Apr 6, 2017, 7:29 AM EDT for Charlotte County, Halifax County, Virginia; Caswell County, North Carolina. It was in force for 61 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: Apr 6, 2017, 7:29 AM EDT (11:29 UTC)
Expired: Apr 6, 2017, 8:30 AM EDT
In force: 61 min
Issued by: NWS Blacksburg, VA

Counties Caswell County, NC, Charlotte County, VA, Halifax County, VA

The radar

The Roanoke radar (KFCX), 134 km from the middle of the area, began a volume at 11:33 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

Roanoke, VA (KRNK), launched 00:00Z, 11.5 hours before the alert went out and 73 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1255 m above ground
0-6 km bulk shear: 72 kt
0-1 km storm-relative helicity: 311 m²/s²
0-3 km storm-relative helicity: 305 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 Apr 6, 6:44 AM EDT, 45 minutes earlier.

Area forecast discussion, Apr 6, 6:44 AM EDT, 45 minutes before

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Hazardous weather outlook, Apr 6, 7:10 AM EDT, 19 minutes before

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In the hours before

Special weather statement, Apr 6, 5:49 AM EDT, 1 hour 40 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
549 AM EDT THU APR 6 2017

VAZ034-044>046-061045-
Campbell-Bedford-Pittsylvania-Appomattox-
549 AM EDT THU APR 6 2017

...A STRONG THUNDERSTORM WILL AFFECT SOUTHWESTERN
APPOMATTOX...CAMPBELL...PITTSYLVANIA...AND SOUTHEASTERN BEDFORD
COUNTIES AND THE CITY OF LYNCHBURG THROUGH 645 AM EDT...

At 548 AM EDT, a strong thunderstorm was located near Climax, moving
northeast at 70 mph.

Winds in excess of 40 mph and dime size hail are possible with this
storm...along with brief heavy rainfall.

Locations impacted include...
Lynchburg...
Danville...
Altavista...
Hurt...
and Chatham.

This includes The following Locations Liberty University and
Lynchburg Airport.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

LAT...LON 3704 7903 3706 7909 3694 7912 3663 7940
      3683 7965 3701 7960 3750 7925 3743 7915
      3740 7912 3741 7911 3739 7906 3726 7883
TIME...MOT...LOC 0948Z 213DEG 61KT 3691 7954

RAB

Special weather statement, Apr 6, 6:27 AM EDT, 1 hour 2 minutes before

Special Weather Statement
National Weather Service BLACKSBURG VA
627 AM EDT THU APR 6 2017

NCZ006-VAZ044-058-059-061130-
Caswell-Halifax-Pittsylvania-Charlotte-
627 AM EDT THU APR 6 2017

...A STRONG THUNDERSTORM WILL AFFECT NORTHEASTERN CASWELL...CENTRAL
CHARLOTTE...SOUTHEASTERN PITTSYLVANIA AND HALIFAX COUNTIES THROUGH
730 AM EDT...

At 626 AM EDT, a strong thunderstorm was located over Milton, moving
northeast at 55 mph.

Winds in excess of 30 mph are possible with this storm ALONG WITH
FREQUENT LIGHTNING AND BRIEF HEAVY RAINFALL.

Locations impacted include...
South Boston...
Halifax...
Clover...
Turbeville...
and Ingram.

Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.

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 3654 7892 3654 7914 3633 7915 3647 7935
      3709 7913 3707 7911 3705 7906 3703 7900
      3705 7898 3690 7863
TIME...MOT...LOC 1026Z 213DEG 49KT 3654 7923

RAB

Local storm report, Apr 6, 6:42 AM EDT, 47 minutes before

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Special weather statement, Apr 6, 6:52 AM EDT, 37 minutes before

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Local storm report, Apr 6, 7:07 AM EDT, 22 minutes before

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Special weather statement, Apr 6, 7:29 AM 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
Apr 5, 11:14 PM EDT	Special Weather Statement	RNK	Tazewell	31 min
Apr 5, 11:57 PM EDT	Special Weather Statement	RNK	Tazewell	33 min
Apr 6, 12:17 AM EDT	Special Weather Statement	RNK	Bland	58 min
Apr 6, 1:22 AM EDT	Special Weather Statement	RNK	Giles	53 min
Apr 6, 2:17 AM EDT	Special Weather Statement	RNK	Alleghany, Bath, City of Covington	58 min
Apr 6, 3:26 AM EDT	Winter Weather Advisory	RNK	Grayson	35 hr
Apr 6, 5:31 AM EDT	Severe Thunderstorm Warning	RNK	Henry, Pittsylvania, City of Danville, City of Martinsville	59 min
Apr 6, 5:49 AM EDT	Special Weather Statement	RNK	Campbell, Pittsylvania, City of Lynchburg	56 min
Apr 6, 6:27 AM EDT	Special Weather Statement	RNK	Halifax	63 min
Apr 6, 6:31 AM EDT	Severe Thunderstorm Warning	RNK	Halifax	23 min
Apr 6, 6:52 AM EDT	Special Weather Statement	RNK	City of Danville	38 min
Apr 6, 7:33 AM EDT	Special Weather Statement	RNK	Carroll, Craig, Montgomery, Pulaski, Roanoke, City of Radford	57 min
Apr 6, 8:24 AM EDT	Special Weather Statement	RNK	Appomattox, Buckingham, Charlotte	51 min
Apr 6, 8:27 AM EDT	Special Weather Statement	RNK	Alleghany, Bath, Craig, City of Covington	48 min
Apr 6, 9:05 AM EDT	Special Weather Statement	RNK	Floyd, Patrick	55 min
Apr 6, 9:11 AM EDT	Special Weather Statement	RNK	Botetourt	34 min
Apr 6, 9:20 AM EDT	Special Weather Statement	RNK	Bath	25 min
Apr 6, 10:04 AM EDT	Special Weather Statement	RNK	Bedford	26 min
Apr 6, 10:07 AM EDT	Special Weather Statement	RNK	Halifax, City of Danville	38 min
Apr 6, 10:19 AM EDT	Special Weather Statement	RNK	Franklin	26 min
Apr 6, 10:33 AM EDT	Special Weather Statement	RNK	Appomattox, Campbell	27 min
Apr 6, 10:37 AM EDT	Special Weather Statement	RNK	Amherst	23 min
Apr 6, 10:54 AM EDT	Special Weather Statement	RNK	Appomattox, Buckingham, Charlotte, Halifax	51 min
Apr 6, 3:54 PM EDT	Freeze Watch	RNK	Amherst, Appomattox, Bedford, Botetourt, Campbell, Franklin and 10 more	23 hr
Apr 6, 2:28 AM EDT	Special Weather Statement	RNK	Rockingham	62 min
Apr 6, 5:08 AM EDT	Special Weather Statement	RNK	Stokes	67 min
Apr 6, 5:59 AM EDT	Severe Thunderstorm Warning	RNK	Caswell	42 min
Apr 6, 12:52 AM EDT	Special Weather Statement	RNK	Monroe, Summers	53 min

Nearby

Special Weather Statements in Virginia, 2017 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.