Alert archive / North Carolina / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 130, NWS Blacksburg, VA

July 4, 2019Surry County, North Carolina

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 4, 2019, 5:40 PM EDT for Surry County, North Carolina. It was in force for 35 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: Jul 4, 2019, 5:40 PM EDT (21:40 UTC)
Expired: Jul 4, 2019, 6:15 PM EDT
In force: 35 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Surry County, NC

The radar

The Roanoke radar (KFCX), 77 km from the middle of the area, began a volume at 21:43 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 12:00Z, 9.7 hours before the alert went out and 137 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: 194 J/kg
Mixed-layer CIN: -87 J/kg
Mixed-layer LCL: 1066 m above ground
0-6 km bulk shear: 15 kt
0-1 km storm-relative helicity: 1 m²/s²
0-3 km storm-relative helicity: 30 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

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 Jul 4, 3:20 PM EDT, 2 hours 20 minutes earlier.

Area forecast discussion, Jul 4, 3:20 PM EDT, 2 hours 20 minutes before

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Hazardous weather outlook, Jul 4, 3:16 PM EDT, 2 hours 24 minutes before

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In the hours before

Special weather statement, Jul 4, 4:46 PM EDT, 54 minutes before

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Special weather statement, Jul 4, 5:03 PM EDT, 37 minutes before

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Special weather statement, Jul 4, 5:09 PM EDT, 31 minutes before

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Special weather statement, Jul 4, 5:27 PM EDT, 13 minutes before

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Special weather statement, Jul 4, 5:30 PM EDT, 10 minutes before

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Special weather statement, Jul 4, 5:32 PM EDT, 8 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
Jul 3, 8:55 PM EDT	Special Weather Statement	RNK	Buckingham	35 min
Jul 4, 11:33 AM EDT	Special Weather Statement	RNK	Henry	42 min
Jul 4, 12:14 PM EDT	Special Weather Statement	RNK	Henry, City of Martinsville	46 min
Jul 4, 12:49 PM EDT	Special Weather Statement	RNK	Floyd	26 min
Jul 4, 1:13 PM EDT	Special Weather Statement	RNK	Franklin	32 min
Jul 4, 1:25 PM EDT	Severe Thunderstorm Warning	RNK	Bedford, Franklin, Pittsylvania	50 min
Jul 4, 1:37 PM EDT	Special Weather Statement	RNK	Pittsylvania	38 min
Jul 4, 1:49 PM EDT	Special Weather Statement	RNK	City of Roanoke, City of Salem	26 min
Jul 4, 1:51 PM EDT	Special Weather Statement	RNK	Charlotte	39 min
Jul 4, 2:14 PM EDT	Special Weather Statement	RNK	Halifax	31 min
Jul 4, 2:16 PM EDT	Areal Flood Advisory	RNK	Grayson, Smyth	89 min
Jul 4, 2:18 PM EDT	Special Weather Statement	RNK	Pittsylvania	42 min
Jul 4, 2:34 PM EDT	Special Weather Statement	RNK	City of Danville	41 min
Jul 4, 2:51 PM EDT	Special Weather Statement	RNK	Campbell	24 min
Jul 4, 3:05 PM EDT	Special Weather Statement	RNK	Halifax	40 min
Jul 4, 3:06 PM EDT	Flash Flood Warning	RNK	Halifax, Pittsylvania	116 min
Jul 4, 3:12 PM EDT	Special Weather Statement	RNK	Buckingham	63 min
Jul 4, 3:15 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	45 min
Jul 4, 3:16 PM EDT	Special Weather Statement	RNK	City of Buena Vista	14 min
Jul 4, 3:21 PM EDT	Special Weather Statement	RNK	Wythe	24 min
Jul 4, 3:22 PM EDT	Special Weather Statement	RNK	Giles	23 min
Jul 4, 3:26 PM EDT	Special Weather Statement	RNK	Appomattox	34 min
Jul 4, 3:35 PM EDT	Special Weather Statement	RNK	Amherst	25 min
Jul 4, 3:48 PM EDT	Special Weather Statement	RNK	Campbell	27 min
Jul 4, 3:50 PM EDT	Special Weather Statement	RNK	Pulaski	25 min
Jul 4, 3:51 PM EDT	Special Weather Statement	RNK	City of Radford	24 min
Jul 4, 3:58 PM EDT	Special Weather Statement	RNK	City of Lynchburg	17 min
Jul 4, 4:22 PM EDT	Areal Flood Advisory	RNK	Amherst	113 min
Jul 4, 4:31 PM EDT	Special Weather Statement	RNK	Montgomery	14 min
Jul 4, 4:34 PM EDT	Special Weather Statement	RNK	Amherst	26 min
Jul 4, 4:46 PM EDT	Special Weather Statement	RNK	Montgomery	14 min
Jul 4, 5:03 PM EDT	Special Weather Statement	RNK	City of Buena Vista	27 min
Jul 4, 5:09 PM EDT	Special Weather Statement	RNK	Bath	21 min
Jul 4, 5:32 PM EDT	Special Weather Statement	RNK	Bath	13 min
Jul 4, 5:42 PM EDT	Special Weather Statement	RNK	Bland	18 min
Jul 4, 5:43 PM EDT	Special Weather Statement	RNK	Bland	17 min
Jul 4, 5:47 PM EDT	Special Weather Statement	RNK	Bath	13 min
Jul 4, 5:52 PM EDT	Areal Flood Advisory	RNK	Bath	113 min
Jul 4, 5:54 PM EDT	Special Weather Statement	RNK	Floyd	21 min
Jul 4, 6:03 PM EDT	Special Weather Statement	RNK	Bland	27 min
Jul 4, 6:05 PM EDT	Special Weather Statement	RNK	Alleghany	25 min
Jul 4, 6:34 PM EDT	Special Weather Statement	RNK	Bath	26 min
Jul 4, 7:01 PM EDT	Special Weather Statement	RNK	Patrick	29 min
Jul 4, 7:27 PM EDT	Special Weather Statement	RNK	City of Salem	18 min
Jul 4, 7:59 PM EDT	Special Weather Statement	RNK	Franklin	16 min
Jul 4, 1:04 AM EDT	Special Weather Statement	RNK	Wilkes	56 min
Jul 4, 1:29 AM EDT	Areal Flood Advisory	RNK	Wilkes	3 hr
Jul 4, 10:50 AM EDT	Special Weather Statement	RNK	Stokes	25 min
Jul 4, 1:56 PM EDT	Special Weather Statement	RNK	Caswell	34 min
Jul 4, 2:19 PM EDT	Special Weather Statement	RNK	Surry	26 min
Jul 4, 2:54 PM EDT	Special Weather Statement	RNK	Watauga	21 min
Jul 4, 3:30 PM EDT	Special Weather Statement	RNK	Caswell	15 min
Jul 4, 4:13 PM EDT	Special Weather Statement	RNK	Surry	32 min
Jul 4, 5:27 PM EDT	Special Weather Statement	RNK	Alexander	18 min
Jul 4, 5:30 PM EDT	Special Weather Statement	RNK	Wilkes	15 min
Jul 4, 5:53 PM EDT	Special Weather Statement	RNK	Wilkes	22 min
Jul 4, 6:16 PM EDT	Special Weather Statement	RNK	Surry, Yadkin	14 min
Jul 4, 1:33 PM EDT	Special Weather Statement	RNK	Mercer	27 min
Jul 4, 2:28 PM EDT	Special Weather Statement	RNK	Summers	32 min
Jul 4, 3:03 PM EDT	Special Weather Statement	RNK	Summers	27 min
Jul 4, 6:59 PM EDT	Special Weather Statement	RNK	Mercer	16 min

Nearby

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.