Alert archive / Virginia / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 220, NWS Blacksburg, VA

July 16, 2022Franklin County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 16, 2022, 7:12 PM EDT for Franklin County, Virginia. It was in force for 18 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 16, 2022, 7:12 PM EDT (23:12 UTC)
Expired: Jul 16, 2022, 7:30 PM EDT
In force: 18 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Franklin County, VA

The radar

The Roanoke radar (KFCX), 35 km from the middle of the area, began a volume at 23:12 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, 11.2 hours before the alert went out and 41 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: 410 J/kg
Mixed-layer CIN: -39 J/kg
Mixed-layer LCL: 896 m above ground
0-6 km bulk shear: 26 kt
0-1 km storm-relative helicity: 72 m²/s²
0-3 km storm-relative helicity: 74 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.6

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 16, 7:04 PM EDT, 8 minutes earlier.

Area forecast discussion, Jul 16, 7:04 PM EDT, 8 minutes before

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Hazardous weather outlook, Jul 16, 2:18 PM EDT, 4 hours 54 minutes before

Hazardous Weather Outlook
National Weather Service Blacksburg VA
218 PM EDT Sat Jul 16 2022

VAZ035-045>047-058-059-171830-
Amherst-Campbell-Appomattox-Buckingham-Halifax-Charlotte-
218 PM EDT Sat Jul 16 2022

This Hazardous Weather Outlook is for central Virginia and south
central Virginia.

.DAY ONE...This afternoon and tonight.

Strong to severe thunderstorms are possible through early evening.
The primary threat is damaging wind.

Heavy rainfall rates may produce localized flooding as well.

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

The daily threat for afternoon and evening thunderstorms continues
Sunday and Monday. Any of the stronger storms may produce heavy
rainfall rates that may result in localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

NCZ001>006-018>020-VAZ007-009>020-022>024-032>034-043-044-WVZ042>044-
507-508-171830-
Ashe-Alleghany NC-Surry-Stokes-Rockingham-Caswell-Watauga-Wilkes-
Yadkin-Tazewell-Smyth-Bland-Giles-Wythe-Pulaski-Montgomery-Grayson-
Carroll-Floyd-Craig-Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-
Patrick-Franklin-Bedford-Henry-Pittsylvania-Mercer-Summers-Monroe-
Eastern Greenbrier-Western Greenbrier-
218 PM EDT Sat Jul 16 2022

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...This afternoon and tonight.

Slow moving storms combined with heavy rainfall rates may produce
localized flooding this afternoon and evening.

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

The daily threat for afternoon and evening thunderstorms continues
on Monday. Any of the stronger storms may produce heavy rainfall
rates that may result in localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Jul 16, 6:08 PM EDT, 1 hour 4 minutes before

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Local storm report, Jul 16, 6:10 PM EDT, 1 hour 2 minutes before

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Local storm report, Jul 16, 6:12 PM EDT, 1 hour before

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Local storm report, Jul 16, 6:15 PM EDT, 57 minutes before

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Special weather statement, Jul 16, 6:21 PM EDT, 51 minutes before

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Special weather statement, Jul 16, 6:56 PM EDT, 16 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 16, 1:12 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox	33 min
Jul 16, 1:17 PM EDT	Special Weather Statement	RNK	Campbell	28 min
Jul 16, 1:20 PM EDT	Special Weather Statement	RNK	Halifax	25 min
Jul 16, 1:32 PM EDT	Severe Thunderstorm Warning	RNK	Campbell, Halifax, Pittsylvania	43 min
Jul 16, 1:37 PM EDT	Severe Thunderstorm Warning	RNK	Buckingham	38 min
Jul 16, 1:56 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte	34 min
Jul 16, 2:09 PM EDT	Flash Flood Warning	RNK	Appomattox	3 hr
Jul 16, 2:14 PM EDT	Areal Flood Advisory	RNK	Campbell, Pittsylvania	3 hr
Jul 16, 2:42 PM EDT	Special Weather Statement	RNK	Appomattox, Charlotte	33 min
Jul 16, 2:52 PM EDT	Special Weather Statement	RNK	City of Danville	38 min
Jul 16, 3:00 PM EDT	Special Weather Statement	RNK	Bedford	30 min
Jul 16, 3:06 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania	24 min
Jul 16, 3:07 PM EDT	Special Weather Statement	RNK	Halifax	53 min
Jul 16, 3:13 PM EDT	Severe Thunderstorm Warning	RNK	Halifax	47 min
Jul 16, 3:19 PM EDT	Severe Thunderstorm Warning	RNK	Pittsylvania, City of Danville	27 min
Jul 16, 3:50 PM EDT	Special Weather Statement	RNK	City of Danville	25 min
Jul 16, 4:01 PM EDT	Special Weather Statement	RNK	Halifax	29 min
Jul 16, 4:05 PM EDT	Severe Thunderstorm Warning	RNK	Charlotte, Halifax	29 min
Jul 16, 4:18 PM EDT	Areal Flood Advisory	RNK	Pittsylvania, City of Danville	3 hr
Jul 16, 4:26 PM EDT	Special Weather Statement	RNK	Halifax	34 min
Jul 16, 4:44 PM EDT	Areal Flood Advisory	RNK	Charlotte, Halifax	3 hr
Jul 16, 5:46 PM EDT	Special Weather Statement	RNK	Patrick	29 min
Jul 16, 6:21 PM EDT	Special Weather Statement	RNK	City of Martinsville	24 min
Jul 16, 6:56 PM EDT	Special Weather Statement	RNK	Franklin	34 min
Jul 16, 3:26 PM EDT	Special Weather Statement	RNK	Caswell	34 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2022 Every severe thunderstorm warning in 2022

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.