Alert archive / Virginia / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 121, NWS Blacksburg, VA

July 14, 20236 counties in Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jul 14, 2023, 4:42 PM EDT for 6 counties in Virginia. It was in force for 48 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 14, 2023, 4:42 PM EDT (20:42 UTC)
Expired: Jul 14, 2023, 5:30 PM EDT
In force: 48 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

Counties Bedford County, VA, Botetourt County, VA, City of Roanoke, VA, City of Salem, VA, Franklin County, VA, Roanoke County, VA

The radar

The Roanoke radar (KFCX), 45 km from the middle of the area, began a volume at 20:45 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

Washington/Dulle, VA (KIAD), launched 12:00Z, 8.7 hours before the alert went out and 286 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: 1 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1055 m above ground
0-6 km bulk shear: 28 kt
0-1 km storm-relative helicity: 30 m²/s²
0-3 km storm-relative helicity: 93 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 14, 2:52 PM EDT, 1 hour 50 minutes earlier.

Area forecast discussion, Jul 14, 2:52 PM EDT, 1 hour 50 minutes before

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Hazardous weather outlook, Jul 14, 2:27 PM EDT, 2 hours 15 minutes before

Hazardous Weather Outlook
National Weather Service Blacksburg VA
227 PM EDT Fri Jul 14 2023

NCZ002>006-019-020-VAZ016-017-032>035-043>047-058-059-151830-
Alleghany NC-Surry-Stokes-Rockingham-Caswell-Wilkes-Yadkin-Carroll-
Floyd-Patrick-Franklin-Bedford-Amherst-Henry-Pittsylvania-Campbell-
Appomattox-Buckingham-Halifax-Charlotte-
227 PM EDT Fri Jul 14 2023

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...This afternoon and tonight.

Scattered thunderstorms this afternoon into this evening will bring
heavy rainfall which could lead to isolated instances of flooding.
Additionally, a few storms could become severe with damaging winds
the main threat.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Scattered to numerous storms can be expected Saturday with
torrential rains leading to flooding possible.

.SPOTTER INFORMATION STATEMENT...

Spotter activation may be needed. Reports should be submitted by
phone by calling 1-866-215-4324, social media, by email at
rnk.skywarn@noaa.gov or online at www.weather.gov/rnk.

NCZ001-018-VAZ011>015-018>020-022>024-151830-
Ashe-Watauga-Giles-Wythe-Pulaski-Montgomery-Grayson-Craig-
Alleghany VA-Bath-Roanoke-Botetourt-Rockbridge-
227 PM EDT Fri Jul 14 2023

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

.DAY ONE...This afternoon and tonight.

A few thunderstorms this afternoon will bring heavy downpours.
Localized flooding is possible.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Storms on Saturday could also bring torrential rains and flooding
especially in the afternoon, as well as damaging winds.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

VAZ007-009-010-WVZ042>044-507-508-151830-
Tazewell-Smyth-Bland-Mercer-Summers-Monroe-Eastern Greenbrier-
Western Greenbrier-
227 PM EDT Fri Jul 14 2023

This Hazardous Weather Outlook is for southwest Virginia and
southeast West Virginia.

.DAY ONE...This afternoon and tonight.

There is a low probability for widespread hazardous weather.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Storms Saturday could bring damaging winds and heavy downpours which
could cause isolated flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

In the hours before

Local storm report, Jul 14, 4:05 PM EDT, 37 minutes before

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Special weather statement, Jul 14, 4:05 PM EDT, 37 minutes before

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Local storm report, Jul 14, 4:07 PM EDT, 35 minutes before

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Special weather statement, Jul 14, 4:11 PM EDT, 31 minutes before

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Local storm report, Jul 14, 4:29 PM EDT, 13 minutes before

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Special weather statement, Jul 14, 4:29 PM EDT, 13 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 13, 8:20 PM EDT	Special Weather Statement	RNK	Campbell	25 min
Jul 13, 8:40 PM EDT	Severe Thunderstorm Warning	RNK	Amherst, Bath, Botetourt, Craig, Rockbridge, City of Buena Vista and 1 more	50 min
Jul 13, 8:50 PM EDT	Special Weather Statement	RNK	Appomattox, Charlotte	40 min
Jul 13, 9:18 PM EDT	Areal Flood Advisory	RNK	Alleghany, Botetourt, Rockbridge	3 hr
Jul 13, 9:18 PM EDT	Special Weather Statement	RNK	Amherst, City of Buena Vista, City of Lynchburg	27 min
Jul 13, 9:52 PM EDT	Areal Flood Advisory	RNK	Botetourt, Craig, Giles, Roanoke	3 hr
Jul 13, 10:27 PM EDT	Flash Flood Watch	RNK	Amherst, Campbell, City of Lynchburg	6 hr
Jul 13, 10:28 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Buckingham, Campbell, Charlotte	34 min
Jul 13, 10:35 PM EDT	Severe Thunderstorm Warning	RNK	Campbell, Charlotte, Halifax, Pittsylvania	28 min
Jul 13, 11:05 PM EDT	Special Weather Statement	RNK	Giles	25 min
Jul 13, 11:16 PM EDT	Severe Thunderstorm Warning	RNK	Craig, Giles, Montgomery, Pulaski	59 min
Jul 14, 12:10 AM EDT	Areal Flood Advisory	RNK	Appomattox, Campbell, Charlotte	112 min
Jul 14, 12:14 AM EDT	Areal Flood Advisory	RNK	Amherst, Bedford, Botetourt, Rockbridge	2 hr
Jul 14, 12:57 AM EDT	Flash Flood Warning	RNK	Craig, Giles, Montgomery	2 hr
Jul 14, 2:00 AM EDT	Areal Flood Advisory	RNK	Botetourt, Craig, Floyd, Franklin, Giles, Montgomery and 3 more	2 hr
Jul 14, 4:08 AM EDT	Areal Flood Advisory	RNK	Bland, Smyth, Tazewell, Wythe	88 min
Jul 14, 3:15 PM EDT	Severe Thunderstorm Warning	RNK	Bland, Giles, Tazewell	60 min
Jul 14, 3:27 PM EDT	Special Weather Statement	RNK	Giles	33 min
Jul 14, 4:11 PM EDT	Special Weather Statement	RNK	Montgomery	34 min
Jul 14, 4:29 PM EDT	Special Weather Statement	RNK	Roanoke, City of Roanoke, City of Salem	31 min
Jul 14, 5:27 PM EDT	Special Weather Statement	RNK	Franklin	33 min
Jul 14, 6:05 PM EDT	Special Weather Statement	RNK	Rockbridge	25 min
Jul 14, 6:07 PM EDT	Severe Thunderstorm Warning	RNK	Bath, Rockbridge	68 min
Jul 14, 6:44 PM EDT	Special Weather Statement	RNK	Alleghany, Bath, City of Covington	46 min
Jul 14, 7:06 PM EDT	Special Weather Statement	RNK	Amherst, Rockbridge, City of Buena Vista, City of Lexington	24 min
Jul 14, 7:16 PM EDT	Areal Flood Advisory	RNK	Alleghany, Amherst, Bath, Botetourt, Rockbridge, City of Buena Vista and 2 more	3 hr
Jul 14, 7:42 PM EDT	Special Weather Statement	RNK	City of Martinsville	33 min
Jul 14, 7:47 PM EDT	Special Weather Statement	RNK	Amherst, Botetourt, Rockbridge, City of Buena Vista, City of Lexington	28 min
Jul 14, 3:53 PM EDT	Special Weather Statement	RNK	Ashe, Watauga	37 min
Jul 14, 4:05 PM EDT	Special Weather Statement	RNK	Surry, Yadkin	25 min
Jul 14, 5:34 PM EDT	Special Weather Statement	RNK	Wilkes	26 min
Jul 14, 5:39 PM EDT	Areal Flood Advisory	RNK	Ashe, Wilkes	3 hr
Jul 14, 7:40 PM EDT	Special Weather Statement	RNK	Ashe	35 min
Jul 13, 8:07 PM EDT	Special Weather Statement	RNK	Mercer	23 min
Jul 13, 9:13 PM EDT	Special Weather Statement	RNK	Monroe	32 min
Jul 13, 10:53 PM EDT	Special Weather Statement	RNK	Monroe, Summers	37 min
Jul 14, 3:08 PM EDT	Special Weather Statement	RNK	Mercer	37 min
Jul 14, 5:21 PM EDT	Special Weather Statement	RNK	Greenbrier	24 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2023 Every severe thunderstorm warning in 2023

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.