Alert archive / Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 8, NWS Blacksburg, VA

March 27, 20215 counties in Virginia; Alleghany County, Ashe County, North Carolina

NWS Blacksburg, VA issued this severe thunderstorm warning at Mar 27, 2021, 12:22 PM EDT for 5 counties in Virginia; Alleghany County, Ashe County, North Carolina. It was in force for 53 min. 11 reports came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued
Mar 27, 2021, 12:22 PM EDT (16:22 UTC)
Expired
Mar 27, 2021, 1:15 PM EDT
In force
53 min
Issued by
NWS Blacksburg, VA
Area
Storm-based polygon
Hail
1.25 in
Wind
60.0 mph

Counties Alleghany County, NC, Ashe County, NC, Carroll County, VA, City of Galax, VA, Grayson County, VA, Smyth County, VA, Wythe County, VA

The radar

The Roanoke radar (KFCX), 125 km from the middle of the area, began a volume at 16:23 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.

What was reported inside it

TimeReportWhereRemark
Mar 27, 12:37 PM EDTHAIL 0.51 Wsw Ivanhoe, VA
Mar 27, 12:40 PM EDTHAIL 0.71 E Flatwood, NC
Mar 27, 12:55 PM EDTHAIL 0.71 Nnw Mouth Of Wilson, VA
Mar 27, 1:05 PM EDTHAIL 1.752 Ese Elk Creek, VA
Mar 27, 1:07 PM EDTHAIL 13 Nne Independence, VA
Mar 27, 1:12 PM EDTHAIL 1.255 Nw Baywood, VA
Mar 27, 1:15 PM EDTHAIL 11 W Fries, VA
Mar 27, 1:15 PM EDTHAIL 14 Ssw Spring Valley, VA
Mar 27, 1:20 PM EDTHAIL 21 W Fries, VA
Mar 27, 1:22 PM EDTHAIL 12 E Fries, VA
Mar 27, 1:25 PM EDTHAIL 0.52 Sse Byllesby, VAHAIL RANGED FROM 3/8 TO 1/2 INCH AND COVERED THE GROUND. HAIL ENDED AT 0130 PM EDT.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Greensboro/Hi Pt, NC (KGSO), launched 12:00Z, 4.4 hours before the alert went out and 159 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-pSkew-T log-p diagram, Greensboro/Hi Pt, NC at 12:00Z on 2021-03-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 12:00Z on 2021-03-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 60 square meters per square second.19395878Sfc1 km3 km6 km9 kmRMLM
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
2434 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
60 m²/s²
0-3 km storm-relative helicity
145 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

409 
WUUS51 KRNK 271622
SVRRNK
NCC005-009-VAC035-077-173-197-640-271715-
/O.NEW.KRNK.SV.W.0008.210327T1622Z-210327T1715Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
1222 PM EDT Sat Mar 27 2021

The National Weather Service in BLACKSBURG has issued a

* Severe Thunderstorm Warning for...
  Northwestern Alleghany County in northwestern North Carolina...
  Northern Ashe County in northwestern North Carolina...
  Southeastern Smyth County in southwestern Virginia...
  Southwestern Wythe County in southwestern Virginia...
  Southwestern Carroll County in southwestern Virginia...
  The City of Galax in southwestern Virginia...
  Grayson County in southwestern Virginia...

* Until 115 PM EDT.

* At 1221 PM EDT, a severe thunderstorm was located near Flatwood, or
  near Mountain City, moving northeast at 60 mph.

  HAZARD...60 mph wind gusts and half dollar size hail.

  SOURCE...Radar indicated.

  IMPACT...Hail damage to vehicles is expected. Expect wind damage 
           to roofs, siding, and trees.

* Locations impacted include...
  Galax...
  Independence...
  Fries...
  Lansing...
  Mouth Of Wilson...
  Whitetop...
  and Speedwell.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for large hail and damaging winds. For your
safety, move to an interior room on the lowest floor of a sturdy
building. Stay away from windows.

When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.

&&

LAT...LON 3647 8170 3653 8171 3657 8169 3657 8168
      3659 8168 3662 8161 3664 8161 3664 8162
      3666 8163 3694 8105 3662 8076 3643 8172
      3646 8172
TIME...MOT...LOC 1621Z 243DEG 52KT 3653 8172 

HAIL...1.25IN
WIND...60MPH
 
$$

RR
2 follow-up statements
196 
WWUS51 KRNK 271642
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
1242 PM EDT Sat Mar 27 2021

NCC005-009-VAC035-077-173-197-640-271715-
/O.CON.KRNK.SV.W.0008.000000T0000Z-210327T1715Z/
Alleghany NC-Ashe NC-Smyth VA-Wythe VA-Carroll VA-City of Galax VA-
Grayson VA-
1242 PM EDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR
NORTHWESTERN ALLEGHANY AND NORTH CENTRAL ASHE COUNTIES IN
NORTHWESTERN NORTH CAROLINA...SOUTHEASTERN SMYTH...SOUTHWESTERN
WYTHE...SOUTHWESTERN CARROLL AND GRAYSON COUNTIES IN SOUTHWESTERN
VIRGINIA AND THE CITY OF GALAX...

At 1242 PM EDT, a severe thunderstorm was located over Rugby, or near
Mouth Of Wilson, moving northeast at 50 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Galax...
Independence...
Fries...
Mouth Of Wilson...
Whitetop...
Speedwell...
and Sugar Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for LARGE HAIL AND DAMAGING WINDS. For your
safety, move to an interior room on the lowest floor of a sturdy
building. Stay away from windows.

When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.

&&

LAT...LON 3650 8155 3656 8164 3662 8161 3664 8161
      3664 8162 3694 8105 3662 8076
TIME...MOT...LOC 1642Z 245DEG 45KT 3662 8144 

HAIL...1.25IN
WIND...60MPH
 
$$

RR
102 
WWUS51 KRNK 271658
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
1258 PM EDT Sat Mar 27 2021

NCC005-009-VAC173-271708-
/O.CAN.KRNK.SV.W.0008.000000T0000Z-210327T1715Z/
Alleghany NC-Ashe NC-Smyth VA-
1258 PM EDT Sat Mar 27 2021

...THE SEVERE THUNDERSTORM WARNING FOR 
NORTHWESTERN ALLEGHANY...NORTH CENTRAL ASHE COUNTIES IN NORTHWESTERN
NORTH CAROLINA AND SOUTHEASTERN SMYTH COUNTIES IN SOUTHWESTERN
VIRGINIA IS CANCELLED...
    
The severe thunderstorm which prompted the warning has moved out of 
the warned area. Therefore, the warning has been cancelled.

When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.

LAT...LON 3676 8129 3676 8126 3677 8126 3689 8101
      3663 8077 3657 8133 3671 8139
TIME...MOT...LOC 1658Z 251DEG 45KT 3666 8123 

$$

VAC035-077-197-640-271715-
/O.CON.KRNK.SV.W.0008.000000T0000Z-210327T1715Z/
Wythe VA-Carroll VA-City of Galax VA-Grayson VA-
1258 PM EDT Sat Mar 27 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 115 PM EDT
FOR
SOUTH CENTRAL WYTHE...SOUTHWESTERN CARROLL AND GRAYSON COUNTIES AND
THE CITY OF GALAX...

At 1258 PM EDT, a severe thunderstorm was located near Bridle Creek,
or near Independence, moving east at 50 mph.

HAZARD...60 mph wind gusts and half dollar size hail.

SOURCE...Radar indicated.

IMPACT...Hail damage to vehicles is expected. Expect wind damage to 
         roofs, siding, and trees.

Locations impacted include...
Galax...
Independence...
Fries...
Mouth Of Wilson...
Speedwell...
Baywood...
and Flatridge.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Prepare immediately for LARGE HAIL AND DAMAGING WINDS. For your
safety, move to an interior room on the lowest floor of a sturdy
building. Stay away from windows.

When it is safe to do so, please send your reports of hail of any
size, as well as reports of any wind damage, including downed trees
or large limbs, to the National Weather Service by calling toll free
at 1...8 6 6...2 1 5...4 3 2 4. Reports and pictures can also be
shared on the National Weather Service Blacksburg Facebook page and
on Twitter.

&&

LAT...LON 3676 8129 3676 8126 3677 8126 3689 8101
      3663 8077 3657 8133 3671 8139
TIME...MOT...LOC 1658Z 251DEG 45KT 3666 8123 

HAIL...1.25IN
WIND...60MPH
 
$$

RR

The office that day

Everything else NWS Blacksburg, VA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 27, 11:26 AM EDTSpecial Weather StatementRNKSmyth, Tazewell64 min
Mar 27, 11:52 AM EDTSevere Thunderstorm WarningRNKBland, Grayson, Smyth, Tazewell, Wythe53 min
Mar 27, 1:11 PM EDTSevere Thunderstorm WarningRNKCarroll, Floyd, Grayson, Montgomery, Patrick, Pulaski and 2 more64 min
Mar 27, 1:15 PM EDTSevere Thunderstorm WarningRNKBland, Grayson, Smyth, Tazewell, Wythe60 min
Mar 27, 2:04 PM EDTSevere Thunderstorm WarningRNKFloyd, Franklin, Patrick41 min
Mar 27, 2:06 PM EDTSevere Thunderstorm WarningRNKBland, Carroll, Grayson, Pulaski, Smyth, Wythe and 1 more39 min
Mar 27, 2:38 PM EDTSevere Thunderstorm WarningRNKBedford, Campbell, Franklin, Pittsylvania52 min
Mar 27, 2:43 PM EDTSpecial Weather StatementRNKCarroll, Floyd, Henry, Patrick, Pulaski47 min
Mar 27, 2:56 PM EDTSevere Thunderstorm WarningRNKCarroll, Floyd, Franklin, Henry, Montgomery, Patrick and 4 more64 min
Mar 27, 3:44 PM EDTSpecial Weather StatementRNKCaswell31 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2021Severe Thunderstorm Warnings in North Carolina, 2021Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.