Alert archive / Virginia / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 47, NWS Blacksburg, VA

June 9, 2021Amherst County, Virginia

NWS Blacksburg, VA issued this severe thunderstorm warning at Jun 9, 2021, 6:28 PM EDT for Amherst County, Virginia. It was in force for 47 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: Jun 9, 2021, 6:28 PM EDT (22:28 UTC)
Expired: Jun 9, 2021, 7:15 PM EDT
In force: 47 min
Issued by: NWS Blacksburg, VA
Area: Storm-based polygon
Hail: 1.0 in
Wind: 60.0 mph

County Amherst County, VA

The radar

The Roanoke radar (KFCX), 112 km from the middle of the area, began a volume at 22:28 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, 10.5 hours before the alert went out and 52 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: 92 J/kg
Mixed-layer CIN: -99 J/kg
Mixed-layer LCL: 1085 m above ground
0-6 km bulk shear: 12 kt
0-1 km storm-relative helicity: -24 m²/s²
0-3 km storm-relative helicity: 42 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

547 
WUUS51 KRNK 092228
SVRRNK
VAC009-092315-
/O.NEW.KRNK.SV.W.0047.210609T2228Z-210609T2315Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service BLACKSBURG VA
628 PM EDT Wed Jun 9 2021

The National Weather Service in BLACKSBURG has issued a

* Severe Thunderstorm Warning for...
  Northwestern Amherst County in central Virginia...

* Until 715 PM EDT.

* At 628 PM EDT, a severe thunderstorm was located near Oronoco, or
  near Forks Of Buffalo, moving southeast at 15 mph.

  HAZARD...60 mph wind gusts and quarter size hail.

  SOURCE...Radar indicated.

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

* Locations impacted include...
  Amherst...
  Forks Of Buffalo...
  Naola...
  Pleasant View...
  Oronoco...
  and Elon.

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.

Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.

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 3758 7905 3750 7926 3751 7926 3750 7929
      3764 7937 3766 7935 3768 7934 3770 7932
      3771 7932 3772 7931 3776 7923
TIME...MOT...LOC 2228Z 327DEG 12KT 3768 7928 

HAIL...1.00IN
WIND...60MPH
 
$$

DS

3 follow-up statements

644 
WWUS51 KRNK 092249
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
649 PM EDT Wed Jun 9 2021

VAC009-092315-
/O.CON.KRNK.SV.W.0047.000000T0000Z-210609T2315Z/
Amherst VA-
649 PM EDT Wed Jun 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR CENTRAL AMHERST COUNTY...

At 649 PM EDT, a severe thunderstorm was located over Pleasant View,
or near Forks Of Buffalo, moving southeast at 15 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Amherst...
Forks Of Buffalo...
Naola...
Pleasant View...
and Elon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.

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 3758 7905 3750 7926 3751 7926 3750 7929
      3763 7936 3772 7919
TIME...MOT...LOC 2249Z 327DEG 12KT 3762 7923 

HAIL...<.75IN
WIND...60MPH
 
$$

DS

425 
WWUS51 KRNK 092303
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
703 PM EDT Wed Jun 9 2021

VAC009-092315-
/O.CON.KRNK.SV.W.0047.000000T0000Z-210609T2315Z/
Amherst VA-
703 PM EDT Wed Jun 9 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 715 PM EDT
FOR CENTRAL AMHERST COUNTY...

At 703 PM EDT, severe thunderstorms were located along a line
extending from near Amherst to near Naola, moving southeast at 10
mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
Amherst...
Naola...
Pleasant View...
and Elon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Locally heavy rain will quickly reduce visibility and result in
ponding of water on roadways, standing water in low lying areas, and
minor flooding of creeks, streams, and areas of poor drainage.
Drivers are urged to slow down and use extra caution to avoid
hydroplaning.

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 3758 7905 3750 7926 3751 7926 3750 7929
      3760 7934 3764 7911
TIME...MOT...LOC 2303Z 328DEG 10KT 3761 7910 3756 7932 

HAIL...<.75IN
WIND...60MPH
 
$$

DS

986 
WWUS51 KRNK 092315
SVSRNK

Severe Weather Statement
National Weather Service BLACKSBURG VA
715 PM EDT Wed Jun 9 2021

VAC009-092325-
/O.EXP.KRNK.SV.W.0047.000000T0000Z-210609T2315Z/
Amherst VA-
715 PM EDT Wed Jun 9 2021

...THE SEVERE THUNDERSTORM WARNING FOR CENTRAL AMHERST COUNTY HAS 
EXPIRED...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning has been allowed to expire.  However heavy
rain is still possible with these thunderstorms.

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 3758 7905 3750 7926 3751 7926 3750 7929
      3760 7934 3764 7911
TIME...MOT...LOC 2315Z 327DEG 12KT 3759 7908 3754 7930 

$$

DS

The office that day

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

Issued	Product	Office	Counties	Lasted
Jun 9, 12:45 PM EDT	Special Weather Statement	RNK	Buckingham	45 min
Jun 9, 1:01 PM EDT	Special Weather Statement	RNK	Halifax	29 min
Jun 9, 1:19 PM EDT	Areal Flood Advisory	RNK	Grayson, City of Galax	116 min
Jun 9, 1:37 PM EDT	Severe Thunderstorm Warning	RNK	Carroll, Grayson, City of Galax	38 min
Jun 9, 1:52 PM EDT	Areal Flood Advisory	RNK	Appomattox, Buckingham	113 min
Jun 9, 2:40 PM EDT	Special Weather Statement	RNK	Appomattox	35 min
Jun 9, 2:51 PM EDT	Special Weather Statement	RNK	Patrick	24 min
Jun 9, 3:05 PM EDT	Special Weather Statement	RNK	Pulaski	25 min
Jun 9, 3:36 PM EDT	Special Weather Statement	RNK	Campbell	24 min
Jun 9, 3:51 PM EDT	Special Weather Statement	RNK	Pulaski	24 min
Jun 9, 4:12 PM EDT	Special Weather Statement	RNK	Roanoke	33 min
Jun 9, 4:18 PM EDT	Special Weather Statement	RNK	Mecklenburg	42 min
Jun 9, 5:02 PM EDT	Special Weather Statement	RNK	Buckingham	43 min
Jun 9, 5:21 PM EDT	Special Weather Statement	RNK	City of Roanoke	24 min
Jun 9, 6:10 PM EDT	Special Weather Statement	RNK	City of Buena Vista	35 min
Jun 9, 6:13 PM EDT	Special Weather Statement	RNK	Pittsylvania	32 min
Jun 9, 6:47 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania	43 min
Jun 9, 7:14 PM EDT	Areal Flood Advisory	RNK	Amherst, Appomattox, Bedford, Campbell, City of Lynchburg	111 min
Jun 9, 7:29 PM EDT	Special Weather Statement	RNK	Halifax	31 min

Nearby

Severe Thunderstorm Warnings in Virginia, 2021 Every 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.