Alert archive / Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Blacksburg, VA

August 28, 2021Bath County, Virginia

NWS Blacksburg, VA issued this special weather statement at Aug 28, 2021, 6:21 PM EDT for Bath County, Virginia. It was in force for 24 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: Aug 28, 2021, 6:21 PM EDT (22:21 UTC)
Expired: Aug 28, 2021, 6:45 PM EDT
In force: 24 min
Issued by: NWS Blacksburg, VA
Hail: 0.25 in
Wind: 30

County Bath County, VA

The radar

The Roanoke radar (KFCX), 139 km from the middle of the area, began a volume at 22:21 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, 10.4 hours before the alert went out and 102 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: 329 J/kg
Mixed-layer CIN: -126 J/kg
Mixed-layer LCL: 1018 m above ground
0-6 km bulk shear: 8 kt
0-1 km storm-relative helicity: -4 m²/s²
0-3 km storm-relative helicity: 24 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

567 
WWUS81 KRNK 282221
SPSRNK

Special Weather Statement
National Weather Service BLACKSBURG VA
621 PM EDT Sat Aug 28 2021
 
VAZ020-282245-
Bath VA-
621 PM EDT Sat Aug 28 2021

...A strong thunderstorm will impact portions of northeastern Bath 
County through 645 PM EDT...

At 620 PM EDT, Doppler radar was tracking a strong thunderstorm over
Yost, or near Goshen. This storm was nearly stationary.

HAZARD...Winds in excess of 30 mph and pea size hail.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around 
         unsecured objects. Minor damage to outdoor objects is 
         possible.

Locations impacted include...
Yost.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

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.

&&

LAT...LON 3818 7951 3817 7952 3815 7953 3817 7949
      3816 7944 3810 7949 3809 7948 3805 7952
      3803 7951 3800 7954 3805 7964 3820 7957
TIME...MOT...LOC 2220Z 208DEG 4KT 3806 7956 

MAX HAIL SIZE...0.25 IN
MAX WIND GUST...30 MPH

$$

RAB

The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 28, 2:22 PM EDT	Special Weather Statement	RNK	Montgomery	38 min
Aug 28, 3:20 PM EDT	Special Weather Statement	RNK	Campbell	25 min
Aug 28, 3:30 PM EDT	Special Weather Statement	RNK	Craig	30 min
Aug 28, 3:45 PM EDT	Severe Thunderstorm Warning	RNK	Halifax, Pittsylvania	30 min
Aug 28, 4:24 PM EDT	Special Weather Statement	RNK	Halifax	36 min
Aug 28, 4:26 PM EDT	Special Weather Statement	RNK	Appomattox	34 min
Aug 28, 4:46 PM EDT	Severe Thunderstorm Warning	RNK	Appomattox, Campbell, Charlotte	44 min
Aug 28, 5:24 PM EDT	Special Weather Statement	RNK	Bath	51 min
Aug 28, 5:28 PM EDT	Special Weather Statement	RNK	City of Covington	32 min
Aug 28, 6:46 PM EDT	Special Weather Statement	RNK	Bath	29 min
Aug 28, 7:02 PM EDT	Special Weather Statement	RNK	Charlotte	28 min
Aug 28, 7:33 PM EDT	Special Weather Statement	RNK	Charlotte	27 min

Nearby

Special Weather Statements in Virginia, 2021 Every special weather statement 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.