Alert archive / West Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Blacksburg, VA

May 25, 2021Monroe County, West Virginia

NWS Blacksburg, VA issued this special weather statement at May 25, 2021, 3:08 PM EDT for Monroe County, West Virginia. It was in force for 37 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
May 25, 2021, 3:08 PM EDT (19:08 UTC)
Expired
May 25, 2021, 3:45 PM EDT
In force
37 min
Issued by
NWS Blacksburg, VA

County Monroe County, WV

The radar

The Roanoke radar (KFCX), 70 km from the middle of the area, began a volume at 19:11 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, 7.1 hours before the alert went out and 118 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, Roanoke, VA at 12:00Z on 2021-05-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 66 joules per kilogram.LCLLFCEL10008507005003002001001 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, Roanoke, VA at 12:00Z on 2021-05-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 40 square meters per square second.1939Sfc1 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
66 J/kg
Mixed-layer CIN
-57 J/kg
Mixed-layer LCL
610 m above ground
0-6 km bulk shear
15 kt
0-1 km storm-relative helicity
40 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

927 
WWUS81 KRNK 251908
SPSRNK

Special Weather Statement
National Weather Service BLACKSBURG VA
308 PM EDT Tue May 25 2021

VAZ011-WVZ043-044-251945-
Giles-Summers-Monroe-
308 PM EDT Tue May 25 2021

...A STRONG THUNDERSTORM WILL AFFECT NORTH CENTRAL 
GILES...SOUTHEASTERN SUMMERS AND WESTERN MONROE COUNTIES...

At 307 PM EDT, a strong thunderstorm was located over Bozoo, or near
Peterstown, moving northeast at 15 mph.

Wind gusts up to 50 mph are possible with this storm.

Locations impacted include...
Peterstown...
Union...
Rich Creek...
Glen Lyn...
Red Sulphur Spring...
Laurel Branch...
and Buck.

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 3773 8067 3750 8047 3736 8084 3740 8087
      3741 8086 3743 8086 3750 8097
TIME...MOT...LOC 1907Z 235DEG 14KT 3748 8083 

$$

KK

The office that day

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

IssuedProductOfficeCountiesLasted
May 24, 8:41 PM EDTSpecial Weather StatementRNKCity of Lynchburg49 min
May 24, 9:27 PM EDTSpecial Weather StatementRNKFloyd33 min
May 24, 10:10 PM EDTSpecial Weather StatementRNKFranklin35 min
May 25, 12:43 PM EDTSpecial Weather StatementRNKWythe47 min
May 25, 1:33 PM EDTSpecial Weather StatementRNKPulaski42 min
May 25, 1:42 PM EDTSpecial Weather StatementRNKGrayson48 min
May 25, 2:03 PM EDTSpecial Weather StatementRNKGiles42 min
May 25, 2:28 PM EDTSpecial Weather StatementRNKMontgomery, City of Radford47 min
May 25, 2:34 PM EDTSpecial Weather StatementRNKCity of Galax41 min
May 25, 2:44 PM EDTSpecial Weather StatementRNKCraig46 min
May 25, 3:05 PM EDTSpecial Weather StatementRNKMontgomery, Roanoke25 min
May 25, 3:17 PM EDTSpecial Weather StatementRNKAlleghany, City of Covington43 min
May 25, 3:45 PM EDTSpecial Weather StatementRNKCraig45 min
May 25, 4:18 PM EDTSpecial Weather StatementRNKBath42 min
May 25, 4:34 PM EDTSevere Thunderstorm WarningRNKBath41 min
May 25, 4:41 PM EDTSpecial Weather StatementRNKCity of Galax49 min
May 25, 4:56 PM EDTAreal Flood AdvisoryRNKCarroll, Grayson, City of Galax109 min
May 25, 6:38 PM EDTSpecial Weather StatementRNKPatrick37 min
May 25, 7:57 PM EDTSpecial Weather StatementRNKPatrick48 min
May 25, 5:48 PM EDTSpecial Weather StatementRNKWilkes57 min
May 25, 6:47 PM EDTSpecial Weather StatementRNKWilkes28 min
May 25, 7:31 PM EDTSpecial Weather StatementRNKSurry29 min

Nearby

Special Weather Statements in West Virginia, 2021Every 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.