Alert archive / Virginia / Special Weather Statements in 2021

Special Weather Statement, NWS Charleston, WV

August 26, 2021Highland County, Virginia

NWS Charleston, WV issued this special weather statement at Aug 26, 2021, 5:13 PM EDT for Highland County, Virginia. It was in force for 62 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 26, 2021, 5:13 PM EDT (21:13 UTC)
Expired
Aug 26, 2021, 6:15 PM EDT
In force
62 min
Issued by
NWS Charleston, WV
Hail
0.00 in
Wind
30

County Highland County, VA

The radar

The Roanoke radar (KFCX), 168 km from the middle of the area, began a volume at 21:14 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, 9.2 hours before the alert went out and 143 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 2021-08-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 499 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 2021-08-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 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
499 J/kg
Mixed-layer CIN
-100 J/kg
Mixed-layer LCL
1041 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
19 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

180 
WWUS81 KRLX 262113
SPSRLX

Special Weather Statement
National Weather Service Charleston WV
513 PM EDT Thu Aug 26 2021
 
WVZ523-262215-
Northwest Pocahontas WV-
513 PM EDT Thu Aug 26 2021

...Downpours will impact portions of northeastern Pocahontas County 
through 615 PM EDT...

At 508 PM EDT, Doppler radar was tracking thunderstorms with heavy 
rainfall 8 miles northeast of Greenbank, moving north at 10 mph.

HAZARD...Heavy rain.

SOURCE...Radar indicated.

IMPACT...Heavy rainfall will cause rapid rises on small streams and 
         creeks. Campers and backpackers should stay away from creek 
         banks as runoff continues.

This storm will remain over mainly rural areas of northeastern
Pocahontas County.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building. 

Excessive runoff from heavy rainfall will cause elevated levels on
small creeks and streams, and ponding of water on country roads and
farmland along the banks of creeks and streams.

In hilly terrain there are hundreds of low water crossings which are
potentially dangerous in heavy rain. Do not attempt to travel across
flooded roads. Find alternate routes. It takes only a few inches of
swiftly flowing water to carry vehicles away.

&&

LAT...LON 3843 7969 3846 7978 3847 7978 3848 7977
      3850 7977 3852 7974 3850 7969 3847 7970
      3845 7969
TIME...MOT...LOC 2108Z 185DEG 8KT 3850 7970 

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...<30 MPH

$$

30

The office that day

Everything else NWS Charleston, WV issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Aug 26, 2:00 PM EDTSpecial Weather StatementRLXTucker30 min
Aug 26, 2:52 PM EDTSpecial Weather StatementRLXPendleton23 min
Aug 26, 4:11 PM EDTSpecial Weather StatementRLXWebster64 min
Aug 26, 5:53 PM EDTSpecial Weather StatementRLXFayette52 min
Aug 26, 6:20 PM EDTFlash Flood WarningRLXNicholas113 min
Aug 26, 7:53 PM EDTSpecial Weather StatementRLXRaleigh52 min

Nearby

Special Weather Statements in 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.