Alert archive / Virginia / Snow Advisories in 2005

Snow Advisory 5, NWS Blacksburg, VA

November 22, 2005Bland County, Smyth County, Tazewell County, Virginia; Mercer County, Summers County, West Virginia

NWS Blacksburg, VA issued this snow advisory at Nov 22, 2005, 5:02 AM EST for Bland County, Smyth County, Tazewell County, Virginia; Mercer County, Summers County, West Virginia. It took effect at Nov 22, 2005, 6:00 AM EST. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued
Nov 22, 2005, 5:02 AM EST (10:02 UTC)
In effect from
Nov 22, 2005, 6:00 AM EST
Expired
Nov 23, 2005, 4:00 AM EST
In force
22 hr
Issued by
NWS Blacksburg, VA

Counties Bland County, VA, Smyth County, VA, Tazewell County, VA, Mercer County, WV, Summers County, WV

The radar

The Roanoke radar (KFCX), 89 km from the middle of the area, began a volume at 10:01 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

Greensboro/Hi Pt, NC (KGSO), launched 00:00Z, 10.0 hours before the alert went out and 175 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 00:00Z on 2005-11-22Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Greensboro/Hi Pt, NC at 00:00Z on 2005-11-22The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 163 square meters per square second.1939587897Sfc1 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
635 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
163 m²/s²
0-3 km storm-relative helicity
503 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 22, 4:51 AM ESTWind AdvisoryRNKCarroll, Grayson, City of Galax23 hr
Nov 22, 5:02 AM ESTWinter Weather AdvisoryRNKGrayson23 hr

Nearby

Snow Advisories in Virginia, 2005Snow Advisories in West Virginia, 2005Every snow advisory in 2005

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.