Alert archive / North Carolina / High Wind Watches in 2006

High Wind Watch 4, NWS Blacksburg, VA

October 27, 2006Grayson County, Virginia; Ashe County, Watauga County, North Carolina

NWS Blacksburg, VA issued this high wind watch at Oct 27, 2006, 3:48 PM EDT for Grayson County, Virginia; Ashe County, Watauga County, North Carolina. It took effect at Oct 28, 2006, 6:00 AM EDT. It was in force for .

The area

The counties it named.

The facts

Issued
Oct 27, 2006, 3:48 PM EDT (19:48 UTC)
In effect from
Oct 28, 2006, 6:00 AM EDT
Expired
Oct 28, 2006, 3:48 AM EDT
In force
Issued by
NWS Blacksburg, VA

Counties Ashe County, NC, Watauga County, NC, Grayson County, VA

The radar

The Roanoke radar (KFCX), 125 km from the middle of the area, began a volume at 19:51 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.8 hours before the alert went out and 390 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, Cncnati-Daytn, OH at 12:00Z on 2006-10-27Temperature 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, Cncnati-Daytn, OH at 12:00Z on 2006-10-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 139 square meters per square second.1939587897117Sfc1 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
507 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
139 m²/s²
0-3 km storm-relative helicity
165 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this high wind watch went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Blacksburg, VA wrote its last area forecast discussion before this high wind watch went out at Oct 27, 2:50 PM EDT, 58 minutes earlier.

Area forecast discussion, Oct 27, 2:50 PM EDT, 58 minutes before
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Hazardous weather outlook, Oct 27, 5:30 AM EDT, 10 hours 18 minutes before
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Nearby

High Wind Watches in North Carolina, 2006High Wind Watches in Virginia, 2006Every high wind watch in 2006

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.