Alert archive / North Carolina / Wind Chill Advisories in 2013
Wind Chill Advisory 4, NWS Blacksburg, VA
NWS Blacksburg, VA issued this wind chill advisory at Nov 23, 2013, 3:29 PM EST for Bath County, Grayson County, Virginia; Alleghany County, Ashe County, Watauga County, North Carolina. It took effect at Nov 24, 2013, 12:00 AM EST. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Nov 23, 2013, 3:29 PM EST (20:29 UTC)
- In effect from
- Nov 24, 2013, 12:00 AM EST
- Expired
- Nov 24, 2013, 9:00 AM EST
- In force
- 9 hr
- Issued by
- NWS Blacksburg, VA
Counties Alleghany County, NC, Ashe County, NC, Watauga County, NC, Bath County, VA, Grayson County, VA
The radar
The Roanoke radar (KFCX), 75 km from the middle of the area, began a volume at 20:31 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 12:00Z, 8.5 hours before the alert went out and 129 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 679 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- -23 m²/s²
- 0-3 km storm-relative helicity
- 113 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this wind chill advisory 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 wind chill advisory went out at Nov 23, 1:02 PM EST, 2 hours 27 minutes earlier.
Area forecast discussion, Nov 23, 1:02 PM EST, 2 hours 27 minutes before
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</html>Hazardous weather outlook, Nov 23, 1:06 PM EST, 2 hours 23 minutes before
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</html>The office that day
Everything else NWS Blacksburg, VA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 23, 4:32 AM EST | Wind Advisory | RNK | Carroll, Floyd, Grayson, City of Galax | 32 hr |
| Nov 23, 11:55 AM EST | Fire Weather Watch | RNK | Alleghany, Amherst, Bath, Bedford, Botetourt, Craig and 4 more | 16 hr |
Nearby
Wind Chill Advisories in North Carolina, 2013Wind Chill Advisories in Virginia, 2013Wind Chill Advisories in West Virginia, 2013Every wind chill advisory in 2013
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.