Alert archive / Tennessee / High Wind Watches in 2013
High Wind Watch 4, NWS Morristown, TN
NWS Morristown, TN issued this high wind watch at Feb 24, 2013, 3:39 PM EST for 10 counties in Tennessee; Russell County, Washington County, City of Bristol, Virginia. It took effect at Feb 25, 2013, 10:00 PM EST. It was in force for .
The area
The counties it named.
The facts
- Issued
- Feb 24, 2013, 3:39 PM EST (20:39 UTC)
- In effect from
- Feb 25, 2013, 10:00 PM EST
- Expired
- Feb 25, 2013, 3:48 AM EST
- In force
- Issued by
- NWS Morristown, TN
Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, McMinn County, TN, Monroe County, TN, Sevier County, TN, Unicoi County, TN, Washington County, TN, City of Bristol, VA, Russell County, VA, Washington County, VA
The radar
The Knoxville radar (KMRX), 47 km from the middle of the area, began a volume at 20:38 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, 8.7 hours before the alert went out and 268 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
- 1013 m above ground
- 0-6 km bulk shear
- 93 kt
- 0-1 km storm-relative helicity
- -21 m²/s²
- 0-3 km storm-relative helicity
- 48 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
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 Morristown, TN wrote its last area forecast discussion before this high wind watch went out at Feb 24, 3:28 PM EST, 11 minutes earlier.
Area forecast discussion, Feb 24, 3:28 PM EST, 11 minutes before
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</html>Hazardous weather outlook, Feb 24, 3:13 AM EST, 12 hours 26 minutes before
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High Wind Watches in Tennessee, 2013High Wind Watches in Virginia, 2013Every high wind watch 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.