Alert archive / Tennessee / Wind Chill Advisories in 2015
Wind Chill Advisory 4, NWS Morristown, TN
NWS Morristown, TN issued this wind chill advisory at Feb 12, 2015, 4:37 PM EST for 7 counties in Tennessee. It took effect at Feb 12, 2015, 7:00 PM EST. It was in force for 15 hr.
The area
The counties it named.
The facts
- Issued
- Feb 12, 2015, 4:37 PM EST (21:37 UTC)
- In effect from
- Feb 12, 2015, 7:00 PM EST
- Expired
- Feb 13, 2015, 10:00 AM EST
- In force
- 15 hr
- Issued by
- NWS Morristown, TN
Counties Blount County, TN, Carter County, TN, Cocke County, TN, Greene County, TN, Johnson County, TN, Sevier County, TN, Unicoi County, TN
The radar
The Knoxville radar (KMRX), 53 km from the middle of the area, began a volume at 21:37 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
Peachtre/Fal Fld, GA (KFFC), launched 12:00Z, 9.6 hours before the alert went out and 336 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
- 1190 m above ground
- 0-6 km bulk shear
- 53 kt
- 0-1 km storm-relative helicity
- -100 m²/s²
- 0-3 km storm-relative helicity
- -66 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 Morristown, TN wrote its last area forecast discussion before this wind chill advisory went out at Feb 12, 3:19 PM EST, 1 hour 18 minutes earlier.
Area forecast discussion, Feb 12, 3:19 PM EST, 1 hour 18 minutes before
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</html>Hazardous weather outlook, Feb 12, 3:22 PM EST, 1 hour 15 minutes before
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</html>Nearby
Wind Chill Advisories in Tennessee, 2015Every wind chill advisory in 2015
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.