Alert archive / Kentucky / Winter Weather Advisories in 2014
Winter Weather Advisory 21, NWS Jackson, KY
NWS Jackson, KY issued this winter weather advisory at Mar 29, 2014, 4:00 PM EDT for 4 counties in Kentucky. It took effect at Mar 29, 2014, 10:00 PM EDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Mar 29, 2014, 4:00 PM EDT (20:00 UTC)
- In effect from
- Mar 29, 2014, 10:00 PM EDT
- Expired
- Mar 30, 2014, 7:10 AM EDT
- In force
- 9 hr
- Issued by
- NWS Jackson, KY
Counties Harlan County, KY, Letcher County, KY, Martin County, KY, Pike County, KY
The radar
The Jackson,KY radar (KJKL), 59 km from the middle of the area, began a volume at 20:02 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
Roanoke, VA (KRNK), launched 12:00Z, 8.0 hours before the alert went out and 287 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
- 595 m above ground
- 0-6 km bulk shear
- 43 kt
- 0-1 km storm-relative helicity
- 116 m²/s²
- 0-3 km storm-relative helicity
- 210 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this winter weather advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Jackson, KY wrote its last area forecast discussion before this winter weather advisory went out at Mar 29, 2:20 PM EDT, 1 hour 40 minutes earlier.
Area forecast discussion, Mar 29, 2:20 PM EDT, 1 hour 40 minutes before
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</html>Hazardous weather outlook, Mar 29, 4:25 AM EDT, 11 hours 35 minutes before
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Winter Weather Advisories in Kentucky, 2014Every winter weather advisory in 2014
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.