Alert archive / Kentucky / Frost Advisories in 2020
Frost Advisory 1, NWS Jackson, KY
NWS Jackson, KY issued this frost advisory at Apr 15, 2020, 10:25 AM EDT for 15 counties in Kentucky. It took effect at Apr 16, 2020, 12:00 AM EDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Apr 15, 2020, 10:25 AM EDT (14:25 UTC)
- In effect from
- Apr 16, 2020, 12:00 AM EDT
- Expired
- Apr 16, 2020, 9:00 AM EDT
- In force
- 9 hr
- Issued by
- NWS Jackson, KY
Counties Bell County, KY, Clay County, KY, Floyd County, KY, Harlan County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Leslie County, KY, Letcher County, KY, McCreary County, KY, Perry County, KY, Pike County, KY, Pulaski County, KY, Wayne County, KY, Whitley County, KY
The radar
The Jackson,KY radar (KJKL), 64 km from the middle of the area, began a volume at 14:29 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
Nashville Metro, TN (KBNA), launched 12:00Z, 2.4 hours before the alert went out and 286 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
- 2137 m above ground
- 0-6 km bulk shear
- 110 kt
- 0-1 km storm-relative helicity
- -176 m²/s²
- 0-3 km storm-relative helicity
- -91 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 14, 8:41 PM EDT | River Flood Advisory | JKL | Knox | 14 hr |
| Apr 15, 10:25 AM EDT | Freeze Warning | JKL | Bath, Breathitt, Clay, Elliott, Estill, Fleming and 22 more | 23 hr |
| Apr 15, 5:02 PM EDT | River Flood Advisory | JKL | Whitley | 27 hr |
Nearby
Frost Advisories in Kentucky, 2020Every frost advisory in 2020
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.