Alert archive / Kentucky / Freeze Watches in 2021
Freeze Watch 3, NWS Jackson, KY
NWS Jackson, KY issued this freeze watch at Apr 21, 2021, 3:33 PM EDT for 20 counties in Kentucky. It took effect at Apr 23, 2021, 2:00 AM EDT. It was in force for .
The area
The counties it named.
The facts
- Issued
- Apr 21, 2021, 3:33 PM EDT (19:33 UTC)
- In effect from
- Apr 23, 2021, 2:00 AM EDT
- Expired
- Apr 22, 2021, 3:59 AM EDT
- In force
- Issued by
- NWS Jackson, KY
Counties Bath County, KY, Breathitt County, KY, Elliott County, KY, Fleming County, KY, Floyd County, KY, Harlan County, KY, Johnson County, KY, Knott County, KY, Leslie County, KY, Letcher County, KY, Magoffin County, KY, Martin County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Rowan County, KY, Wolfe County, KY
The radar
The Jackson,KY radar (KJKL), 14 km from the middle of the area, began a volume at 19:32 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.6 hours before the alert went out and 199 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
- 624 m above ground
- 0-6 km bulk shear
- 69 kt
- 0-1 km storm-relative helicity
- -99 m²/s²
- 0-3 km storm-relative helicity
- 18 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
What forecasters said that day
The local office's own words before this freeze watch 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 freeze watch went out at Apr 21, 3:31 PM EDT, 2 minutes earlier.
Area forecast discussion, Apr 21, 3:31 PM EDT, 2 minutes before
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</html>Hazardous weather outlook, Apr 21, 5:02 AM EDT, 10 hours 31 minutes before
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</html>The office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 21, 3:27 AM EDT | Freeze Warning | JKL | Bath, Bell, Breathitt, Clay, Elliott, Estill and 27 more | 30 hr |
Nearby
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.