Alert archive / Kentucky / Freeze Warnings in 2018

Freeze Warning 1, NWS Jackson, KY

April 4, 201833 counties in Kentucky

NWS Jackson, KY issued this freeze warning at Apr 4, 2018, 3:49 PM EDT for 33 counties in Kentucky. It took effect at Apr 5, 2018, 2:00 AM EDT. It was in force for 8 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Apr 4, 2018, 3:49 PM EDT (19:49 UTC)
In effect from: Apr 5, 2018, 2:00 AM EDT
Expired: Apr 5, 2018, 10:00 AM EDT
In force: 8 hr
Issued by: NWS Jackson, KY

All 33 counties

Bath County, KY, Bell County, KY, Breathitt County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Fleming County, KY, Floyd County, KY, Harlan County, KY, Jackson County, KY, Johnson County, KY, Knott County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Magoffin County, KY, Martin County, KY, McCreary County, KY, Menifee County, KY, Montgomery County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Rockcastle County, KY, Rowan County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY

The radar

The Jackson,KY radar (KJKL), 26 km from the middle of the area, began a volume at 19:45 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, 7.8 hours before the alert went out and 309 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.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 1223 m above ground
0-6 km bulk shear: 79 kt
0-1 km storm-relative helicity: -56 m²/s²
0-3 km storm-relative helicity: -43 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freeze warning 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 warning went out at Apr 4, 2:49 PM EDT, 1 hour earlier.

Area forecast discussion, Apr 4, 2:49 PM EDT, 1 hour before

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Hazardous weather outlook, Apr 4, 5:25 AM EDT, 10 hours 24 minutes before

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In the hours before

Local storm report, Apr 4, 11:31 AM EDT, 4 hours 18 minutes before

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Local storm report, Apr 4, 11:33 AM EDT, 4 hours 16 minutes before

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Local storm report, Apr 4, 11:35 AM EDT, 4 hours 14 minutes before

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Local storm report, Apr 4, 11:37 AM EDT, 4 hours 12 minutes before

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Local storm report, Apr 4, 11:53 AM EDT, 3 hours 56 minutes before

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Local storm report, Apr 4, 3:04 PM EDT, 45 minutes before

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The office that day

Everything else NWS Jackson, KY issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 3, 10:02 PM EDT	Severe Thunderstorm Warning	JKL	Estill, Jackson, Rockcastle	43 min
Apr 3, 10:12 PM EDT	Severe Thunderstorm Warning	JKL	Bath, Estill, Lee, Menifee, Montgomery, Powell and 1 more	48 min
Apr 3, 10:14 PM EDT	Special Weather Statement	JKL	Bath, Montgomery	31 min
Apr 3, 10:25 PM EDT	Tornado Warning	JKL	Jackson, Rockcastle	18 min
Apr 3, 10:33 PM EDT	Severe Thunderstorm Warning	JKL	Jackson, Lee, Owsley, Rockcastle	42 min
Apr 3, 10:53 PM EDT	Severe Thunderstorm Warning	JKL	Elliott, Magoffin, Menifee, Morgan, Powell, Wolfe	37 min
Apr 3, 11:06 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Knott, Lee, Magoffin, Owsley, Wolfe	39 min
Apr 3, 11:28 PM EDT	Special Weather Statement	JKL	Johnson, Morgan	32 min
Apr 3, 11:35 PM EDT	Special Weather Statement	JKL	Owsley	25 min
Apr 3, 11:44 PM EDT	Severe Thunderstorm Warning	JKL	Breathitt, Floyd, Johnson, Magoffin, Wolfe	31 min
Apr 3, 11:56 PM EDT	Special Weather Statement	JKL	Owsley	34 min
Apr 4, 12:01 AM EDT	Areal Flood Advisory	JKL	Estill, Jackson, Laurel, Lee, Owsley, Powell and 2 more	3 hr
Apr 4, 12:04 AM EDT	Severe Thunderstorm Warning	JKL	Bell, Knox, Laurel, McCreary, Wayne, Whitley	41 min
Apr 4, 12:13 AM EDT	Special Weather Statement	JKL	Johnson, Martin	47 min
Apr 4, 12:27 AM EDT	Special Weather Statement	JKL	Breathitt	48 min
Apr 4, 12:30 AM EDT	Severe Thunderstorm Warning	JKL	Clay, Knox, Laurel, Leslie, Perry	30 min
Apr 4, 12:41 AM EDT	Severe Thunderstorm Warning	JKL	Bell, Clay, Harlan, Knox, Leslie, Whitley	49 min
Apr 4, 12:59 AM EDT	Severe Thunderstorm Warning	JKL	Clay, Floyd, Knott, Leslie, Perry	46 min
Apr 4, 1:14 AM EDT	Severe Thunderstorm Warning	JKL	Harlan, Leslie, Letcher, Perry, Pike	61 min
Apr 4, 1:32 AM EDT	Severe Thunderstorm Warning	JKL	Floyd, Knott, Pike	58 min
Apr 4, 3:08 AM EDT	River Flood Advisory	JKL	Lee	52 hr

Nearby

Freeze Warnings in Kentucky, 2018 Every freeze warning in 2018

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.