Alert archive / Kentucky / Winter Weather Advisories in 2021

Winter Weather Advisory 5, NWS Jackson, KY

January 26, 202133 counties in Kentucky

NWS Jackson, KY issued this winter weather advisory at Jan 26, 2021, 4:13 PM EST for 33 counties in Kentucky. It took effect at Jan 27, 2021, 4:00 PM EST. It was in force for 13 hr.

The area

The counties it named.

The facts

Issued: Jan 26, 2021, 4:13 PM EST (21:13 UTC)
In effect from: Jan 27, 2021, 4:00 PM EST
Expired: Jan 28, 2021, 5:22 AM EST
In force: 13 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 21:15 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, 9.2 hours before the alert went out and 361 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: 434 m above ground
0-6 km bulk shear: 85 kt
0-1 km storm-relative helicity: 221 m²/s²
0-3 km storm-relative helicity: 244 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

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 Jan 26, 2:35 PM EST, 1 hour 38 minutes earlier.

Area forecast discussion, Jan 26, 2:35 PM EST, 1 hour 38 minutes before

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Hazardous weather outlook, Jan 26, 11:50 AM EST, 4 hours 23 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
Jan 25, 7:09 PM EST	Special Weather Statement	JKL	Breathitt, Lee, Owsley	36 min
Jan 25, 8:56 PM EST	Areal Flood Advisory	JKL	Bath, Estill, Fleming, Menifee, Montgomery, Powell and 1 more	7 hr
Jan 25, 9:05 PM EST	Areal Flood Advisory	JKL	Clay, Jackson, Laurel, Owsley, Pulaski, Rockcastle	7 hr
Jan 25, 9:22 PM EST	Special Weather Statement	JKL	Knott	23 min
Jan 25, 9:24 PM EST	Special Weather Statement	JKL	Clay, Laurel	36 min
Jan 25, 9:45 PM EST	Special Weather Statement	JKL	Pike	30 min
Jan 25, 9:48 PM EST	Special Weather Statement	JKL	Lee	27 min
Jan 25, 9:51 PM EST	Special Weather Statement	JKL	McCreary	24 min
Jan 25, 9:58 PM EST	Severe Thunderstorm Warning	JKL	McCreary, Wayne, Whitley	47 min
Jan 25, 10:43 PM EST	Special Weather Statement	JKL	Bell, Whitley	32 min
Jan 25, 10:47 PM EST	Severe Thunderstorm Warning	JKL	Bell, Knox, McCreary, Whitley	43 min
Jan 25, 11:05 PM EST	Areal Flood Advisory	JKL	Bell, Knox, McCreary, Wayne, Whitley	5 hr
Jan 25, 11:11 PM EST	Areal Flood Advisory	JKL	Breathitt, Clay, Elliott, Estill, Floyd, Jackson and 14 more	7 hr
Jan 25, 11:18 PM EST	Special Weather Statement	JKL	Bell, Harlan	27 min
Jan 26, 2:56 AM EST	River Flood Advisory	JKL	Estill, Powell	47 hr
Jan 26, 3:04 AM EST	River Flood Advisory	JKL	Lee	49 hr
Jan 26, 3:07 AM EST	River Flood Warning	JKL	Estill	34 hr
Jan 26, 6:15 AM EST	River Flood Advisory	JKL	Owsley	18 hr
Jan 26, 9:45 AM EST	River Flood Advisory	JKL	Magoffin	14 hr

Nearby

Winter Weather Advisories in Kentucky, 2021 Every winter weather advisory in 2021

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.