Alert archive / Kentucky / Frost Advisories in 2021
Frost Advisory 3, NWS Jackson, KY
NWS Jackson, KY issued this frost advisory at Apr 22, 2021, 3:59 AM EDT for 6 counties in Kentucky. It took effect at Apr 23, 2021, 2:00 AM EDT. It was in force for 7 hr.
The area
The counties it named.
The facts
- Issued
- Apr 22, 2021, 3:59 AM EDT (07:59 UTC)
- In effect from
- Apr 23, 2021, 2:00 AM EDT
- Expired
- Apr 23, 2021, 9:00 AM EDT
- In force
- 7 hr
- Issued by
- NWS Jackson, KY
Counties Laurel County, KY, McCreary County, KY, Pulaski County, KY, Rockcastle County, KY, Wayne County, KY, Whitley County, KY
The radar
The Jackson,KY radar (KJKL), 119 km from the middle of the area, began a volume at 08:02 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
Nashville Metro, TN (KBNA), launched 00:00Z, 8.0 hours before the alert went out and 217 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
- 1 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 2033 m above ground
- 0-6 km bulk shear
- 102 kt
- 0-1 km storm-relative helicity
- -8 m²/s²
- 0-3 km storm-relative helicity
- -4 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
024 WWUS73 KJKL 220759 NPWJKL URGENT - WEATHER MESSAGE National Weather Service Jackson KY 359 AM EDT Thu Apr 22 2021 KYZ044-050>052-059-060-088-104-106>110-112-113-115-117>120-221400- /O.UPG.KJKL.FZ.A.0003.210423T0600Z-210423T1200Z/ /O.NEW.KJKL.FZ.W.0005.210423T0600Z-210423T1200Z/ /O.CON.KJKL.FZ.W.0004.000000T0000Z-210422T1400Z/ Fleming-Montgomery-Bath-Rowan-Powell-Menifee-Harlan-Elliott- Morgan-Johnson-Wolfe-Magoffin-Floyd-Breathitt-Knott-Perry-Leslie- Letcher-Martin-Pike- Including the cities of Flemingsburg, Camargo, Jeffersonville, Mount Sterling, Owingsville, Morehead, Clay City, Stanton, Frenchburg, Cumberland, Harlan, Sandy Hook, West Liberty, Paintsville, Campton, Salyersville, Prestonsburg, Wheelwright, Jackson, Hindman, Pippa Passes, Hazard, Hyden, Jenkins, Whitesburg, Inez, Coal Run, Elkhorn City, Pikeville, and South Williamson 359 AM EDT Thu Apr 22 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM EDT THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY... * WHAT...For the first Freeze Warning, sub-freezing temperatures as low as the mid 20s are expected early this morning. For the second Freeze Warning, sub-freezing temperatures as low as 29 are expected. * WHERE...Portions of east central, northeast and southeast Kentucky. * WHEN...For the first Freeze Warning, until 10 AM EDT this morning. For the second Freeze Warning, from 2 AM to 8 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ KYZ058-069-086-087-111-114-116-221400- /O.NEW.KJKL.FZ.W.0005.210423T0600Z-210423T1200Z/ /O.CON.KJKL.FZ.W.0004.000000T0000Z-210422T1400Z/ Estill-Jackson-Knox-Bell-Lee-Owsley-Clay- Including the cities of Irvine, Ravenna, McKee, Annville, Barbourville, Middlesboro, Pineville, Beattyville, Booneville, and Manchester 359 AM EDT Thu Apr 22 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM EDT THIS MORNING... ...FREEZE WARNING IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY... * WHAT...For the first Freeze Warning, sub-freezing temperatures as low as the mid 20s are expected early this morning. For the second Freeze Warning, sub-freezing temperatures as low as the upper 20s are expected. * WHERE...Estill, Jackson, Knox, Bell, Lee, Owsley and Clay Counties. * WHEN...For the first Freeze Warning, until 10 AM EDT this morning. For the second Freeze Warning, from 2 AM to 8 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ KYZ068-079-080-083>085-221400- /O.NEW.KJKL.FR.Y.0003.210423T0600Z-210423T1200Z/ /O.CON.KJKL.FZ.W.0004.000000T0000Z-210422T1400Z/ Rockcastle-Pulaski-Laurel-Wayne-McCreary-Whitley- Including the cities of Brodhead, Mount Vernon, Burnside, Somerset, London, Monticello, Stearns, Whitley City, Corbin, and Williamsburg 359 AM EDT Thu Apr 22 2021 ...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM EDT THIS MORNING... ...FROST ADVISORY IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY... * WHAT...For the Freeze Warning, sub-freezing temperatures as low as the upper 20s are expected early this morning. For the Frost Advisory, temperatures as low as the lower 30s will result in frost formation. * WHERE...Rockcastle, Pulaski, Laurel, Wayne, McCreary and Whitley Counties. * WHEN...For the Freeze Warning, until 10 AM EDT this morning. For the Frost Advisory, from 2 AM to 8 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ GEOGERIAN
5 follow-up statements
100 WWUS73 KJKL 221330 NPWJKL URGENT - WEATHER MESSAGE National Weather Service Jackson KY 930 AM EDT Thu Apr 22 2021 KYZ044-050>052-058>060-069-086>088-104-106>120-222130- /O.CAN.KJKL.FZ.W.0004.000000T0000Z-210422T1400Z/ /O.CON.KJKL.FZ.W.0005.210423T0600Z-210423T1200Z/ Fleming-Montgomery-Bath-Rowan-Estill-Powell-Menifee-Jackson-Knox- Bell-Harlan-Elliott-Morgan-Johnson-Wolfe-Magoffin-Floyd-Lee- Breathitt-Knott-Owsley-Perry-Clay-Leslie-Letcher-Martin-Pike- Including the cities of Flemingsburg, Camargo, Jeffersonville, Mount Sterling, Owingsville, Morehead, Irvine, Ravenna, Clay City, Stanton, Frenchburg, McKee, Annville, Barbourville, Middlesboro, Pineville, Cumberland, Harlan, Sandy Hook, West Liberty, Paintsville, Campton, Salyersville, Prestonsburg, Wheelwright, Beattyville, Jackson, Hindman, Pippa Passes, Booneville, Hazard, Manchester, Hyden, Jenkins, Whitesburg, Inez, Coal Run, Elkhorn City, Pikeville, and South Williamson 930 AM EDT Thu Apr 22 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY... ...FREEZE WARNING THAT WAS IN EFFECT THROUGH 10 AM EDT THIS MORNING IS CANCELLED... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...Portions of east central, northeast and southeast Kentucky. * WHEN...From 2 AM to 8 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ KYZ068-079-080-083>085-222130- /O.CAN.KJKL.FZ.W.0004.000000T0000Z-210422T1400Z/ /O.CON.KJKL.FR.Y.0003.210423T0600Z-210423T1200Z/ Rockcastle-Pulaski-Laurel-Wayne-McCreary-Whitley- Including the cities of Brodhead, Mount Vernon, Burnside, Somerset, London, Monticello, Stearns, Whitley City, Corbin, and Williamsburg 930 AM EDT Thu Apr 22 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY... ...FREEZE WARNING THAT WAS IN EFFECT THROUGH 10 AM EDT THIS MORNING IS CANCELLED... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Pulaski, Laurel, Wayne, McCreary, Whitley and Rockcastle Counties. * WHEN...From 2 AM to 8 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ BB/JP
901 WWUS73 KJKL 222006 NPWJKL URGENT - WEATHER MESSAGE National Weather Service Jackson KY 406 PM EDT Thu Apr 22 2021 KYZ044-050>052-058>060-069-086>088-104-106>120-230500- /O.CON.KJKL.FZ.W.0005.210423T0600Z-210423T1200Z/ Fleming-Montgomery-Bath-Rowan-Estill-Powell-Menifee-Jackson-Knox- Bell-Harlan-Elliott-Morgan-Johnson-Wolfe-Magoffin-Floyd-Lee- Breathitt-Knott-Owsley-Perry-Clay-Leslie-Letcher-Martin-Pike- Including the cities of Flemingsburg, Camargo, Jeffersonville, Mount Sterling, Owingsville, Morehead, Irvine, Ravenna, Clay City, Stanton, Frenchburg, McKee, Annville, Barbourville, Middlesboro, Pineville, Cumberland, Harlan, Sandy Hook, West Liberty, Paintsville, Campton, Salyersville, Prestonsburg, Wheelwright, Beattyville, Jackson, Hindman, Pippa Passes, Booneville, Hazard, Manchester, Hyden, Jenkins, Whitesburg, Inez, Coal Run, Elkhorn City, Pikeville, and South Williamson 406 PM EDT Thu Apr 22 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 29 expected. * WHERE...Portions of east central, northeast and southeast Kentucky. * WHEN...From 2 AM to 8 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. To prevent freezing and possible bursting of outdoor water pipes they should be wrapped, drained, or allowed to drip slowly. Those that have in-ground sprinkler systems should drain them and cover above- ground pipes to protect them from freezing. && $$ KYZ068-079-080-083>085-230500- /O.CON.KJKL.FR.Y.0003.210423T0600Z-210423T1200Z/ Rockcastle-Pulaski-Laurel-Wayne-McCreary-Whitley- Including the cities of Brodhead, Mount Vernon, Burnside, Somerset, London, Monticello, Stearns, Whitley City, Corbin, and Williamsburg 406 PM EDT Thu Apr 22 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY... * WHAT...Temperatures as low as 33 will result in frost formation. * WHERE...Pulaski, Laurel, Wayne, McCreary, Whitley and Rockcastle Counties. * WHEN...From 2 AM to 8 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ BB/JP
884 WWUS73 KJKL 230220 AAA NPWJKL URGENT - WEATHER MESSAGE...UPDATED National Weather Service Jackson KY 1020 PM EDT Thu Apr 22 2021 KYZ044-050>052-058>060-069-086>088-104-106>120-231200- /O.CON.KJKL.FZ.W.0005.210423T0600Z-210423T1200Z/ Fleming-Montgomery-Bath-Rowan-Estill-Powell-Menifee-Jackson-Knox- Bell-Harlan-Elliott-Morgan-Johnson-Wolfe-Magoffin-Floyd-Lee- Breathitt-Knott-Owsley-Perry-Clay-Leslie-Letcher-Martin-Pike- Including the cities of Flemingsburg, Camargo, Jeffersonville, Mount Sterling, Owingsville, Morehead, Irvine, Ravenna, Clay City, Stanton, Frenchburg, McKee, Annville, Barbourville, Middlesboro, Pineville, Cumberland, Harlan, Sandy Hook, West Liberty, Paintsville, Campton, Salyersville, Prestonsburg, Wheelwright, Beattyville, Jackson, Hindman, Pippa Passes, Booneville, Hazard, Manchester, Hyden, Jenkins, Whitesburg, Inez, Coal Run, Elkhorn City, Pikeville, and South Williamson 1020 PM EDT Thu Apr 22 2021 ...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY... * WHAT...Sub-freezing temperatures as low as 29 degrees expected. * WHERE...Portions of east central, northeast and southeast Kentucky. * WHEN...From 2 AM to 8 AM EDT Friday. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ KYZ068-079-080-083>085-231200- /O.CON.KJKL.FR.Y.0003.210423T0600Z-210423T1200Z/ Rockcastle-Pulaski-Laurel-Wayne-McCreary-Whitley- Including the cities of Brodhead, Mount Vernon, Burnside, Somerset, London, Monticello, Stearns, Whitley City, Corbin, and Williamsburg 1020 PM EDT Thu Apr 22 2021 ...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 8 AM EDT FRIDAY... * WHAT...Temperatures as low as 33 degrees will result in frost formation. * WHERE...Pulaski, Laurel, Wayne, McCreary, Whitley and Rockcastle Counties. * WHEN...From 2 AM to 8 AM EDT Friday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold. && $$ JP/GREIF
797 WWUS73 KJKL 230816 NPWJKL URGENT - WEATHER MESSAGE National Weather Service Jackson KY 416 AM EDT Fri Apr 23 2021 KYZ044-050>052-058>060-069-086>088-104-106>120-231300- /O.EXT.KJKL.FZ.W.0005.000000T0000Z-210423T1300Z/ Fleming-Montgomery-Bath-Rowan-Estill-Powell-Menifee-Jackson-Knox- Bell-Harlan-Elliott-Morgan-Johnson-Wolfe-Magoffin-Floyd-Lee- Breathitt-Knott-Owsley-Perry-Clay-Leslie-Letcher-Martin-Pike- Including the cities of Flemingsburg, Camargo, Jeffersonville, Mount Sterling, Owingsville, Morehead, Irvine, Ravenna, Clay City, Stanton, Frenchburg, McKee, Annville, Barbourville, Middlesboro, Pineville, Cumberland, Harlan, Sandy Hook, West Liberty, Paintsville, Campton, Salyersville, Prestonsburg, Wheelwright, Beattyville, Jackson, Hindman, Pippa Passes, Booneville, Hazard, Manchester, Hyden, Jenkins, Whitesburg, Inez, Coal Run, Elkhorn City, Pikeville, and South Williamson 416 AM EDT Fri Apr 23 2021 ...FREEZE WARNING NOW IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...This morning's low temperatures will bottom out at 25 to 30 degrees in most locations. Ridges will be a little warmer, generally in the lower 30s. * WHERE...Portions of east central, northeast and southeast Kentucky. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost and freeze conditions will kill crops and other sensitive vegetation. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps to protect sensitive plants from the cold. && $$ KYZ068-079-080-083>085-231300- /O.EXT.KJKL.FR.Y.0003.000000T0000Z-210423T1300Z/ Rockcastle-Pulaski-Laurel-Wayne-McCreary-Whitley- Including the cities of Brodhead, Mount Vernon, Burnside, Somerset, London, Monticello, Stearns, Whitley City, Corbin, and Williamsburg 416 AM EDT Fri Apr 23 2021 ...FROST ADVISORY NOW IN EFFECT UNTIL 9 AM EDT THIS MORNING... * WHAT...This morning's low temperatures will bottom out in the upper 20s to mid 30s, resulting in frost over much of the area. * WHERE...Pulaski, Laurel, Wayne, McCreary, Whitley and Rockcastle Counties. * WHEN...Until 9 AM EDT this morning. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps to protect sensitive plants from the cold. && $$ HAL
039 WWUS73 KJKL 231257 NPWJKL URGENT - WEATHER MESSAGE National Weather Service Jackson KY 857 AM EDT Fri Apr 23 2021 KYZ044-050>052-058>060-069-086>088-104-106>120-231400- /O.EXP.KJKL.FZ.W.0005.000000T0000Z-210423T1300Z/ Fleming-Montgomery-Bath-Rowan-Estill-Powell-Menifee-Jackson-Knox- Bell-Harlan-Elliott-Morgan-Johnson-Wolfe-Magoffin-Floyd-Lee- Breathitt-Knott-Owsley-Perry-Clay-Leslie-Letcher-Martin-Pike- Including the cities of Flemingsburg, Camargo, Jeffersonville, Mount Sterling, Owingsville, Morehead, Irvine, Ravenna, Clay City, Stanton, Frenchburg, McKee, Annville, Barbourville, Middlesboro, Pineville, Cumberland, Harlan, Sandy Hook, West Liberty, Paintsville, Campton, Salyersville, Prestonsburg, Wheelwright, Beattyville, Jackson, Hindman, Pippa Passes, Booneville, Hazard, Manchester, Hyden, Jenkins, Whitesburg, Inez, Coal Run, Elkhorn City, Pikeville, and South Williamson 857 AM EDT Fri Apr 23 2021 ...FREEZE WARNING WILL EXPIRE AT 9 AM EDT THIS MORNING... Temperatures are rising above freezing in all locations, thus the Freeze Warning will be allowed to expire at 9 AM EDT. $$ KYZ068-079-080-083>085-231400- /O.EXP.KJKL.FR.Y.0003.000000T0000Z-210423T1300Z/ Rockcastle-Pulaski-Laurel-Wayne-McCreary-Whitley- Including the cities of Brodhead, Mount Vernon, Burnside, Somerset, London, Monticello, Stearns, Whitley City, Corbin, and Williamsburg 857 AM EDT Fri Apr 23 2021 ...FROST ADVISORY WILL EXPIRE AT 9 AM EDT THIS MORNING... Temperatures have warmed above freezing in all locations, thus the Frost Advisory will be allowed to expire at 9 AM EDT. $$ BB/JP
The office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 22, 3:59 AM EDT | Freeze Warning | JKL | Bath, Bell, Breathitt, Clay, Elliott, Estill and 21 more | 29 hr |
Nearby
Frost Advisories in Kentucky, 2021Every frost 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.