Alert archive / Kentucky / Severe Thunderstorm Warnings in 2021
Severe Thunderstorm Warning 102, NWS Jackson, KY
NWS Jackson, KY issued this severe thunderstorm warning at Dec 11, 2021, 6:30 AM EST for 6 counties in Kentucky. It was in force for 30 min. 6 reports came from inside the area while it was in force.
The area
The outline as issued, with what was reported inside it.
The facts
- Issued
- Dec 11, 2021, 6:30 AM EST (11:30 UTC)
- Expired
- Dec 11, 2021, 7:00 AM EST
- In force
- 30 min
- Issued by
- NWS Jackson, KY
- Area
- Storm-based polygon
- Hail
- 0.75 in
- Wind
- 60.0 mph
Counties Clay County, KY, Knox County, KY, Laurel County, KY, McCreary County, KY, Pulaski County, KY, Whitley County, KY
The radar
The Jackson,KY radar (KJKL), 94 km from the middle of the area, began a volume at 11:34 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.
What was reported inside it
| Time | Report | Where | Remark |
|---|---|---|---|
| Dec 11, 6:31 AM EST | TSTM WND DMG | 1 W Pine Knot, KY | TREE REPORTED DOWN ON ROUND TOP RD. TIME ESTIMATED FROM RADAR. |
| Dec 11, 6:32 AM EST | TSTM WND DMG | 2 Ene Strunk, KY | TREE REPORTED DOWN ON MURPHY RIDGE ROAD. TIME ESTIMATED FROM RADAR. |
| Dec 11, 6:35 AM EST | TSTM WND DMG | 4 Ne Pine Knot, KY | TREE BLOCKING LAUREL CEMETERY ROAD. TIME ESTIMATED FROM RADAR. |
| Dec 11, 6:44 AM EST | TSTM WND DMG | Keavy, KY | 2 TREES WERE BLOWN DOWN IN THE KEAVY COMMUNITY. |
| Dec 11, 6:44 AM EST | TSTM WND DMG | Rye, KY | TREES ON POWERLINES ALONG HIGHTOP ROAD. TIME ESTIMATED FROM RADAR. |
| Dec 11, 6:45 AM EST | TSTM WND GST 44 | 1 S Clio, KY | MEASURED AT KBYL AWOS. TIME OF THE EVENT IS ESTIMATED FROM RADAR. |
Local storm reports filed while the alert was in force, from inside its polygon or its counties.
The watch it was issued in
The SPC watch in force over the same counties when this warning went out.
| Issued | Product | Office | Lasted |
|---|---|---|---|
| Dec 11, 2:27 AM EST | Tornado Watch | SPC | 7 hr |
The nearest sounding before it
Nashville Metro, TN (KBNA), launched 00:00Z, 11.5 hours before the alert went out and 247 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
- 182 J/kg
- Mixed-layer CIN
- -168 J/kg
- Mixed-layer LCL
- 593 m above ground
- 0-6 km bulk shear
- 58 kt
- 0-1 km storm-relative helicity
- 391 m²/s²
- 0-3 km storm-relative helicity
- 370 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.5
The text
As transmitted.
699 WUUS53 KJKL 111130 SVRJKL KYC051-121-125-147-199-235-111200- /O.NEW.KJKL.SV.W.0102.211211T1130Z-211211T1200Z/ BULLETIN - IMMEDIATE BROADCAST REQUESTED Severe Thunderstorm Warning National Weather Service JACKSON KY 630 AM EST Sat Dec 11 2021 The National Weather Service in JACKSON KY has issued a * Severe Thunderstorm Warning for... Laurel County in south central Kentucky... Western Knox County in southeastern Kentucky... Southeastern Pulaski County in south central Kentucky... McCreary County in south central Kentucky... Whitley County in south central Kentucky... Western Clay County in southeastern Kentucky... * Until 700 AM EST. * At 630 AM EST, severe thunderstorms were located along a line extending from Eberle to near Duckrun, moving northeast at 85 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. * Severe thunderstorms will be near... Walden around 640 AM EST. Wilton around 645 AM EST. Garrich around 650 AM EST. Other locations in the path of these severe thunderstorms include Haven and House. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 900 AM EST for south central Kentucky. For your protection move to an interior room on the lowest floor of a building. Intense thunderstorm lines can produce brief tornadoes and widespread significant wind damage. Although a tornado is not immediately likely, it is best to move to an interior room on the lowest floor of a building. These storms may cause serious injury and significant property damage. A Tornado Watch remains in effect until 900 AM EST for south central Kentucky. && LAT...LON 3731 8363 3660 8398 3660 8465 3711 8436 TIME...MOT...LOC 1130Z 237DEG 73KT 3730 8409 3674 8436 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ GEERTSON
1 follow-up statement
086 WWUS53 KJKL 111149 SVSJKL Severe Weather Statement National Weather Service JACKSON KY 649 AM EST Sat Dec 11 2021 KYC199-111159- /O.CAN.KJKL.SV.W.0102.000000T0000Z-211211T1200Z/ Pulaski KY- 649 AM EST Sat Dec 11 2021 ...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN PULASKI COUNTY IS CANCELLED... The storms which prompted the warning have moved out of the warned area. Therefore, the warning has been cancelled. A Tornado Watch remains in effect until 900 AM EST for south central Kentucky. LAT...LON 3731 8363 3660 8398 3660 8456 3714 8422 TIME...MOT...LOC 1149Z 257DEG 46KT 3723 8376 3662 8419 $$ KYC051-121-125-147-235-111200- /O.CON.KJKL.SV.W.0102.000000T0000Z-211211T1200Z/ Laurel KY-Knox KY-McCreary KY-Whitley KY-Clay KY- 649 AM EST Sat Dec 11 2021 ...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 700 AM EST FOR LAUREL...WESTERN KNOX...EASTERN MCCREARY...WHITLEY AND WESTERN CLAY COUNTIES... At 649 AM EST, severe thunderstorms were located along a line extending from Laurel Creek to near Ayers, moving east at 55 mph. HAZARD...60 mph wind gusts. SOURCE...Radar indicated. IMPACT...Expect damage to roofs, siding, and trees. Locations impacted include... Hensley, Gatliff and Goins. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Tornado Watch remains in effect until 900 AM EST for south central Kentucky. For your protection move to an interior room on the lowest floor of a building. Intense thunderstorm lines can produce brief tornadoes and widespread significant wind damage. Although a tornado is not immediately likely, it is best to move to an interior room on the lowest floor of a building. These storms may cause serious injury and significant property damage. && LAT...LON 3731 8363 3660 8398 3660 8456 3714 8422 TIME...MOT...LOC 1149Z 257DEG 46KT 3723 8376 3662 8419 HAIL THREAT...RADAR INDICATED MAX HAIL SIZE...<.75 IN WIND THREAT...RADAR INDICATED MAX WIND GUST...60 MPH $$ GEERTSON
The office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 11, 4:45 AM EST | Severe Thunderstorm Warning | JKL | Bath, Estill, Menifee, Montgomery, Powell | 30 min |
| Dec 11, 4:55 AM EST | Severe Thunderstorm Warning | JKL | Bath, Fleming, Menifee, Rowan | 35 min |
| Dec 11, 5:13 AM EST | Tornado Warning | JKL | Estill, Lee, Montgomery, Powell | 17 min |
| Dec 11, 5:27 AM EST | Severe Thunderstorm Warning | JKL | Estill, Menifee, Montgomery, Morgan, Powell, Rowan and 1 more | 48 min |
| Dec 11, 5:43 AM EST | Tornado Warning | JKL | Estill, Powell | 32 min |
| Dec 11, 5:49 AM EST | Severe Thunderstorm Warning | JKL | McCreary, Pulaski, Wayne, Whitley | 41 min |
| Dec 11, 5:56 AM EST | Tornado Warning | JKL | McCreary, Wayne | 19 min |
| Dec 11, 6:08 AM EST | Areal Flood Advisory | JKL | Estill, Menifee, Montgomery, Powell | 3 hr |
| Dec 11, 6:17 AM EST | Special Weather Statement | JKL | Elliott, Menifee, Morgan, Powell, Rowan | 58 min |
| Dec 11, 6:38 AM EST | Severe Thunderstorm Warning | JKL | Bath, Estill, Jackson, Menifee, Montgomery, Powell and 3 more | 37 min |
| Dec 11, 6:53 AM EST | Tornado Warning | JKL | Knox, Whitley | 22 min |
| Dec 11, 6:58 AM EST | Severe Thunderstorm Warning | JKL | Bell, Clay, Jackson, Knox, Laurel, Leslie and 4 more | 32 min |
| Dec 11, 7:08 AM EST | Severe Thunderstorm Warning | JKL | Bath, Estill, Jackson, Lee, Menifee, Morgan and 4 more | 37 min |
| Dec 11, 7:24 AM EST | Severe Thunderstorm Warning | JKL | Bell, Clay, Harlan, Knox, Leslie, Letcher and 2 more | 51 min |
| Dec 11, 7:39 AM EST | Severe Thunderstorm Warning | JKL | Breathitt, Elliott, Lee, Magoffin, Morgan, Owsley and 2 more | 36 min |
| Dec 11, 7:42 AM EST | Areal Flood Advisory | JKL | McCreary, Whitley | 3 hr |
| Dec 11, 8:04 AM EST | Special Weather Statement | JKL | Johnson, Magoffin, Martin | 26 min |
| Dec 11, 8:15 AM EST | Severe Thunderstorm Warning | JKL | Bell, Knox, Whitley | 30 min |
| Dec 11, 8:20 AM EST | Flash Flood Warning | JKL | McCreary, Whitley | 3 hr |
| Dec 11, 8:45 AM EST | Severe Thunderstorm Warning | JKL | Bell, Harlan, Knox, Leslie, Whitley | 30 min |
| Dec 11, 9:14 AM EST | Areal Flood Warning | JKL | Powell | 3 hr |
| Dec 11, 9:15 AM EST | Special Weather Statement | JKL | Bell, Harlan, Letcher, Pike | 45 min |
| Dec 11, 9:57 AM EST | Special Weather Statement | JKL | Harlan | 33 min |
| Dec 11, 12:06 PM EST | Special Weather Statement | JKL | Bath, Estill, Fleming, Jackson, Menifee, Montgomery and 3 more | 39 min |
| Dec 11, 12:45 PM EST | Special Weather Statement | JKL | Bath, Elliott, Estill, Jackson, Lee, Menifee and 7 more | 45 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 2021Every severe thunderstorm warning 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; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.