Alert archive / Kentucky / Tornado Warnings in 2011
Tornado Warning 36, NWS Jackson, KY
NWS Jackson, KY issued this tornado warning at Aug 8, 2011, 3:48 PM EDT for Clay County, Knox County, Laurel County, Kentucky. It was in force for 16 min. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 8, 2011, 3:48 PM EDT (19:48 UTC)
- Expired
- Aug 8, 2011, 4:04 PM EDT
- In force
- 16 min
- Issued by
- NWS Jackson, KY
- Area
- Storm-based polygon
Counties Clay County, KY, Knox County, KY, Laurel County, KY
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.8 hours before the alert went out and 254 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
- 747 J/kg
- Mixed-layer CIN
- -31 J/kg
- Mixed-layer LCL
- 888 m above ground
- 0-6 km bulk shear
- 46 kt
- 0-1 km storm-relative helicity
- 109 m²/s²
- 0-3 km storm-relative helicity
- 145 m²/s²
- Significant tornado parameter
- 0.4
- Supercell composite
- 3.7
The text
As transmitted, in the capitals the NWS used until 2016.
426 WFUS53 KJKL 081948 TORJKL KYC051-121-125-082015- /O.NEW.KJKL.TO.W.0036.110808T1948Z-110808T2015Z/ BULLETIN - EAS ACTIVATION REQUESTED TORNADO WARNING NATIONAL WEATHER SERVICE JACKSON KY 348 PM EDT MON AUG 8 2011 THE NATIONAL WEATHER SERVICE IN JACKSON KY HAS ISSUED A * TORNADO WARNING FOR... WEST CENTRAL CLAY COUNTY IN SOUTHEAST KENTUCKY... EXTREME NORTH CENTRAL KNOX COUNTY IN SOUTHEAST KENTUCKY... EAST CENTRAL LAUREL COUNTY IN SOUTH CENTRAL KENTUCKY... * UNTIL 415 PM EDT * AT 345 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR LONDON...AND MOVING EAST AT 35 MPH. * THIS DANGEROUS STORM WILL BE NEAR... LESBAS...DEER LICK...LANGNAU AND CRAWFORD AROUND 355 PM EDT. MARYDELL...LIDA...CANE CREEK AND PORTERSBURG AROUND 400 PM EDT. BUSH...LAKE...SASSER AND BLACKWATER AROUND 405 PM EDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 3722 8385 3703 8387 3708 8414 3719 8412 TIME...MOT...LOC 1948Z 281DEG 32KT 3712 8405 $$ JACOBSON
2 follow-up statements
575 WWUS53 KJKL 081959 SVSJKL SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON KY 359 PM EDT MON AUG 8 2011 KYC051-121-125-082015- /O.CON.KJKL.TO.W.0036.000000T0000Z-110808T2015Z/ KNOX KY-CLAY KY-LAUREL KY- 359 PM EDT MON AUG 8 2011 ...A TORNADO WARNING REMAINS IN EFFECT FOR EAST CENTRAL LAUREL...WEST CENTRAL CLAY AND EXTREME NORTH CENTRAL KNOX COUNTIES UNTIL 415 PM EDT... AT 355 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A SEVERE THUNDERSTORM CAPABLE OF PRODUCING A TORNADO. THIS DANGEROUS STORM WAS LOCATED NEAR LESBAS...OR 6 MILES EAST OF LONDON...MOVING EAST AT 35 MPH. THIS DANGEROUS STORM WILL BE NEAR... BUSH...LAKE...SASSER AND BLACKWATER AROUND 405 PM EDT. PRECAUTIONARY/PREPAREDNESS ACTIONS... TAKE COVER NOW. MOVE TO AN INTERIOR ROOM ON THE LOWEST FLOOR OF A STURDY BUILDING. AVOID WINDOWS. IF IN A MOBILE HOME...A VEHICLE OR OUTDOORS...MOVE TO THE CLOSEST SUBSTANTIAL SHELTER AND PROTECT YOURSELF FROM FLYING DEBRIS. && LAT...LON 3707 8404 3721 8397 3722 8385 3703 8387 TIME...MOT...LOC 2000Z 281DEG 32KT 3710 8392 $$ GREIF
851 WWUS53 KJKL 082004 SVSJKL SEVERE WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON KY 404 PM EDT MON AUG 8 2011 KYC051-121-125-082014- /O.CAN.KJKL.TO.W.0036.000000T0000Z-110808T2015Z/ KNOX KY-CLAY KY-LAUREL KY- 404 PM EDT MON AUG 8 2011 ...THE TORNADO WARNING FOR EAST CENTRAL LAUREL...WEST CENTRAL CLAY AND EXTREME NORTH CENTRAL KNOX COUNTIES IS CANCELLED... THE STORM WHICH PROMPTED THE WARNING HAS WEAKENED BELOW SEVERE LIMITS...AND NO LONGER POSES AN IMMEDIATE THREAT TO LIFE OR PROPERTY...HOWEVER GUSTY WINDS ARE STILL POSSIBLE WITH THIS THUNDERSTORM. LAT...LON 3707 8404 3721 8397 3722 8385 3703 8387 TIME...MOT...LOC 2004Z 281DEG 32KT 3709 8388 $$ GREIF
The office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 8, 12:36 AM EDT | Areal Flood Advisory | JKL | Pike | 114 min |
| Aug 8, 2:08 AM EDT | Areal Flood Advisory | JKL | Martin | 112 min |
| Aug 8, 2:35 PM EDT | Severe Thunderstorm Warning | JKL | Estill, Jackson, Lee | 25 min |
| Aug 8, 2:58 PM EDT | Severe Thunderstorm Warning | JKL | Clay, Jackson, Laurel, Owsley, Rockcastle | 47 min |
| Aug 8, 3:11 PM EDT | Severe Thunderstorm Warning | JKL | Clay, Knox, Leslie | 34 min |
| Aug 8, 3:26 PM EDT | Severe Thunderstorm Warning | JKL | Laurel, Pulaski, Rockcastle | 34 min |
| Aug 8, 3:35 PM EDT | Severe Thunderstorm Warning | JKL | Breathitt, Floyd, Knott, Magoffin, Wolfe | 25 min |
| Aug 8, 3:46 PM EDT | Severe Thunderstorm Warning | JKL | Knox, Laurel, Whitley | 29 min |
| Aug 8, 4:13 PM EDT | Severe Thunderstorm Warning | JKL | Bell, Knox | 25 min |
| Aug 8, 4:20 PM EDT | Severe Thunderstorm Warning | JKL | Bell, Harlan | 25 min |
| Aug 8, 4:33 PM EDT | Severe Thunderstorm Warning | JKL | Elliott, Morgan | 24 min |
| Aug 8, 4:34 PM EDT | Areal Flood Advisory | JKL | Bell, Harlan, Knox, Leslie, Whitley | 98 min |
Nearby
Tornado Warnings in Kentucky, 2011Every tornado warning in 2011Tornadoes in 2011
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.