Alert archive / Kentucky / Severe Thunderstorm Warnings in 2014
Severe Thunderstorm Warning 20, NWS Jackson, KY
NWS Jackson, KY issued this severe thunderstorm warning at Apr 28, 2014, 2:29 PM EDT for Bell County, Knox County, Whitley County, Kentucky. It was in force for 46 min. 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 28, 2014, 2:29 PM EDT (18:29 UTC)
- Expired
- Apr 28, 2014, 3:15 PM EDT
- In force
- 46 min
- Issued by
- NWS Jackson, KY
- Area
- Storm-based polygon
- Hail
- 0.88 in
- Wind
- 60.0 mph
Counties Bell County, KY, Knox County, KY, Whitley County, KY
The radar
The Knoxville radar (KMRX), 82 km from the middle of the area, began a volume at 18:32 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, 6.5 hours before the alert went out and 253 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
- 267 J/kg
- Mixed-layer CIN
- -224 J/kg
- Mixed-layer LCL
- 707 m above ground
- 0-6 km bulk shear
- 51 kt
- 0-1 km storm-relative helicity
- 573 m²/s²
- 0-3 km storm-relative helicity
- 616 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 14.5
What forecasters said that day
The local office's own words before this severe thunderstorm 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 severe thunderstorm warning went out at Apr 28, 11:10 AM EDT, 3 hours 19 minutes earlier.
Area forecast discussion, Apr 28, 11:10 AM EDT, 3 hours 19 minutes before
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HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON KY 535 AM EDT MON APR 28 2014 KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-291245- FLEMING-MONTGOMERY-BATH-ROWAN-ESTILL-POWELL-MENIFEE-ROCKCASTLE- JACKSON-PULASKI-LAUREL-WAYNE-MCCREARY-WHITLEY-KNOX-BELL-HARLAN- ELLIOTT-MORGAN-JOHNSON-WOLFE-MAGOFFIN-FLOYD-LEE-BREATHITT-KNOTT- OWSLEY-PERRY-CLAY-LESLIE-LETCHER-MARTIN-PIKE- INCLUDING THE CITIES OF...FLEMINGSBURG...MOUNT STERLING... OWINGSVILLE...MOREHEAD...IRVINE...STANTON...FRENCHBURG... MOUNT VERNON...MCKEE...SOMERSET...LONDON...MONTICELLO... WHITLEY CITY...CORBIN...WILLIAMSBURG...BARBOURVILLE...MIDDLESBORO... PINEVILLE...HARLAN...SANDY HOOK...WEST LIBERTY...PAINTSVILLE... CAMPTON...SALYERSVILLE...PRESTONSBURG...BEATTYVILLE...JACKSON... HINDMAN...BOONEVILLE...HAZARD...MANCHESTER...HYDEN...WHITESBURG... INEZ...PIKEVILLE 535 AM EDT MON APR 28 2014 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN KENTUCKY. .DAY ONE...TODAY AND TONIGHT. THUNDERSTORMS WILL BE POSSIBLE TODAY AND TONIGHT. SOME STORMS MAY BE SEVERE LATE TODAY INTO TONIGHT. THE MAIN THREAT FROM THE STORMS WILL BE DAMAGING WINDS AND LARGE HAIL. HOWEVER...AN ISOLATED TORNADO CAN NOT BE RULED OUT. IN ADDITION...HEAVY RAINS WILL BE POSSIBLE LATER TODAY AND TONIGHT. FROM THIS...ISOLATED FLASH FLOODING COULD DEVELOP. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. THUNDERSTORMS WILL BE POSSIBLE FROM TUESDAY MORNING THROUGH WEDNESDAY. STRONG TO SEVERE THUNDERSTORMS WILL BE POSSIBLE AT TIMES TUESDAY THROUGH TUESDAY NIGHT. IN ADDITION...HEAVY RAINS WILL BE POSSIBLE FROM TUESDAY THROUGH TUESDAY NIGHT. FROM THIS...LOCALIZED HIGH WATER ISSUES COULD DEVELOP. .SPOTTER INFORMATION STATEMENT... SPOTTER ACTIVATION MAY BE NEEDED FOR STORM REPORTS LATE TODAY THROUGH TUESDAY NIGHT. SHALLENBERGER
In the hours before
Local storm report, Apr 28, 9:00 AM EDT, 5 hours 29 minutes before
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</html>Local storm report, Apr 28, 10:24 AM EDT, 4 hours 5 minutes before
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</html>Special weather statement, Apr 28, 1:15 PM EDT, 1 hour 14 minutes before
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</html>Special weather statement, Apr 28, 1:25 PM EDT, 1 hour 4 minutes before
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</html>Special weather statement, Apr 28, 2:07 PM EDT, 22 minutes before
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</html>The office that day
Everything else NWS Jackson, KY issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 28, 3:02 PM EDT | Severe Thunderstorm Warning | JKL | Bell, Clay, Harlan, Leslie, Letcher, Perry | 43 min |
| Apr 28, 3:57 PM EDT | Severe Thunderstorm Warning | JKL | Harlan, Letcher | 33 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 2014Every severe thunderstorm warning in 2014
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.