Alert archive / Kentucky / Severe Thunderstorm Warnings in 2009
Severe Thunderstorm Warning 121, NWS Jackson, KY
NWS Jackson, KY issued this severe thunderstorm warning at Jun 8, 2009, 3:05 PM EDT for Bell County, Knox County, Whitley County, Kentucky. It was in force for 55 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
- Jun 8, 2009, 3:05 PM EDT (19:05 UTC)
- Expired
- Jun 8, 2009, 4:00 PM EDT
- In force
- 55 min
- Issued by
- NWS Jackson, KY
- Area
- Storm-based polygon
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 19:04 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.1 hours before the alert went out and 293 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
- 331 J/kg
- Mixed-layer CIN
- -144 J/kg
- Mixed-layer LCL
- 1337 m above ground
- 0-6 km bulk shear
- 22 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 78 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.0
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 Jun 8, 2:58 PM EDT, 7 minutes earlier.
Area forecast discussion, Jun 8, 2:58 PM EDT, 7 minutes before
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</html>Hazardous weather outlook, Jun 8, 4:09 AM EDT, 10 hours 56 minutes before
HAZARDOUS WEATHER OUTLOOK NATIONAL WEATHER SERVICE JACKSON KY 409 AM EDT MON JUN 8 2009 KYZ044-050>052-058>060-068-069-079-080-083>088-104-106>120-091115- 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- 409 AM EDT MON JUN 8 2009 THIS HAZARDOUS WEATHER OUTLOOK IS FOR PORTIONS OF EASTERN KENTUCKY. .DAY ONE...TODAY AND TONIGHT. DUE TO THE VERY UNSTABLE AIRMASS OVER EASTERN KENTUCKY TODAY...THE THUNDERSTORMS THAT DEVELOP THIS AFTERNOON...HAVE THE POTENTIAL OF BECOMING SEVERE. THESE STORMS HAVE THE POTENTIAL FOR PRODUCING WIND GUSTS GREATER THAN 60 MPH AND HAIL LARGER THAN ONE INCH IN DIAMETER. ANY THUNDERSTORMS WILL BE ACCOMPANIED WILL DANGEROUS CLOUD TO GROUND LIGHTNING. THE THUNDERSTORMS TONIGHT ARE NOT EXPECTED TO BE STRONG. .DAYS TWO THROUGH SEVEN...TUESDAY THROUGH SUNDAY. STRONG THUNDERSTORMS ARE POSSIBLE ON TUESDAY AFTERNOON. THUNDERSTORMS ARE POSSIBLE FROM TUESDAY THROUGH FRIDAY NIGHT. .SPOTTER INFORMATION STATEMENT... SPOTTERS ARE ENCOURAGED TO REPORT ANY THUNDERSTORM WIND DAMAGE AND ANY LARGE HAIL TO THE JACKSON WEATHER OFFICE. JJ
In the hours before
Special weather statement, Jun 8, 2:02 PM EDT, 1 hour 3 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE JACKSON KY 202 PM EDT MON JUN 8 2009 KYZ106-108-081830- MORGAN-WOLFE- 202 PM EDT MON JUN 8 2009 ...A STRONG THUNDERSTORM TO AFFECT SOUTHWESTERN MORGAN AND NORTH CENTRAL WOLFE COUNTIES THROUGH 230 PM EDT MONDAY AFTERNOON... AT 202 PM EDT...A STRONG THUNDERSTORM WAS LOCATED NEAR STILLWATER... MOVING NORTHEAST AT 15 MPH. THIS STORM WILL BE NEAR TOLIVER AROUND 210 PM EDT...TOLIVER AROUND 215 PM EDT...HAZEL GREEN AROUND 220 PM EDT...DAYSBORO AROUND 225 PM EDT...SALEM AROUND 230 PM EDT. RESIDENTS SHOULD EXPECT VERY HEAVY RAIN...WITH RAINFALL RATES BETWEEN ONE AND TWO INCHES PER HOUR...GUSTY WINDS OF 30 TO 40 MPH...FREQUENT LIGHTNING AND SMALL HAIL IN THESE AREAS. THE HEAVY RAIN WILL LIKELY CAUSE PONDING OF WATER ON AREA ROADWAYS. MOTORISTS ARE URGED TO DRIVE CAREFULLY. RAY
Special weather statement, Jun 8, 2:17 PM EDT, 48 minutes before
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</html>Special weather statement, Jun 8, 2:27 PM EDT, 38 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 |
|---|---|---|---|---|
| Jun 8, 2:09 PM EDT | Severe Thunderstorm Warning | JKL | Morgan, Wolfe | 51 min |
| Jun 8, 2:39 PM EDT | Severe Thunderstorm Warning | JKL | Clay, Jackson, Laurel | 30 min |
Nearby
Severe Thunderstorm Warnings in Kentucky, 2009Every severe thunderstorm warning in 2009
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.