Alert archive / Kentucky / Severe Thunderstorm Warnings in 2022

Severe Thunderstorm Warning 215, NWS Louisville, KY

July 17, 2022Clark County, Madison County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Jul 17, 2022, 4:50 PM EDT for Clark County, Madison County, Kentucky. It was in force for 13 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
Jul 17, 2022, 4:50 PM EDT (20:50 UTC)
Expired
Jul 17, 2022, 5:03 PM EDT
In force
13 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
0.75 in
Wind
60.0 mph

Counties Clark County, KY, Madison County, KY

The radar

The Jackson,KY radar (KJKL), 84 km from the middle of the area, began a volume at 20:53 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, 8.8 hours before the alert went out and 180 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.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2022-07-17Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 934 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2022-07-17The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 87 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
934 J/kg
Mixed-layer CIN
-67 J/kg
Mixed-layer LCL
933 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
87 m²/s²
0-3 km storm-relative helicity
47 m²/s²
Significant tornado parameter
0.2
Supercell composite
1.0

Open this sounding in Storm Lab

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 Louisville, KY wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 17, 3:07 PM EDT, 1 hour 43 minutes earlier.

Area forecast discussion, Jul 17, 3:07 PM EDT, 1 hour 43 minutes before
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Hazardous weather outlook, Jul 17, 3:30 PM EDT, 1 hour 20 minutes before
Hazardous Weather Outlook
National Weather Service Louisville KY
330 PM EDT Sun Jul 17 2022

INZ076>079-083-084-089>092-KYZ023>043-045>049-053>057-061>067-
070>078-081-082-181930-
Orange-Washington-Scott-Jefferson-Dubois-Crawford-Perry-Harrison-
Floyd-Clark-Hancock-Breckinridge-Meade-Ohio-Grayson-Hardin-Bullitt-
Oldham-Trimble-Henry-Shelby-Franklin-Spencer-Anderson-Woodford-
Fayette-Bourbon-Nicholas-Nelson-Mercer-Jessamine-Larue-Marion-Boyle-
Garrard-Madison-Butler-Edmonson-Hart-Green-Taylor-Casey-Lincoln-
Logan-Warren-Simpson-Allen-Barren-Monroe-Metcalfe-Adair-Russell-
Cumberland-Clinton-
Including the cities of Paoli, Salem, Scottsburg, Madison, Jasper,
English, Tell City, Corydon, New Albany, Jeffersonville, Lewisport,
Hawesville, Hardinsburg, Brandenburg, Hartford, Leitchfield,
Elizabethtown, Shepherdsville, Louisville, La Grange, Bedford,
Milton, New Castle, Shelbyville, Frankfort, Georgetown, Cynthiana,
Taylorsville, Lawrenceburg, Versailles, Lexington, Paris, Carlisle,
Bardstown, Springfield, Harrodsburg, Nicholasville, Winchester,
Hodgenville, Lebanon, Danville, Lancaster, Richmond, Morgantown,
Brownsville, Horse Cave, Greensburg, Campbellsville, Liberty,
Stanford, Russellville, Bowling Green, Franklin, Providence,
Scottsville, Glasgow, Tompkinsville, Edmonton, Columbia, Jamestown,
Burkesville, and Albany
330 PM EDT Sun Jul 17 2022 /230 PM CDT Sun Jul 17 2022/

This hazardous weather outlook is for portions of south central
Indiana and Central Kentucky.

.DAY ONE...Tonight.

Widespread showers and scattered thunderstorms are expected this
evening and overnight tonight. The main threats will be heavy
rainfall and lightning. Isolated strong storms are possible this
afternoon and evening, with the greatest potential expected across
south central Kentucky.

Where heavy downpours persist for an extended period of time,
localized flash flooding will be possible.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Additional thunderstorms on Monday could produce heavy rainfall,
possibly resulting in localized flooding, especially anywhere that
heavy rain occurs repeatedly.

Temperatures in the mid 90s and high humidity on Wednesday could
result in heat index values over 100 degrees. Should storms form
Wednesday afternoon or evening, a few of them could be strong with
gusty winds and small hail.

.SPOTTER INFORMATION STATEMENT...

Spotters should report any instances of heavy rainfall, flooding, or
severe weather.

GENERAL STORM MOTION OF THE DAY:

Thunderstorms tonight will move to the east at 30 mph.

Any users of this storm motion must be aware that thunderstorm activity
can be erratic and constantly evolving.  Please use this with caution
and be prepared for changing conditions.

&&

More information, along with other weather, hydrological and
climate information can be found, at weather.gov/louisville.

CSG/DM

In the hours before

Special weather statement, Jul 17, 4:34 PM EDT, 16 minutes before
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The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jul 17, 4:34 PM EDTSpecial Weather StatementLMKMadison26 min
Jul 17, 4:51 PM EDTSpecial Weather StatementLMKBarren24 min
Jul 17, 7:32 AM EDTAreal Flood AdvisoryLMKPerry2 hr
Jul 17, 8:10 AM EDTAreal Flood AdvisoryLMKPerry105 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2022Every severe thunderstorm warning in 2022

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.