Alert archive / Kentucky / Freeze Warnings in 2018

Freeze Warning 1, NWS Louisville, KY

April 4, 201849 counties in Kentucky

NWS Louisville, KY issued this freeze warning at Apr 4, 2018, 2:43 AM CDT for 49 counties in Kentucky. It took effect at Apr 4, 2018, 11:00 PM CDT. It was in force for 10 hr. 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 4, 2018, 2:43 AM CDT (07:43 UTC)
In effect from
Apr 4, 2018, 11:00 PM CDT
Expired
Apr 5, 2018, 9:00 AM CDT
In force
10 hr
Issued by
NWS Louisville, KY
All 49 counties

Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Casey County, KY, Clark County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Garrard County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Logan County, KY, Madison County, KY, Marion County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Simpson County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Woodford County, KY

The radar

The Louisville radar (KLVX), 61 km from the middle of the area, began a volume at 07:42 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 00:00Z, 7.7 hours before the alert went out and 197 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, Nashville Metro, TN at 00:00Z on 2018-04-04Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 398 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, Nashville Metro, TN at 00:00Z on 2018-04-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 243 square meters per square second.1939587897117Sfc1 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
398 J/kg
Mixed-layer CIN
-16 J/kg
Mixed-layer LCL
1862 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
243 m²/s²
0-3 km storm-relative helicity
349 m²/s²
Significant tornado parameter
0.1
Supercell composite
4.8

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this freeze 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 freeze warning went out at Apr 4, 2:17 AM CDT, 26 minutes earlier.

Area forecast discussion, Apr 4, 2:17 AM CDT, 26 minutes before
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Hazardous weather outlook, Apr 3, 9:27 PM CDT, 5 hours 16 minutes before
Hazardous Weather Outlook
National Weather Service Louisville KY
1027 PM EDT Tue Apr 3 2018

KYZ027>029-034>043-045>049-053>057-061>067-070>078-081-082-050230-
Grayson-Hardin-Bullitt-Shelby-Franklin-Scott-Harrison-Spencer-
Anderson-Woodford-Fayette-Bourbon-Nicholas-Nelson-Washington-Mercer-
Jessamine-Clark-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 Leitchfield, Elizabethtown, Shepherdsville,
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
1027 PM EDT Tue Apr 3 2018 /927 PM CDT Tue Apr 3 2018/

...TORNADO WATCH 31 IN EFFECT UNTIL 1 AM EDT /MIDNIGHT CDT/
WEDNESDAY...

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

.DAY ONE...Tonight.

Strong to severe thunderstorms will affect the area through the
evening hours. The main threat will be damaging wind, but a couple
of tornadoes will also be possible.

Strong southwest to northwest winds are expected thru the evening,
with sustained winds up to 30 mph and gusts in excess of 40 mph
likely even outside of thunderstorms.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

A hard freeze appears likely Thursday morning and again Sunday
morning with lows in the 20s each morning. Near freezing or
subfreezing temperatures also are possible Saturday morning. This
could have serious agricultural impact.

Although still a bit tenuous at this time, wintry weather is
possible Friday night with rain changing to snow over parts of
central Kentucky and south-central Indiana. Some accumulation is
possible.

.SPOTTER INFORMATION STATEMENT...

Spotters should report and wind damage, stronger gusts, or hail to
the National Weather Service.

INZ076>079-083-084-089>092-KYZ023>026-030>033-050230-
Orange-Washington-Scott-Jefferson-Dubois-Crawford-Perry-Harrison-
Floyd-Clark-Hancock-Breckinridge-Meade-Ohio-Oldham-Trimble-Henry-
Including the cities of Paoli, Salem, Scottsburg, Madison, Jasper,
English, Tell City, Corydon, New Albany, Jeffersonville, Lewisport,
Hawesville, Hardinsburg, Brandenburg, Hartford, Louisville,
La Grange, Bedford, Milton, and New Castle
1027 PM EDT Tue Apr 3 2018 /927 PM CDT Tue Apr 3 2018/

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

.DAY ONE...Tonight.

Strong southwest to northwest winds are expected thru this evening,
with sustained winds up to 30 mph and gusts in excess of 40 mph.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

A hard freeze appears likely Thursday morning and again Sunday
morning with lows in the 20s each morning. Near freezing or
subfreezing temperatures also are possible Saturday morning. This
could have serious agricultural impact.

Although still a bit tenuous at this time, wintry weather is
possible Friday night with rain changing to snow over parts of
central Kentucky and south-central Indiana. Some accumulation is
possible.

.SPOTTER INFORMATION STATEMENT...

Spotters should report and wind damage, stronger gusts, or hail to
the National Weather Service.

JDG/RJS

In the hours before

Special weather statement, Apr 3, 10:18 PM CDT, 4 hours 25 minutes before
Special Weather Statement
National Weather Service Louisville KY
1018 PM CDT TUE APR 3 2018

KYZ075>078-081-082-040345-
Russell-Metcalf-Monroe-Cumberland-Adair-Clinton-
1018 PM CDT TUE APR 3 2018

...A STRONG THUNDERSTORM WILL AFFECT CLINTON...SOUTHWESTERN
RUSSELL...EASTERN MONROE...CUMBERLAND...SOUTHERN METCALFE AND
SOUTHERN ADAIR COUNTIES...

At 1018 PM CDT, a strong thunderstorm was located 9 miles west of
Burkesville, moving northeast at 65 mph.

Wind gusts up to 50 mph are possible with this storm.

Locations impacted include...
Tompkinsville, Albany, Jamestown, Edmonton, Burkesville, Leslie,
Russell Springs, Desda, Cartwright and Cundiff.

LAT...LON 3662 8567 3695 8574 3712 8513 3689 8502
      3686 8506 3683 8506 3681 8503 3677 8501
      3669 8502 3668 8501 3667 8501 3666 8500
      3663 8500 3662 8498 3663 8527 3661 8548
TIME...MOT...LOC 0318Z 246DEG 58KT 3678 8554

EBW
Special weather statement, Apr 3, 10:39 PM CDT, 4 hours 4 minutes before
Special Weather Statement
National Weather Service Louisville KY
1139 PM EDT TUE APR 3 2018

KYZ056-057-066-067-077-078-040400-
Russell-Lincoln-Madison-Garrard-Casey-Adair-
1139 PM EDT TUE APR 3 2018

...A LINE OF STRONG THUNDERSTORMS WILL AFFECT LINCOLN...SOUTHEASTERN
GARRARD...NORTHERN RUSSELL...SOUTHEASTERN MADISON...CASEY AND
SOUTHEASTERN ADAIR COUNTIES...

At 1139 PM EDT/1039 PM CDT/, radar indicated strong thunderstorms
were located along a line extending from 8 miles northeast of Liberty
to near Columbia. Movement was northeast at 70 mph.

Wind gusts up to 50 mph are possible with these storms.

Locations impacted include...
Liberty, Berea, Russell Springs, Crab Orchard, Hustonville,
Boneyville, Lawhorn Hill, Teddy, Royville and Sano.

LAT...LON 3756 8417 3752 8420 3752 8430 3754 8430
      3754 8435 3747 8437 3748 8445 3733 8450
      3735 8456 3712 8490 3709 8491 3694 8542
      3746 8488 3766 8411 3764 8413 3757 8410
TIME...MOT...LOC 0339Z 247DEG 65KT 3743 8486 3703 8528

EBW
Local storm report, Apr 3, 10:51 PM CDT, 3 hours 52 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1151 PM EDT TUE APR 3 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0855 PM     TSTM WND DMG     LORETTO                 37.64N 85.40W
04/03/2018                   MARION             KY   LAW ENFORCEMENT

            1 DOWNED POWER POLE. TIME ESTIMATED FROM
            RADAR.

&&

EBW
Local storm report, Apr 3, 10:53 PM CDT, 3 hours 50 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE LOUISVILLE KY
1153 PM EDT TUE APR 3 2018

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0908 PM     TSTM WND DMG     BRADFORDSVILLE          37.50N 85.14W
04/03/2018                   MARION             KY   LAW ENFORCEMENT

            2 POWER POLES DOWNED IN BRADFORDSVILLE. TIME
            ESTIMATED FROM RADAR.

&&

EBW
Local storm report, Apr 3, 11:21 PM CDT, 3 hours 22 minutes before
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Local storm report, Apr 4, 12:17 AM CDT, 2 hours 26 minutes before
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The office that day

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

IssuedProductOfficeCountiesLasted
Apr 3, 7:03 PM CDTSevere Thunderstorm WarningLMKBreckinridge, Grayson, Ohio27 min
Apr 3, 7:12 PM CDTSevere Thunderstorm WarningLMKBullitt, Hardin, Nelson33 min
Apr 3, 7:17 PM CDTTornado WarningLMKHardin, Larue28 min
Apr 3, 7:21 PM CDTSevere Thunderstorm WarningLMKHenry, Trimble9 min
Apr 3, 7:28 PM CDTSevere Thunderstorm WarningLMKGreen, Hart, Larue32 min
Apr 3, 7:31 PM CDTSpecial Weather StatementLMKHenry29 min
Apr 3, 7:31 PM CDTSevere Thunderstorm WarningLMKLarue, Marion, Nelson, Washington29 min
Apr 3, 7:34 PM CDTSpecial Weather StatementLMKEdmonson, Warren26 min
Apr 3, 7:35 PM CDTTornado WarningLMKLarue, Marion, Nelson25 min
Apr 3, 7:36 PM CDTSevere Thunderstorm WarningLMKEdmonson, Hart, Warren24 min
Apr 3, 7:37 PM CDTSpecial Weather StatementLMKAnderson, Mercer23 min
Apr 3, 7:40 PM CDTSpecial Weather StatementLMKHenry, Shelby35 min
Apr 3, 7:41 PM CDTTornado Warning Tornado observedLMKGreen, Hart19 min
Apr 3, 7:57 PM CDTSevere Thunderstorm WarningLMKBoyle, Casey, Garrard, Lincoln, Marion, Mercer and 1 more48 min
Apr 3, 7:59 PM CDTSevere Thunderstorm WarningLMKAdair, Casey, Edmonson, Green, Hart, Lincoln and 4 more46 min
Apr 3, 8:01 PM CDTSpecial Weather StatementLMKAnderson29 min
Apr 3, 8:07 PM CDTTornado WarningLMKBoyle, Marion23 min
Apr 3, 8:11 PM CDTTornado WarningLMKMarion, Taylor19 min
Apr 3, 8:14 PM CDTSevere Thunderstorm WarningLMKHarrison, Scott31 min
Apr 3, 8:20 PM CDTSevere Thunderstorm WarningLMKBreckinridge, Hancock25 min
Apr 3, 8:25 PM CDTTornado WarningLMKCasey, Marion, Taylor20 min
Apr 3, 8:31 PM CDTTornado WarningLMKBoyle, Garrard, Lincoln29 min
Apr 3, 8:37 PM CDTSevere Thunderstorm WarningLMKBourbon, Clark, Fayette, Jessamine23 min
Apr 3, 8:41 PM CDTSevere Thunderstorm WarningLMKBreckinridge, Grayson, Hardin21 min
Apr 3, 8:41 PM CDTTornado WarningLMKCasey, Garrard, Lincoln19 min
Apr 3, 8:46 PM CDTSevere Thunderstorm WarningLMKButler, Edmonson, Logan, Warren29 min
Apr 3, 8:47 PM CDTSevere Thunderstorm WarningLMKCasey, Lincoln28 min
Apr 3, 8:56 PM CDTSevere Thunderstorm WarningLMKClark, Madison49 min
Apr 3, 8:56 PM CDTTornado WarningLMKGarrard, Lincoln34 min
Apr 3, 8:59 PM CDTSevere Thunderstorm WarningLMKBourbon, Clark31 min
Apr 3, 9:04 PM CDTSevere Thunderstorm WarningLMKMadison26 min
Apr 3, 9:11 PM CDTSevere Thunderstorm WarningLMKLogan, Simpson34 min
Apr 3, 9:15 PM CDTSevere Thunderstorm WarningLMKLincoln30 min
Apr 3, 9:16 PM CDTTornado WarningLMKMadison14 min
Apr 3, 9:27 PM CDTSpecial Weather StatementLMKMercer, Washington33 min
Apr 3, 9:34 PM CDTSevere Thunderstorm WarningLMKAllen, Barren, Simpson, Warren26 min
Apr 3, 9:39 PM CDTSpecial Weather StatementLMKGreen, Marion, Taylor36 min
Apr 3, 9:57 PM CDTSevere Thunderstorm WarningLMKAllen, Barren, Cumberland, Metcalfe, Monroe33 min
Apr 3, 10:05 PM CDTSpecial Weather StatementLMKBourbon, Boyle, Clark, Fayette, Garrard, Jessamine and 3 more25 min
Apr 3, 10:18 PM CDTSpecial Weather StatementLMKClinton, Cumberland27 min
Apr 3, 10:39 PM CDTSpecial Weather StatementLMKCasey, Lincoln21 min
Apr 3, 11:09 PM CDTSevere Thunderstorm WarningLMKGarrard, Madison21 min
Apr 4, 10:18 AM CDTRiver Flood WarningLMKJefferson, Oldham4 days
Apr 4, 10:18 AM CDTRiver Flood WarningLMKHardin, Jefferson, Meade27 hr
Apr 3, 7:49 PM CDTSpecial Weather StatementLMKHarrison, Perry26 min
Apr 3, 9:22 PM CDTSpecial Weather StatementLMKCrawford, Harrison23 min

Nearby

Freeze Warnings in Kentucky, 2018Every freeze warning in 2018

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.