Alert archive / Kentucky / Severe Thunderstorm Watches in 2017

Severe Thunderstorm Watch 276

May 27, 20175 states

The Storm Prediction Center issued this severe thunderstorm watch at May 27, 2017, 1:36 PM CDT for 5 states. It was in force for 7 hr.

The area

The outline as issued.

The facts

Issued: May 27, 2017, 1:36 PM CDT (18:36 UTC)
Expired: May 27, 2017, 9:00 PM CDT
In force: 7 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2.5 in
Strongest gust expected: 70 kt

All 150 counties

Alexander County, IL, Clinton County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jackson County, IL, Jefferson County, IL, Johnson County, IL, Madison County, IL, Marion County, IL, Massac County, IL, Monroe County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Randolph County, IL, Saint Clair County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Washington County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Harrison County, IN, Jefferson County, IN, Orange County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Scott County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Ballard County, KY, Barren County, KY, Bourbon County, KY, Boyle County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Casey County, KY, Christian County, KY, Clark County, KY, Clinton County, KY, Crittenden County, KY, Cumberland County, KY, Daviess County, KY, Edmonson County, KY, Fayette County, KY, Franklin County, KY, Fulton County, KY, Garrard County, KY, Graves County, KY, Grayson County, KY, Green County, KY, Hancock County, KY, Hardin County, KY, Harrison County, KY, Hart County, KY, Henderson County, KY, Henry County, KY, Hickman County, KY, Hopkins County, KY, Jefferson County, KY, Jessamine County, KY, Larue County, KY, Lincoln County, KY, Livingston County, KY, Logan County, KY, Lyon County, KY, Madison County, KY, Marion County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Muhlenberg 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, Todd County, KY, Trigg County, KY, Trimble County, KY, Union County, KY, Warren County, KY, Washington County, KY, Webster County, KY, Woodford County, KY, Cape Girardeau County, MO, City of Saint Louis, MO, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Saint Charles County, MO, Saint Louis County, MO, Scott County, MO, Stoddard County, MO, Benton County, TN, Carroll County, TN, Cheatham County, TN, Clay County, TN, Davidson County, TN, Dickson County, TN, Dyer County, TN, Fentress County, TN, Gibson County, TN, Henry County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lake County, TN, Macon County, TN, Montgomery County, TN, Obion County, TN, Overton County, TN, Pickett County, TN, Putnam County, TN, Robertson County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Weakley County, TN, Wilson County, TN

The radar

The Evansville,IN radar (KVWX), 86 km from the middle of the area, began a volume at 18:35 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 20%
One or more EF2 to EF5 tornadoes: 2%
Ten or more severe wind reports: 80%
One or more gusts of 65 knots or more: 50%
Ten or more severe hail reports: 70%
One or more hailstones of 2 inches or more: 50%
Six or more combined severe hail and wind reports: 90%

Warnings issued inside it

107 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 27, 1:47 PM CDT	Severe Thunderstorm Warning	LMK	Green, Taylor	28 min
May 27, 1:56 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis, City of Saint Louis	23 min
May 27, 1:58 PM CDT	Severe Thunderstorm Warning	LSX	Randolph	51 min
May 27, 2:32 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton	28 min
May 27, 2:39 PM CDT	Severe Thunderstorm Warning	LMK	Crawford, Orange	36 min
May 27, 2:59 PM CDT	Severe Thunderstorm Warning	PAH	Jackson	46 min
May 27, 3:01 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton, Wayne, White	18 min
May 27, 3:04 PM CDT	Severe Thunderstorm Warning	LMK	Boyle, Garrard, Lincoln	26 min
May 27, 3:11 PM CDT	Severe Thunderstorm Warning	OHX	Smith, Wilson	34 min
May 27, 3:12 PM CDT	Severe Thunderstorm Warning	PAH	Mississippi, New Madrid, Scott, Stoddard	33 min
May 27, 3:14 PM CDT	Severe Thunderstorm Warning	LMK	Madison	16 min
May 27, 3:17 PM CDT	Severe Thunderstorm Warning	PAH	White	28 min
May 27, 3:21 PM CDT	Severe Thunderstorm Warning	PAH	Ballard, Carlisle	39 min
May 27, 3:23 PM CDT	Severe Thunderstorm Warning	PAH	Calloway	22 min
May 27, 3:25 PM CDT	Severe Thunderstorm Warning	PAH	Scott	35 min
May 27, 3:26 PM CDT	Severe Thunderstorm Warning	OHX	Smith, Wilson	34 min
May 27, 3:31 PM CDT	Severe Thunderstorm Warning	LMK	Crawford, Perry	29 min
May 27, 3:34 PM CDT	Severe Thunderstorm Warning	PAH	Jackson, Union, Williamson	41 min
May 27, 3:38 PM CDT	Severe Thunderstorm Warning	PAH	Jefferson	37 min
May 27, 3:41 PM CDT	Severe Thunderstorm Warning	PAH	Calloway, Trigg	34 min
May 27, 3:48 PM CDT	Severe Thunderstorm Warning	PAH	Graves, McCracken	42 min
May 27, 3:53 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Putnam, Smith	37 min
May 27, 4:01 PM CDT	Severe Thunderstorm Warning	PAH	Johnson, Pope, Saline, Union, Williamson	44 min
May 27, 4:05 PM CDT	Severe Thunderstorm Warning	PAH	Wabash	14 min
May 27, 4:12 PM CDT	Severe Thunderstorm Warning	LSX	Franklin, Saint Charles, Saint Louis, Warren	34 min
May 27, 4:13 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Williamson	11 min
May 27, 4:14 PM CDT	Severe Thunderstorm Warning	PAH	Massac, Pope	46 min
May 27, 4:16 PM CDT	Severe Thunderstorm Warning	LMK	Crawford, Harrison, Perry	29 min
May 27, 4:16 PM CDT	Severe Thunderstorm Warning	PAH	Christian, Trigg	44 min
May 27, 4:23 PM CDT	Tornado Warning	PAH	Massac, Pope	16 min
May 27, 4:28 PM CDT	Severe Thunderstorm Warning	OHX	DeKalb, Putnam	32 min
May 27, 4:36 PM CDT	Severe Thunderstorm Warning	PAH	Pope	39 min
May 27, 4:37 PM CDT	Severe Thunderstorm Warning	PAH	Mississippi, Scott, Stoddard	38 min
May 27, 4:42 PM CDT	Tornado Warning	OHX	Putnam, White	33 min
May 27, 4:43 PM CDT	Severe Thunderstorm Warning	LMK	Harrison, Perry	32 min
May 27, 4:49 PM CDT	Severe Thunderstorm Warning	LMK	Green, Taylor	26 min
May 27, 4:54 PM CDT	Severe Thunderstorm Warning	PAH	Ballard, Carlisle	36 min
May 27, 4:55 PM CDT	Severe Thunderstorm Warning	PAH	Christian, Todd	23 min
May 27, 4:58 PM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Crittenden, Hopkins, Livingston, Lyon	32 min
May 27, 5:08 PM CDT	Tornado Warning	OHX	Putnam, White	16 min
May 27, 5:10 PM CDT	Severe Thunderstorm Warning	PAH	Bollinger, Cape Girardeau, Perry, Scott, Stoddard	50 min
May 27, 5:14 PM CDT	Flash Flood Warning	LMK	Crawford, Perry	3 hr
May 27, 5:14 PM CDT	Severe Thunderstorm Warning	PAH	Mississippi, Scott, Stoddard	46 min
May 27, 5:15 PM CDT	Severe Thunderstorm Warning	PAH	Calloway, Marshall, Trigg	31 min
May 27, 5:17 PM CDT	Severe Thunderstorm Warning	PAH	Muhlenberg	43 min
May 27, 5:19 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Henry	41 min
May 27, 5:21 PM CDT	Severe Thunderstorm Warning	PAH	Caldwell, Christian, Hopkins, Lyon, Muhlenberg, Trigg	39 min
May 27, 5:23 PM CDT	Severe Thunderstorm Warning	LMK	Dubois, Perry	37 min
May 27, 5:23 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Putnam, White	37 min
May 27, 5:26 PM CDT	Flash Flood Warning	PAH	Bollinger, Mississippi, Scott, Stoddard, Wayne	3 hr
May 27, 5:36 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Green, Marion, Taylor	24 min
May 27, 5:36 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hardin, Larue	24 min
May 27, 5:36 PM CDT	Severe Thunderstorm Warning	PAH	Hopkins, McLean, Muhlenberg, Webster	39 min
May 27, 5:37 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Jackson, Pulaski, Union	38 min
May 27, 5:45 PM CDT	Severe Thunderstorm Warning	PAH	Christian, Muhlenberg, Todd	45 min
May 27, 5:58 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Henry	32 min
May 27, 5:59 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Grayson, Hardin, Larue	31 min
May 27, 5:59 PM CDT	Severe Thunderstorm Warning	PAH	Christian, Hopkins, Muhlenberg	16 min
May 27, 6:01 PM CDT	Severe Thunderstorm Warning	PAH	Carlisle, Fulton, Hickman	44 min
May 27, 6:03 PM CDT	Severe Thunderstorm Warning	OHX	Clay	27 min
May 27, 6:04 PM CDT	Severe Thunderstorm Warning	OHX	Dickson, Houston, Humphreys, Montgomery, Stewart	26 min
May 27, 6:05 PM CDT	Severe Thunderstorm Warning	LMK	Cumberland, Monroe	25 min
May 27, 6:07 PM CDT	Severe Thunderstorm Warning	LMK	Breckinridge, Butler, Grayson, Hancock, Ohio	38 min
May 27, 6:10 PM CDT	Severe Thunderstorm Warning	PAH	Hardin, Johnson, Massac, Pope, Pulaski	65 min
May 27, 6:10 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Taylor	35 min
May 27, 6:10 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Montgomery, Robertson	35 min
May 27, 6:16 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Green, Hart, Taylor	29 min
May 27, 6:18 PM CDT	Severe Thunderstorm Warning	LMK	Edmonson, Grayson, Hardin, Hart, Larue	27 min
May 27, 6:26 PM CDT	Flash Flood Warning Emergency	LMK	Casey, Taylor	4 hr
May 27, 6:29 PM CDT	Severe Thunderstorm Warning	LMK	Logan	16 min
May 27, 6:31 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Humphreys, Montgomery, Stewart	29 min
May 27, 6:35 PM CDT	Severe Thunderstorm Warning	LMK	Perry	25 min
May 27, 6:38 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Robertson	37 min
May 27, 6:39 PM CDT	Severe Thunderstorm Warning	MEG	Henry, Obion, Weakley	51 min
May 27, 6:40 PM CDT	Severe Thunderstorm Warning	PAH	Hardin	65 min
May 27, 6:40 PM CDT	Severe Thunderstorm Warning	LMK	Clinton, Cumberland, Russell	35 min
May 27, 6:44 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Casey, Lincoln	31 min
May 27, 6:44 PM CDT	Severe Thunderstorm Warning	LMK	Logan, Simpson	31 min
May 27, 6:44 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Humphreys, Maury and 1 more	31 min
May 27, 6:45 PM CDT	Severe Thunderstorm Warning	PAH	Carlisle, Fulton, Hickman	30 min
May 27, 6:51 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Macon, Robertson, Sumner, Wilson	24 min
May 27, 6:58 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Humphreys, Montgomery	17 min
May 27, 7:03 PM CDT	Severe Thunderstorm Warning	MEG	Carroll, Henry, Obion, Weakley	42 min
May 27, 7:09 PM CDT	Severe Thunderstorm Warning	LMK	Adair, Barren, Cumberland, Green, Metcalfe, Monroe and 1 more	36 min
May 27, 7:12 PM CDT	Severe Thunderstorm Warning	LMK	Russell	18 min
May 27, 7:15 PM CDT	Severe Thunderstorm Warning	LMK	Clark	30 min
May 27, 7:15 PM CDT	Severe Thunderstorm Warning	OHX	Davidson, Macon, Robertson, Smith, Sumner, Trousdale and 1 more	30 min
May 27, 7:18 PM CDT	Severe Thunderstorm Warning	MEG	Benton, Carroll, Gibson, Henry, Obion, Weakley	42 min
May 27, 7:18 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Rutherford, Smith, Sumner and 2 more	27 min
May 27, 7:19 PM CDT	Severe Thunderstorm Warning	OHX	Fentress, Overton, Pickett	26 min
May 27, 7:20 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Houston, Humphreys and 2 more	25 min
May 27, 7:22 PM CDT	Severe Thunderstorm Warning	OHX	Houston, Montgomery, Stewart	23 min
May 27, 7:24 PM CDT	Severe Thunderstorm Warning	OHX	Cumberland, Overton, Putnam, White	36 min
May 27, 7:39 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Gibson, Madison	18 min
May 27, 7:41 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Dickson, Houston, Humphreys, Montgomery, Robertson and 1 more	34 min
May 27, 7:43 PM CDT	Severe Thunderstorm Warning	OHX	Clay, DeKalb, Jackson, Macon, Putnam, Smith and 2 more	32 min
May 27, 7:45 PM CDT	Flash Flood Warning	LMK	Clinton, Cumberland	4 hr
May 27, 7:47 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Davidson, DeKalb, Putnam, Rutherford, Smith and 2 more	28 min
May 27, 7:49 PM CDT	Severe Thunderstorm Warning	OHX	Cheatham, Davidson, Dickson, Hickman, Humphreys, Williamson	26 min
May 27, 8:00 PM CDT	Severe Thunderstorm Warning	MEG	Crockett, Dyer, Gibson, Lauderdale	24 min
May 27, 8:06 PM CDT	Severe Thunderstorm Warning	OHX	Clay, Cumberland, Fentress, Jackson, Overton, Pickett and 1 more	54 min
May 27, 8:09 PM CDT	Severe Thunderstorm Warning	OHX	Cannon, Cumberland, DeKalb, Putnam, Van Buren, Warren and 1 more	66 min
May 27, 8:19 PM CDT	Severe Thunderstorm Warning	PAH	Butler, Stoddard, Wayne	41 min
May 27, 8:25 PM CDT	Tornado Warning	OHX	Cumberland, Putnam	35 min
May 27, 8:41 PM CDT	Severe Thunderstorm Warning	PAH	Butler, New Madrid, Stoddard	34 min
May 27, 8:52 PM CDT	Flash Flood Warning	PAH	Mississippi, Scott, Stoddard	3 hr
May 27, 9:00 PM CDT	Flash Flood Warning	LMK	Scott	3 hr

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 12:00Z, 6.6 hours before the alert went out and 189 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 825 J/kg
Mixed-layer CIN: -225 J/kg
Mixed-layer LCL: 1026 m above ground
0-6 km bulk shear: 49 kt
0-1 km storm-relative helicity: 154 m²/s²
0-3 km storm-relative helicity: 196 m²/s²
Significant tornado parameter: 0.0
Supercell composite: -0.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 27, 3:54 AM CDT	Mesoscale Discussion	SPC	Alexander	2 hr
May 27, 1:16 PM CDT	Mesoscale Discussion	SPC	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more	59 min
May 27, 3:50 PM CDT	Mesoscale Discussion	SPC	Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more	85 min
May 27, 5:13 PM CDT	Severe Thunderstorm Watch PDS	SPC	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	7 hr
May 27, 6:26 PM CDT	Severe Thunderstorm Watch	SPC	Monroe, Randolph	3 hr
May 26, 7:09 PM CDT	Severe Thunderstorm Watch	SPC	Bartholomew, Boone, Carroll, Clinton, Decatur, Delaware and 23 more	3 hr
May 26, 9:28 PM CDT	Mesoscale Discussion	SPC	Adams, Bartholomew, Blackford, Boone, Brown, Carroll and 34 more	92 min
May 27, 12:50 PM CDT	Mesoscale Discussion	SPC	Clark, Crawford, Dearborn, Floyd, Harrison, Jackson and 9 more	85 min
May 27, 3:11 PM CDT	Severe Thunderstorm Watch	SPC	Ohio, Switzerland	6 hr
May 27, 4:19 AM CDT	Severe Thunderstorm Watch	SPC	Fulton	6 hr
May 27, 6:12 AM CDT	Mesoscale Discussion	SPC	Fulton	2 hr
May 27, 9:13 AM CDT	Mesoscale Discussion	SPC	Adair, Allen, Barren, Bell, Clinton, Cumberland and 12 more	92 min
May 27, 12:06 AM CDT	Severe Thunderstorm Watch	SPC	Barry, Christian, Douglas, Howell, McDonald, Oregon and 4 more	5 hr
May 27, 2:04 AM CDT	Mesoscale Discussion	SPC	Barry, Christian, Douglas, Howell, McDonald, Oregon and 4 more	116 min
May 27, 9:59 AM CDT	Mesoscale Discussion	SPC	Barton, Bates, Benton, Boone, Callaway, Camden and 47 more	2 hr
May 27, 12:13 PM CDT	Tornado Watch	SPC	Barry, Barton, Bates, Benton, Bollinger, Boone and 61 more	7 hr
May 27, 1:12 PM CDT	Mesoscale Discussion	SPC	Barry, Barton, Bates, Benton, Bollinger, Camden and 50 more	93 min
May 27, 3:29 PM CDT	Mesoscale Discussion	SPC	Bollinger, Butler, Carter, Crawford, Dent, Howell and 14 more	91 min
May 27, 4:24 PM CDT	Mesoscale Discussion	SPC	Bollinger, Butler, Cape Girardeau, Carter, Dent, Iron and 8 more	66 min
May 27, 5:56 PM CDT	Mesoscale Discussion	SPC	Benton, Boone, Callaway, Camden, Cole, Cooper and 18 more	64 min
May 27, 6:17 PM CDT	Mesoscale Discussion	SPC	Howell, Oregon, Ozark, Ripley, Taney	58 min
May 27, 7:49 AM CDT	Mesoscale Discussion	SPC	Benton, Carroll, Chester, Crockett, Decatur, Dyer and 12 more	86 min
May 27, 5:11 PM CDT	Mesoscale Discussion	SPC	Anderson, Blount, Campbell, Carter, Claiborne, Cocke and 16 more	64 min
May 27, 5:55 PM CDT	Severe Thunderstorm Watch	SPC	Anderson, Bledsoe, Blount, Bradley, Campbell, Carter and 27 more	9 hr

Nearby

Severe Thunderstorm Watches in Kentucky, 2017 Severe Thunderstorm Watches in Tennessee, 2017 Severe Thunderstorm Watches in Illinois, 2017 Every severe thunderstorm watch in 2017

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.