Alert archive / Kentucky / Tornado Watches in 2013

Tornado Watch 563

November 17, 20136 states

The Storm Prediction Center issued this tornado watch at Nov 17, 2013, 10:43 AM CST for 6 states. It was in force for 8 hr.

The area

The outline as issued.

The facts

Issued: Nov 17, 2013, 10:43 AM CST (16:43 UTC)
Expired: Nov 17, 2013, 7:00 PM CST
In force: 8 hr
Issued by: the Storm Prediction Center
Largest hail expected: 2 in
Strongest gust expected: 60 kt

All 83 counties

Clay County, AR, Craighead County, AR, Greene County, AR, Lawrence County, AR, Mississippi County, AR, Poinsett County, AR, Randolph County, AR, Alexander 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, Massac County, IL, Perry County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Gibson County, IN, Pike County, IN, Posey County, IN, Spencer County, IN, Vanderburgh County, IN, Warrick County, IN, Ballard County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Graves County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Webster County, KY, Bollinger County, MO, Butler County, MO, Cape Girardeau County, MO, Carter County, MO, Crawford County, MO, Dunklin County, MO, Iron County, MO, Madison County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Perry County, MO, Reynolds County, MO, Ripley County, MO, Saint Francois County, MO, Sainte Genevieve County, MO, Scott County, MO, Stoddard County, MO, Washington County, MO, Wayne County, MO, Carroll County, TN, Crockett County, TN, Dyer County, TN, Gibson County, TN, Henry County, TN, Lake County, TN, Lauderdale County, TN, Obion County, TN, Weakley County, TN

The radar

The Paducah radar (KPAH), 92 km from the middle of the area, began a volume at 16:45 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: 50%
One or more EF2 to EF5 tornadoes: 30%
Ten or more severe wind reports: 30%
One or more gusts of 65 knots or more: 10%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 30%
Six or more combined severe hail and wind reports: 80%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Nov 17, 11:50 AM CST	Tornado Warning	LSX	Madison	25 min
Nov 17, 11:52 AM CST	Tornado Warning	PAH	Bollinger, Cape Girardeau, Perry	38 min
Nov 17, 11:57 AM CST	Tornado Warning	PAH	Perry	33 min
Nov 17, 12:12 PM CST	Tornado Warning	PAH	Perry	33 min
Nov 17, 12:19 PM CST	Tornado Warning	PAH	Bollinger, Cape Girardeau	41 min
Nov 17, 12:22 PM CST	Tornado Warning	PAH	Jefferson	38 min
Nov 17, 12:27 PM CST	Tornado Warning	PAH	Jackson	33 min
Nov 17, 12:28 PM CST	Tornado Warning	PAH	Bollinger, Stoddard, Wayne	32 min
Nov 17, 12:50 PM CST	Tornado Warning	PAH	Bollinger, Scott, Stoddard	25 min
Nov 17, 12:51 PM CST	Tornado Warning	PAH	Williamson	39 min
Nov 17, 12:58 PM CST	Tornado Warning	PAH	Wayne	47 min
Nov 17, 1:05 PM CST	Tornado Warning	PAH	Hamilton, Jefferson, Wayne	25 min
Nov 17, 1:11 PM CST	Tornado Warning	PAH	Alexander	34 min
Nov 17, 1:23 PM CST	Severe Thunderstorm Warning	PAH	Hamilton, Saline	37 min
Nov 17, 1:30 PM CST	Tornado Warning	PAH	Alexander, Pulaski	30 min
Nov 17, 1:32 PM CST	Tornado Warning	PAH	Edwards, Wabash	28 min
Nov 17, 1:45 PM CST	Tornado Warning	PAH	Gallatin, Saline, White	30 min
Nov 17, 1:52 PM CST	Tornado Warning	PAH	Massac, Pulaski	23 min
Nov 17, 1:55 PM CST	Severe Thunderstorm Warning	PAH	Gallatin, Saline	50 min
Nov 17, 2:06 PM CST	Tornado Warning	PAH	Gallatin, Saline	24 min
Nov 17, 2:09 PM CST	Tornado Warning Tornado observed	PAH	Massac, Pope	36 min
Nov 17, 2:23 PM CST	Tornado Warning	PAH	Gallatin	37 min
Nov 17, 2:33 PM CST	Tornado Warning Tornado observed	PAH	Caldwell, Crittenden, Livingston, Lyon	42 min
Nov 17, 2:38 PM CST	Severe Thunderstorm Warning	PAH	Massac, Pope	37 min
Nov 17, 2:41 PM CST	Tornado Warning	PAH	Henderson	49 min
Nov 17, 3:01 PM CST	Tornado Warning Tornado observed	PAH	Caldwell, Christian, Hopkins	29 min
Nov 17, 3:13 PM CST	Severe Thunderstorm Warning	PAH	Spencer	47 min
Nov 17, 3:23 PM CST	Flash Flood Warning	PAH	Spencer	112 min
Nov 17, 3:29 PM CST	Tornado Warning	PAH	Caldwell, Christian, Hopkins, Muhlenberg	46 min
Nov 17, 3:31 PM CST	Tornado Warning	PAH	Spencer	29 min
Nov 17, 3:35 PM CST	Tornado Warning	PAH	Caldwell, Livingston, Lyon, Marshall	25 min
Nov 17, 4:02 PM CST	Tornado Warning	PAH	Muhlenberg	28 min
Nov 17, 4:07 PM CST	Severe Thunderstorm Warning	PAH	Calloway, Fulton, Graves, Hickman, Marshall, Trigg	38 min
Nov 17, 4:13 PM CST	Severe Thunderstorm Warning	PAH	Caldwell, Christian, Trigg	32 min
Nov 17, 4:18 PM CST	Tornado Warning	PAH	Calloway, Marshall, Trigg	27 min
Nov 17, 4:33 PM CST	Tornado Warning	PAH	Calloway	27 min
Nov 17, 4:42 PM CST	Severe Thunderstorm Warning	PAH	Calloway, Christian, Graves, Muhlenberg, Todd, Trigg	48 min
Nov 17, 4:46 PM CST	Tornado Warning	PAH	Muhlenberg, Todd	14 min
Nov 17, 4:48 PM CST	Severe Thunderstorm Warning	MEG	Henry	42 min
Nov 17, 5:50 PM CST	Severe Thunderstorm Warning	MEG	Carroll, Crockett, Gibson	25 min
Nov 17, 6:12 PM CST	Severe Thunderstorm Warning	MEG	Carroll, Gibson, Henderson, Madison	48 min

Discussions around it

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

The nearest sounding before it

Little Rock, AR (KBYH), launched 12:00Z, 4.7 hours before the alert went out and 273 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: 874 J/kg
Mixed-layer CIN: -5 J/kg
Mixed-layer LCL: 461 m above ground
0-6 km bulk shear: 61 kt
0-1 km storm-relative helicity: 310 m²/s²
0-3 km storm-relative helicity: 316 m²/s²
Significant tornado parameter: 1.7
Supercell composite: 7.1

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Nov 16, 11:29 PM CST	Mesoscale Discussion	SPC	Baxter, Clay, Cleburne, Fulton, Greene, Independence and 9 more	61 min
Nov 17, 2:06 AM CST	Mesoscale Discussion	SPC	Clay, Cleburne, Craighead, Crittenden, Cross, Greene and 15 more	84 min
Nov 17, 10:17 AM CST	Mesoscale Discussion	SPC	Clay, Fulton, Greene, Lawrence, Randolph, Sharp	118 min
Nov 17, 11:57 AM CST	Mesoscale Discussion	SPC	Clay, Greene, Lawrence, Randolph	93 min
Nov 17, 2:43 PM CST	Mesoscale Discussion	SPC	Clay, Craighead, Greene	62 min
Nov 17, 3:46 PM CST	Mesoscale Discussion	SPC	Craighead, Mississippi	89 min
Nov 17, 7:47 AM CST	Mesoscale Discussion	SPC	Adams, Bond, Brown, Bureau, Calhoun, Carroll and 55 more	88 min
Nov 17, 8:40 AM CST	Tornado Watch PDS	SPC	Adams, Bond, Boone, Brown, Bureau, Calhoun and 77 more	7 hr
Nov 17, 10:49 AM CST	Mesoscale Discussion	SPC	Bond, Boone, Bureau, Calhoun, Cass, Champaign and 56 more	86 min
Nov 17, 11:57 AM CST	Mesoscale Discussion	SPC	Champaign, Coles, Cook, DeWitt, Douglas, DuPage and 11 more	93 min
Nov 17, 1:05 PM CST	Mesoscale Discussion	SPC	Alexander, Hamilton, Johnson, Massac, Pope, Pulaski and 4 more	55 min
Nov 17, 1:13 PM CST	Mesoscale Discussion	SPC	Clark, Crawford, Edgar, Edwards, Jasper, Lawrence and 3 more	77 min
Nov 17, 10:01 AM CST	Mesoscale Discussion	SPC	Adams, Allen, Bartholomew, Benton, Blackford, Boone and 56 more	119 min
Nov 17, 10:20 AM CST	Tornado Watch PDS	SPC	Adams, Allen, Bartholomew, Blackford, Boone, Brown and 65 more	9 hr
Nov 17, 1:34 PM CST	Mesoscale Discussion	SPC	Clark, Crawford, Floyd, Harrison, Perry, Washington	56 min
Nov 17, 1:58 PM CST	Tornado Watch	SPC	Clark, Crawford, Dubois, Floyd, Harrison, Jefferson and 4 more	6 hr
Nov 17, 2:51 PM CST	Mesoscale Discussion	SPC	Adams, Allen, Bartholomew, Blackford, Brown, Clay and 34 more	84 min
Nov 17, 3:25 PM CST	Tornado Watch	SPC	Greenup, Lewis, Mason, Robertson	5 hr
Nov 17, 5:06 PM CST	Mesoscale Discussion	SPC	Bracken, Campbell, Kenton, Mason	54 min
Nov 17, 5:16 PM CST	Mesoscale Discussion	SPC	Adair, Bath, Boyd, Breathitt, Carter, Casey and 40 more	59 min
Nov 16, 7:53 PM CST	Mesoscale Discussion	SPC	Adair, Andrew, Buchanan, Caldwell, Carroll, Chariton and 16 more	67 min
Nov 17, 4:30 PM CST	Tornado Watch	SPC	Benton, Cheatham, Davidson, Dickson, Houston, Humphreys and 5 more	4 hr

Nearby

Tornado Watches in Kentucky, 2013 Tornado Watches in Missouri, 2013 Tornado Watches in Illinois, 2013 Every tornado watch in 2013

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.