Alert archive / Tennessee / Severe Thunderstorm Watches in 2017
Severe Thunderstorm Watch 280
The Storm Prediction Center issued this severe thunderstorm watch at May 27, 2017, 5:13 PM CDT for 5 states. It was in force for 7 hr.
The area
The outline as issued.
The facts
- Issued
- May 27, 2017, 5:13 PM CDT (22:13 UTC)
- Expired
- May 28, 2017, 12:00 AM CDT
- In force
- 7 hr
- Issued by
- the Storm Prediction Center
- Particularly dangerous situation
- Yes
- Largest hail expected
- 2 in
- Strongest gust expected
- 70 kt
All 106 counties
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, Allen County, KY, Ballard County, KY, Butler 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, Logan County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Muhlenberg County, KY, Ohio County, KY, Simpson County, KY, Todd County, KY, Trigg County, KY, Union County, KY, Warren County, KY, Webster County, KY, Cape Girardeau County, MO, Dunklin County, MO, Mississippi County, MO, New Madrid County, MO, Pemiscot County, MO, Scott County, MO, Stoddard County, MO, Bedford County, TN, Benton County, TN, Cannon County, TN, Carroll County, TN, Cheatham County, TN, Clay County, TN, Coffee County, TN, Cumberland County, TN, Davidson County, TN, DeKalb County, TN, Dickson County, TN, Dyer County, TN, Fentress County, TN, Gibson County, TN, Giles County, TN, Grundy County, TN, Henry County, TN, Hickman County, TN, Houston County, TN, Humphreys County, TN, Jackson County, TN, Lake County, TN, Lawrence County, TN, Lewis County, TN, Macon County, TN, Marshall County, TN, Maury County, TN, Montgomery County, TN, Obion County, TN, Overton County, TN, Perry County, TN, Pickett County, TN, Putnam County, TN, Robertson County, TN, Rutherford County, TN, Smith County, TN, Stewart County, TN, Sumner County, TN, Trousdale County, TN, Van Buren County, TN, Warren County, TN, Wayne County, TN, Weakley County, TN, White County, TN, Williamson County, TN, Wilson County, TN
The radar
The Paducah radar (KPAH), 53 km from the middle of the area, began a volume at 22:12 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
- 20%
- Ten or more severe wind reports
- 95%
- One or more gusts of 65 knots or more
- 90%
- Ten or more severe hail reports
- 40%
- One or more hailstones of 2 inches or more
- 30%
- Six or more combined severe hail and wind reports
- 95%
Warnings issued inside it
67 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| 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 | 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 | 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 | 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, 6:07 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 | OHX | Cheatham, Dickson, Montgomery, Robertson | 35 min |
| 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 | Breckinridge, Hancock, Meade, Ohio | 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, 6:44 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, 7:15 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, 7:47 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, 7:54 PM CDT | Severe Thunderstorm Warning | OHX | Cumberland | 36 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, 8:21 PM CDT | Tornado Warning | OHX | Cumberland | 13 min |
| May 27, 8:25 PM CDT | Tornado Warning | OHX | Cumberland, Putnam | 35 min |
| May 27, 8:26 PM CDT | Severe Thunderstorm Warning | OHX | Hickman | 19 min |
| May 27, 8:27 PM CDT | Tornado Warning | OHX | Van Buren, White | 21 min |
| May 27, 8:41 PM CDT | Severe Thunderstorm Warning | PAH | Butler, New Madrid, Stoddard | 34 min |
| May 27, 8:43 PM CDT | Severe Thunderstorm Warning | OHX | Giles, Hickman, Lewis, Marshall, Maury | 32 min |
| May 27, 8:45 PM CDT | Tornado Warning | OHX | Cumberland | 30 min |
| May 27, 8:52 PM CDT | Flash Flood Warning | PAH | Mississippi, Scott, Stoddard | 3 hr |
| May 27, 8:56 PM CDT | Severe Thunderstorm Warning | OHX | Marshall, Maury | 34 min |
| May 27, 8:57 PM CDT | Severe Thunderstorm Warning | OHX | Cumberland, Van Buren, Warren, White | 18 min |
| May 27, 9:06 PM CDT | Severe Thunderstorm Warning | MEG | Dunklin, Pemiscot | 39 min |
| May 27, 9:14 PM CDT | Severe Thunderstorm Warning | MEG | Carroll, Gibson, Henderson, Madison | 18 min |
| May 27, 9:14 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Giles, Marshall | 31 min |
| May 27, 9:17 PM CDT | Severe Thunderstorm Warning | OHX | Bedford, Marshall, Rutherford | 17 min |
| May 27, 9:38 PM CDT | Severe Thunderstorm Warning | MEG | Dunklin | 52 min |
| May 27, 9:55 PM CDT | Severe Thunderstorm Warning | MEG | Dunklin, Pemiscot | 50 min |
| May 27, 10:00 PM CDT | Severe Thunderstorm Warning | MEG | Crockett, Dyer, Gibson, Haywood, Lauderdale, Madison | 45 min |
| May 27, 10:23 PM CDT | Severe Thunderstorm Warning | MEG | Dyer, Gibson, Obion, Weakley | 35 min |
| May 27, 10:34 PM CDT | Tornado Warning | MEG | Henry, Weakley | 11 min |
| May 27, 10:38 PM CDT | Severe Thunderstorm Warning | MEG | Carroll, Crockett, Dyer, Gibson, Haywood, Lauderdale and 1 more | 52 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
Nashville Metro, TN (KBNA), launched 12:00Z, 10.2 hours before the alert went out and 196 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
- 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
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, 1:36 PM CDT | Severe Thunderstorm Watch | SPC | Alexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 20 more | 7 hr |
| May 27, 3:50 PM CDT | Mesoscale Discussion | SPC | Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 10 more | 85 min |
| 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 Tennessee, 2017Severe Thunderstorm Watches in Kentucky, 2017Severe Thunderstorm Watches in Illinois, 2017Every 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.