Alert archive / Kentucky / Mesoscale Discussions in 2017
Mesoscale Discussion 863
The Storm Prediction Center issued this mesoscale discussion at May 27, 2017, 1:50 PM EDT for 6 states. It was in force for 85 min.
The area
The outline as issued.
The facts
- Issued
- May 27, 2017, 1:50 PM EDT (17:50 UTC)
- Expired
- May 27, 2017, 3:15 PM EDT
- In force
- 85 min
- Issued by
- the Storm Prediction Center
- Chance of a watch
- 60%
All 165 counties
Clark County, IN, Crawford County, IN, Dearborn County, IN, Floyd County, IN, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Ohio County, IN, Orange County, IN, Perry County, IN, Ripley County, IN, Scott County, IN, Switzerland County, IN, Washington County, IN, Adair County, KY, Allen County, KY, Anderson County, KY, Barren County, KY, Bath County, KY, Bell County, KY, Boone County, KY, Bourbon County, KY, Boyd County, KY, Boyle County, KY, Bracken County, KY, Breathitt County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Campbell County, KY, Carroll County, KY, Carter County, KY, Casey County, KY, Clark County, KY, Clay County, KY, Clinton County, KY, Cumberland County, KY, Edmonson County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Floyd County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Grayson County, KY, Green County, KY, Greenup County, KY, Hardin County, KY, Harlan County, KY, Harrison County, KY, Hart County, KY, Henry County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Johnson County, KY, Kenton County, KY, Knott County, KY, Knox County, KY, Larue County, KY, Laurel County, KY, Lawrence County, KY, Lee County, KY, Leslie County, KY, Letcher County, KY, Lewis County, KY, Lincoln County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Martin County, KY, Mason County, KY, McCreary County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Metcalfe County, KY, Monroe County, KY, Montgomery County, KY, Morgan County, KY, Nelson County, KY, Nicholas County, KY, Oldham County, KY, Owen County, KY, Owsley County, KY, Pendleton County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Pulaski County, KY, Robertson County, KY, Rockcastle County, KY, Rowan County, KY, Russell County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Trimble County, KY, Warren County, KY, Washington County, KY, Wayne County, KY, Whitley County, KY, Wolfe County, KY, Woodford County, KY, Adams County, OH, Athens County, OH, Brown County, OH, Butler County, OH, Clermont County, OH, Clinton County, OH, Fayette County, OH, Gallia County, OH, Greene County, OH, Hamilton County, OH, Highland County, OH, Hocking County, OH, Jackson County, OH, Lawrence County, OH, Meigs County, OH, Pickaway County, OH, Pike County, OH, Ross County, OH, Scioto County, OH, Vinton County, OH, Warren County, OH, Washington County, OH, Anderson County, TN, Campbell County, TN, Claiborne County, TN, Clay County, TN, Fentress County, TN, Grainger County, TN, Hancock County, TN, Jackson County, TN, Knox County, TN, Macon County, TN, Morgan County, TN, Overton County, TN, Pickett County, TN, Scott County, TN, Union County, TN, City of Norton, VA, Dickenson County, VA, Lee County, VA, Wise County, VA, Boone County, WV, Cabell County, WV, Jackson County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, Mason County, WV, Mingo County, WV, Pleasants County, WV, Putnam County, WV, Ritchie County, WV, Roane County, WV, Wayne County, WV, Wirt County, WV, Wood County, WV
The radar
The Jackson,KY radar (KJKL), 59 km from the middle of the area, began a volume at 17:51 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 5.8 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
- 794 J/kg
- Mixed-layer CIN
- -18 J/kg
- Mixed-layer LCL
- 711 m above ground
- 0-6 km bulk shear
- 45 kt
- 0-1 km storm-relative helicity
- 64 m²/s²
- 0-3 km storm-relative helicity
- 94 m²/s²
- Significant tornado parameter
- 0.2
- Supercell composite
- 1.3
The text
As transmitted.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 26, 8:09 PM EDT | Severe Thunderstorm Watch | SPC | Bartholomew, Boone, Carroll, Clinton, Decatur, Delaware and 23 more | 3 hr |
| May 26, 10:28 PM EDT | Mesoscale Discussion | SPC | Adams, Bartholomew, Blackford, Boone, Brown, Carroll and 34 more | 92 min |
| May 27, 2:16 PM EDT | Mesoscale Discussion | SPC | Dubois, Gibson, Pike, Posey, Spencer, Vanderburgh and 1 more | 59 min |
| May 27, 2:36 PM EDT | Severe Thunderstorm Watch | SPC | Clark, Crawford, Dubois, Floyd, Gibson, Harrison and 10 more | 7 hr |
| May 27, 4:11 PM EDT | Severe Thunderstorm Watch | SPC | Ohio, Switzerland | 6 hr |
| May 27, 4:50 PM EDT | Mesoscale Discussion | SPC | Clark, Crawford, Dubois, Floyd, Gibson, Harrison and 8 more | 85 min |
| May 27, 6:13 PM EDT | Severe Thunderstorm Watch | SPC | Gibson, Pike, Posey, Spencer, Vanderburgh, Warrick | 7 hr |
| May 27, 4:54 AM EDT | Mesoscale Discussion | SPC | Fulton | 2 hr |
| May 27, 5:19 AM EDT | Severe Thunderstorm Watch | SPC | Fulton | 6 hr |
| May 27, 7:12 AM EDT | Mesoscale Discussion | SPC | Fulton | 2 hr |
| May 27, 10:13 AM EDT | Mesoscale Discussion | SPC | Adair, Allen, Barren, Bell, Clinton, Cumberland and 12 more | 92 min |
| May 27, 8:49 AM EDT | Mesoscale Discussion | SPC | Benton, Carroll, Chester, Crockett, Decatur, Dyer and 12 more | 86 min |
| May 27, 6:11 PM EDT | Mesoscale Discussion | SPC | Anderson, Blount, Campbell, Carter, Claiborne, Cocke and 16 more | 64 min |
| May 27, 6:55 PM EDT | Severe Thunderstorm Watch | SPC | Anderson, Bledsoe, Blount, Bradley, Campbell, Carter and 27 more | 9 hr |
| May 27, 4:16 PM EDT | Mesoscale Discussion | SPC | Albemarle, Amelia, Amherst, Appomattox, Augusta, Bedford and 51 more | 89 min |
| May 27, 4:43 PM EDT | Severe Thunderstorm Watch | SPC | Albemarle, Amelia, Amherst, Appomattox, Augusta, Brunswick and 59 more | 5 hr |
| May 27, 6:57 PM EDT | Mesoscale Discussion | SPC | Albemarle, Amelia, Amherst, Appomattox, Augusta, Brunswick and 63 more | 93 min |
Nearby
Mesoscale Discussions in Kentucky, 2017Mesoscale Discussions in Ohio, 2017Mesoscale Discussions in Indiana, 2017Every mesoscale discussion 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.