Alert archive / Kentucky / Mesoscale Discussions in 2017
Mesoscale Discussion 1550
The Storm Prediction Center issued this mesoscale discussion at Aug 22, 2017, 2:44 PM EDT for 4 states. It was in force for 91 min.
The area
The outline as issued.
The facts
- Issued
- Aug 22, 2017, 2:44 PM EDT (18:44 UTC)
- Expired
- Aug 22, 2017, 4:15 PM EDT
- In force
- 91 min
- Issued by
- the Storm Prediction Center
All 140 counties
Anderson County, KY, Bath County, KY, Bourbon County, KY, Boyd County, KY, Boyle County, KY, Bracken County, KY, Breathitt County, KY, Breckinridge County, KY, Bullitt County, KY, Campbell County, KY, Carter County, KY, Clark County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Garrard County, KY, Grant County, KY, Grayson County, KY, Greenup County, KY, Hardin County, KY, Harrison County, KY, Henry County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Johnson County, KY, Kenton County, KY, Larue County, KY, Lawrence County, KY, Lee County, KY, Lewis County, KY, Lincoln County, KY, Madison County, KY, Magoffin County, KY, Marion County, KY, Mason County, KY, Meade County, KY, Menifee County, KY, Mercer County, KY, Montgomery County, KY, Morgan County, KY, Nelson County, KY, Nicholas County, KY, Ohio County, KY, Oldham County, KY, Owen County, KY, Owsley County, KY, Pendleton County, KY, Powell County, KY, Robertson County, KY, Rockcastle County, KY, Rowan County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Taylor County, KY, Washington County, KY, Wolfe County, KY, Woodford County, KY, Adams County, OH, Athens County, OH, Belmont County, OH, Brown County, OH, Carroll County, OH, Clermont County, OH, Clinton County, OH, Columbiana County, OH, Coshocton County, OH, Fairfield County, OH, Fayette County, OH, Gallia County, OH, Guernsey County, OH, Harrison County, OH, Highland County, OH, Hocking County, OH, Jackson County, OH, Jefferson County, OH, Lawrence County, OH, Licking County, OH, Mahoning County, OH, Meigs County, OH, Monroe County, OH, Morgan County, OH, Muskingum County, OH, Noble County, OH, Perry County, OH, Pickaway County, OH, Pike County, OH, Ross County, OH, Scioto County, OH, Stark County, OH, Tuscarawas County, OH, Vinton County, OH, Washington County, OH, Allegheny County, PA, Armstrong County, PA, Beaver County, PA, Blair County, PA, Butler County, PA, Cambria County, PA, Centre County, PA, Clarion County, PA, Clearfield County, PA, Clinton County, PA, Fayette County, PA, Greene County, PA, Indiana County, PA, Jefferson County, PA, Lawrence County, PA, Mercer County, PA, Somerset County, PA, Washington County, PA, Westmoreland County, PA, Brooke County, WV, Cabell County, WV, Calhoun County, WV, Doddridge County, WV, Gilmer County, WV, Hancock County, WV, Harrison County, WV, Jackson County, WV, Lincoln County, WV, Marion County, WV, Marshall County, WV, Mason County, WV, Monongalia County, WV, Ohio County, WV, Pleasants County, WV, Putnam County, WV, Ritchie County, WV, Roane County, WV, Taylor County, WV, Tyler County, WV, Wayne County, WV, Wetzel County, WV, Wirt County, WV, Wood County, WV
The radar
The Cincinnati radar (KILN), 87 km from the middle of the area, began a volume at 18:47 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
Cncnati-Daytn, OH (KILN), launched 12:00Z, 6.7 hours before the alert went out and 86 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
- 793 J/kg
- Mixed-layer CIN
- -50 J/kg
- Mixed-layer LCL
- 939 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 211 m²/s²
- 0-3 km storm-relative helicity
- 187 m²/s²
- Significant tornado parameter
- 0.6
- Supercell composite
- 4.7
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 |
|---|---|---|---|---|
| Aug 22, 11:54 AM EDT | Mesoscale Discussion | SPC | Anderson, Bath, Bourbon, Boyd, Boyle, Bracken and 45 more | 66 min |
| Aug 22, 12:39 PM EDT | Severe Thunderstorm Watch | SPC | Anderson, Bath, Boone, Bourbon, Boyd, Boyle and 63 more | 8 hr |
| Aug 22, 3:06 PM EDT | Mesoscale Discussion | SPC | Caldwell, Calloway, Carlisle, Christian, Crittenden, Fulton and 11 more | 2 hr |
| Aug 22, 4:39 PM EDT | Mesoscale Discussion | SPC | Anderson, Bath, Bourbon, Boyd, Boyle, Bracken and 56 more | 66 min |
| Aug 22, 11:55 AM EDT | Mesoscale Discussion | SPC | Bradford, Cameron, Clinton, Lycoming, McKean, Potter and 4 more | 3 hr |
| Aug 22, 12:23 PM EDT | Tornado Watch | SPC | Bradford, Cameron, Clinton, Elk, Lycoming, McKean and 5 more | 9 hr |
| Aug 22, 2:44 PM EDT | Mesoscale Discussion | SPC | Bradford, Potter, Tioga | 2 hr |
| Aug 22, 3:08 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Carbon, Chester, Columbia and 18 more | 67 min |
| Aug 22, 4:19 PM EDT | Severe Thunderstorm Watch | SPC | Adams, Berks, Bucks, Carbon, Chester, Columbia and 26 more | 8 hr |
| Aug 22, 4:48 PM EDT | Mesoscale Discussion | SPC | Bradford, Lycoming, McKean, Potter, Sullivan, Tioga | 87 min |
| Aug 22, 7:07 PM EDT | Mesoscale Discussion | SPC | Adams, Berks, Bucks, Carbon, Chester, Columbia and 24 more | 113 min |
Nearby
Mesoscale Discussions in Kentucky, 2017Mesoscale Discussions in Ohio, 2017Mesoscale Discussions in West Virginia, 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.