Alert archive / Kentucky / Mesoscale Discussions in 2012
Mesoscale Discussion 1628
The Storm Prediction Center issued this mesoscale discussion at Jul 27, 2012, 8:28 PM EDT for 5 states. It was in force for 2 hr.
The area
The outline as issued.
The facts
- Issued
- Jul 27, 2012, 8:28 PM EDT (00:28 UTC)
- Expired
- Jul 27, 2012, 10:30 PM EDT
- In force
- 2 hr
- Issued by
- the Storm Prediction Center
All 74 counties
Clark County, IN, Crawford County, IN, Dubois County, IN, Floyd County, IN, Harrison County, IN, Perry County, IN, Pike County, IN, Spencer County, IN, Warrick County, IN, Anderson County, KY, Bath County, KY, Bourbon County, KY, Boyd County, KY, Boyle County, KY, Breathitt County, KY, Bullitt County, KY, Carter County, KY, Clark County, KY, Elliott County, KY, Estill County, KY, Fayette County, KY, Fleming County, KY, Floyd County, KY, Franklin County, KY, Garrard County, KY, Greenup County, KY, Harrison County, KY, Henry County, KY, Jackson County, KY, Jefferson County, KY, Jessamine County, KY, Johnson County, KY, Knott County, KY, Lawrence County, KY, Lee County, KY, Lewis County, KY, Madison County, KY, Magoffin County, KY, Martin 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, Oldham County, KY, Owen County, KY, Owsley County, KY, Perry County, KY, Pike County, KY, Powell County, KY, Robertson County, KY, Rowan County, KY, Scott County, KY, Shelby County, KY, Spencer County, KY, Washington County, KY, Wolfe County, KY, Woodford County, KY, Gallia County, OH, Jackson County, OH, Lawrence County, OH, Scioto County, OH, Buchanan County, VA, Boone County, WV, Cabell County, WV, Kanawha County, WV, Lincoln County, WV, Logan County, WV, Mingo County, WV, Putnam County, WV, Wayne County, WV
The radar
The Louisville radar (KLVX), 126 km from the middle of the area, began a volume at 00:31 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 00:00Z, 0.5 hours before the alert went out and 152 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
- 40 J/kg
- Mixed-layer CIN
- -237 J/kg
- Mixed-layer LCL
- 1746 m above ground
- 0-6 km bulk shear
- 24 kt
- 0-1 km storm-relative helicity
- 107 m²/s²
- 0-3 km storm-relative helicity
- 163 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
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</html>SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 28, 12:26 PM EDT | Mesoscale Discussion | SPC | Arlington, Caroline, Culpeper, Essex, Fairfax, Fauquier and 13 more | 2 hr |
| Jul 28, 1:36 PM EDT | Severe Thunderstorm Watch | SPC | Accomack, Albemarle, Arlington, Caroline, Clarke, Culpeper and 40 more | 8 hr |
| Jul 28, 2:18 PM EDT | Mesoscale Discussion | SPC | Amelia, Brunswick, Charles City, Chesterfield, Dinwiddie, Greensville and 20 more | 117 min |
| Jul 28, 4:18 PM EDT | Mesoscale Discussion | SPC | Accomack, Arlington, Caroline, Clarke, Culpeper, Essex and 28 more | 87 min |
Nearby
Mesoscale Discussions in Kentucky, 2012Mesoscale Discussions in Indiana, 2012Mesoscale Discussions in West Virginia, 2012Every mesoscale discussion in 2012
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.