Alert archive / Ohio / Mesoscale Discussions in 2012
Mesoscale Discussion 60
The Storm Prediction Center issued this mesoscale discussion at Jan 23, 2012, 11:46 AM EST for 24 counties in Kentucky; 40 counties in Ohio. It was in force for 89 min.
The area
The outline as issued.
The facts
- Issued
- Jan 23, 2012, 11:46 AM EST (16:46 UTC)
- Expired
- Jan 23, 2012, 1:15 PM EST
- In force
- 89 min
- Issued by
- the Storm Prediction Center
All 64 counties
Bath County, KY, Boone County, KY, Bourbon County, KY, Bracken County, KY, Campbell County, KY, Clark County, KY, Fayette County, KY, Fleming County, KY, Franklin County, KY, Gallatin County, KY, Grant County, KY, Greenup County, KY, Harrison County, KY, Kenton County, KY, Lewis County, KY, Mason County, KY, Montgomery County, KY, Nicholas County, KY, Owen County, KY, Pendleton County, KY, Robertson County, KY, Rowan County, KY, Scott County, KY, Woodford County, KY, Adams County, OH, Athens County, OH, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Coshocton County, OH, Delaware County, OH, Fairfield County, OH, Fayette County, OH, Franklin County, OH, Greene County, OH, Guernsey County, OH, Hamilton County, OH, Highland County, OH, Hocking County, OH, Holmes County, OH, Jackson County, OH, Knox County, OH, Licking County, OH, Logan County, OH, Madison County, OH, Marion County, OH, Meigs County, OH, Miami County, OH, Montgomery County, OH, Morgan County, OH, Morrow County, OH, Muskingum County, OH, Perry County, OH, Pickaway County, OH, Pike County, OH, Richland County, OH, Ross County, OH, Scioto County, OH, Union County, OH, Vinton County, OH, Warren County, OH
The radar
The Cincinnati radar (KILN), 54 km from the middle of the area, began a volume at 16:49 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, 4.8 hours before the alert went out and 52 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
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 1200 m above ground
- 0-6 km bulk shear
- 76 kt
- 0-1 km storm-relative helicity
- 298 m²/s²
- 0-3 km storm-relative helicity
- 315 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
032
ACUS11 KWNS 231647
SWOMCD
SPC MCD 231646
OHZ000-KYZ000-INZ000-231815-
MESOSCALE DISCUSSION 0060
NWS STORM PREDICTION CENTER NORMAN OK
1046 AM CST MON JAN 23 2012
AREAS AFFECTED...NERN KY...SWRN INTO CNTRL OH
CONCERNING...SEVERE POTENTIAL...WATCH UNLIKELY
VALID 231646Z - 231815Z
A LINE OF SHALLOW CONVECTION AHEAD OF A COLD FRONT WILL BE CAPABLE
OF PRODUCING GUSTY WINDS THIS AFTERNOON. AT THIS TIME...LITTLE IF
ANY LIGHTNING IS ANTICIPATED WITH THIS ACTIVITY.
LATEST SFC ANALYSIS INDICATED A COLD FRONT STRETCHING SWD ACROSS FAR
ERN INDIANA INTO CNTRL KENTUCKY. SHALLOW CONVECTION HAS DEVELOPED
NEAR THE LOUISVILLE AREA WHERE TEMPERATURES HAVE BEEN ABLE TO WARM
INTO THE MID AND UPPER 50S IN A CLEAR SLOT. THESE SHALLOW SHOWERS
ARE EXPECTED TO INCREASE ALONG THE FRONT THIS AFTERNOON AS THE
SYSTEM TRACKS EWD INTO OH AND NRN KY. AS THE BACKGROUND LOW LEVEL
FLOW IS ALREADY STRONG /SFC-1 KM SHEAR 40-60 KT/...THESE SHOWERS
COULD AID IN PRODUCING STRONG SFC WIND GUSTS. DUE TO THE LACK OF
BUOYANCY /MLCAPE LESS THAN 250 J/KG ACROSS THE REGION/...UPDRAFT
STRENGTH IS NOT EXPECTED TO BE VIGOROUS ENOUGH TO SUSTAIN LONG-LIVED
THUNDERSTORM ACTIVITY. ADDITIONALLY...WARM TEMPERATURES IN THE
700-600 MB LAYER WILL FURTHER INHIBIT UPDRAFT DEPTH. THUS...A WATCH
IS NOT ANTICIPATED AT THIS TIME. HOWEVER...CONVECTIVE TRENDS WILL
BE MONITORED.
..LEITMAN.. 01/23/2012
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...PBZ...RLX...CLE...JKL...ILN...LMK...
LAT...LON 38058507 39598477 40738348 40868269 40768220 40538161
39978140 39298168 38538270 38098342 37818436 38058507SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jan 22, 8:28 PM EST | Tornado Watch | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 16 more | 5 hr |
| Jan 22, 9:37 PM EST | Mesoscale Discussion | SPC | Ballard, Carlisle, Fulton, Hickman, McCracken | 83 min |
| Jan 22, 11:49 PM EST | Mesoscale Discussion | SPC | Breckinridge, Bullitt, Butler, Caldwell, Calloway, Christian and 26 more | 86 min |
| Jan 23, 12:34 AM EST | Severe Thunderstorm Watch | SPC | Allen, Barren, Breckinridge, Bullitt, Butler, Edmonson and 17 more | 3 hr |
| Jan 23, 1:52 AM EST | Mesoscale Discussion | SPC | Adair, Allen, Anderson, Barren, Bath, Boone and 65 more | 113 min |
| Jan 23, 2:14 AM EST | Severe Thunderstorm Watch | SPC | Adair, Anderson, Bath, Bell, Boone, Bourbon and 59 more | 5 hr |
| Jan 23, 5:11 AM EST | Mesoscale Discussion | SPC | Bath, Bell, Breathitt, Carter, Clay, Elliott and 19 more | 64 min |
| Jan 23, 3:26 PM EST | Mesoscale Discussion | SPC | Belmont, Carroll, Columbiana, Harrison, Jefferson, Mahoning and 4 more | 94 min |
Nearby
Mesoscale Discussions in Ohio, 2012Mesoscale Discussions in Kentucky, 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.