Alert archive / Kentucky / Mesoscale Discussions in 2012
Mesoscale Discussion 57
The Storm Prediction Center issued this mesoscale discussion at Jan 23, 2012, 5:11 AM EST for 25 counties in Kentucky; Pike County, Ross County, Scioto County, Ohio. It was in force for 64 min.
The area
The outline as issued.
The facts
- Issued
- Jan 23, 2012, 5:11 AM EST (10:11 UTC)
- Expired
- Jan 23, 2012, 6:15 AM EST
- In force
- 64 min
- Issued by
- the Storm Prediction Center
All 28 counties
Bath County, KY, Bell County, KY, Breathitt County, KY, Carter County, KY, Clay County, KY, Elliott County, KY, Estill County, KY, Greenup County, KY, Harlan County, KY, Jackson County, KY, Knox County, KY, Laurel County, KY, Lee County, KY, Leslie County, KY, Lewis County, KY, Magoffin County, KY, McCreary County, KY, Menifee County, KY, Morgan County, KY, Owsley County, KY, Perry County, KY, Powell County, KY, Rowan County, KY, Whitley County, KY, Wolfe County, KY, Pike County, OH, Ross County, OH, Scioto County, OH
The radar
The Jackson,KY radar (KJKL), 52 km from the middle of the area, began a volume at 10:14 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, 10.2 hours before the alert went out and 163 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
- 415 m above ground
- 0-6 km bulk shear
- 48 kt
- 0-1 km storm-relative helicity
- 262 m²/s²
- 0-3 km storm-relative helicity
- 290 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
783 ACUS11 KWNS 231011 SWOMCD SPC MCD 231011 OHZ000-KYZ000-VAZ000-231115- MESOSCALE DISCUSSION 0057 NWS STORM PREDICTION CENTER NORMAN OK 0411 AM CST MON JAN 23 2012 AREAS AFFECTED...ERN KY / S-CNTRL OH CONCERNING...SEVERE THUNDERSTORM WATCH 9... VALID 231011Z - 231115Z THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH 9 CONTINUES. A CONTINUED SEVERE THUNDERSTORM WIND DAMAGE RISK REMAINS...ALBEIT LIMITED AND DIMINISHING...AS THE SQUALL LINE CONTINUES EWD ACROSS THE MID OH RIVER VALLEY THE NEXT FEW HOURS. A NEW SEVERE WATCH IS NOT ANTICIPATED FARTHER E OVER FAR ERN KY...SERN OH...AND WRN WV. RADAR MOSAIC AND LIGHTNING TRENDS HAVE SHOWN SUBSTANTIAL WEAKENING IN THE 55 MPH EWD MOVING SQUALL LINE. A STRONG PV ANOMALY IS QUICKLY APPROACHING THE REGION FROM THE SW...AND DESPITE APPRECIABLE LOW LEVEL STATIC STABILITY WITH FARTHER E EXTENT...THE LOW TOPPED LINE SHOULD MAINTAIN ORGANIZED STRUCTURE FOR THE NEXT FEW HOURS. HOWEVER...A CONTINUED WEAKENING TREND IS EXPECTED GIVEN THE QUALITY OF THE AIRMASS E OF THE QLCS. NONETHELESS...GIVEN THE STRENGTH OF LARGE SCALE FORCING FOR ASCENT AND AN ORGANIZED/MATURE QLCS...AN ISOLD STRONG WIND GUST/WIND DAMAGE RISK MAY CONTINUE IN THE NEAR TERM. ..SMITH.. 01/23/2012 ...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT... ATTN...WFO...RLX...MRX...JKL...ILN...LMK... LAT...LON 36688463 38758347 39598329 39418269 36708321 36688463
SPC 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, 11:46 AM EST | Mesoscale Discussion | SPC | Bath, Boone, Bourbon, Bracken, Campbell, Clark and 18 more | 89 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 Kentucky, 2012Mesoscale Discussions in Ohio, 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.