Alert archive / Indiana / Mesoscale Discussions in 2016

Mesoscale Discussion 943

June 15, 20164 states

The Storm Prediction Center issued this mesoscale discussion at Jun 15, 2016, 6:01 PM CDT for 4 states. It was in force for 59 min.

The area

The outline as issued.

The facts

Issued
Jun 15, 2016, 6:01 PM CDT (23:01 UTC)
Expired
Jun 15, 2016, 7:00 PM CDT
In force
59 min
Issued by
the Storm Prediction Center
All 55 counties

Wabash County, IL, Bartholomew County, IN, Brown County, IN, Clark County, IN, Crawford County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Dubois County, IN, Fayette County, IN, Franklin County, IN, Gibson County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Ohio County, IN, Orange County, IN, Pike County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Switzerland County, IN, Union County, IN, Washington County, IN, Wayne County, IN, Boone County, KY, Bracken County, KY, Campbell County, KY, Carroll County, KY, Gallatin County, KY, Grant County, KY, Henry County, KY, Kenton County, KY, Mason County, KY, Oldham County, KY, Owen County, KY, Pendleton County, KY, Trimble County, KY, Brown County, OH, Butler County, OH, Champaign County, OH, Clark County, OH, Clermont County, OH, Clinton County, OH, Greene County, OH, Hamilton County, OH, Miami County, OH, Montgomery County, OH, Preble County, OH, Warren County, OH

The radar

The Indianapolis radar (KIND), 79 km from the middle of the area, began a volume at 23:02 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, 11.0 hours before the alert went out and 181 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.

Skew-T log-pSkew-T log-p diagram, Cncnati-Daytn, OH at 12:00Z on 2016-06-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 80 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Cncnati-Daytn, OH at 12:00Z on 2016-06-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.193958Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
80 J/kg
Mixed-layer CIN
-139 J/kg
Mixed-layer LCL
1133 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
83 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

027 
ACUS11 KWNS 152301
SWOMCD
SPC MCD 152301 
OHZ000-KYZ000-INZ000-ILZ000-160000-

MESOSCALE DISCUSSION 0943
NWS STORM PREDICTION CENTER NORMAN OK
0601 PM CDT WED JUN 15 2016

AREAS AFFECTED...PORTIONS OF SOUTHERN IND...SOUTHWESTERN OH...AND
NORTHERN KY

CONCERNING...SEVERE THUNDERSTORM WATCH 258...260...

VALID 152301Z - 160000Z

THE SEVERE WEATHER THREAT FOR SEVERE THUNDERSTORM WATCH
258...260...CONTINUES.

SUMMARY...DECREASING THREAT FOR SEVERE WIND GUSTS THIS EVENING...AND
NO NEW/DOWNSTREAM WATCH ISSUANCE IS ANTICIPATED.

DISCUSSION...RECENT MRMS DATA DEPICT A CONSIDERABLE DOWNWARD TREND
IN CONVECTION ACROSS MUCH OF WW 260 AND NRN PARTS OF WW 258...AS
STORMS ENCOUNTER A STABLE AIR MASS IN THE WAKE OF A CONVECTIVE
SYSTEM TO THE SOUTH. INDEED...THIS TREND IS LIKELY TO CONTINUE OVER
THE NEXT FEW HOURS. THE GREATEST POTENTIAL FOR A FEW SEVERE GUSTS
WILL LIKELY BE OVER FAR NORTHERN KY AND SOUTHWESTERN OH...WHERE THE
AIR MASS AHEAD OF A BOWING CLUSTER REMAINS SOMEWHAT MORE PRISTINE.
HERE...STEEPER LOW-LEVEL LAPSE RATES MAY ENHANCE DOWNDRAFT/COLD POOL
POTENTIAL...MAINTAINING A NARROW WINDOW FOR STRONGER WINDS.
NONETHELESS...EVEN HERE CONVECTION SHOULD GRADUALLY WEAKEN OVER THE
NEXT FEW HOURS...AND DOWNSTREAM WATCH ISSUANCE IS NOT ANTICIPATED.

..PICCA.. 06/15/2016

...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...

ATTN...WFO...ILN...LMK...IND...PAH...ILX...

LAT...LON   38548803 39468604 40318398 40008355 38558369 38178765
            38548803

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 14, 7:18 PM CDTMesoscale DiscussionSPCChristian, Clay, DeWitt, Effingham, Fayette, Logan and 7 more117 min
Jun 14, 8:36 PM CDTMesoscale DiscussionSPCCarroll, Jo Daviess, Whiteside84 min
Jun 14, 11:27 PM CDTMesoscale DiscussionSPCDeKalb, Kane, Kendall, LaSalle, Lee, Ogle93 min
Jun 15, 12:05 PM CDTMesoscale DiscussionSPCAlexander, Gallatin, Hardin, Johnson, Massac, Pope and 3 more85 min
Jun 15, 12:39 PM CDTSevere Thunderstorm WatchSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 10 more8 hr
Jun 15, 2:23 PM CDTMesoscale DiscussionSPCChampaign, Christian, Clark, Coles, Cumberland, Douglas and 6 more97 min
Jun 15, 3:00 PM CDTSevere Thunderstorm WatchSPCClark, Clay, Coles, Crawford, Cumberland, Douglas and 9 more5 hr
Jun 15, 3:52 PM CDTMesoscale DiscussionSPCClark, Floyd, Harrison, Jefferson, Scott53 min
Jun 15, 1:12 PM CDTMesoscale DiscussionSPCFloyd, Harlan, Johnson, Knott, Lawrence, Leslie and 5 more93 min

Nearby

Mesoscale Discussions in Indiana, 2016Mesoscale Discussions in Kentucky, 2016Mesoscale Discussions in Ohio, 2016Every mesoscale discussion in 2016

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.