Alert archive / Indiana / Mesoscale Discussions in 2011
Mesoscale Discussion 965
The Storm Prediction Center issued this mesoscale discussion at May 25, 2011, 6:19 PM EDT for 51 counties in Indiana; Trimble County, Kentucky. It was in force for 86 min.
The area
The outline as issued.
The facts
- Issued
- May 25, 2011, 6:19 PM EDT (22:19 UTC)
- Expired
- May 25, 2011, 7:45 PM EDT
- In force
- 86 min
- Issued by
- the Storm Prediction Center
All 52 counties
Bartholomew County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Dearborn County, IN, Decatur County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Franklin County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Ohio County, IN, Orange County, IN, Owen County, IN, Parke County, IN, Putnam County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Sullivan County, IN, Switzerland County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Vermillion County, IN, Vigo County, IN, Washington County, IN, Wayne County, IN, Trimble County, KY
The radar
The Indianapolis radar (KIND), 37 km from the middle of the area, began a volume at 22:20 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 watches that followed
Watches SPC issued over any of the same counties within four hours of this discussion.
The nearest sounding before it
Cncnati-Daytn, OH (KILN), launched 12:00Z, 10.3 hours before the alert went out and 207 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
- 49 J/kg
- Mixed-layer CIN
- -199 J/kg
- Mixed-layer LCL
- 1232 m above ground
- 0-6 km bulk shear
- 31 kt
- 0-1 km storm-relative helicity
- 80 m²/s²
- 0-3 km storm-relative helicity
- 166 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.2
The text
As transmitted, in the capitals the NWS used until 2016.
947
ACUS11 KWNS 252219
SWOMCD
SPC MCD 252219
KYZ000-INZ000-ILZ000-252345-
MESOSCALE DISCUSSION 0965
NWS STORM PREDICTION CENTER NORMAN OK
0519 PM CDT WED MAY 25 2011
AREAS AFFECTED...INDIANA
CONCERNING...TORNADO WATCH 368...
VALID 252219Z - 252345Z
THE SEVERE WEATHER THREAT FOR TORNADO WATCH 368 CONTINUES.
A NEW TORNADO WATCH WILL BE ISSUED SOON FOR MUCH OF CNTRL INDIANA.
SURFACE MAP SHOWS AN OUTFLOW BOUNDARY EXTEND ACROSS CNTRL IND JUST N
OF INDIANAPOLIS. S OF THIS BOUNDARY...A STRONG LOW LEVEL JET WILL
CONTINUE TO BRING MOIST AND UNSTABLE AIR NWD. WITH STRONG FORCING
APPROACHING AND FAVORABLE SHEAR PROFILES ALREADY IN
PLACE...SUPERCELLS MOVING INTO THE REGION FROM THE SW WILL HAVE THE
POTENTIAL TO PRODUCE STRONG TORNADOES.
..JEWELL.. 05/25/2011
...PLEASE SEE WWW.SPC.NOAA.GOV FOR GRAPHIC PRODUCT...
ATTN...WFO...ILN...LMK...IWX...IND...PAH...ILX...
LAT...LON 38728752 40168749 40538674 40618567 40468522 40158492
39068490 38768491 38438592 38438634 38558729 38728752SPC that day
Everything else SPC issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 25, 6:46 AM EDT | Tornado Watch | SPC | Benton, Jasper, Lake, Newton, Porter | 7 hr |
| May 25, 8:31 AM EDT | Mesoscale Discussion | SPC | Gibson, Posey, Vanderburgh, Warrick | 59 min |
| May 25, 8:48 AM EDT | Mesoscale Discussion | SPC | Benton, Boone, Brown, Carroll, Cass, Clay and 35 more | 87 min |
| May 25, 9:33 AM EDT | Mesoscale Discussion | SPC | Bartholomew, Benton, Blackford, Boone, Brown, Carroll and 43 more | 87 min |
| May 25, 9:50 AM EDT | Tornado Watch | SPC | Adams, Allen, Bartholomew, Blackford, Boone, Brown and 57 more | 9 hr |
| May 25, 11:18 AM EDT | Mesoscale Discussion | SPC | Brown, Clay, Crawford, Daviess, Dubois, Floyd and 15 more | 57 min |
| May 25, 12:02 PM EDT | Mesoscale Discussion | SPC | Gibson, Perry, Posey, Spencer, Vanderburgh, Warrick | 28 min |
| May 25, 12:09 PM EDT | Tornado Watch | SPC | Clark, Crawford, Dubois, Floyd, Gibson, Harrison and 10 more | 10 hr |
| May 25, 1:26 PM EDT | Mesoscale Discussion | SPC | Adams, Allen, Blackford, DeKalb, Delaware, Grant and 16 more | 94 min |
| May 25, 1:55 PM EDT | Tornado Watch | SPC | Dearborn, Fayette, Franklin, Ohio, Ripley, Switzerland and 2 more | 8 hr |
| May 25, 3:31 PM EDT | Tornado Watch | SPC | Benton, Jasper, Newton | 7 hr |
| May 25, 6:44 PM EDT | Tornado Watch | SPC | Adams, Bartholomew, Blackford, Boone, Brown, Carroll and 45 more | 6 hr |
| May 25, 7:25 PM EDT | Mesoscale Discussion | SPC | Clark, Crawford, Daviess, Dubois, Floyd, Gibson and 12 more | 2 hr |
| May 25, 1:48 AM EDT | Mesoscale Discussion | SPC | Ballard, Carlisle, Fulton, Hickman | 57 min |
| May 25, 4:10 PM EDT | Mesoscale Discussion | SPC | Ballard, Caldwell, Calloway, Carlisle, Christian, Crittenden and 18 more | 95 min |
Nearby
Mesoscale Discussions in Indiana, 2011Mesoscale Discussions in Kentucky, 2011Every mesoscale discussion in 2011
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.