Alert archive / Indiana / Tornado Watches in 2011

Tornado Watch 375

May 25, 201151 counties in Indiana

The Storm Prediction Center issued this tornado watch at May 25, 2011, 6:44 PM EDT for 51 counties in Indiana. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: May 25, 2011, 6:44 PM EDT (22:44 UTC)
Expired: May 26, 2011, 1:13 AM EDT
In force: 6 hr
Issued by: the Storm Prediction Center
Particularly dangerous situation: Yes
Largest hail expected: 3 in
Strongest gust expected: 60 kt

All 51 counties

Adams County, IN, Bartholomew County, IN, Blackford County, IN, Boone County, IN, Brown County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Daviess County, IN, Decatur County, IN, Delaware County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jackson County, IN, Jay County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Martin County, IN, Miami County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Owen County, IN, Parke County, IN, Pulaski County, IN, Putnam County, IN, Randolph County, IN, Rush County, IN, Shelby County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, Wells County, IN, White County, IN

The radar

The Indianapolis radar (KIND), 25 km from the middle of the area, began a volume at 22:44 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.

What SPC expected

The probabilities SPC published with the watch, for the watch area over its life.

Two or more tornadoes: 90%
One or more EF2 to EF5 tornadoes: 60%
Ten or more severe wind reports: 60%
One or more gusts of 65 knots or more: 60%
Ten or more severe hail reports: 95%
One or more hailstones of 2 inches or more: 80%
Six or more combined severe hail and wind reports: 95%

Warnings issued inside it

58 tornado, severe thunderstorm and flash flood warnings for its counties while it was in force.

Issued	Product	Office	Counties	Lasted
May 25, 6:44 PM EDT	Tornado Warning	IND	Brown, Johnson, Morgan	46 min
May 25, 6:52 PM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Hendricks, Montgomery, Putnam	38 min
May 25, 6:57 PM EDT	Severe Thunderstorm Warning	IND	Daviess, Lawrence, Martin	48 min
May 25, 6:59 PM EDT	Severe Thunderstorm Warning	IND	Clay, Owen, Parke, Putnam	31 min
May 25, 7:06 PM EDT	Tornado Warning	IND	Hancock, Johnson, Marion, Shelby	39 min
May 25, 7:07 PM EDT	Tornado Warning	IND	Greene, Hendricks, Monroe, Morgan, Owen	38 min
May 25, 7:11 PM EDT	Tornado Warning	IND	Daviess, Greene, Lawrence, Martin, Monroe	49 min
May 25, 7:16 PM EDT	Tornado Warning	IND	Boone, Clay, Hendricks, Montgomery, Parke, Putnam	29 min
May 25, 7:25 PM EDT	Severe Thunderstorm Warning	IWX	Adams, Blackford, Grant, Huntington, Jay, Wells	65 min
May 25, 7:30 PM EDT	Severe Thunderstorm Warning	IND	Hamilton, Howard, Madison, Tipton	30 min
May 25, 7:32 PM EDT	Tornado Warning	IND	Bartholomew, Johnson, Shelby	43 min
May 25, 7:39 PM EDT	Severe Thunderstorm Warning	IND	Clinton, Fountain, Montgomery, Tippecanoe	51 min
May 25, 7:43 PM EDT	Tornado Warning	IND	Brown, Johnson, Monroe, Morgan	32 min
May 25, 7:49 PM EDT	Severe Thunderstorm Warning	IND	Johnson, Marion, Morgan	30 min
May 25, 7:50 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Hancock, Henry, Madison, Rush	40 min
May 25, 7:54 PM EDT	Tornado Warning	IND	Brown, Jackson, Lawrence	51 min
May 25, 7:57 PM EDT	Tornado Warning	IND	Hancock, Henry, Rush, Shelby	48 min
May 25, 7:59 PM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Hamilton, Howard, Tipton	27 min
May 25, 8:00 PM EDT	Severe Thunderstorm Warning	IWX	Grant, Huntington	30 min
May 25, 8:10 PM EDT	Tornado Warning	IND	Hancock, Johnson, Marion, Shelby	50 min
May 25, 8:12 PM EDT	Severe Thunderstorm Warning	IWX	Adams	27 min
May 25, 8:27 PM EDT	Flash Flood Warning	IWX	Grant	10 hr
May 25, 8:30 PM EDT	Tornado Warning	IND	Bartholomew, Brown, Decatur, Jackson, Jennings, Shelby	45 min
May 25, 8:41 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Hancock, Henry, Madison	34 min
May 25, 8:45 PM EDT	Tornado Warning	IND	Hancock, Rush, Shelby	15 min
May 25, 8:46 PM EDT	Tornado Warning	IND	Daviess, Knox	59 min
May 25, 8:53 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Parke, Vermillion, Warren	67 min
May 25, 8:56 PM EDT	Tornado Warning	IND	Greene, Monroe, Morgan, Owen	33 min
May 25, 9:00 PM EDT	Tornado Warning	IND	Greene, Sullivan, Vigo	60 min
May 25, 9:01 PM EDT	Severe Thunderstorm Warning	IND	Henry, Randolph, Rush	30 min
May 25, 9:11 PM EDT	Tornado Warning	IND	Fountain, Vermillion, Warren	34 min
May 25, 9:11 PM EDT	Tornado Warning	IND	Bartholomew, Decatur, Rush, Shelby	49 min
May 25, 9:22 PM EDT	Severe Thunderstorm Warning	IND	Clay, Fountain, Montgomery, Parke, Putnam, Tippecanoe and 3 more	53 min
May 25, 9:24 PM EDT	Tornado Warning	IND	Fountain, Montgomery, Parke, Vermillion	36 min
May 25, 9:27 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Morgan, Owen, Putnam	48 min
May 25, 9:27 PM EDT	Tornado Warning	IND	Tippecanoe, Warren	33 min
May 25, 9:32 PM EDT	Tornado Warning	IND	Clay, Greene, Owen, Putnam, Sullivan, Vigo	43 min
May 25, 9:35 PM EDT	Tornado Warning	IND	Montgomery, Parke, Putnam	25 min
May 25, 9:36 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Pulaski, White	54 min
May 25, 9:37 PM EDT	Tornado Warning	IND	Daviess, Knox, Martin	53 min
May 25, 9:48 PM EDT	Severe Thunderstorm Warning	IND	Henry, Rush	42 min
May 25, 9:51 PM EDT	Tornado Warning	IND	Boone, Carroll, Clay, Clinton, Fountain, Hendricks and 5 more	24 min
May 25, 10:04 PM EDT	Tornado Warning	IND	Brown, Greene, Lawrence, Martin, Monroe, Morgan and 1 more	41 min
May 25, 10:12 PM EDT	Tornado Warning	IND	Boone, Carroll, Clinton, Hendricks, Howard, Marion and 4 more	48 min
May 25, 10:25 PM EDT	Tornado Warning	IND	Bartholomew, Brown, Jackson, Johnson, Lawrence, Monroe and 1 more	50 min
May 25, 10:35 PM EDT	Tornado Warning	IND	Boone, Carroll, Clinton, Hamilton, Hendricks, Howard and 2 more	40 min
May 25, 10:43 PM EDT	Severe Thunderstorm Warning	IWX	Cass, Grant, Miami, Wabash	62 min
May 25, 10:55 PM EDT	Severe Thunderstorm Warning	IND	Bartholomew, Decatur, Hancock, Henry, Jackson, Jennings and 2 more	50 min
May 25, 10:58 PM EDT	Tornado Warning	IND	Bartholomew, Decatur, Jackson, Jennings	47 min
May 25, 11:06 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Hamilton, Hancock, Henry, Howard, Madison and 3 more	39 min
May 25, 11:08 PM EDT	Tornado Warning	IND	Hamilton, Howard, Madison, Tipton	41 min
May 25, 11:12 PM EDT	Tornado Warning	IND	Delaware, Hancock, Henry, Randolph, Rush, Shelby	48 min
May 25, 11:24 PM EDT	Tornado Warning	IND	Delaware, Hancock, Henry, Madison	36 min
May 25, 11:38 PM EDT	Severe Thunderstorm Warning	IWX	Blackford, Grant, Huntington, Jay, Wells	37 min
May 25, 11:49 PM EDT	Flash Flood Warning	IWX	Allen, DeKalb, Huntington, Wells	24 hr
May 25, 11:53 PM EDT	Tornado Warning	IWX	Adams, Blackford, Jay, Wells	16 min
May 25, 11:58 PM EDT	Severe Thunderstorm Warning	IND	Delaware, Randolph	27 min
May 26, 12:05 AM EDT	Severe Thunderstorm Warning	IWX	Jay	24 min

Discussions around it

SPC mesoscale discussions over the same counties from four hours before the watch to its end.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 10.7 hours before the alert went out and 186 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-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

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: 1832 J/kg
Mixed-layer CIN: -18 J/kg
Mixed-layer LCL: 561 m above ground
0-6 km bulk shear: 40 kt
0-1 km storm-relative helicity: 253 m²/s²
0-3 km storm-relative helicity: 222 m²/s²
Significant tornado parameter: 1.6
Supercell composite: 10.1

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

128 
WWUS20 KWNS 252239
SEL5
SPC WW 252239
INZ000-260600-

URGENT - IMMEDIATE BROADCAST REQUESTED
TORNADO WATCH NUMBER 375
NWS STORM PREDICTION CENTER NORMAN OK
635 PM EDT WED MAY 25 2011

THE NWS STORM PREDICTION CENTER HAS ISSUED A
TORNADO WATCH FOR PORTIONS OF

       LARGE PART OF CENTRAL AND SOUTHERN INDIANA

EFFECTIVE THIS WEDNESDAY NIGHT AND THURSDAY MORNING FROM 635 PM
UNTIL 200 AM EDT.

...THIS IS A PARTICULARLY DANGEROUS SITUATION...

DESTRUCTIVE TORNADOES...LARGE HAIL TO 3 INCHES IN DIAMETER...
THUNDERSTORM WIND GUSTS TO 70 MPH...AND DANGEROUS LIGHTNING ARE
POSSIBLE IN THESE AREAS.

THE TORNADO WATCH AREA IS APPROXIMATELY ALONG AND 70 STATUTE
MILES EAST AND WEST OF A LINE FROM 30 MILES SOUTH OF BLOOMINGTON
INDIANA TO 50 MILES NORTH NORTHWEST OF MUNCIE INDIANA.  FOR A
COMPLETE DEPICTION OF THE WATCH SEE THE ASSOCIATED WATCH OUTLINE
UPDATE (WOUS64 KWNS WOU5).

REMEMBER...A TORNADO WATCH MEANS CONDITIONS ARE FAVORABLE FOR
TORNADOES AND SEVERE THUNDERSTORMS IN AND CLOSE TO THE WATCH
AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR
THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS
AND POSSIBLE WARNINGS.

OTHER WATCH INFORMATION...THIS TORNADO WATCH REPLACES TORNADO
WATCH NUMBER 368. WATCH NUMBER 368 WILL NOT BE IN EFFECT AFTER
635 PM EDT. CONTINUE...WW 370...WW 371...WW 372...WW 373...WW
374...

DISCUSSION...SUPERCELLS ARE EXPECTED TO INCREASE AND SPREAD ACROSS
THE WATCH THIS EVENING GIVEN THE VERY FAVORABLE SHEAR PROFILES
COUPLED WITH THE LARGE AMOUNT OF INSTABILITY AVAILABLE. E/W BOUNDARY
ACROSS CENTRAL IND WILL BE A FOCUS FOR ENHANCED SHEAR/CONVERGENCE.
TORNADOS POSSIBLY STRONG TO VIOLENT WILL BE A THREAT WELL INTO THE
EARLY NIGHTTIME HOURS.

AVIATION...TORNADOES AND A FEW SEVERE THUNDERSTORMS WITH HAIL
SURFACE AND ALOFT TO 3 INCHES. EXTREME TURBULENCE AND SURFACE
WIND GUSTS TO 60 KNOTS. A FEW CUMULONIMBI WITH MAXIMUM TOPS TO
550. MEAN STORM MOTION VECTOR 24040.


...HALES

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
May 25, 1:48 AM EDT	Mesoscale Discussion	SPC	Adams, Alexander, Bond, Brown, Calhoun, Cass and 23 more	57 min
May 25, 2:22 AM EDT	Tornado Watch	SPC	Adams, Brown, Calhoun, Cass, Fulton, Greene and 16 more	7 hr
May 25, 5:58 AM EDT	Mesoscale Discussion	SPC	Bond, Brown, Calhoun, Cass, Champaign, Christian and 45 more	92 min
May 25, 6:46 AM EDT	Tornado Watch	SPC	Bond, Champaign, Christian, Clark, Clay, Clinton and 35 more	7 hr
May 25, 8:31 AM EDT	Mesoscale Discussion	SPC	Alexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 13 more	59 min
May 25, 8:48 AM EDT	Mesoscale Discussion	SPC	Champaign, Clark, Clay, Clinton, Coles, Crawford and 18 more	87 min
May 25, 9:33 AM EDT	Mesoscale Discussion	SPC	Champaign, DeWitt, Douglas, Edgar, Ford, Iroquois and 3 more	87 min
May 25, 11:18 AM EDT	Mesoscale Discussion	SPC	Bond, Clark, Clay, Clinton, Crawford, Cumberland and 12 more	57 min
May 25, 11:37 AM EDT	Tornado Watch	SPC	Adams, Brown, Pike	7 hr
May 25, 12:02 PM EDT	Mesoscale Discussion	SPC	Alexander, Franklin, Gallatin, Hamilton, Hardin, Jackson and 13 more	28 min
May 25, 12:09 PM EDT	Tornado Watch PDS	SPC	Alexander, Bond, Calhoun, Christian, Clark, Clay and 41 more	10 hr
May 25, 3:31 PM EDT	Tornado Watch	SPC	Bureau, Cass, Champaign, DeKalb, DeWitt, Ford and 33 more	7 hr
May 25, 3:32 PM EDT	Mesoscale Discussion	SPC	Calhoun, Greene, Jersey, Macoupin, Pike, Scott	58 min
May 25, 4:10 PM EDT	Mesoscale Discussion	SPC	Alexander, Franklin, Gallatin, Hardin, Jackson, Johnson and 6 more	95 min
May 25, 6:48 PM EDT	Mesoscale Discussion	SPC	Bureau, Champaign, DeKalb, DeWitt, Douglas, Ford and 19 more	117 min
May 25, 7:25 PM EDT	Mesoscale Discussion	SPC	Alexander, Clay, Clinton, Edwards, Franklin, Gallatin and 20 more	2 hr
May 25, 9:50 AM EDT	Tornado Watch	SPC	Adams, Allen, Bartholomew, Blackford, Boone, Brown and 57 more	9 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, 6:19 PM EDT	Mesoscale Discussion	SPC	Bartholomew, Blackford, Boone, Brown, Clay, Clinton and 45 more	86 min
May 25, 4:45 PM EDT	Mesoscale Discussion	SPC	Allen, Ashland, Ashtabula, Auglaize, Carroll, Columbiana and 37 more	60 min

Nearby

Tornado Watches in Indiana, 2011 Every tornado watch 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.