Tornadoes · United States · Indiana · 2011

EF1 tornado, Kirby, Indiana, May 25, 2011

This EF1 tornado ran 1.0 miles across Monroe County on May 25, 2011, touching down at 10:14 PM EDT and reaching 150 yards wide. It killed nobody, and did $200,000 of property damage.

The rating scale

Tracks are drawn in the color of the rating. The Enhanced Fujita scale rates the damage rather than measuring the wind: the speeds are what that damage is taken to imply.

  1. EF065 to 85 mph

    Light damage. Surface peeled off some roofs, gutters and siding damaged, branches broken, shallow-rooted trees pushed over.

  2. EF186 to 110 mphthis tornado

    Moderate damage. Roofs badly stripped, mobile homes overturned or badly damaged, exterior doors lost, windows broken.

  3. EF2111 to 135 mph

    Considerable damage. Roofs torn off well-built houses, frame homes shifted on their foundations, mobile homes destroyed, large trees snapped or uprooted, cars lifted off the ground.

  4. EF3136 to 165 mph

    Severe damage. Whole stories of well-built houses destroyed, large buildings badly damaged, trains overturned, trees debarked, heavy cars lifted and thrown.

  5. EF4166 to 200 mph

    Devastating damage. Well-built houses leveled, structures with weak foundations moved some distance, cars thrown and large missiles generated.

  6. EF5over 200 mph

    Incredible damage. Strong frame houses swept off their foundations, car-sized missiles thrown more than 100 meters, steel-reinforced concrete badly damaged, high-rise buildings deformed.

  7. Unrated

    The survey recorded a tornado but could not put a number on it, most often because it crossed open country and damaged nothing a rating can be read from.

The record

Rating
EF1
Date
May 25, 2011
Touchdown
10:14 PM EDT (02:14 UTC)
Lifted
10:16 PM EDT (02:16 UTC)
On the ground
2 minutes
Path length
1.0 miles (1.6 km)
Path width
150 yards (137 m)
Deaths
0
Injuries
0
Property damage
$200,000
County
Monroe County
Touchdown point
39.125, -86.611
Lift-off point
39.134, -86.597
Record number
1105252014-01

What the Weather Service recorded

The approach of a strong low pressure system from the west set the stage for a significant severe weather outbreak across central Indiana on May 25th. Eight tornadoes touched down in central Indiana, with an additional one moving into the area from southern Indiana. In addition, widespread wind damage and large hail impacted the area. Straight line winds to over 70 mph impacted the area as well, knocking down trees, power lines, as well as damaging structures and blowing over trucks. Straight line wind damage was noted near the tornado paths as well. Hail into the 3 to 4 inch range fell from some of the storms, causing damage. The large hail stones were also blown into structures by the strong straight line winds, causing additional damage.

A brief EF-1 tornado overturned and destroyed several mobile homes just west of Bloomington. The Bloomington tornado damage was along SR45. The same storm also produced a broad, long swath of significant straight-line wind damage along SR45 to SR37 and continued east across the south side of Bloomington. Winds within this path were estimated at over 80 mph.

From NOAA NCEI's Storm Events Database, the narrative the local forecast office wrote for Storm Data.

The warnings

10 minutes of warning. NWS IND issued a tornado warning for this county at 02:04 UTC, 10 minutes before the tornado touched down, in force until 02:45 UTC.

The county was under a tornado watch, issued at 22:45 UTC and running to 03:49 UTC.

Issued (UTC)ExpiredProductOffice
13:52 UTC22:45 UTCTornado WatchIND
19:26 UTC20:15 UTCSevere Thunderstorm WarningIND
19:49 UTC20:34 UTCSevere Thunderstorm WarningIND
20:33 UTC05:14 UTCFlash Flood WatchIND
21:31 UTC22:15 UTCSevere Thunderstorm WarningIND
21:46 UTC22:30 UTCTornado WarningIND
22:25 UTC22:57 UTCTornado WarningIND
22:42 UTC23:15 UTCSevere Thunderstorm WarningIND
22:45 UTC03:49 UTCTornado WatchIND
23:07 UTC23:37 UTCTornado WarningIND
23:11 UTC00:00 UTCTornado WarningIND
23:43 UTC23:54 UTCTornado WarningIND
00:56 UTC01:13 UTCTornado WarningIND
02:04 UTC02:45 UTCTornado WarningIND
02:25 UTC02:53 UTCTornado WarningIND

Every warning and watch covering the touchdown point that day, from the Iowa Environmental Mesonet's archive of National Weather Service products. Lead time is measured from the issue of the warning in force to the touchdown time in the database, both of which were recorded to the minute by different people.

The forecast that day

The Storm Prediction Center had this point in a Moderate Risk, with a 0.15 chance of a tornado within 25 miles, in the hatched area where significant tornadoes were expected. The outlook in force was issued at 00:57 UTC.

SPC's Day 1 convective outlook as it stood when the tornado began, read at the touchdown point. The same archive is on the radar archive.

The air that afternoon

The radiosonde launches on either side of the tornado, from the nearest station that was launching then, drawn and analyzed the way Storm Lab does: the same diagram, the same parcel and shear definitions SPC's mesoanalysis uses.

Lincoln, IL (KILX), 12:00Z

9.8 hours after it, 205 km from the path. May 26, 2011.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2011-05-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel lifted from the surface. Mixed-layer CAPE 0 joules per kilogram, CIN 0, lifted condensation level 472 meters above ground. Wind barbs in knots down the right edge.LCLEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed. The warm shading is its CAPE, the cool shading the inhibition it has to break through.
HodographHodograph, Lincoln, IL at 12:00Z on 2011-05-26The wind through the lowest 10 kilometers as a curve, rings every 10 meters per second labeled in knots. Zero to 1 km storm-relative helicity 67 square meters per square second, 0 to 6 km bulk shear 27 knots.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. RM and LM are the right and left moving storms Bunkers' method gives; the shaded area is the 0 to 1 km storm-relative helicity.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
0 J/kg
Surface CAPE
3 J/kg
Mixed-layer LCL
472 m above ground
0-6 km bulk shear
27 kt
0-1 km bulk shear
12 kt
0-1 km storm-relative helicity
67 m²/s²
0-3 km storm-relative helicity
86 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0
0-3 km lapse rate
4.4 K/km

Open this sounding in Storm Lab

The surface observations

Bloomington (BMG), 2 km from the path, in the two hours either side.

Time (UTC)Temp (°F)Dew point (°F)WindGust (kt)Pressure (mb)Weather
00:53 UTC7168130° 6 kt1000.7
01:53 UTC7168140° 6 kt999.7
02:16 UTC71.666.2290° 30 kt461002.4VCTS SQ
02:25 UTC62.660.8250° 12 kt461004.1+TSRA BR
02:29 UTC62.660.8250° 12 kt241004.1+TSRA BR
02:35 UTC62.660.8280° 12 kt211003.4+TSRA BR
02:53 UTC6260220° 9 kt1004.7TSRA BR
03:19 UTC62.660.8150° 5 kt1004.4VCTS RA BR
03:35 UTC62.660.8120° 6 kt1003.7VCTS RA BR
03:53 UTC6160130° 6 kt1003.4TSRA

From the Iowa Environmental Mesonet's archive of airport observations.

The radar

The Indianapolis radar (KIND), 70 km away, was scanning. The volume nearest the touchdown began at 02:15 UTC.

Open the radar archive at this moment, over the track

Reflectivity and velocity, decoded from the Level II archive in the browser. Volumes take a few seconds to open the first time.

What was reported nearby

Local storm reports within 60 km of the path, in the three hours either side.

Time (UTC)ReportWhereCountyRemark
23:18 UTCFUNNEL CLOUDEllettsvilleMonroe, INSPOTTER WAS ON MAPLE GROVE RD.
23:20 UTCHAIL 1.253 S ParagonMorgan, INGETTING LARGER AS FALLING.
23:25 UTCHAIL 1.75ParagonMorgan, IN
23:26 UTCHAIL 11 E StinesvilleMonroe, IN
23:46 UTCFUNNEL CLOUDMitchellLawrence, IN
23:49 UTCHAIL 2.75BedfordLawrence, INPEA TO BASEBALL SIZE HAIL.
23:50 UTCHAIL 1.254 Nnw BedfordLawrence, IN
23:54 UTCHAIL 2.75BedfordLawrence, INSOUTHERN BEDFORD.
00:00 UTCTORNADOBedfordLawrence, IN
00:12 UTCTORNADO6 Nw BrownstownJackson, INPOSSIBLE DEBRIS BALL ON RADAR
00:17 UTCTORNADO9 Ene BedfordLawrence, IN
00:46 UTCFUNNEL CLOUD4 Se WaymansvilleJackson, IN
00:49 UTCHAIL 13 Sw ColumbusBartholomew, IN
00:57 UTCHAIL 1.75ColumbusBartholomew, INCENTRAL AVE AND US 31.
01:01 UTCFUNNEL CLOUD4 S ColumbusBartholomew, INWALL CLOUD WITH NO ROTATION AT US 31 AND 400 S.
01:01 UTCHAIL 1.75ColumbusBartholomew, INROCKY FORD AND 330 CENTRAL.
01:25 UTCTSTM WND GST 70W DuggerSullivan, IN
02:02 UTCTSTM WND GST 534 Sw BloomingtonMonroe, IN
02:05 UTCTSTM WND GST 70LoogooteeMartin, IN
02:15 UTCTSTM WND DMGBloomingtonMonroe, INMANY TREES AND LIMBS DOWN...ONE WAS 2 FEET IN DIAMETER AT 2ND ST AND WAYMAN.
02:15 UTCTSTM WND GST 65BloomingtonMonroe, IN
02:22 UTCTORNADO2 S OrleansOrange, INEF-2 WITH 115 MPH WINDS. TWO BRICK HOMES AND ONE WOOD FRAME HOME HEAVILY DAMAGED. WOOD BARN AND METAL OUTBUILDINGS DESTROYED. 4.7 MILE LONG PATH.
02:25 UTCTSTM WND GST 69OdonDaviess, IN
02:28 UTCTORNADO2 Ne LeipsicOrange, INEF-1 WITH 100 MPH WINDS. LARGE WOOD BARN DESTROYED. MANY TREES SNAPPED OR UPROOTED. 3.2 MILE PATH.
02:30 UTCTSTM WND DMGCoal CityOwen, IN14132 STATE HIGHWAY 246. BARN DESTROYED AND BLOWN ACROSS ROAD. POWER LINES DOWN. TREES DOWN AND LAW ENFORCEMENT REPORTS THE TOPS ARE TWISTED. TIME ESTIMATED.
02:31 UTCTORNADO3 W Mount CarmelWashington, INEF-1 WITH 95 MPH WINDS. METAL OUTBUILDING HEAVILY DAMAGED. MANY TREES SNAPPED OR UPROOTED.
02:45 UTCTSTM WND DMGBloomingtonMonroe, INTREES DOWN ON SOUTH SIDE OF BLOOMINGTON.
02:50 UTCTSTM WND DMGBloomingtonMonroe, INSEVERAL LARGE TREES DOWN.
02:51 UTCTSTM WND GST 50BrownstownJackson, IN
02:56 UTCTSTM WND GST 60EdinburghJohnson, IN
03:22 UTCFLASH FLOODBedfordLawrence, INSEVERAL ROADS FLOODED SEVERAL INCHES DEEP.

From the Iowa Environmental Mesonet's archive of National Weather Service local storm reports.

This ground now

The live radar over the trackEvery 2011 tornado in IndianaEvery tornado in Indiana since 1950Warnings in force in Indiana nowThe forecast where you are

The other tornadoes of May 25, 2011

93 more were confirmed in the United States that day.

DateTimeRatingWherePath (mi)Width (yd)DeathsInjuriesDamage
May 251:30 AM CDTEF1Webster, MO9.3100$20,000
May 257:35 AM CDTEF1Macon, IL1.075$165,000
May 257:39 AM CDTEF1Macon, IL1.575$100,000
May 259:04 AM CDTEF1Kankakee, IL5.850$250,000
May 259:13 AM CDTEF0Newton, IN0.120$25,000
May 259:19 AM CDTEF2Newton, IN1.9300$50,000
May 259:24 AM CDTEF1Jasper, IN2.9100$500
May 259:26 AM CDTEF1Jasper, IN1.9100$50,000
May 2510:45 AM EDTEF0Pulaski, IN0.850
May 2510:45 AM CDTEF0Miami, KS0.140$5,000
May 2511:10 AM CDTEF0Johnson, KS0.760$10,000
May 2511:22 AM CDTEF0Johnson, KS0.140
May 2511:35 AM CDTEF0Cass, MO0.140
May 2511:38 AM CDTEF0Johnson, KS0.140
May 2512:22 PM CDTEF2Pettis, MO2.150020$4.0 million
May 2512:33 PM CDTEF0Clay, MO0.140
May 2512:45 PM CDTEF0Clay, MO0.140
May 2512:52 PM CDTEF0Pettis, MO0.140
May 251:04 PM CDTEF0Cooper, MO0.140
May 251:07 PM CDTEF0Lafayette, MO0.140
May 252:15 PM CDTEF1Montgomery, MO7.1100
May 253:26 PM EDTEF0Van Wert, OH0.140
May 252:56 PM CDTEF1Oregon, MO2.5100$20,000
May 253:49 PM CDTEF3Carter, MO47.41,2002$800,000
May 254:13 PM CDTEF1Jackson, AR5.5500$40,000
May 255:15 PM EDTEF1Decatur, IN0.8600$500,000
May 255:20 PM EDTEF1Decatur, IN0.1400$250,000
May 254:35 PM CDTEF1Madison, MO5.540
May 254:37 PM CDTEF1Wayne, MO17.8150$70,000
May 254:44 PM CDTEF0Carter, MO0.550$2,000
May 254:45 PM CDTEF1Des Moines, IA4.8100$250,000
May 254:46 PM CDTEF1Madison, MO5.3440
May 254:47 PM CDTEF1Madison, MO4.3580
May 254:51 PM CDTEF0Perry, MO0.360$3,000
May 254:58 PM CDTEF0Ripley, MO0.750
May 256:00 PM EDTEF1Huron, OH8.050$250,000
May 255:00 PM CDTEF1Des Moines, IA3.650$50,000
May 255:14 PM CDTEF0Butler, MO0.740
May 256:14 PM EDTEF0Hardin, OH0.225
May 255:26 PM CDTEF1Bollinger, MO13.0250$30,000
May 256:06 PM CDTEF0McLean, IL0.925$8,000
May 256:09 PM CDTEF1McLean, IL10.375$10,000
May 257:10 PM EDTEF0Montgomery, OH0.125$5,000
May 256:18 PM CDTEF1Cape Girardeau, MO2.1250$20,000
May 256:18 PM CDTEF0St. Francis, AR1.1100
May 256:28 PM CDTEF2Jefferson, IL13.5250$4.0 million
May 256:30 PM CDTEF0Scott, MO0.450$1,000
May 257:30 PM EDTEF0Summit, OH4.250$200,000
May 256:39 PM CDTEF1Union, IL2.0125$150,000
May 256:40 PM CDTEF1Pulaski, IL5.5250$50,000
May 256:45 PM CDTEF1Pulaski, IL10.0120$40,000
May 256:48 PM CDTEF1Crittenden, AR2.5100$500,000
May 256:55 PM CDTEF2Pulaski, IL19.9325$255,000
May 256:58 PM CDTEF0Champaign, IL0.215$5,000
May 257:58 PM EDTEF3Lawrence, IN6.8300$150,000
May 255:08 PM PDTEF1Glenn, CA21.6120$200,000
May 255:12 PM PDTEF1Glenn, CA26.4120$150,000
May 257:18 PM CDTEF1Clay, IL1.075$510,000
May 257:35 PM CDTEF0Richland, IL0.210
May 257:57 PM CDTEF2Crawford, IL5.5200$920,000

All 94 of them

What this means

Ratings are the survey's, read off the damage rather than measured; the rating scale is above. Tornado counts rise through the record as reporting improved, so a year in the 1950s is not comparable with one today except for the strongest tornadoes, which were always noticed.

Sources

NOAA Storm Prediction Center tornado database, 1950-2025, the official record kept by NOAA's Storm Prediction Center.