Alert archive / Indiana / Tornado Watches in 2013

Tornado Watch 267

May 31, 2013Ford County, Iroquois County, Illinois; 67 counties in Indiana

The Storm Prediction Center issued this tornado watch at May 31, 2013, 10:11 PM CDT for Ford County, Iroquois County, Illinois; 67 counties in Indiana. It was in force for 5 hr.

The area

The outline as issued.

The facts

Issued
May 31, 2013, 10:11 PM CDT (03:11 UTC)
Expired
Jun 1, 2013, 3:04 AM CDT
In force
5 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
70 kt
All 69 counties

Ford County, IL, Iroquois County, IL, Adams County, IN, Allen County, IN, Bartholomew County, IN, Benton 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, Dearborn County, IN, Decatur County, IN, DeKalb County, IN, Delaware County, IN, Fayette County, IN, Fountain County, IN, Franklin 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, Jasper County, IN, Jay County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Kosciusko County, IN, Lawrence County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Martin County, IN, Miami County, IN, Monroe County, IN, Montgomery County, IN, Morgan County, IN, Newton County, IN, Noble County, IN, Owen County, IN, Parke County, IN, Pulaski County, IN, Putnam County, IN, Randolph County, IN, Ripley County, IN, Rush County, IN, Shelby County, IN, Starke County, IN, Sullivan County, IN, Tippecanoe County, IN, Tipton County, IN, Union County, IN, Vermillion County, IN, Vigo County, IN, Wabash County, IN, Warren County, IN, Wayne County, IN, Wells County, IN, White County, IN, Whitley County, IN

The radar

The Indianapolis radar (KIND), 34 km from the middle of the area, began a volume at 03:14 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.

What SPC expected

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

Two or more tornadoes
40%
One or more EF2 to EF5 tornadoes
20%
Ten or more severe wind reports
80%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
30%
One or more hailstones of 2 inches or more
10%
Six or more combined severe hail and wind reports
95%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
May 31, 10:25 PM CDTFlash Flood WarningLOTFord, Iroquois, Livingston6 hr
May 31, 10:27 PM CDTSevere Thunderstorm WarningLOTFord, Iroquois, Livingston63 min
May 31, 11:11 PM CDTSevere Thunderstorm WarningLOTIroquois79 min
May 31, 11:15 PM CDTSevere Thunderstorm WarningINDFountain, Parke, Vermillion, Warren30 min
May 31, 11:15 PM CDTFlash Flood WarningIWXCass, Fulton, Kosciusko, Miami, Pulaski, Wabash and 1 more6 hr
May 31, 11:25 PM CDTSevere Thunderstorm WarningINDClay, Greene, Owen, Sullivan, Vigo35 min
May 31, 11:42 PM CDTSevere Thunderstorm WarningIWXCass, Fulton, Pulaski, Starke, White63 min
May 31, 11:44 PM CDTSevere Thunderstorm WarningINDFountain, Montgomery, Parke, Putnam, Tippecanoe, Vermillion and 1 more46 min
May 31, 11:48 PM CDTFlash Flood WarningIWXAllen, Huntington, Kosciusko, Wabash, Whitley6 hr
May 31, 11:57 PM CDTSevere Thunderstorm WarningINDClay, Greene, Owen, Putnam, Sullivan, Vigo48 min
Jun 1, 12:07 AM CDTSevere Thunderstorm WarningINDBoone, Carroll, Clinton, Howard, Montgomery, Tippecanoe and 1 more38 min
Jun 1, 12:10 AM CDTSevere Thunderstorm WarningIWXFulton, LaPorte, Marshall, Pulaski, Starke50 min
Jun 1, 12:27 AM CDTSevere Thunderstorm WarningIWXCass, Fulton, Grant, Kosciusko, Marshall, Miami and 2 more63 min
Jun 1, 12:28 AM CDTSevere Thunderstorm WarningINDBoone, Hendricks, Montgomery, Parke, Putnam47 min
Jun 1, 12:42 AM CDTSevere Thunderstorm WarningINDBoone, Carroll, Clinton, Hamilton, Howard, Montgomery and 1 more48 min
Jun 1, 12:55 AM CDTSevere Thunderstorm WarningIWXElkhart, Kosciusko, Marshall, Saint Joseph50 min
Jun 1, 1:20 AM CDTSevere Thunderstorm WarningIWXAdams, Allen, Blackford, Grant, Huntington, Jay and 2 more55 min
Jun 1, 1:27 AM CDTSevere Thunderstorm WarningINDBoone, Delaware, Hamilton, Howard, Madison, Tipton48 min
Jun 1, 1:30 AM CDTSevere Thunderstorm WarningINDDaviess, Greene, Knox, Sullivan30 min
Jun 1, 2:00 AM CDTSevere Thunderstorm WarningINDDaviess, Greene, Lawrence, Martin, Monroe30 min
Jun 1, 2:29 AM CDTSevere Thunderstorm WarningINDMorgan31 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 00:00Z, 3.2 hours before the alert went out and 170 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, Lincoln, IL at 00:00Z on 2013-06-01Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2269 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, Lincoln, IL at 00:00Z on 2013-06-01The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 228 square meters per square second.19395878Sfc1 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
2269 J/kg
Mixed-layer CIN
-6 J/kg
Mixed-layer LCL
706 m above ground
0-6 km bulk shear
52 kt
0-1 km storm-relative helicity
228 m²/s²
0-3 km storm-relative helicity
244 m²/s²
Significant tornado parameter
3.6
Supercell composite
15.2

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
May 31, 7:05 PM CDTMesoscale DiscussionSPCBond, Calhoun, Christian, Greene, Jersey, Macon and 5 more85 min
May 31, 7:23 PM CDTTornado WatchSPCChampaign, Christian, Clark, Clay, Coles, Crawford and 12 more6 hr
May 31, 8:46 PM CDTMesoscale DiscussionSPCBond, Clay, Clinton, Coles, Cumberland, Effingham and 16 more59 min
May 31, 9:37 PM CDTTornado WatchSPCAlexander, Clinton, Edwards, Franklin, Gallatin, Hamilton and 19 more6 hr
May 31, 9:47 PM CDTMesoscale DiscussionSPCIroquois58 min
Jun 1, 1:13 AM CDTMesoscale DiscussionSPCCrawford, Lawrence, Wabash2 hr
Jun 1, 1:51 AM CDTMesoscale DiscussionSPCAlexander, Edwards, Franklin, Gallatin, Hamilton, Hardin and 14 more114 min
Jun 1, 3:46 AM CDTMesoscale DiscussionSPCMassac29 min
Jun 1, 1:24 PM CDTMesoscale DiscussionSPCDearborn, Ohio, Switzerland96 min
Jun 1, 5:05 PM CDTMesoscale DiscussionSPCBath, Bell, Breathitt, Clark, Clay, Clinton and 20 more85 min

Nearby

Tornado Watches in Indiana, 2013Tornado Watches in Illinois, 2013Every tornado watch in 2013

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.