Alert archive / Indiana / Severe Thunderstorm Watches in 2015

Severe Thunderstorm Watch 271

June 7, 201545 counties in Indiana

The Storm Prediction Center issued this severe thunderstorm watch at Jun 7, 2015, 7:06 PM EDT for 45 counties in Indiana. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued
Jun 7, 2015, 7:06 PM EDT (23:06 UTC)
Expired
Jun 8, 2015, 1:00 AM EDT
In force
6 hr
Issued by
the Storm Prediction Center
Largest hail expected
1.5 in
Strongest gust expected
70 kt
All 45 counties

Adams County, IN, Allen County, IN, Blackford County, IN, Boone County, IN, Carroll County, IN, Cass County, IN, Clay County, IN, Clinton County, IN, Delaware County, IN, Fountain County, IN, Fulton County, IN, Grant County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Howard County, IN, Huntington County, IN, Jay County, IN, Johnson County, IN, Kosciusko County, IN, Madison County, IN, Marion County, IN, Marshall County, IN, Miami 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, Starke 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, Whitley County, IN

The radar

The Indianapolis radar (KIND), 56 km from the middle of the area, began a volume at 23:08 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
20%
One or more EF2 to EF5 tornadoes
2%
Ten or more severe wind reports
70%
One or more gusts of 65 knots or more
30%
Ten or more severe hail reports
20%
One or more hailstones of 2 inches or more
5%
Six or more combined severe hail and wind reports
90%

Warnings issued inside it

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

IssuedProductOfficeCountiesLasted
Jun 7, 7:43 PM EDTSevere Thunderstorm WarningINDCarroll, Tippecanoe47 min
Jun 7, 7:56 PM EDTSevere Thunderstorm WarningINDCarroll, Clinton, Fountain, Tippecanoe, Warren49 min
Jun 7, 8:24 PM EDTSevere Thunderstorm WarningINDHoward21 min
Jun 7, 8:40 PM EDTSevere Thunderstorm WarningINDBoone, Clinton, Hamilton, Howard, Madison, Montgomery and 2 more50 min
Jun 7, 8:56 PM EDTSevere Thunderstorm WarningINDFountain, Vermillion, Warren49 min
Jun 7, 9:20 PM EDTTornado WarningINDFountain, Montgomery25 min
Jun 7, 9:29 PM EDTSevere Thunderstorm WarningINDMontgomery31 min
Jun 7, 9:55 PM EDTSevere Thunderstorm WarningINDBoone, Clinton, Montgomery50 min
Jun 7, 11:05 PM EDTSevere Thunderstorm WarningINDFountain, Parke, Vermillion, Warren25 min
Jun 7, 11:11 PM EDTTornado WarningINDFountain, Warren34 min
Jun 7, 11:16 PM EDTTornado WarningINDParke, Vermillion29 min
Jun 7, 11:25 PM EDTSevere Thunderstorm WarningINDFountain, Montgomery, Parke, Putnam, Tippecanoe, Vermillion and 1 more50 min
Jun 7, 11:44 PM EDTTornado WarningINDMontgomery, Parke16 min
Jun 7, 11:52 PM EDTSevere Thunderstorm WarningINDClay, Putnam, Vigo23 min
Jun 8, 12:09 AM EDTSevere Thunderstorm WarningINDClay, Greene, Owen, Parke, Putnam, Sullivan and 1 more36 min
Jun 8, 12:36 AM EDTSevere Thunderstorm WarningINDMonroe, Morgan, Owen24 min
Jun 8, 12:54 AM EDTSevere Thunderstorm WarningINDBrown, Greene, Monroe, Morgan, Owen36 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, 11.1 hours before the alert went out and 193 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 12:00Z on 2015-06-07Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 124 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 12:00Z on 2015-06-07The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 256 square meters per square second.1939Sfc1 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
124 J/kg
Mixed-layer CIN
-173 J/kg
Mixed-layer LCL
1036 m above ground
0-6 km bulk shear
29 kt
0-1 km storm-relative helicity
256 m²/s²
0-3 km storm-relative helicity
263 m²/s²
Significant tornado parameter
0.0
Supercell composite
1.3

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Jun 7, 3:36 PM EDTSevere Thunderstorm WatchSPCBenton, Jasper, Lake, Newton, Porter5 hr
Jun 7, 4:50 PM EDTMesoscale DiscussionSPCBartholomew, Benton, Boone, Brown, Carroll, Cass and 36 more55 min
Jun 7, 4:56 PM EDTSevere Thunderstorm WatchSPCCass, Fulton, Kosciusko, LaPorte, Marshall, Miami and 4 more4 hr
Jun 7, 6:34 PM EDTMesoscale DiscussionSPCAllen, Benton, Carroll, Cass, Elkhart, Fulton and 17 more86 min

Nearby

Severe Thunderstorm Watches in Indiana, 2015Every severe thunderstorm watch in 2015

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.