Alert archive / Indiana / Severe Thunderstorm Watches in 2016

Severe Thunderstorm Watch 110

April 26, 201625 counties in Illinois; 35 counties in Indiana; 33 counties in Kentucky

The Storm Prediction Center issued this severe thunderstorm watch at Apr 26, 2016, 3:03 PM CDT for 25 counties in Illinois; 35 counties in Indiana; 33 counties in Kentucky. It was in force for 6 hr.

The area

The outline as issued.

The facts

Issued: Apr 26, 2016, 3:03 PM CDT (20:03 UTC)
Expired: Apr 26, 2016, 9:20 PM CDT
In force: 6 hr
Issued by: the Storm Prediction Center
Largest hail expected: 1 in
Strongest gust expected: 60 kt

All 93 counties

Alexander County, IL, Clark County, IL, Coles County, IL, Crawford County, IL, Cumberland County, IL, Edgar County, IL, Edwards County, IL, Franklin County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Jasper County, IL, Jefferson County, IL, Johnson County, IL, Lawrence County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Richland County, IL, Saline County, IL, Union County, IL, Wabash County, IL, Wayne County, IL, White County, IL, Williamson County, IL, Bartholomew County, IN, Brown County, IN, Clark County, IN, Clay County, IN, Crawford County, IN, Daviess County, IN, Decatur County, IN, Dubois County, IN, Floyd County, IN, Gibson County, IN, Greene County, IN, Harrison County, IN, Jackson County, IN, Jefferson County, IN, Jennings County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Martin County, IN, Monroe County, IN, Morgan County, IN, Orange County, IN, Owen County, IN, Perry County, IN, Pike County, IN, Posey County, IN, Rush County, IN, Scott County, IN, Shelby County, IN, Spencer County, IN, Sullivan County, IN, Vanderburgh County, IN, Vigo County, IN, Warrick County, IN, Washington County, IN, Ballard County, KY, Breckinridge County, KY, Bullitt County, KY, Butler County, KY, Caldwell County, KY, Calloway County, KY, Carlisle County, KY, Christian County, KY, Crittenden County, KY, Daviess County, KY, Fulton County, KY, Graves County, KY, Grayson County, KY, Hancock County, KY, Hardin County, KY, Henderson County, KY, Hickman County, KY, Hopkins County, KY, Jefferson County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Meade County, KY, Muhlenberg County, KY, Ohio County, KY, Oldham County, KY, Todd County, KY, Trigg County, KY, Trimble County, KY, Union County, KY, Webster County, KY

The radar

The Evansville,IN radar (KVWX), 38 km from the middle of the area, began a volume at 20:05 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: 5%
One or more EF2 to EF5 tornadoes: 2%
Ten or more severe wind reports: 50%
One or more gusts of 65 knots or more: 10%
Ten or more severe hail reports: 30%
One or more hailstones of 2 inches or more: 5%
Six or more combined severe hail and wind reports: 80%

Warnings issued inside it

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

Issued	Product	Office	Counties	Lasted
Apr 26, 3:05 PM CDT	Severe Thunderstorm Warning	IND	Hendricks, Morgan	25 min
Apr 26, 3:27 PM CDT	Severe Thunderstorm Warning	IND	Hendricks, Johnson, Marion, Morgan	33 min
Apr 26, 3:32 PM CDT	Severe Thunderstorm Warning	ILX	Coles, Edgar	24 min
Apr 26, 3:34 PM CDT	Severe Thunderstorm Warning	IND	Hancock, Henry, Rush	41 min
Apr 26, 3:36 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	39 min
Apr 26, 3:37 PM CDT	Severe Thunderstorm Warning	PAH	Pike	23 min
Apr 26, 3:39 PM CDT	Severe Thunderstorm Warning	IND	Morgan, Putnam	36 min
Apr 26, 3:40 PM CDT	Severe Thunderstorm Warning	PAH	Jefferson, Perry	50 min
Apr 26, 3:46 PM CDT	Severe Thunderstorm Warning	IND	Clay, Parke, Vermillion, Vigo	29 min
Apr 26, 3:51 PM CDT	Severe Thunderstorm Warning	IND	Johnson, Marion, Shelby	24 min
Apr 26, 3:52 PM CDT	Severe Thunderstorm Warning	PAH	Gibson, Pike	9 min
Apr 26, 3:58 PM CDT	Severe Thunderstorm Warning	IND	Hancock, Rush, Shelby	47 min
Apr 26, 4:02 PM CDT	Severe Thunderstorm Warning	PAH	Franklin, Jackson, Perry	43 min
Apr 26, 4:08 PM CDT	Flash Flood Warning	ILX	Coles, Moultrie	3 hr
Apr 26, 4:13 PM CDT	Severe Thunderstorm Warning	IND	Hancock, Henry, Rush	26 min
Apr 26, 4:14 PM CDT	Severe Thunderstorm Warning	ILX	Edgar	29 min
Apr 26, 4:14 PM CDT	Severe Thunderstorm Warning	PAH	Hamilton, Wayne	46 min
Apr 26, 4:15 PM CDT	Severe Thunderstorm Warning	IND	Clay, Parke, Vermillion, Vigo	45 min
Apr 26, 4:20 PM CDT	Flash Flood Warning	ILX	Edgar	3 hr
Apr 26, 4:48 PM CDT	Severe Thunderstorm Warning	PAH	Alexander, Union	27 min
Apr 26, 4:51 PM CDT	Severe Thunderstorm Warning	IND	Bartholomew, Decatur, Jennings, Rush, Shelby	24 min
Apr 26, 4:52 PM CDT	Severe Thunderstorm Warning	PAH	Gibson, Posey	23 min
Apr 26, 4:54 PM CDT	Severe Thunderstorm Warning	PAH	Gallatin, Hamilton, Saline	14 min
Apr 26, 4:56 PM CDT	Severe Thunderstorm Warning	PAH	Vanderburgh	34 min
Apr 26, 5:04 PM CDT	Severe Thunderstorm Warning	LMK	Jefferson, Scott	41 min
Apr 26, 5:11 PM CDT	Severe Thunderstorm Warning	PAH	Pope	34 min
Apr 26, 5:13 PM CDT	Severe Thunderstorm Warning	IND	Decatur	32 min
Apr 26, 5:14 PM CDT	Severe Thunderstorm Warning	PAH	Massac	16 min
Apr 26, 5:15 PM CDT	Severe Thunderstorm Warning	PAH	Pulaski	14 min
Apr 26, 5:27 PM CDT	Severe Thunderstorm Warning	LMK	Jefferson	19 min
Apr 26, 5:28 PM CDT	Severe Thunderstorm Warning	IND	Daviess, Greene, Knox, Martin, Sullivan	32 min
Apr 26, 5:48 PM CDT	Severe Thunderstorm Warning	PAH	Vanderburgh, Warrick	42 min
Apr 26, 5:56 PM CDT	Tornado Warning Tornado observed	PAH	Spencer, Vanderburgh, Warrick	21 min
Apr 26, 6:07 PM CDT	Severe Thunderstorm Warning	LMK	Dubois	53 min
Apr 26, 6:15 PM CDT	Severe Thunderstorm Warning	PAH	Spencer, Warrick	45 min
Apr 26, 6:25 PM CDT	Tornado Warning Tornado observed	IND	Greene, Monroe, Owen	35 min
Apr 26, 6:25 PM CDT	Severe Thunderstorm Warning	LMK	Crawford, Dubois, Perry	65 min
Apr 26, 6:30 PM CDT	Severe Thunderstorm Warning	PAH	Spencer	30 min
Apr 26, 6:35 PM CDT	Severe Thunderstorm Warning	PAH	Daviess, McLean	33 min
Apr 26, 6:39 PM CDT	Severe Thunderstorm Warning	PAH	Hopkins	21 min
Apr 26, 6:48 PM CDT	Severe Thunderstorm Warning	PAH	Daviess	27 min
Apr 26, 7:05 PM CDT	Severe Thunderstorm Warning	LMK	Crawford, Harrison, Perry	40 min
Apr 26, 7:47 PM CDT	Severe Thunderstorm Warning	LMK	Clark, Floyd, Harrison	28 min
Apr 26, 7:49 PM CDT	Severe Thunderstorm Warning	LMK	Jefferson, Scott	26 min
Apr 26, 8:28 PM CDT	Severe Thunderstorm Warning	LMK	Franklin, Henry, Oldham, Shelby, Spencer	32 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, 8.1 hours before the alert went out and 190 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: 449 J/kg
Mixed-layer CIN: -60 J/kg
Mixed-layer LCL: 792 m above ground
0-6 km bulk shear: 0 kt
0-1 km storm-relative helicity: 0 m²/s²
0-3 km storm-relative helicity: 0 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Apr 26, 10:03 AM CDT	Mesoscale Discussion	SPC	Calhoun, Greene, Jersey, Monroe, Randolph, Saint Clair	117 min
Apr 26, 11:52 AM CDT	Severe Thunderstorm Watch	SPC	Bond, Calhoun, Christian, Clay, Clinton, Effingham and 18 more	7 hr
Apr 26, 12:58 PM CDT	Mesoscale Discussion	SPC	Crawford, Lawrence	3 hr
Apr 26, 2:42 PM CDT	Mesoscale Discussion	SPC	Alexander, Bond, Clay, Clinton, Edwards, Fayette and 23 more	2 hr
Apr 26, 5:05 PM CDT	Mesoscale Discussion	SPC	Dearborn, Fayette, Franklin, Ohio, Ripley, Switzerland and 1 more	115 min
Apr 26, 5:45 PM CDT	Severe Thunderstorm Watch	SPC	Dearborn, Fayette, Franklin, Ohio, Ripley, Switzerland and 2 more	6 hr

Nearby

Severe Thunderstorm Watches in Indiana, 2016 Severe Thunderstorm Watches in Kentucky, 2016 Severe Thunderstorm Watches in Illinois, 2016 Every severe thunderstorm watch in 2016

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.