Alert archive / Indiana / Mesoscale Discussions in 2019

Mesoscale Discussion 34

January 19, 201913 counties in Illinois; 37 counties in Indiana; 16 counties in Kentucky

The Storm Prediction Center issued this mesoscale discussion at Jan 19, 2019, 6:21 PM CST for 13 counties in Illinois; 37 counties in Indiana; 16 counties in Kentucky. It was in force for 3 hr.

The area

The outline as issued.

The facts

Issued: Jan 19, 2019, 6:21 PM CST (00:21 UTC)
Expired: Jan 19, 2019, 9:15 PM CST
In force: 3 hr
Issued by: the Storm Prediction Center

All 66 counties

Edwards County, IL, Gallatin County, IL, Hamilton County, IL, Hardin County, IL, Johnson County, IL, Lawrence County, IL, Massac County, IL, Pope County, IL, Pulaski County, IL, Saline County, IL, Wabash County, IL, White County, IL, Williamson County, IL, Bartholomew County, IN, Boone County, IN, Brown County, IN, Clay County, IN, Daviess County, IN, Decatur County, IN, Delaware County, IN, Dubois County, IN, Fayette County, IN, Gibson County, IN, Greene County, IN, Hamilton County, IN, Hancock County, IN, Hendricks County, IN, Henry County, IN, Jackson County, IN, Johnson County, IN, Knox County, IN, Lawrence County, IN, Madison County, IN, Marion 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, Putnam County, IN, Rush County, IN, Shelby County, IN, Spencer County, IN, Sullivan County, IN, Tipton County, IN, Vanderburgh County, IN, Warrick County, IN, Ballard County, KY, Caldwell County, KY, Carlisle County, KY, Crittenden County, KY, Daviess County, KY, Graves County, KY, Hancock County, KY, Henderson County, KY, Hopkins County, KY, Livingston County, KY, Lyon County, KY, Marshall County, KY, McCracken County, KY, McLean County, KY, Union County, KY, Webster County, KY

The radar

The Evansville,IN radar (KVWX), 60 km from the middle of the area, began a volume at 00:23 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.

The nearest sounding before it

Nashville Metro, TN (KBNA), launched 00:00Z, 0.4 hours before the alert went out and 265 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: 0 J/kg
Mixed-layer CIN: No buoyant parcel
Mixed-layer LCL: 658 m above ground
0-6 km bulk shear: 95 kt
0-1 km storm-relative helicity: -55 m²/s²
0-3 km storm-relative helicity: -22 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted.

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SPC that day

Everything else SPC issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jan 19, 11:13 PM CST	Mesoscale Discussion	SPC	Cook	4 hr
Jan 19, 9:35 PM CST	Mesoscale Discussion	SPC	Clark, Dearborn, Decatur, Fayette, Floyd, Franklin and 12 more	3 hr

Nearby

Mesoscale Discussions in Indiana, 2019 Mesoscale Discussions in Kentucky, 2019 Mesoscale Discussions in Illinois, 2019 Every mesoscale discussion in 2019

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.