Alert archive / Indiana / Severe Thunderstorm Warnings in 2019

Severe Thunderstorm Warning 91, NWS Chicago, IL

July 6, 2019Jasper County, Lake County, Newton County, Indiana

NWS Chicago, IL issued this severe thunderstorm warning at Jul 6, 2019, 2:04 PM CDT for Jasper County, Lake County, Newton County, Indiana. It was in force for 41 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Jul 6, 2019, 2:04 PM CDT (19:04 UTC)
Expired: Jul 6, 2019, 2:45 PM CDT
In force: 41 min
Issued by: NWS Chicago, IL
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Jasper County, IN, Lake County, IN, Newton County, IN

The radar

The Chicago radar (KLOT), 83 km from the middle of the area, began a volume at 19:07 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

Cncnati-Daytn, OH (KILN), launched 12:00Z, 7.1 hours before the alert went out and 353 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: 205 J/kg
Mixed-layer CIN: -82 J/kg
Mixed-layer LCL: 1251 m above ground
0-6 km bulk shear: 7 kt
0-1 km storm-relative helicity: -42 m²/s²
0-3 km storm-relative helicity: -49 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Chicago, IL wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 6, 1:59 PM CDT, 5 minutes earlier.

Area forecast discussion, Jul 6, 1:59 PM CDT, 5 minutes before

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Hazardous weather outlook, Jul 6, 12:30 PM CDT, 1 hour 34 minutes before

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In the hours before

Special weather statement, Jul 6, 12:57 PM CDT, 1 hour 7 minutes before

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Special weather statement, Jul 6, 1:27 PM CDT, 37 minutes before

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Special weather statement, Jul 6, 1:45 PM CDT, 19 minutes before

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Special weather statement, Jul 6, 1:54 PM CDT, 10 minutes before

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The office that day

Everything else NWS Chicago, IL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 5, 7:54 PM CDT	Special Weather Statement	LOT	Winnebago	51 min
Jul 6, 3:16 AM CDT	Beach Hazards Statement	LOT	Lake	48 hr
Jul 6, 3:16 AM CDT	Lakeshore Flood Advisory	LOT	Lake	38 hr
Jul 6, 3:32 AM CDT	Small Craft Advisory	LOT		47 hr
Jul 6, 12:57 PM CDT	Special Weather Statement	LOT	Will	33 min
Jul 6, 1:27 PM CDT	Special Weather Statement	LOT	Will	33 min
Jul 6, 1:45 PM CDT	Special Weather Statement	LOT	Lee	45 min
Jul 6, 2:49 PM CDT	Special Weather Statement	LOT	LaSalle	41 min
Jul 6, 2:59 PM CDT	Severe Thunderstorm Warning	LOT	LaSalle	61 min
Jul 6, 3:47 PM CDT	Special Weather Statement	LOT	LaSalle	28 min
Jul 6, 4:42 PM CDT	Special Weather Statement	LOT	Livingston	33 min
Jul 6, 4:52 PM CDT	Severe Thunderstorm Warning	LOT	Livingston	38 min
Jul 6, 5:16 PM CDT	Severe Thunderstorm Warning	LOT	Ford, Iroquois, Livingston	30 min
Jul 6, 1:54 PM CDT	Special Weather Statement	LOT	Lake	36 min
Jul 6, 3:03 PM CDT	Special Weather Statement	LOT	Benton, Jasper, Newton	42 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2019 Every severe thunderstorm warning 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.