Alert archive / Indiana / Severe Thunderstorm Warnings in 2024

Severe Thunderstorm Warning 101, NWS Chicago, IL

July 14, 20244 counties in Indiana

NWS Chicago, IL issued this severe thunderstorm warning at Jul 14, 2024, 9:37 AM CDT for 4 counties in Indiana. It was in force for 27 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 14, 2024, 9:37 AM CDT (14:37 UTC)
Expired: Jul 14, 2024, 10:04 AM CDT
In force: 27 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, Porter County, IN

The radar

The Chicago radar (KLOT), 81 km from the middle of the area, began a volume at 14:38 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

Davenport, (KDVN), launched 12:00Z, 2.6 hours before the alert went out and 275 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: 1552 J/kg
Mixed-layer CIN: -158 J/kg
Mixed-layer LCL: 1226 m above ground
0-6 km bulk shear: 32 kt
0-1 km storm-relative helicity: 232 m²/s²
0-3 km storm-relative helicity: 238 m²/s²
Significant tornado parameter: 0.3
Supercell composite: 2.6

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 14, 6:21 AM CDT, 3 hours 16 minutes earlier.

Area forecast discussion, Jul 14, 6:21 AM CDT, 3 hours 16 minutes before

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Hazardous weather outlook, Jul 14, 3:38 AM CDT, 5 hours 59 minutes before

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In the hours before

Special weather statement, Jul 14, 8:49 AM CDT, 48 minutes before

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Local storm report, Jul 14, 9:01 AM CDT, 36 minutes before

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Local storm report, Jul 14, 9:19 AM CDT, 18 minutes before

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Special weather statement, Jul 14, 9:21 AM CDT, 16 minutes before

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Local storm report, Jul 14, 9:24 AM CDT, 13 minutes before

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Local storm report, Jul 14, 9:35 AM CDT, 2 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 13, 9:19 PM CDT	Special Marine Warning	LOT		116 min
Jul 13, 9:35 PM CDT	Special Weather Statement	LOT	McHenry	25 min
Jul 13, 10:00 PM CDT	Special Weather Statement	LOT	Lake	30 min
Jul 13, 10:03 PM CDT	Special Marine Warning	LOT		117 min
Jul 13, 10:13 PM CDT	Special Weather Statement	LOT	Boone, McHenry, Winnebago	47 min
Jul 13, 10:23 PM CDT	Severe Thunderstorm Warning	LOT	Winnebago	37 min
Jul 13, 10:49 PM CDT	Areal Flood Advisory	LOT	Boone, DeKalb, Kane, McHenry, Ogle, Winnebago	3 hr
Jul 13, 10:59 PM CDT	Flash Flood Warning	LOT	Winnebago	5 hr
Jul 13, 11:16 PM CDT	Flash Flood Warning	LOT	Boone, DeKalb, McHenry	5 hr
Jul 13, 11:31 PM CDT	Special Marine Warning	LOT		89 min
Jul 13, 11:41 PM CDT	Areal Flood Advisory	LOT	Cook, DeKalb, DuPage, Kane, Lake, McHenry	3 hr
Jul 14, 12:01 AM CDT	Flash Flood Warning	LOT	Ogle, Winnebago	4 hr
Jul 14, 12:31 AM CDT	Areal Flood Advisory	LOT	Cook	3 hr
Jul 14, 12:40 AM CDT	Special Weather Statement	LOT	DeKalb, Ogle	50 min
Jul 14, 1:02 AM CDT	Special Weather Statement	LOT	DeKalb, Kane	58 min
Jul 14, 2:19 AM CDT	Flood Watch	LOT	Boone, Cook, DeKalb, DuPage, Kane, Lake and 4 more	9 hr
Jul 14, 2:45 AM CDT	Areal Flood Advisory	LOT	Cook, DuPage	75 min
Jul 14, 3:44 AM CDT	Areal Flood Warning	LOT	Winnebago	6 hr
Jul 14, 3:46 AM CDT	Areal Flood Warning	LOT	Boone, DeKalb, McHenry	6 hr
Jul 14, 6:12 AM CDT	Special Weather Statement	LOT	Boone, Ogle, Winnebago	48 min
Jul 14, 7:21 AM CDT	Special Weather Statement	LOT	DeKalb	24 min
Jul 14, 7:36 AM CDT	Special Weather Statement	LOT	LaSalle	24 min
Jul 14, 7:55 AM CDT	Special Weather Statement	LOT	Grundy, Kendall	50 min
Jul 14, 8:42 AM CDT	Severe Thunderstorm Warning	LOT	Will	37 min
Jul 14, 8:49 AM CDT	Special Weather Statement	LOT	Kankakee	41 min
Jul 14, 10:46 AM CDT	Areal Flood Advisory	LOT	Boone, McHenry, Winnebago	6 hr
Jul 14, 3:03 PM CDT	Flood Watch	LOT	Boone, Cook, DeKalb, DuPage, Grundy, Kane and 9 more	11 hr
Jul 14, 9:21 AM CDT	Special Weather Statement	LOT	Newton	24 min
Jul 14, 9:43 AM CDT	Special Weather Statement	LOT	Jasper	47 min
Jul 14, 12:30 PM CDT	River Flood Watch	LOT	Lake, Newton	18 hr
Jul 14, 12:30 PM CDT	River Flood Watch	LOT	Jasper, Porter	18 hr

Nearby

Severe Thunderstorm Warnings in Indiana, 2024 Every severe thunderstorm warning in 2024

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.