Alert archive / Indiana / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 121, NWS Indianapolis, IN

July 16, 2023Hamilton County, Hancock County, Marion County, Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 16, 2023, 7:29 PM EDT for Hamilton County, Hancock County, Marion County, Indiana. It was in force for 31 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 16, 2023, 7:29 PM EDT (23:29 UTC)
Expired: Jul 16, 2023, 8:00 PM EDT
In force: 31 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Hamilton County, IN, Hancock County, IN, Marion County, IN

The radar

The Indianapolis radar (KIND), 32 km from the middle of the area, began a volume at 23:31 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

Lincoln, IL (KILX), launched 12:00Z, 11.5 hours before the alert went out and 224 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: 922 J/kg
Mixed-layer CIN: -75 J/kg
Mixed-layer LCL: 1096 m above ground
0-6 km bulk shear: 38 kt
0-1 km storm-relative helicity: 74 m²/s²
0-3 km storm-relative helicity: 128 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 1.4

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 Indianapolis, IN wrote its last area forecast discussion before this severe thunderstorm warning went out at Jul 16, 6:12 PM EDT, 1 hour 17 minutes earlier.

Area forecast discussion, Jul 16, 6:12 PM EDT, 1 hour 17 minutes before

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Hazardous weather outlook, Jul 16, 4:04 PM EDT, 3 hours 25 minutes before

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In the hours before

Special weather statement, Jul 16, 5:51 PM EDT, 1 hour 38 minutes before

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Special weather statement, Jul 16, 5:58 PM EDT, 1 hour 31 minutes before

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Special weather statement, Jul 16, 6:48 PM EDT, 41 minutes before

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The office that day

Everything else NWS Indianapolis, IN issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Jul 16, 5:51 PM EDT	Special Weather Statement	IND	Boone	39 min
Jul 16, 5:58 PM EDT	Special Weather Statement	IND	Fountain	32 min
Jul 16, 6:10 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hamilton, Marion	35 min
Jul 16, 6:18 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Montgomery, Parke	27 min
Jul 16, 6:26 PM EDT	Severe Thunderstorm Warning	IND	Boone, Hendricks, Marion	34 min
Jul 16, 6:42 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Marion	33 min
Jul 16, 6:48 PM EDT	Special Weather Statement	IND	Montgomery	27 min
Jul 16, 6:56 PM EDT	Severe Thunderstorm Warning	IND	Boone, Marion	34 min
Jul 16, 7:12 PM EDT	Severe Thunderstorm Warning	IND	Hancock, Rush, Shelby	33 min
Jul 16, 7:41 PM EDT	Severe Thunderstorm Warning	IND	Hendricks, Marion	34 min
Jul 16, 7:43 PM EDT	Severe Thunderstorm Warning	IND	Rush	17 min

Nearby

Severe Thunderstorm Warnings in Indiana, 2023 Every severe thunderstorm warning in 2023

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.