Alert archive / Indiana / Severe Thunderstorm Warnings in 2023

Severe Thunderstorm Warning 43, NWS Indianapolis, IN

May 7, 20234 counties in Indiana

NWS Indianapolis, IN issued this severe thunderstorm warning at May 7, 2023, 6:39 PM EDT for 4 counties in Indiana. It was in force for 36 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: May 7, 2023, 6:39 PM EDT (22:39 UTC)
Expired: May 7, 2023, 7:15 PM EDT
In force: 36 min
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Hail: 1.0 in
Wind: 50.0 mph

Counties Clay County, IN, Greene County, IN, Owen County, IN, Sullivan County, IN

The radar

The Indianapolis radar (KIND), 89 km from the middle of the area, began a volume at 22:42 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, 10.7 hours before the alert went out and 167 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: 668 J/kg
Mixed-layer CIN: -187 J/kg
Mixed-layer LCL: 887 m above ground
0-6 km bulk shear: 52 kt
0-1 km storm-relative helicity: 214 m²/s²
0-3 km storm-relative helicity: 250 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.8

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 May 7, 2:59 PM EDT, 3 hours 40 minutes earlier.

Area forecast discussion, May 7, 2:59 PM EDT, 3 hours 40 minutes before

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Hazardous weather outlook, May 7, 3:42 PM EDT, 2 hours 57 minutes before

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In the hours before

Special weather statement, May 7, 5:14 PM EDT, 1 hour 25 minutes before

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Special weather statement, May 7, 6:15 PM EDT, 24 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
May 6, 11:21 PM EDT	Severe Thunderstorm Warning	IND	Fountain, Vermillion, Warren	39 min
May 6, 11:45 PM EDT	Special Weather Statement	IND	Montgomery	60 min
May 6, 11:58 PM EDT	Severe Thunderstorm Warning Considerable damage threat	IND	Fountain, Montgomery, Tippecanoe, Warren	7 min
May 7, 12:11 AM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Montgomery	24 min
May 7, 12:13 AM EDT	Special Weather Statement	IND	Putnam	32 min
May 7, 12:45 AM EDT	Special Weather Statement	IND	Boone	45 min
May 7, 1:21 AM EDT	Severe Thunderstorm Warning	IND	Boone	39 min
May 7, 1:47 AM EDT	Special Weather Statement	IND	Marion	43 min
May 7, 1:51 AM EDT	Severe Thunderstorm Warning	IND	Boone, Hamilton, Hendricks, Marion	22 min
May 7, 2:03 AM EDT	Special Weather Statement	IND	Howard, Tipton	57 min
May 7, 2:21 AM EDT	Special Weather Statement	IND	Hancock	54 min
May 7, 2:42 AM EDT	Severe Thunderstorm Warning	IND	Hamilton, Madison, Tipton	48 min
May 7, 3:06 AM EDT	Special Weather Statement	IND	Decatur, Rush	54 min
May 7, 3:11 AM EDT	Special Weather Statement	IND	Fountain, Montgomery, Parke, Putnam, Tippecanoe, Vermillion and 2 more	64 min
May 7, 3:26 AM EDT	Special Weather Statement	IND	Henry	64 min
May 7, 3:29 AM EDT	Special Weather Statement	IND	Delaware, Madison, Randolph	76 min
May 7, 3:55 AM EDT	Severe Thunderstorm Warning	IND	Boone, Clinton, Montgomery, Tippecanoe	23 min
May 7, 4:21 AM EDT	Special Weather Statement	IND	Boone, Hamilton, Hancock, Hendricks, Madison, Marion	54 min
May 7, 4:23 AM EDT	Special Weather Statement	IND	Morgan, Putnam	67 min
May 7, 4:42 AM EDT	Special Weather Statement	IND	Randolph	63 min
May 7, 5:18 AM EDT	Special Weather Statement	IND	Bartholomew, Brown, Decatur, Hancock, Jackson, Jennings and 2 more	72 min
May 7, 6:38 AM EDT	Special Weather Statement	IND	Clay, Owen, Vigo	52 min
May 7, 7:20 AM EDT	Special Weather Statement	IND	Daviess, Greene, Lawrence, Martin, Monroe, Sullivan	40 min
May 7, 7:49 AM EDT	Areal Flood Advisory	IND	Greene, Lawrence, Monroe, Owen	3 hr
May 7, 8:03 AM EDT	Special Weather Statement	IND	Jackson, Lawrence	42 min
May 7, 5:14 PM EDT	Special Weather Statement	IND	Knox	31 min
May 7, 6:15 PM EDT	Special Weather Statement	IND	Martin	45 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.