Alert archive / Indiana / Areal Flood Warnings in 2024

Areal Flood Warning 13, NWS Indianapolis, IN

August 1, 2024Delaware County, Henry County, Randolph County, Indiana

NWS Indianapolis, IN issued this areal flood warning at Aug 1, 2024, 8:28 PM EDT for Delaware County, Henry County, Randolph County, Indiana. It was in force for 12 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued: Aug 1, 2024, 8:28 PM EDT (00:28 UTC)
Expired: Aug 2, 2024, 8:30 AM EDT
In force: 12 hr
Issued by: NWS Indianapolis, IN
Area: Storm-based polygon
Flood severity: None

Counties Delaware County, IN, Henry County, IN, Randolph County, IN

The radar

The Indianapolis radar (KIND), 97 km from the middle of the area, began a volume at 00:29 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 00:00Z, 0.5 hours before the alert went out and 146 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: 2628 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 935 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 61 m²/s²
0-3 km storm-relative helicity: 11 m²/s²
Significant tornado parameter: 0.5
Supercell composite: 3.9

Open this sounding in Storm Lab

What forecasters said that day

The local office's own words before this areal flood 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 areal flood warning went out at Aug 1, 6:28 PM EDT, 2 hours earlier.

Area forecast discussion, Aug 1, 6:28 PM EDT, 2 hours before

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Hazardous weather outlook, Aug 1, 3:25 PM EDT, 5 hours 3 minutes before

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In the hours before

Local storm report, Aug 1, 7:07 PM EDT, 1 hour 21 minutes before

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Local storm report, Aug 1, 7:15 PM EDT, 1 hour 13 minutes before

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Local storm report, Aug 1, 7:24 PM EDT, 1 hour 4 minutes before

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Local storm report, Aug 1, 7:27 PM EDT, 1 hour 1 minute before

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Local storm report, Aug 1, 7:29 PM EDT, 59 minutes before

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Local storm report, Aug 1, 8:01 PM EDT, 27 minutes before

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        If you are an administrator, restore upstream service and remove the redirect/fallback rule when normal operations resume.
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The office that day

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

Issued	Product	Office	Counties	Lasted
Aug 1, 8:12 PM EDT	Areal Flood Warning	IND	Boone, Hamilton, Hancock, Madison, Marion	12 hr
Aug 1, 11:04 PM EDT	Dense Fog Advisory	IND	Brown, Clay, Greene, Hendricks, Johnson, Lawrence and 7 more	5 hr
Aug 2, 1:44 AM EDT	Special Weather Statement	IND	Parke	31 min
Aug 2, 3:08 AM EDT	Special Weather Statement	IND	Daviess	22 min
Aug 2, 6:06 PM EDT	Special Weather Statement	IND	Johnson	24 min

Nearby

Areal Flood Warnings in Indiana, 2024 Every areal flood 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.