Flood Advisory — Johnson County, Indiana
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Current Status
🌊 Active: Flood Advisory
Flood Advisory issued August 12 at 12:31AM EDT until August 12 at 3:30AM EDT by NWS Indianapolis IN
* WHAT...Flooding caused by excessive rainfall is expected. * WHERE...Southwestern Hancock County in central Indiana... Northeastern Johnson County in central Indiana... Central Marion County in central Indiana... Shelby County in central Indiana... * WHEN...Until 330 AM EDT. * IMPACTS...Minor flooding in low-lying and poor drainage areas. * ADDITIONAL DETAILS... - At 1231 AM EDT, Doppler radar indicated heavy rain due to thunderstorms. Minor flooding is ongoing or expected to begin shortly in the advisory area. Between 0.75 and 2 inches of rain have fallen. - Additional rainfall amounts up to 1 inch are expected over the area. This additional rain will result in minor flooding. - Some locations that will experience flooding include... Indianapolis, Shelbyville, Greenwood, Lawrence, Greenfield, Beech Grove, Southport, Cumberland, New Palestine, Meridian Hills, Warren Park, Morristown, Homecroft, Rocky Ripple, Fairland, Wynnedale, Spring Lake, Spring Hill, Crows Nest and North Crows
Effective August 12, 2026 at 12:31 AM ET · Expires August 12, 2026 at 3:30 AM ET
Event Details
Event Type
Flood Advisory
Severity
minor
Issued By
NWS Indianapolis IN
Expires
August 12, 2026 at 3:30 AM ET
Last Checked
2 minutes ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles. Be especially cautious at night when it is harder to recognize the dangers of flooding.
Also In Effect For
This same Flood Advisory also covers:
Other Active Alerts in Indiana
Flood Advisory
Flood Advisory
Flood Warning
Flood Warning
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Flood Warning
Get Flood Advisory Alerts for Johnson County
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Frequently Asked Questions
What does a Flood Advisory mean for Johnson County, Indiana?
Minor flooding is expected — not severe enough for a warning, but potentially inconvenient or hazardous for travel.
Is this Flood Advisory currently active?
Yes — this alert is active as of our last check (2 minutes ago). It's set to expire August 12, 2026 at 3:30 AM ET.
How do I get notified about Flood Advisory alerts for Johnson County?
Download StormCast free on Google Play and set Johnson County, Indiana as one of your monitored locations. StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
What other areas does this alert cover?
This same Flood Advisory is also in effect for Hancock County, Shelby County, Marion County.