Flash Flood Warning — Hamilton County, Indiana
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Current Status
🌊 Active: Flash Flood Warning
Flash Flood Warning issued August 12 at 4:18PM EDT until August 12 at 8:15PM EDT by NWS Indianapolis IN
FFWIND The National Weather Service in Indianapolis has extended the * Flash Flood Warning for... Boone County in central Indiana... Hamilton County in central Indiana... * Until 815 PM EDT. * At 418 PM EDT, Doppler radar indicated thunderstorms producing heavy rain across the warned area. Between 1 and 3 inches of rain have fallen. Additional rainfall amounts up to 0.25 inches are possible in the warned area. Flash flooding is ongoing or expected to begin shortly. HAZARD...Flash flooding caused by thunderstorms. SOURCE...Radar. IMPACT...Flash flooding of small creeks and streams, urban areas, highways, streets and underpasses as well as other poor drainage and low-lying areas. * Some locations that will experience flash flooding include... Indianapolis, Carmel, Fishers, Noblesville, Lebanon, Zionsville, Westfield, Cicero, Fortville, Whitestown, Sheridan, Arcadia, Thorntown, Jamestown, Atlanta, Advance, Ulen and Morse Reservoir.
Effective August 12, 2026 at 4:18 PM ET · Expires August 12, 2026 at 8:15 PM ET
Event Details
Event Type
Flash Flood Warning
Severity
severe
Issued By
NWS Indianapolis IN
Expires
August 12, 2026 at 8:15 PM ET
Last Checked
1 minute ago
What To Do
📋 Official NWS Guidance
Turn around, don't drown when encountering flooded roads. Most flood deaths occur in vehicles.
Also In Effect For
This same Flash Flood Warning also covers:
Other Active Alerts in Indiana
Flash Flood Warning
Flash Flood Warning
Flash Flood Warning
Flash Flood Warning
Flash Flood Warning
Severe Thunderstorm Watch
Get Flash Flood Warning Alerts for Hamilton County
StormCast checks the NWS feed continuously and pushes alerts like this directly to your phone — even with the screen off.
Frequently Asked Questions
What does a Flash Flood Warning mean for Hamilton County, Indiana?
Flooding is imminent or already occurring. Move to higher ground immediately — never drive through flooded roads.
Is this Flash Flood Warning currently active?
Yes — this alert is active as of our last check (1 minute ago). It's set to expire August 12, 2026 at 8:15 PM ET.
How do I get notified about Flash Flood Warning alerts for Hamilton County?
Download StormCast free on Google Play and set Hamilton 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 Flash Flood Warning is also in effect for Boone County.