National Weather Service Issues Flood Advisory for Hamilton and Marion Counties
A Flood Advisory is active in central Indiana through 7:00 AM EDT on August 20, 2026.
3 reports on this incident · first at Aug 20, 2026, 11:17 a.m. ET
Earlier reports
Aug 20, 2026, 1:55 p.m. ET
National Weather Service Issues Flood Advisory for Hamilton and Marion Counties
On August 20, 2026, the National Weather Service Indianapolis IN issued a flood advisory for southern Hamilton County and Marion County in central Indiana. According to official weather service records, the advisory was issued at 12:32 AM EDT and is in effect until 7:00 AM EDT Thursday.
Flooding caused by excessive rainfall is expected in the affected areas. Official records state that minor flooding in low-lying and poor drainage areas, along with ponding of water in urban or other areas, is occurring or is imminent.
The weather service advised motorists to turn around and not drown when encountering flooded roads, noting that most flood deaths occur in vehicles. The agency also cautioned to be especially careful at night when recognizing flood dangers is harder.
Aug 20, 2026, 11:17 a.m. ETFirst report
Flood Advisory In Effect for Hamilton IN and Marion IN Until 7 AM EDT Thursday
A Flood Advisory is in effect until 700 AM EDT Thursday for Hamilton IN and Marion IN, according to official weather records from the National Weather Service Indianapolis IN.
Flooding caused by excessive rainfall is expected across southern Hamilton County and Marion County in central Indiana. Official records state that minor flooding in low-lying and poor drainage areas is occurring or imminent, alongside ponding of water in urban or other locations.
The advisory took effect at 12:32 AM EDT on August 20, 2026, and remains active until 7:00 AM EDT. The National Weather Service Indianapolis IN advises drivers to turn around rather than drive into flooded roadways, noting that most flood-related fatalities happen in vehicles and that flooding dangers are harder to spot at night.
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Revision history
- Version 120 Aug 2026, 15:17current
First published.
- Version 120 Aug 2026, 18:54current
First published.
- Version 120 Aug 2026, 17:55current
First published.
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