| Indiana severe flooding August 2026 began on August 11 when a derecho that developed over eastern Iowa tracked into Indiana and triggered consecutive rounds of thunderstorms and heavy rainfall, depositing 6 to 9 inches of rain across central and southern portions of the state, causing widespread historic flooding, killing seven people across six counties, producing more than 300,000 power outages at peak, and prompting President Trump to approve a federal Emergency Declaration on August 15 covering 53 Indiana counties under FEMA EM-3651. This article covers the storm’s cause and sequence, the full scope of deaths and damage, the disaster declarations at state and federal levels, the relief resources available to affected residents, and why Indiana has experienced two major flooding disasters in the same year. Universalnest.com covers this event within its Natural Disasters and Environmental Crises reporting across Current Affairs. |
Indiana Flooding August 11, 2026: A Derecho, a Stalled Front, and 6 to 9 Inches of Rain
Indiana’s August 2026 flooding began with a confirmed derecho that developed at approximately 12:00 UTC on August 11 over eastern Iowa, tracked northeast into Indiana, and lasted until at least 17:25 UTC, bringing damaging winds, at least two tornadoes, large hail, and flash flooding as it crossed the state, before a stalled frontal boundary locked over the Midwest and drove persistent heavy rainfall across central and southern Indiana for days afterward.
The meteorological chain behind the disaster had three components. A heat dome over the southern United States prevented a frontal boundary from moving. A high-pressure system over the Gulf of Mexico fed moisture into the stalled front. The combination produced exceptional atmospheric instability, generating the August 11 derecho and then repeated squall lines and thunderstorms through August 12 and the following days.
As the derecho system tracked south and east through the late morning and afternoon, widespread damaging winds hit central Indiana. The event also produced widespread tree damage across a large swath of the state. Concern shifted from wind damage to excessive flooding by early August 12, when a squall line brought the heaviest rainfall. The Weather Prediction Center began issuing storm summaries at 03:00 UTC on August 12.
Some areas of Indiana received 6 to 9 inches of rain. Multiple rivers crossed their major flood stage. Numerous road closures followed. Localised evacuations took place in flood-prone river communities. The flooding reached beyond Indiana’s borders into adjacent areas of Ohio and Kentucky.
The State Emergency Operations Center increased its staffing to Level III (Emergency Conditions) on August 12, coordinating and supporting emergency response across the affected region.
| Element | Value |
| Storm type | Derecho + squall lines + persistent heavy rainfall |
| Cause | Stalled frontal boundary; heat dome blocking movement; Gulf moisture feed |
| Derecho start | 12:00 UTC August 11; eastern Iowa |
| Derecho en Indiana | 17:25 UTC August 11 |
| Rainfall | 6-9 inches; central and southern Indiana |
| Hazards | Damaging winds; 2 tornadoes; large hail; flash flooding; river flooding |
| Also affected | Adjacent Ohio and Kentucky |
Indiana Flooding Deaths: Seven Killed Across Six Counties, 300,000+ Power Outages, and Major Flood Stage Reached on Multiple Rivers
Indiana flooding deaths from the August 2026 event reached seven confirmed fatalities across six counties as of August 28, with more than 300,000 power outages recorded at peak, multiple rivers driven beyond major flood stage, and widespread structural tree and road damage reported across central and southern Indiana.
The seven deaths occurred in the following counties:
- Delaware County: 2 deaths
- Jennings County: 1 death
- Lake County: 1 death
- LaPorte County: 1 death
- Henry County: 1 death
- Porter County: 1 death
An additional fatality initially reported in Monroe County was later determined by Indiana DHS not to be event-related.
Power outages followed the derecho’s track and the subsequent storm rounds. At their peak, more than 300,000 Indiana households and businesses lost electricity. Lake and Porter counties, served by NIPSCO (Northern Indiana Public Service Company), sustained the largest concentration of outages. By August 21, statewide outages had been reduced to 42,334. By August 25, remaining outages stood at 5,035.
Widespread tree falls across central Indiana contributed to the prolonged outage recovery timeline. Trees came down on power lines across the region, requiring clearance before restoration crews could reach and repair downed infrastructure. Road closures from flood water, tree debris, and damaged road surfaces hampered both emergency response and utility restoration.
| County | Deaths | Power Impact |
| Delaware | 2 | Major storm damage |
| Jennings | 1 | River flooding |
| Lake | 1 | Largest outage concentration (NIPSCO) |
| LaPorte | 1 | Major outages |
| Henry | 1 | Storm damage |
| Porter | 1 | Major outage concentration (NIPSCO) |
| Monroe | 0 (1 death not event-related) | – |
| Statewide | 7 deaths | 300,000+ peak outages |
Governor Braun’s Declaration, Trump’s Federal Approval, and FEMA EM-3651 for 53 Indiana Counties
Governor Mike Braun issued a statewide disaster declaration for the severe weather and flooding on August 13, 2026, followed by President Trump’s approval of a federal Emergency Declaration on August 15, authorising FEMA to directly support the response to flooding across 53 Indiana counties under FEMA EM-3651 Indiana Severe Weather.
Governor Braun’s August 13 declaration was the immediate state-level response to the scope of damage. Nineteen counties separately issued county-level emergency declarations, including Carroll, Cass, Dearborn, Delaware, Fayette, Franklin, Hamilton, Henry, Lake, LaPorte, Madison, Marion, Marshall, and Porter.
President Trump’s August 15 approval of the federal Emergency Declaration enabled FEMA to provide direct federal assistance, including specialised teams, equipment, supplies, and technical support. The 53 counties covered under the declaration include:
Allen, Bartholomew, Boone, Carroll, Cass, Clinton, Dearborn, Decatur, Delaware, Fayette, Fountain, Franklin, Fulton, Grant, Hamilton, Hancock, Harrison, Hendricks, Henry, Jasper, Jay, Jefferson, Jennings, Knox, Kosciusko, Lake, LaPorte, Madison, Marion, Marshall, Miami, Morgan, Newton, Orange, Owen, Parke, Perry, Pike, Porter, Pulaski, Randolph, Ripley, Rush, Shelby, St. Joseph, Starke, Tipton, Union, Wabash, Warren, Washington, Wayne, and White.
FEMA and Indiana DHS began aerial windshield Joint Preliminary Damage Assessments (JPDAs) across all parts of the state on August 18. The JPDAs were completed on August 21. These assessments are the required first step before a formal major disaster declaration request can be submitted to FEMA, which carries a broader range of assistance programmes than the current emergency declaration.
An insurance moratorium was also applied retroactively to the day before the disaster occurred in Indiana.
| Date | Action | Authority |
| August 11, 2026 | Derecho and flooding begin | – |
| August 12, 2026 | State Emergency Ops Center to Level III | Indiana SEOC |
| August 13, 2026 | Statewide disaster declaration | Governor Mike Braun |
| August 15, 2026 | Federal Emergency Declaration approved | President Trump / FEMA EM-3651 |
| August 18-21, 2026 | Joint Preliminary Damage Assessments completed | FEMA and Indiana DHS |
FEMA Assistance, $5,000 Individual Grants, Housing Payments, and Disaster Loans for Hoosiers
FEMA assistance under Indiana Emergency Declaration EM-3651 includes direct housing payments to hotels and landlords for displaced residents, individual emergency aid grants of up to $5,000 per household through the Indiana State Disaster Relief Fund, and low-interest disaster loans through the US Small Business Administration for affected businesses and nonprofits.
FEMA housing assistance operates through direct payments made to hotels or landlords rather than to individuals. The amounts vary based on the accommodation chosen, unit size, and local market conditions. Residents who need housing assistance can access information through the American Red Cross Resource Directory, searchable by ZIP Code, keyword, or programme name.
The Indiana State Disaster Relief Fund provides grants of up to $5,000 per eligible household for essential items including clothing and uninsured medical devices. Governor Braun announced the fund on August 17.
Businesses and nonprofits are eligible to apply separately for SBA low-interest loans, including physical disaster loans for property damage and economic injury disaster loans for revenue losses.
Community support accompanied the government response. The Indianapolis Colts and Indiana Pacers each donated $125,000 to flood relief efforts on August 16. AEP Ohio donated $150,000 to the Red Cross Central and Southern Ohio Region on August 17. Cultivate Food Rescue sent 6,000 initial meals to Indianapolis. Fuel resources, including gasoline and diesel gravity-feed fuel tanks, were distributed to Lake County to support ongoing emergency response.
A fraud warning is active: Indiana DHS advises residents to be careful about who they share personal information with, as scammers target disaster victims. Suspected fraud should be reported to reportfraud.ftc.gov.
| Resource | Amount | Who Is Eligible |
| FEMA housing payments | Varies by market and unit | Displaced residents in declared counties |
| Indiana Disaster Relief Fund | Up to $5,000 per household | Individuals in affected counties |
| SBA physical disaster loans | Low-interest | Businesses and nonprofits with property damage |
| SBA economic injury loans | Low-interest | Businesses with revenue losses |
| Red Cross shelters (Aug 25) | 5 shelters; 221 residents | Displaced residents |
Indiana’s Second Major Flood of 2026: Why the State Has Seen Historic Flooding Twice in Three Months
Indiana’s August 2026 flooding is the second major flood disaster the state has experienced in 2026, following Governor Braun’s June 19 emergency declaration for 63 Indiana counties due to flooding, severe weather, tornadic activity, and a derecho that occurred between June 9 and June 18.
Both events share the same meteorological root: stalled frontal boundaries over the Midwest, heat domes blocking weather system movement, and Gulf moisture feeds producing intense and prolonged rainfall over the same broad region. Indiana’s geography, which includes flat agricultural plains in the north and river valleys in the south and central regions, creates conditions where heavy rainfall rapidly overwhelms drainage capacity and drives rivers to flood stage.
August 2026 has been an exceptionally active month for natural disasters more broadly. In the same week Indiana’s derecho struck on August 11, storms were battering northern Italy. The Italy storm on August 16, 2026, diverted all incoming Milan flights and struck Lombardia and Toscana with 18,000 lightning strikes.
Indiana Flooding August 2026: Historic Event, Active Federal Response, Recovery Under Way
Indiana severe flooding of August 2026 has killed seven people, peaked at 300,000+ power outages, driven multiple rivers to major flood stage, and triggered the largest federal and state disaster response Indiana has seen in 2026 under FEMA EM-3651. Fifty-three counties are covered. Individual grants of up to $5,000 are available. Housing payments, SBA loans, and Red Cross shelter resources are active. Joint Preliminary Damage Assessments were completed on August 21, and a full major disaster declaration request is being prepared, which would expand the assistance available to affected Hoosiers significantly. Universalnest.com tracks this and every major natural disaster within its Natural Disasters and Environmental Crises coverage across Current Affairs.
Frequently Asked Questions
How many people died in Indiana’s August 2026 flooding?
Seven people died across six Indiana counties: Delaware County (2 deaths), Jennings, Lake, LaPorte, Henry, and Porter counties (1 each). An additional Monroe County death was determined not to be event-related. The storm system began on August 11, 2026, with a derecho that developed over eastern Iowa.
How many Indiana counties are covered under FEMA Emergency Declaration EM-3651?
FEMA Emergency Declaration EM-3651 covers 53 Indiana counties following President Trump’s approval on August 15, 2026. The declaration authorises FEMA to provide direct federal assistance, including specialised teams, equipment, housing support, and technical resources, to help Indiana recover from the August 11 flooding event.
How can Indiana flood victims apply for disaster assistance?
Residents in the 53 declared counties can apply for individual grants of up to $5,000 through the Indiana State Disaster Relief Fund for essential items. FEMA provides direct housing payments to hotels and landlords for displaced residents. Businesses and nonprofits can separately apply for low-interest SBA physical disaster loans and economic injury loans.
What caused Indiana’s August 2026 flooding?
A stalled frontal boundary over the Midwest, prevented from moving by a heat dome over the southern US, combined with moisture fed by a Gulf high-pressure system to produce a derecho on August 11 and then repeated rounds of heavy rainfall. Some areas received 6 to 9 inches of rain, driving multiple rivers to major flood stage.
How bad were Indiana’s power outages from the August 2026 flooding?
At peak, Indiana’s August 2026 severe weather caused more than 300,000 power outages statewide. Lake and Porter counties, served by NIPSCO, had the largest concentrations. Outages were reduced to 42,334 by August 21 and approximately 5,035 by August 25 as restoration crews cleared trees and repaired damaged infrastructure.
Was the August 2026 event Indiana’s first major flood of the year?
No. Indiana experienced a separate flooding event from June 9 to June 18, 2026, which prompted Governor Mike Braun to issue a state emergency declaration for 63 counties on June 19. The August 2026 event was Indiana’s second major flooding disaster of the year, and the first to receive a federal FEMA emergency declaration.
