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Flood in Delta County, Michigan
15 floods and flash floods events in the NCEI Storm Events record, 1950 to 2026. Event types counted: Flood, Flash Flood, Coastal Flood, Lakeshore Flood.
NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026.
Delta County, Michigan, has 15 flood events in the NCEI record since 1950, with at least one in 11 different years.
April is the busiest month, with 7 of the recorded events. The last 20 years account for 10 events against 5 in the 20 years before, a change that reflects reporting practice as much as weather.
The county holds 1.1% of the 1,305 flood events recorded in Michigan; its 1.3 per 100 square miles compares with 2.3 statewide.
Compared with Michigan
| Measure | Delta County | Michigan | US |
|---|---|---|---|
| Flood events since 1950 | 15 | 1,305 | 183,559 |
| Per 100 square miles | 1.3 | 2.3 | 5.2 |
| Per 10,000 residents | 4.1 | 1.3 | 5.5 |
| Deaths recorded | 0 | 12 | 2,961 |
| Busiest month | April | May | June |
By year
Seasonality
0Feb
0Mar
0Apr
7May
1Jun
1Jul
4Aug
1Sep
0Oct
1Nov
0Dec
0
Recorded events
All 15 events, most recent first. Magnitude is hail size, tornado rating or wind speed as recorded.
| Date | Event type | Magnitude | Property damage | Crop damage | Deaths | Injuries | Geography |
|---|---|---|---|---|---|---|---|
| 12 Apr 2026 | Flood | — | $550K | — | — | — | County |
| 13 Apr 2023 | Flood | — | $30K | — | — | — | County |
| 14 Apr 2022 | Flood | — | — | — | — | — | County |
| 21 Oct 2019 | Lakeshore Flood | — | $100K | — | — | — | Forecast zone |
| 20 Apr 2019 | Flood | — | — | — | — | — | County |
| 11 Apr 2014 | Flood | — | $85K | — | — | — | County |
| 23 Jun 2010 | Flash Flood | — | $5K | — | — | — | County |
| 8 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 8 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 8 Jul 2007 | Flash Flood | — | — | — | — | — | County |
| 28 May 2006 | Flash Flood | — | — | — | — | — | County |
| 2 Apr 2005 | Flood | — | — | — | — | — | Forecast zone |
| 1 Aug 2002 | Flash Flood | — | — | — | — | — | County |
| 8 Jul 1996 | Flood | — | — | — | — | — | County |
| 20 Apr 1996 | Flood | — | $800K | — | — | — | Forecast zone |
Questions and answers
How many flood events has Delta County had?
15 events in the NCEI Storm Events record between 1950 and 2026. Reporting of floods and flash floods became far more complete after 1996, so early decades undercount.
When was the last recorded flood event in Delta County?
12 Apr 2026 (Flood). Records reach NCEI about 120 days after the month ends.
What was the most damaging flood event recorded in Delta County?
The flood of 20 Apr 1996, with property damage estimated by NCEI at $800K.
How does Delta County compare with Michigan for flood?
1.3 events per 100 square miles against 2.3 statewide; the county holds 15 of the state's 1,305 recorded events.
Provenance
NOAA NCEI Storm Events Database, yearly details files through 30 Jun 2026, public domain. County-recorded events plus zone-recorded events whose forecast zone is named for the county (marked "Forecast zone"). Population and area from the US Census Bureau (2021). Built 1 Oct 2026. See the methodology, the Flood hub and the county page.