Alcona County

Every recorded tornado

1. Injuries and deaths are for the tornado’s whole path, which may extend beyond the county. Deaths recorded within Alcona County: 0.
2. Weak tornadoes were under-recorded before Doppler radar coverage became national in the early 1990s, so earlier decades read low. Ratings use the Fujita scale before February 2007 and the Enhanced Fujita scale after.

Storm Prediction Center severe weather database, 1950 to 2025.

Every storm within 100 miles

1. Tropical storms and hurricanes (34 kt or more, still tropical) at closest approach. Post-tropical remnants with gale-force winds are listed but not counted. Direct: track within 50 miles; near: within 100 miles. Distance is measured to the county boundary for counties and to the city centre for cities, using positions interpolated hourly between HURDAT2 fixes.

National Hurricane Center HURDAT2, 1851 to 2025.

Every large fire

1. Large fires mapped by the Monitoring Trends in Burn Severity program since 1984: 1,000 acres or more in the West, 500 or more in the East. Prescribed burns are excluded. Acres here are the part of each perimeter inside this place.

Monitoring Trends in Burn Severity (USGS and U.S. Forest Service), 1984 to 2026.

Smoke overhead

1. A smoke day is a date on which a smoke plume traced by NOAA Hazard Mapping System analysts from satellite imagery covered this place's point (the county's population centre or the city centre). Counts here are of medium or heavy smoke. Since 2018 analysts have often drawn light smoke as one area over most of the continent, so light-smoke counts are not comparable from year to year. The plumes show smoke anywhere in the air above, not air quality at the ground, and smoke hidden by cloud is missed.

NOAA Hazard Mapping System smoke analysis, 2011 to 2026, retrieved October 30, 2026.

Claims by ZIP code

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026. NOAA Storm Events through 2026.

1. The Palmer Drought Severity Index is computed by NOAA each month from the county's average temperature and precipitation, relative to the county's own climate. Zero is normal; -3 or lower is severe drought and -4 or lower extreme drought. It describes the long-term balance of moisture, not water supply or crop losses.

NOAA NCEI nClimDiv county Palmer Drought Severity Index, 1895 to September 2026, issued October 6, 2026.

Costliest events since 1996

1. Jul 3, 1999Tornado$250,000
   National Weather Service narrative

   Continuation of Oscoda County tornado. Hundreds of trees down and 16 homes damaged.

2. Jun 22, 2008Flash Flood$100,000
   National Weather Service narrative

   Several rounds of slow-moving thunderstorms dumped heavy rain across far southern Alcona County. Radar estimated three to six inches of rainfall in Mikado and Greenbush Townships. Flash flooding occurred on Grey and Roy Creeks, washing out several driveways and side roads, and closing parts of Alvin, Goddard, and London Roads.

3. Oct 21, 2019Lakeshore Flood, Alcona$54,000
   National Weather Service narrative

   Severe beach erosion occurred at Black River. The overlook at the end of East Main Street in Harrisville was damaged.

4. Jun 22, 2008Tornado$50,000
   National Weather Service narrative

   EF1 tornado, with winds estimated up to 100 mph. Tornado tracked through a heavily forested area, downing many trees west of Mount Maria Road, east of Consolidated Road, and north of the West Branch River.

5. Jul 10, 2017Flash Flood$40,000
   National Weather Service narrative

   Two separate rain gauges in the Lincoln area measured around seven inches of rain in a three-hour period. Numerous roads in the Lincoln area were inundated and closed for part of the evening, including Gehres and Barlow Roads. A number of basements were flooded.

6. Aug 12, 2025Thunderstorm Wind$25,000
   National Weather Service narrative

   Delayed report including images of over two dozen trees uprooted on the east side of Hubbard Lake. Some had fallen on homes.

7. Jul 18, 2013Thunderstorm Wind$24,000
   National Weather Service narrative

   Several trees were downed onto homes, and power outages were widespread.

8. Oct 18, 2007Tornado$15,000
   National Weather Service narrative

   This is the 2nd segment of a tornado that originated near McCollum Lake in Oscoda County. The damage path was sporadic in Alcona County, as the parent storm raced to the northeast. Damage was confined to trees in Alcona County. Winds were estimated at 105 mph, making it an EF1.

9. Jul 8, 2016Thunderstorm Wind$15,000
   National Weather Service narrative

   A camper was blown open, and an outbuilding had its roof torn off.

10. May 30, 2007Thunderstorm Wind$10,000
    National Weather Service narrative

    Large tree downed at a campground, falling onto a camper trailer. Power lost in part of campground.

1. Storm Events records before 1996 cover only tornadoes, thunderstorm wind and hail. Damage figures are as reported by the National Weather Service at the time, not adjusted for inflation.

NOAA NCEI Storm Events Database, 1950 to 2026, issued October 26, 2026.

All-time high

103°FAug 7, 2001

All-time low

−22°FFeb 18, 1979

Warmest night

74°FJul 9, 1981

Coldest day

−1°FJan 10, 1982

Wettest day

3.43 inSep 26, 2005

Snowiest day

13.7 inJan 29, 2019

Hottest year

1998mean 49.9°F

Coldest year

2014mean 41.2°F

Wettest year

200640.88 in

Driest year

201521.55 in

Snowiest season

93.0 in2008-09

Station Harrisville Sp (USC00203628), 612 ft elevation, 8.4 miles from the population centre. Daily records from 1971 to October 27, 2026; 94.3% of days in the last 30 years are complete. Records at a single station can differ from a city’s official threaded record, which may combine several stations.

NOAA NCEI Global Historical Climatology Network Daily.

This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).

OpenFEMA Disaster Declarations Summaries, retrieved October 30, 2026. Statewide declarations are not listed.

Neighbouring counties

• Tornadoes NOAA Storm Prediction Center severe weather database, through 2025.
• Tropical cyclones NOAA National Hurricane Center HURDAT2 (Atlantic; Northeast and Central Pacific), through 2025.
• Wildfire USGS/USFS Monitoring Trends in Burn Severity, through 2026.
• Storm events NOAA NCEI Storm Events Database, through 2026.
• Flood insurance OpenFEMA NFIP Redacted Claims v3, refreshed August 4, 2026.
• Declarations OpenFEMA Disaster Declarations Summaries v2, retrieved October 30, 2026.
• Weather records NOAA NCEI Global Historical Climatology Network Daily, station USC00203628.
• River crests NOAA National Weather Service, National Water Prediction Service river gauges, retrieved October 30, 2026.
• Drought NOAA NCEI nClimDiv county Palmer Drought Severity Index, through September 2026.
• Smoke NOAA NESDIS Hazard Mapping System smoke analysis, retrieved October 30, 2026.
• Earthquakes USGS ANSS Comprehensive Earthquake Catalog (ComCat), retrieved October 30, 2026.

Joins, thresholds and known limits are set out in the methodology. Found an error? Report it. Page built October 30, 2026.