Montmorency County, Michigan
County storm and disaster record · FIPS 26119 · population 9,129 · 547 sq mi
NOAA's Storm Events Database holds 203 records for Montmorency County, Michigan from 1950 through June 30, 2026, on 165 days; the most frequent are winter storm records (80 records). The most damaging was the April 24, 1993 thunderstorm wind ($1.0 million in 2025 dollars). FEMA has issued 8 declarations naming the county since 1977, 6 of them for natural hazards; the latest for a natural hazard was “Severe Storms, Tornadoes, and Flooding” on June 30, 2026.
The record, 1950 to 2026
Storm records filed for the county each year (2026 to June 30, 2026). Before 1996 NOAA recorded only tornadoes (from 1950), thunderstorm wind and hail (from 1955).
- recorded, no damage figure
- under $100,000
- $100,000 or more
- $1 million or more
- $10 million or more, or a death
- $100 million or more, or 10 deaths
- a year's colour: its recorded damage or deaths
- a year with a death
- 1955: wind and hail recorded from 1955
- 1996: all 48 event types from 1996
- Storm records
- 203on 165 days, 1950 to June 30, 2026
- Deaths recorded
- 02 injuries
- Damage, 2025 dollars
- $2.3Mas filed (scale steps before 1993)
- Tornadoes
- 6strongest F1
- FEMA declarations
- 8latest 2026
Source: NOAA NCEI Storm Events Database, records through June 30, 2026 (file revision 20260918); damage converted to 2025 dollars with the BLS CPI-U. Search the record at NCEI. BLS consumer price index.
What hazards hit Montmorency County most?
The most frequent records are winter storm records: 80 since 1997. 45% of its winter storm records since 1997 fell in December and January. The rank column places the county among Michigan's counties by days with a record per 1,000 square miles of land over each hazard's complete period.
| Hazard | Records | Days | First, last | Killed | Injured | Damage | Rank in state |
|---|---|---|---|---|---|---|---|
| Winter storms | 80 | 80 | 1997-2026 | 0 | 0 | $212K | 41 of 83 |
| Severe thunderstorm wind | 56 | 46 | 1973-2021 | 0 | 2 | $1.4M | 60 of 83 |
| Hail | 45 | 32 | 1983-2025 | 0 | 0 | $61K | 51 of 83 |
| Extreme cold | 8 | 8 | 2007-2026 | 0 | 0 | – | 37 of 83 |
| Tornadoes | 6 | 5 | 1957-2004 | 0 | 0 | $619K | 65 of 83 |
| High wind and dust storms | 4 | 4 | 1998-2021 | 0 | 0 | $57K | 79 of 83 |
| Floods | 2 | 2 | 2001-2020 | 0 | 0 | – | 76 of 83 |
| Heat | 2 | 2 | 2001-2018 | 0 | 0 | – | 39 of 83 |
Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.
How many tornadoes has Montmorency County had?
NOAA records 6 tornadoes in Montmorency County from 1957 to 2004, the strongest rated F1, with 0 deaths and 0 injuries recorded in the county. A tornado that crossed a county line is counted in each county it touched, with the length of its path inside the county.
Counted as whole tornadoes rather than county records, the Storm Prediction Center's database holds 6 tornadoes whose track touched Montmorency County since 1950 (NOAA's county records number 6, the same count); along their whole tracks they killed 0 people.
Map of the strongest tornado tracks in Michigan.
Every tornado record filed for Montmorency County (6)
| Date | Place | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2004-06-13 | Hillman, Montmorency County | F1 7.1 mi x 50 yd | 0 | 0 | $234K |
| 1999-07-03 | Lewiston, Montmorency County | F1 1 mi x 60 yd | 0 | 0 | $106K |
| 1998-05-19 | Atlanta, Montmorency County | F0 0.1 mi x 30 yd | 0 | 0 | – |
| 1982-07-17 | Montmorency County | F0 0.1 mi x 67 yd | 0 | 0 | $3K step |
| 1982-07-17 | Montmorency County | F0 0.5 mi x 17 yd | 0 | 0 | $3K step |
| 1957-06-14 | Montmorency County | F1 1 mi x 50 yd | 0 | 0 | $25K step |
A damage figure marked "step" is a record from before 1993: NOAA then filed damage by category, and the figure is the category as entered, in the dollars of that year, not an estimate of the loss.
Source: NOAA NCEI Storm Events Database, tornado records by county (path length in the county, maximum width); ratings as published: F scale before February 1, 2007, EF scale after. Whole-track figures: NOAA Storm Prediction Center tornado database (1950-2025). SPC severe weather database.
When was the last damaging storm in Montmorency County?
The most recent record with damage, injuries or deaths is the June 5, 2005 thunderstorm wind (1 injury and $60,000 in damage in 2025 dollars).
Numerous trees were downed in southwest Montmorency County. Most of the damage was near Lewiston. A truck was struck by a falling tree, injuring the driver. Two garages in Lewiston were damaged by falling trees. Shingles were torn off of some roofs.
National Weather Service event narrative, NOAA Storm Events Database (search the full record, event 5459461)
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2026-03-15 | Winter StormMontmorency County · forecast zone Montmorency | 0 | 0 | – | |
| 2026-03-10 | Ice StormMontmorency County · forecast zone Montmorency | 0 | 0 | – | |
| 2026-02-07 | Extreme Cold/Wind ChillMontmorency County · forecast zone Montmorency | 0 | 0 | – | |
| 2026-02-06 | Cold/Wind ChillMontmorency County · forecast zone Montmorency | 0 | 0 | – | |
| 2026-01-29 | Cold/Wind ChillMontmorency County · forecast zone Montmorency | 0 | 0 | – | |
| 2026-01-28 | Extreme Cold/Wind ChillMontmorency County · forecast zone Montmorency | 0 | 0 | – | |
| 2026-01-22 | Extreme Cold/Wind ChillMontmorency County · forecast zone Montmorency | 0 | 0 | – | |
| 2025-12-28 | Winter StormMontmorency County · forecast zone Montmorency | 0 | 0 | – | |
| 2025-11-29 | Winter StormMontmorency County · forecast zone Montmorency | 0 | 0 | – | |
| 2025-04-29 | HailAtlanta, Montmorency County | 0.75 in hail | 0 | 0 | – |
| 2025-03-28 | Ice StormMontmorency County · forecast zone Montmorency | 0 | 0 | – | |
| 2025-02-03 | Winter StormMontmorency County · forecast zone Montmorency | 0 | 0 | – |
Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.
The deadliest and costliest records
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2005-06-05 | Thunderstorm WindLewiston, Montmorency County Numerous trees were downed in southwest Montmorency County. Most of the damage was near Lewiston. A truck was struck by a falling tree, injuring the driver. Two garages in Lewiston were damaged by falling trees. Shingles were torn off of some roofs. | 55 kt wind | 0 | 1 | $60K |
| 1988-08-03 | Thunderstorm WindMontmorency County | 0 | 1 | – |
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 1993-04-24 | Thunderstorm WindLewiston, Montmorency County | 0 | 0 | $1.0M | |
| 2004-06-13 | TornadoHillman, Montmorency County | F1 7.1 mi x 50 yd | 0 | 0 | $234K |
| 1999-07-03 | TornadoLewiston, Montmorency County | F1 1 mi x 60 yd | 0 | 0 | $106K |
Before 1993 NOAA filed damage by category, not amount, so the list above starts in 1993. The highest category filed here before then (entered as $25K, in the dollars of the day) holds: June 14, 1957 (tornado, Montmorency County).
Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.
Is it getting more frequent?
Records per decade for Montmorency County's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).
| Hazard | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020-26 |
|---|---|---|---|---|---|---|---|---|
| Winter storms | – | – | – | – | 10 | 36 | 20 | 14 |
| Severe thunderstorm wind | 0 | 0 | 2 | 7 | 12 | 21 | 10 | 4 |
| Hail | 0 | 0 | 0 | 1 | 19 | 13 | 7 | 5 |
Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).
What time of year?
45% of its winter storm records since 1997 fell in December and January. The two busiest months are in violet.
The values, month by month
Jan 21 · Feb 21 · Mar 14 · Apr 16 · May 16 · Jun 18 · Jul 40 · Aug 21 · Sep 3 · Oct 2 · Nov 11 · Dec 20 (records).
Source: NOAA NCEI Storm Events Database, records by the month they began.
Federal disaster declarations for Montmorency County
FEMA's register lists 8 declarations that include Montmorency County: 3 major disasters, 5 emergencies and 0 fire management assistance declarations. Most were for biological (2) and snowstorm (2).
| Declared | Number | Type | Title |
|---|---|---|---|
| 2026-06-30 | DR-4925 | Flood | Severe Storms, Tornadoes, and Flooding |
| 2025-07-22 | DR-4880 | Severe Ice Storm | Severe Winter Storm |
| 2020-03-27 | DR-4494 | Biological | Covid-19 Pandemic |
| 2020-03-13 | EM-3455 | Biological | Covid-19 |
| 2005-09-07 | EM-3225 | Hurricane | Hurricane Katrina Evacuation |
| 1999-01-27 | EM-3137 | Snowstorm | Mi - Severe Weather 1/2 /99 |
| 1978-01-27 | EM-3057 | Snowstorm | Blizzards & Snowstorms |
| 1977-03-02 | EM-3035 | Drought | Drought |
Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.
FEMA's modeled risk for Montmorency County
FEMA's National Risk Index rates Montmorency County Very Low overall, with an expected annual loss of $4.1 million. These are FEMA's model estimates of future loss from 18 hazards, not a count of what happened; they can differ from the record above.
| Hazard | Risk rating | Expected annual loss | Modeled frequency |
|---|---|---|---|
| Lightning | Relatively Moderate | $223K | 25 a year (modeled) |
| Cold Wave | Relatively Low | $423K | 2.2 a year (modeled) |
| Riverine Flooding | Relatively Low | $3.0M | once in about 14 years (modeled) |
| Landslide | Very Low | $2K | once in about 7 years (modeled) |
| Wildfire | Very Low | $56K | once in about 2,863 years (modeled) |
| Hail | Very Low | $71K | about once a year (modeled) |
| Tornado | Very Low | $170K | once in about 13 years (modeled) |
| Hurricane | Very Low | $3K | once in about 100 years (modeled) |
Source: FEMA National Risk Index, county table, December 2025 release. FEMA's National Risk Index map.
Counties that share a border with Montmorency County
Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.
Next
- Tornadoes in MichiganEvery Michigan tornado since 1950 and the counties with the most per square mile
- Winter storms in MichiganThe state's winter storm records, by county, year and month
- The Michigan recordEvery hazard in the state, its deadliest events and its federal declarations
- FEMA's risk rating for each hazard in Montmorency CountyThe hazard risk calculator: 18 hazards beside the county's record
- Download Montmorency County's FEMA declarations (CSV)8 rows: every declaration that named the county, for your own analysis