Kalkaska County Natural Disasters and Weather Extremes
The chance of earthquake damage in Kalkaska County is about the same as Michigan average and is much lower than the national average. The risk of tornado damage in Kalkaska County is much lower than Michigan average and is much lower than the national average.
Earthquake Index, #53
| Kalkaska County | 0.00 |
| Michigan | 0.04 |
| U.S. | 1.81 |
The earthquake index value is calculated based on historical earthquake events data using USA.com algorithms. It is an indicator of the earthquake level in a region. A higher earthquake index value means a higher chance of an earthquake.
Volcano Index, #1
| Kalkaska County | 0.0000 |
| Michigan | 0.0000 |
| U.S. | 0.0023 |
The volcano index value is calculated based on the currently known volcanoes using USA.com algorithms. It is an indicator of the possibility of a region being affected by a possible volcano eruption. A higher volcano index value means a higher chance of being affected.
Tornado Index, #50
| Kalkaska County | 60.08 |
| Michigan | 140.33 |
| U.S. | 136.45 |
The tornado index value is calculated based on historical tornado events data using USA.com algorithms. It is an indicator of the tornado level in a region. A higher tornado index value means a higher chance of tornado events.
Other Weather Extremes Events
A total of 3,909 other weather extremes events within 50 miles of Kalkaska County were recorded from 1950 to 2010. The following is a break down of these events:
| Type | Count | Type | Count | Type | Count | Type | Count | Type | Count |
| Avalanche: | 0 | Blizzard: | 32 | Cold: | 16 | Dense Fog: | 6 | Drought: | 5 |
| Dust Storm: | 0 | Flood: | 156 | Hail: | 1,063 | Heat: | 10 | Heavy Snow: | 314 |
| High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 32 | Landslide: | 0 | Strong Wind: | 68 |
| Thunderstorm Winds: | 1,820 | Tropical Storm: | 0 | Wildfire: | 5 | Winter Storm: | 220 | Winter Weather: | 33 |
| Other: | 129 | ||||||||
Volcanos Nearby
No volcano is found in or near Kalkaska County.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Kalkaska County.
No historical earthquake events found in or near Kalkaska County.
Historical Tornado Events
A total of 20 historical tornado events that had recorded magnitude of 2 or above found in or near Kalkaska County.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 5.5 | 2007-10-18 | 2 | 44°40'N / 85°13'W | 44°43'N / 85°11'W | 4.00 Miles | 430 Yards | 1 | 1 | 1.1M | 0K | Kalkaska |
| Brief Description: EVENT NARRATIVE: The Kalkaska tornado was the first killer tornado in Northern Lower Michigan in over 30 years. It touched down just south of Crofton, and tracked north-northeast, lifting just after crossing the Kalkaska County Airport. A home was damaged in a subdivision just south of Crofton. The most substantial damage, as well as the fatality, occurred near the intersection of US-131 and Crofton Road. A large metal warehouse was damaged, a single wide mobile home was destroyed, and several stick-built homes received moderate to severe damage. The fatality and injury occurred inside the mobile home. A 29 year old man was pulled from the mobile home, but passed away at a nearby hospital. Numerous large trees were also uprooted. The damage became more sporadic to the northeast, until another pocket of concentrated damage at the Kalkaska County Airport. Several hangars and small planes were damaged, as were several homes in the area. Sheet metal from one of the hangars was deposited near the Kalkaska Middle School. Winds were estimated at 120 mph, making it an EF2. EPISODE NARRATIVE: An historic tornado outbreak rocked Northern Lower Michigan on the afternoon and evening of October 18th. The day started out cool and rainy, but a dry slot aloft allowed sunshine to break out in the afternoon. Temperatures rose into the lower to middle 70s in parts of the area. The warm and humid air was unstable enough to fuel multiple rounds of thunderstorms in the late afternoon and evening hours. There was a tremendous amount of shear in the atmosphere, and many storms quickly became supercells with rotating updrafts. This was an environment conducive to tornadoes, as several lines of discrete supercells crossed Northern Lower Michigan. Northern Lower Michigan had a record six tornadoes on the day. The previous high was five, set on June 17 1992. Unfortunately, the Kalkaska tornado produced a fatality. That was the first tornado fatality in Northern Lower Michigan since March 30 1976, when a single death occurred in Ogemaw County. | |||||||||||
| 9.3 | 1976-07-23 | 2 | 44°34'N / 85°15'W | 44°35'N / 85°10'W | 3.30 Miles | 83 Yards | 0 | 5 | 25K | 0 | Kalkaska |
| 14.2 | 1961-09-13 | 2 | 44°46'N / 85°30'W | 44°46'N / 85°12'W | 14.40 Miles | 33 Yards | 0 | 0 | 25K | 0 | Grand Traverse |
| 16.9 | 1975-04-19 | 2 | 44°46'N / 84°46'W | 1.50 Miles | 77 Yards | 0 | 14 | 250K | 0 | Crawford | |
| 19.1 | 1973-05-20 | 2 | 44°36'N / 84°43'W | 0 | 0 | 0K | 0 | Crawford | |||
| 22.2 | 1964-05-08 | 2 | 44°54'N / 85°32'W | 44°58'N / 85°12'W | 16.60 Miles | 440 Yards | 0 | 0 | 250K | 0 | Grand Traverse |
| 22.8 | 1974-06-10 | 2 | 44°28'N / 84°44'W | 0.30 Mile | 50 Yards | 0 | 0 | 3K | 0 | Roscommon | |
| 25.6 | 1964-09-03 | 2 | 44°19'N / 85°12'W | 0 | 0 | 250K | 0 | Missaukee | |||
| 26.9 | 1969-06-26 | 3 | 44°45'N / 85°40'W | 44°49'N / 85°34'W | 6.40 Miles | 600 Yards | 0 | 0 | 250K | 0 | Grand Traverse |
| 27.4 | 1977-07-31 | 2 | 45°03'N / 85°16'W | 45°06'N / 84°57'W | 15.60 Miles | 200 Yards | 0 | 0 | 0K | 0 | Antrim |
| 27.8 | 1973-05-25 | 2 | 44°22'N / 84°44'W | 0 | 0 | 0K | 0 | Roscommon | |||
| 27.9 | 1974-07-03 | 3 | 45°05'N / 85°06'W | 45°04'N / 84°51'W | 11.90 Miles | 67 Yards | 0 | 2 | 250K | 0 | Antrim |
| 29.2 | 1974-07-03 | 3 | 45°04'N / 84°51'W | 45°03'N / 84°48'W | 0 | 0 | 250K | 0 | Otsego | ||
| 30.7 | 1956-04-03 | 4 | 44°43'N / 85°48'W | 44°53'N / 85°35'W | 15.40 Miles | 400 Yards | 0 | 0 | 250K | 0 | Grand Traverse |
| 31.5 | 1977-07-31 | 2 | 45°06'N / 84°57'W | 45°08'N / 84°52'W | 3.80 Miles | 33 Yards | 0 | 0 | 0K | 0 | Charlevoix |
| 35.5 | 1963-07-31 | 2 | 44°18'N / 85°24'W | 44°04'N / 85°10'W | 19.60 Miles | 50 Yards | 0 | 0 | 250K | 0 | Wexford |
| 36.0 | 1974-06-07 | 2 | 44°14'N / 85°28'W | 1.20 Miles | 70 Yards | 0 | 1 | 25K | 0 | Wexford | |
| 42.1 | 1956-04-03 | 4 | 44°31'N / 86°05'W | 44°43'N / 85°48'W | 19.40 Miles | 400 Yards | 2 | 24 | 250K | 0 | Benzie |
| 43.2 | 2007-10-18 | 2 | 44°38'N / 84°18'W | 44°45'N / 84°07'W | 12.00 Miles | 865 Yards | 0 | 0 | 1.4M | 0K | Oscoda |
| Brief Description: EVENT NARRATIVE: The Oscoda County tornado may have been the strongest of the six on the day. Thankfully, it spent almost all of its lifetime in unpopulated areas of the Huron National Forest, though that makes its strength difficult to estimate. Tens of thousands of trees were estimated to have been uprooted or otherwise downed, and many power lines were downed. About 16 structures were damaged, mostly outbuildings or cabins. Three cabins, near Cherry Lane and Cherry Creek Road, were destroyed. Winds were estimated at 115 mph, making it an EF2. EPISODE NARRATIVE: An historic tornado outbreak rocked Northern Lower Michigan on the afternoon and evening of October 18th. The day started out cool and rainy, but a dry slot aloft allowed sunshine to break out in the afternoon. Temperatures rose into the lower to middle 70s in parts of the area. The warm and humid air was unstable enough to fuel multiple rounds of thunderstorms in the late afternoon and evening hours. There was a tremendous amount of shear in the atmosphere, and many storms quickly became supercells with rotating updrafts. This was an environment conducive to tornadoes, as several lines of discrete supercells crossed Northern Lower Michigan. Northern Lower Michigan had a record six tornadoes on the day. The previous high was five, set on June 17 1992. Unfortunately, the Kalkaska tornado produced a fatality. That was the first tornado fatality in Northern Lower Michigan since March 30 1976, when a single death occurred in Ogemaw County. | |||||||||||
| 44.0 | 1991-03-27 | 2 | 44°02'N / 85°09'W | 44°03'N / 85°05'W | 4.00 Miles | 70 Yards | 0 | 0 | 3K | 0 | Osceola |
* The information on this page is based on the global volcano database, the U.S. earthquake database of 1638-1985, and the U.S. Tornado and Weather Extremes database of 1950-2010.