Leonardsville, NY Natural Disasters and Weather Extremes
The chance of earthquake damage in Leonardsville is lower than New York average and is much lower than the national average. The risk of tornado damage in Leonardsville is lower than New York average and is much lower than the national average.
Earthquake Index, #1420
Leonardsville, NY | 0.04 |
New York | 0.58 |
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
Leonardsville, NY | 0.0000 |
New York | 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, #1301
Leonardsville, NY | 34.34 |
New York | 49.25 |
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 3,532 other weather extremes events within 50 miles of Leonardsville, NY 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: | 1 | Cold: | 43 | Dense Fog: | 0 | Drought: | 10 |
Dust Storm: | 0 | Flood: | 457 | Hail: | 652 | Heat: | 14 | Heavy Snow: | 196 |
High Surf: | 0 | Hurricane: | 0 | Ice Storm: | 13 | Landslide: | 0 | Strong Wind: | 56 |
Thunderstorm Winds: | 1,835 | Tropical Storm: | 0 | Wildfire: | 0 | Winter Storm: | 65 | Winter Weather: | 12 |
Other: | 178 |
Volcanos Nearby
No volcano is found in or near Leonardsville, NY.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Leonardsville, NY.
No historical earthquake events found in or near Leonardsville, NY.
Historical Tornado Events
A total of 9 historical tornado events that had recorded magnitude of 2 or above found in or near Leonardsville, NY.
Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
15.8 | 1976-06-16 | 2 | 42°41'N / 75°01'W | 42°41'N / 74°58'W | 0 | 0 | 250K | 0 | Otsego | ||
21.1 | 1998-05-31 | 3 | 42°32'N / 75°06'W | 42°35'N / 74°56'W | 5.00 Miles | 800 Yards | 0 | 3 | 800K | 0 | Otsego |
Brief Description: A supercell thunderstorm became tornadic as it crossed southern portions of the county around 6:30 pm EDT. The storm cut nearly a 5 mile path from Laurens eastward into Milford township. This twister incurred major damage to heavily forested areas. Thousands of trees were laid out with the width of damage varying up to nearly a half mile in spots. Trees were blown over in a chaotic and almost circular pattern as viewed from aerial damage surveys. Several homes within the path of the twister also sustained heavy damage. In the town of Laurens, a well built home was nearly destroyed with only the back and a portion of the side wall left in tact. Many local roads were closed for up to 3 days as fallen trees made them completely impassable. This included portions of routes 12 and 44. The cell appeared to weaken as it approached Interstate 88 just east of Milford. County emergency officials estimated damage totals in excess of three quarters of a million dollars from this twister. Most of it stemmed from deforestation, repair of utility poles, and other repairs to homes and public structures. Three minor injuries were sustained from falling tree limbs and flying debris. An intensifying storm system moved across upstate New York and into southern Quebec early in the morning on the 31st. This system dragged a warm front northeastward across central New York. A southerly flow of warm, moist, and unstable air quickly developed. This set the stage for severe weather that afternoon and evening as a cold front and strong upper air disturbance approached. From early in the afternoon until the evening hours, central New York was under siege from severe thunderstorms, including several tornadic supercells. In all, six separate tornadoes touched down on this day in central New York. The most devastating twister cut a discontinuous sixty plus mile track from southeastern Tioga county across southern Broome county and into Delaware county where it finally lifted back into the cloud base. This tornado alone damaged or destroyed more than 30 homes and injured nearly 20 people. Very fortunately, no fatalities occurred. Another violent tornado ripped through southern sections of Otsego county between Laurens and Milford. Thousands of trees were snapped off or uprooted with large sections of forest completely taken out. Several residences were leveled and many roads were impassable for days due to the fallen debris. The damage toll from this day's tornadoes ran into the millions. Several strong bow echo complexes also affected central New York. From southern Chenango county through the lower half of Otsego county, one such storm took out hundreds of trees and inflicted considerable structural damage in and around Oneonta. One man was killed in Oneonta when hit by a falling tree limb. Throughout Onondaga county, wind gusts estimated at 90 to 100 mph caused widespread damage early in the evening between 6:00 and 6:30 pm EDT. Two large transmission towers near Nedrow were toppled from the winds and many buildings had blown out windows and/or roof damage. Hail as large as 3 to 4 inches in diameter accompanied some of the tornadic supercells across New York's southern tier; smashing windows, severely denting cars, and causing crop losses. New York State Electric and Gas Company estimated that hundreds of thousands of customers were without power during the height of the storms late that afternoon and evening. Some of the more remote locations did not have power restored for the better part of a week. | |||||||||||
22.0 | 1998-05-31 | 2 | 42°37'N / 75°36'W | 42°37'N / 75°36'W | 1.00 Mile | 1500 Yards | 0 | 0 | 500K | 0 | Chenango |
Brief Description: A supercell thunderstorm became tornadic near Plymouth Reservoir in Plymouth township around 5:50 pm EDT. Although the tornado's touchdown was brief, it still cut a large swath of damage nearly a 1/4 mile wide and mowed down hundreds of trees around the reservoir. A few homes on the outer fringes of the tornado's sphere of influence had roof and siding damage. An intensifying storm system moved across upstate New York and into southern Quebec early in the morning on the 31st. This system dragged a warm front northeastward across central New York. A southerly flow of warm, moist, and unstable air quickly developed. This set the stage for severe weather that afternoon and evening as a cold front and strong upper air disturbance approached. From early in the afternoon until the evening hours, central New York was under siege from severe thunderstorms, including several tornadic supercells. In all, six separate tornadoes touched down on this day in central New York. The most devastating twister cut a discontinuous sixty plus mile track from southeastern Tioga county across southern Broome county and into Delaware county where it finally lifted back into the cloud base. This tornado alone damaged or destroyed more than 30 homes and injured nearly 20 people. Very fortunately, no fatalities occurred. Another violent tornado ripped through southern sections of Otsego county between Laurens and Milford. Thousands of trees were snapped off or uprooted with large sections of forest completely taken out. Several residences were leveled and many roads were impassable for days due to the fallen debris. The damage toll from this day's tornadoes ran into the millions. Several strong bow echo complexes also affected central New York. From southern Chenango county through the lower half of Otsego county, one such storm took out hundreds of trees and inflicted considerable structural damage in and around Oneonta. One man was killed in Oneonta when hit by a falling tree limb. Throughout Onondaga county, wind gusts estimated at 90 to 100 mph caused widespread damage early in the evening between 6:00 and 6:30 pm EDT. Two large transmission towers near Nedrow were toppled from the winds and many buildings had blown out windows and/or roof damage. Hail as large as 3 to 4 inches in diameter accompanied some of the tornadic supercells across New York's southern tier; smashing windows, severely denting cars, and causing crop losses. New York State Electric and Gas Company estimated that hundreds of thousands of customers were without power during the height of the storms late that afternoon and evening. Some of the more remote locations did not have power restored for the better part of a week. | |||||||||||
22.7 | 1977-09-18 | 2 | 42°50'N / 75°42'W | 2.00 Miles | 60 Yards | 0 | 1 | 250K | 0 | Madison | |
23.7 | 2009-05-16 | 2 | 42°45'N / 75°46'W | 42°46'N / 75°40'W | 5.00 Miles | 150 Yards | 0 | 1 | 50K | 0K | Madison |
Brief Description: EVENT NARRATIVE: A NWS storm survey team determined that damage in the county was caused by a severe thunderstorm that produced a tornado. Most of the damage along the path was to trees. Significant damage occurred approximately 1 mile south of the Village of Georgetown. A large barn was destroyed, a roof was torn off a house, several outbuildings and sheds were destroyed, and power poles were snapped. There was one injury at this location. A second farm on Upham Road was hit, destroying a large barn, a silo and a couple of sheds. Some livestock were lost at this location. A farmstead near Niles Road also received damage to a silo, and damage to the home's roof and siding. EPISODE NARRATIVE: A cold front moved east across New York state during the evening. Ahead of the front, showers and thunderstorms developed. Two of the thunderstorms produced tornadoes, with other scattered severe thunderstorms producing reports of wind damage and large hail. | |||||||||||
27.8 | 1990-07-23 | 2 | 43°08'N / 75°35'W | 43°15'N / 75°16'W | 17.00 Miles | 77 Yards | 0 | 0 | 25K | 0 | Oneida |
33.7 | 1989-10-14 | 2 | 42°30'N / 75°46'W | 2.00 Miles | 300 Yards | 2 | 3 | 25K | 0 | Chenango | |
38.6 | 1989-07-10 | 4 | 42°50'N / 74°32'W | 42°47'N / 74°27'W | 6.00 Miles | 1320 Yards | 0 | 0 | 25.0M | 0 | Montgomery |
46.7 | 1983-05-02 | 3 | 43°29'N / 75°22'W | 43°29'N / 75°18'W | 3.00 Miles | 450 Yards | 0 | 0 | 25.0M | 0 | Oneida |
* 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.