USA.com / North Carolina / Watauga County / Sugar Grove, NC / Natural Disasters and Weather Extremes
Sugar Grove, NC Natural Disasters and Weather Extremes
Hot Rankings
The chance of earthquake damage in Sugar Grove is about the same as North Carolina average and is much lower than the national average. The risk of tornado damage in Sugar Grove is much lower than North Carolina average and is much lower than the national average.
Earthquake Index, #130
| Sugar Grove, NC | 0.22 |
| North Carolina | 0.18 |
| 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
| Sugar Grove, NC | 0.0000 |
| North Carolina | 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, #905
| Sugar Grove, NC | 41.08 |
| North Carolina | 115.21 |
| 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 2,931 other weather extremes events within 50 miles of Sugar Grove, NC 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: | 0 | Cold: | 4 | Dense Fog: | 0 | Drought: | 1 |
| Dust Storm: | 0 | Flood: | 385 | Hail: | 824 | Heat: | 0 | Heavy Snow: | 40 |
| High Surf: | 0 | Hurricane: | 8 | Ice Storm: | 5 | Landslide: | 0 | Strong Wind: | 18 |
| Thunderstorm Winds: | 1,478 | Tropical Storm: | 5 | Wildfire: | 6 | Winter Storm: | 33 | Winter Weather: | 6 |
| Other: | 118 | ||||||||
Volcanos Nearby
No volcano is found in or near Sugar Grove, NC.
Historical Earthquake Events
No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Sugar Grove, NC.
No historical earthquake events found in or near Sugar Grove, NC.
Historical Tornado Events
A total of 17 historical tornado events that had recorded magnitude of 2 or above found in or near Sugar Grove, NC.
| Distance (miles) | Date | Magnitude | Start Lat/Log | End Lat/Log | Length | Width | Fatalities | Injuries | Property Damage | Crop Damage | Affected County |
| 6.8 | 1965-04-09 | 2 | 36°11'N / 81°56'W | 0.50 Mile | 300 Yards | 0 | 1 | 25K | 0 | Avery | |
| 25.0 | 1989-05-05 | 2 | 35°57'N / 81°41'W | 36°01'N / 81°25'W | 15.00 Miles | 73 Yards | 0 | 0 | 250K | 0 | Caldwell |
| 30.9 | 1962-06-03 | 2 | 36°36'N / 82°12'W | 0 | 0 | 25K | 0 | Washington | |||
| 34.7 | 1974-04-04 | 2 | 35°49'N / 81°32'W | 35°52'N / 81°27'W | 5.70 Miles | 33 Yards | 0 | 0 | 250K | 0 | Caldwell |
| 36.2 | 1979-05-24 | 2 | 35°45'N / 81°40'W | 0.30 Mile | 30 Yards | 0 | 0 | 250K | 0 | Burke | |
| 37.0 | 1975-01-25 | 2 | 36°47'N / 81°46'W | 36°47'N / 81°44'W | 1.30 Miles | 30 Yards | 0 | 0 | 25K | 0 | Washington |
| 37.9 | 1975-01-25 | 2 | 36°47'N / 81°44'W | 36°48'N / 81°42'W | 1.90 Miles | 30 Yards | 0 | 2 | 25K | 0 | Smyth |
| 38.5 | 1998-05-07 | 4 | 35°52'N / 81°23'W | 35°52'N / 81°19'W | 4.00 Miles | 1320 Yards | 0 | 2 | 1.1M | 0 | Caldwell |
| Brief Description: A violent, F4 tornado touched down near Dudley Shoals then moved east-southeast cutting a winding path through valleys, to the Alexander county border. The damage path was 100 yards wide on average, but reached a width of 3/4 of a mile at times. One well-constructed home was totally destroyed, other homes were damaged, and many mobile homes sustained damage or were destroyed. Supercell thunderstorms developed in a highly sheared atmosphere in eastern Tennessee then moved east across the mountains, foothills and western piedmont of North Carolina. These long-lived, cyclic supercells produced a considerable amount of large hail and some damaging winds in the mountains. The first tornado of the day in western North Carolina occurred in Madison county. Numerous reports of hail as large as golf balls were reported from the mountains. In Madison and Yancey counties, hail covered roads. More supercell thunderstorms developed behind the previous ones and followed similar tracks. In northern Buncombe county, the town of Barnardsville had three separate severe storms cross overhead and drop hail on the ground to a depth of 3 inches. Yancey county also had 3 separate storms move across the county that accumulated hail to 6 inches in depth. The hail was still on the ground the next morning. As the supercells moved into the foothills, they began to curve a little to the right, indicative of strong mesocyclonic circulations present. One supercell produced several tornadoes from Alexander county to Davie county. Another storm produced a tornado that tracked from western Caldwell county into south-central Alexander county. A third supercell that emerged out of the mountains in McDowell county produced several tornadoes from the southern part of that county to northern Mecklenburg county. Damage was fairly significant across western North Carolina with numerous homes either damaged or destroyed. Fortunately, no one was killed. However, 2 people were injured as a result of the violent F4 tornado in eastern Caldwell county. One person received minor injuries from a lightning strike in Yancey county later in the evening. The storms continued to reform in eastern Tennessee until very late in the evening and still produced large hail as they crossed the border into the mountain counties of North Carolina, before weakening shortly after midnight.. | |||||||||||
| 40.2 | 1957-04-08 | 2 | 36°17'N / 82°35'W | 36°19'N / 82°33'W | 3.00 Miles | 440 Yards | 0 | 0 | 3K | 0 | Washington |
| 41.8 | 1974-04-04 | 3 | 36°51'N / 81°55'W | 36°52'N / 81°49'W | 5.40 Miles | 177 Yards | 1 | 1 | 250K | 0 | Washington |
| 43.0 | 1974-04-04 | 3 | 36°52'N / 81°49'W | 36°53'N / 81°46'W | 3.00 Miles | 177 Yards | 0 | 3 | 250K | 0 | Smyth |
| 44.6 | 1998-05-07 | 2 | 35°37'N / 81°59'W | 35°37'N / 81°59'W | 3.70 Miles | 880 Yards | 0 | 0 | 482K | 0 | Mcdowell |
| Brief Description: Another supercell which tracked across the mountains spawned a tornado that travelled through a portion of Glenwood. Several homes and mobiles sustained damage or were destroyed. Supercell thunderstorms developed in a highly sheared atmosphere in eastern Tennessee then moved east across the mountains, foothills and western piedmont of North Carolina. These long-lived, cyclic supercells produced a considerable amount of large hail and some damaging winds in the mountains. The first tornado of the day in western North Carolina occurred in Madison county. Numerous reports of hail as large as golf balls were reported from the mountains. In Madison and Yancey counties, hail covered roads. More supercell thunderstorms developed behind the previous ones and followed similar tracks. In northern Buncombe county, the town of Barnardsville had three separate severe storms cross overhead and drop hail on the ground to a depth of 3 inches. Yancey county also had 3 separate storms move across the county that accumulated hail to 6 inches in depth. The hail was still on the ground the next morning. As the supercells moved into the foothills, they began to curve a little to the right, indicative of strong mesocyclonic circulations present. One supercell produced several tornadoes from Alexander county to Davie county. Another storm produced a tornado that tracked from western Caldwell county into south-central Alexander county. A third supercell that emerged out of the mountains in McDowell county produced several tornadoes from the southern part of that county to northern Mecklenburg county. Damage was fairly significant across western North Carolina with numerous homes either damaged or destroyed. Fortunately, no one was killed. However, 2 people were injured as a result of the violent F4 tornado in eastern Caldwell county. One person received minor injuries from a lightning strike in Yancey county later in the evening. The storms continued to reform in eastern Tennessee until very late in the evening and still produced large hail as they crossed the border into the mountain counties of North Carolina, before weakening shortly after midnight.. | |||||||||||
| 45.1 | 1951-08-09 | 2 | 35°45'N / 81°20'W | 0.50 Mile | 100 Yards | 0 | 0 | 25K | 0 | Catawba | |
| 46.7 | 1967-04-22 | 2 | 36°12'N / 82°41'W | 0.20 Mile | 250 Yards | 0 | 0 | 250K | 0 | Greene | |
| 47.3 | 2009-05-08 | 2 | 36°56'N / 81°57'W | 1.00 Mile | 250 Yards | 0 | 0 | 0K | 0K | Russell | |
| Brief Description: EVENT NARRATIVE: A tornado touched down about eight miles east-northeast of Lebanon, Virginia with maximum wind speeds of 125 miles an hour. The path length was 1.1 mile and maximum width was 250 yards. Approximately 100 trees were snapped and uprooted along the tornado path. In addition...a well constructed wooden barn was completely destroyed and while a home incurred moderate damage. EPISODE NARRATIVE: A highly organized mesoscale convective vorticity maximum with strong low to mid tropospheric flow coupled with moderate instability resulted in the development of discrete supercellular thunderstorms. These storms produced a long-lived tornado across Northeast Tennessee late in the afternoon and another long duration tornado across Southwest Virginia later in the evening. | |||||||||||
| 47.9 | 2005-07-07 | 2 | 35°50'N / 81°10'W | 35°52'N / 81°08'W | 4.00 Miles | 100 Yards | 0 | 0 | 150K | 0 | Alexander |
| Brief Description: This tornado touched down near highway 16 just north of the Catawba County line. Two brick homes and a business received severe roof damage in this area, while a mobile home was completely destroyed. The tornado tracked northeast, damaging the roofs of several homes at a mobile home park along Friendship Church Rd before lifting near the intersection of Millersville Rd and Dairy Rd. Numerous trees were also blown down along the tornado path. | |||||||||||
| 48.7 | 1989-05-05 | 4 | 35°35'N / 81°27'W | 35°41'N / 81°25'W | 6.00 Miles | 800 Yards | 0 | 3 | 25.0M | 0 | Catawba |
* 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.