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Grafton Public School District 3 Natural Disasters and Weather Extremes

 
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The chance of earthquake damage in Grafton Public School District 3 is about the same as North Dakota average and is much lower than the national average. The risk of tornado damage in Grafton Public School District 3 is higher than North Dakota average and is lower than the national average.

Topics:Earthquake IndexVolcano IndexTornado IndexOther Weather Extremes EventsVolcanos NearbyHistorical Earthquake EventsHistorical Tornado Events

Earthquake Index, #91

Grafton Public School District 3
0.00
North Dakota
0.00
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

Grafton Public School District 3
0.0000
North Dakota
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, #40

Grafton Public School District 3
105.89
North Dakota
81.79
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 1,915 other weather extremes events within 50 miles of Grafton Public School District 3 were recorded from 1950 to 2010. The following is a break down of these events:

TypeCountTypeCountTypeCountTypeCountTypeCount
Avalanche:0Blizzard:58Cold:42Dense Fog:0Drought:5
Dust Storm:0Flood:155Hail:914Heat:1Heavy Snow:28
High Surf:0Hurricane:0Ice Storm:7Landslide:0Strong Wind:54
Thunderstorm Winds:530Tropical Storm:0Wildfire:3Winter Storm:59Winter Weather:3
Other:56 

Volcanos Nearby

No volcano is found in or near Grafton Public School District 3.

Historical Earthquake Events

No historical earthquake events that had recorded magnitudes of 3.5 or above found in or near Grafton Public School District 3.

No historical earthquake events found in or near Grafton Public School District 3.

Historical Tornado Events

A total of 25 historical tornado events that had recorded magnitude of 2 or above found in or near Grafton Public School District 3.

Distance (miles)DateMagnitudeStart Lat/LogEnd Lat/LogLengthWidthFatalitiesInjuriesProperty DamageCrop DamageAffected County
21.01999-07-14248°12'N / 97°08'W48°11'N / 97°06'W2.00 Miles150 Yards00100K0Marshall
 Brief Description: The tornado lifted the roof off a warehouse, depositing it nearly 2 miles away to the southeast. A 6-ton truck was also pushed nearly 150 yards.
23.91999-06-06448°36'N / 97°47'W48°41'N / 97°51'W8.00 Miles500 Yards001.0M0Pembina
 Brief Description: A tornado touched down southeast of Mountain, where it damaged several farmsteads. One farm home was completely lifted up and tossed 100 yards. A combine was also picked up and thrown several hundred feet. A swather was picked up and wrapped around several trees. In the town of Mountain, numerous trees were knocked flat. 2 mobile homes were destroyed, the roof was torn off a house, and a garage was destroyed.
25.31955-06-30248°05'N / 97°10'W48°08'N / 97°06'W4.10 Miles77 Yards003K0Grand Forks
26.61977-07-13248°06'N / 97°06'W1.00 Mile100 Yards0025K0Polk
27.61999-06-06248°16'N / 98°00'W48°21'N / 97°58'W3.00 Miles130 Yards0015K0Walsh
 Brief Description: Several large trees were snapped off and light poles were bent over. Several metal grain bins were blown off their concrete foundations and thrown 200 feet. An old shed was also tossed 150 feet.
32.52010-06-17247°54'N / 97°18'W48°01'N / 97°21'W7.00 Miles100 Yards000K0KGrand Forks
 Brief Description: EVENT NARRATIVE: The tornado tracked northward intermittently for about 7 miles. A pole barn and several farm outbuildings were destroyed. Large trees were snapped or uprooted. Debris was thrown near Emerado and just east of the Grand Forks Air Force Base. Peak winds were estimated at 120 mph. EPISODE NARRATIVE: Conditions were ripe by the afternoon of the 17th for a major severe weather outbreak. A surface low had moved into east central North Dakota with an occluded front extending to the southeast. Warm and humid air was in place ahead of the front, with a much drier airmass pushing in behind it. The 500mb low was located over northwest North Dakota with a nice southwest to northeast upper jet pushing into eastern North Dakota. Two lines of convection formed by late afternoon, one from Roseau County down toward Eastern Otter Tail County and the other over east central North Dakota. Nearly all the cells that formed took on a classic hook shape with rotation very evident on radar imagery. Multiple tornado warnings were issued before the event wound down by mid evening. The strongest tornadoes were determined to be EF4 tornadoes, two in west central Minnesota and one in northeast North Dakota.
33.31999-06-06248°13'N / 98°04'W48°14'N / 98°04'W3.00 Miles150 Yards00250K0Walsh
 Brief Description: A 54x108 foot building and a shed were destroyed by the tornado. One tractor inside was moved and the building doors were wrapped around the cab. Shingles from the barn were impaled in the swather. Some of the farm equipment was overturned and some boards were driven into the ground. Debris was picked up and tossed in a nearby slough.
33.52005-07-02248°51'N / 97°07'W48°52'N / 97°02'W4.00 Miles200 Yards0000Kittson
 Brief Description: This tornado moved east-northeast along a 4 mile curved path and damaged several grain bins, uprooted numerous trees, and demolished portions of a barn 4 miles west of Northcote. Peak winds were estimated at 130 mph.
35.92005-07-02248°53'N / 97°05'W48°55'N / 97°05'W1.50 Miles200 Yards0000Kittson
 Brief Description: The tornado snapped off 2 power poles and tore 2 steel grain bins from their foundations. The steel debris was carried over one mile downwind. Peak winds were estimated at 120 mph.
36.91952-07-09247°55'N / 97°10'W003K0Grand Forks
36.92005-07-02248°55'N / 97°04'W48°54'N / 97°03'W1.50 Miles200 Yards0000Kittson
 Brief Description: The tornado demolished 3 large grain bins, tore the doors off a large steel building, and blew down a small radio tower. Peak winds were estimated at 140 mph.
37.02004-05-19248°55'N / 97°44'W48°55'N / 97°44'W0.70 Mile150 Yards0000Pembina
 Brief Description: Four trailer homes were blown over and a repair shop had extensive roof damage. Trees and power lines were blown down, interrupting electrical service. Two houses were also damaged. Most people in the trailer homes drove away prior to the tornado, having been alerted to the impending danger.
37.32004-05-19348°55'N / 97°05'W48°55'N / 97°03'W1.50 Miles150 Yards00200K0Kittson
 Brief Description: The tornado demolished 4 structures. One of the structures, a 30x40 foot machine shed, was swept from its foundation and thrown into the adjacent fields. Tools from the shed were driven into the banks of a nearby highway. Other debris was spread over a mile away. Many trees were torn up.
37.61958-08-11347°54'N / 97°12'W0225K0Grand Forks
37.61978-05-26248°55'N / 97°03'W0.50 Mile20 Yards00250K0Grand Forks
40.52005-07-02248°56'N / 97°00'W48°57'N / 96°58'W2.00 Miles200 Yards0000Kittson
 Brief Description: Twin vortices merged to form one tornado, which tracked for two miles. The tornado demolished two steel grain bins and blew the debris one-half mile downwind. Peak winds were estimated at 130 mph.
40.91955-06-30247°54'N / 97°00'W0725K0Polk
41.82005-06-23248°56'N / 96°56'W48°57'N / 96°55'W1.00 Mile200 Yards0000Kittson
 Brief Description: A brief touchdown occurred in Orleans. The tornado destroyed six large grain bins at the elevator and one small storage shed. Peak winds were estimated at 120 mph.
45.11985-06-24248°47'N / 98°14'W0.50 Mile400 Yards00250K0Cavalier
46.11977-07-13248°01'N / 96°37'W2.00 Miles120 Yards0225K0Polk
46.32007-08-26347°49'N / 97°52'W47°50'N / 97°50'W1.00 Mile580 Yards000K0KGrand Forks
 Brief Description: EVENT NARRATIVE: This tornado began about 6 miles north-northeast of Aneta in eastern Nelson County at 704 pm CST. The total tornado track was about 6 miles, with about 1 mile of it occurring in Grand Forks County. The tornado lofted and destroyed a second combine in Grand Forks County before it lifted. Peak winds were estimated at 150 mph. EPISODE NARRATIVE: A cold front moved across North Dakota on the 26th, with a hot and humid airmass in place ahead of the front. At 6 pm CST, a surface low was located over southern Manitoba (Canada), just north of Pembina, ND. The cold front stretched to the southwest, back toward Devils Lake (ND) and Bismarck (ND). Ahead of the cold front, temperatures ranged in the low to mid 80s with dew points around 70F. Behind the front, temperatures did not cool significantly, but dew points dropped to the mid 40s. Thunderstorms began to form along and ahead of the cold front by early evening (from northeast ND into south central ND), eventually crossing into northwest Minnesota several hours later. Eight distinct tornadoes occurred over northeast North Dakota and northwest Minnesota during this event.
47.62005-06-23247°50'N / 96°55'W47°49'N / 96°53'W2.00 Miles200 Yards0000Polk
 Brief Description: Well-built garage walls and a roof were torn off a home. Steel grain bins were ripped off their foundations and thrown through the air. A 36x100 foot hip-roofed barn was torn from its foundation and demolished. Peak winds were estimated at 150 mph.
48.92007-08-26447°43'N / 97°36'W47°44'N / 97°31'W5.00 Miles1400 Yards11850.0M2.0MGrand Forks
 Brief Description: EVENT NARRATIVE: The tornado touched down about 2 miles west-southwest of Northwood. The tornado crossed the Goose River about a mile west-southwest of the Northwood airport and left a 200 yard wide stretch of downed trees in its wake. By the time it hit the airport, the ground track was one-third of a mile wide and growing wider. At this point the tornado was still visible outside the increasingly heavy rain. The tornado reached an incredible width of eight-tenths of a mile as it pushed through Northwood to the east-northeast. At this point it had multiple vortices embedded in the overall wedge shaped tornado. The strongest of these vortices appears to have scoured the ground and left broad circulation patterns of debris in the overall damage and debris field. Around this time the tornado likely became wrapped in heavy rain and would have been difficult to observe from a distance. The most extreme damage appeared to be in the northeast corner of the community. Northwood, in southwest Grand Forks County, had a population of about 1000 people. 90 percent of the roughly 460 homes were damaged. One death occurred in a mobile home, with 18 other injuries reported. The death occurred in a trailer park on the north edge of town, where 19 total units were demolished. Just to the east of the trailer park, in the area that sustained the extreme damage, three businesses were hit particularly hard. An agricultural company, the towns largest employer, had its buildings heavily damaged. A nearby construction company lost two large steel buildings and other equipment. Steel beams from the two steel buildings were twisted and tossed nearby. Finally, a car dealership lost 15 to 20 vehicles from its parking lot along highway 15. Many of these vehicles were damaged beyond recognition and tossed into nearby fields. One corn field to the north of highway 15 (across from the 3 businesses on the northeast side of town) had it stalks snapped off several inches from the root bases, with pieces of husked corn laying around. Hangers and airplanes were also damaged at the airport. The local health center, school, supermarket, and grain elevator were damaged. Near the elevator, several rail cars were knocked off the tracks. Hundreds of trees were snapped, uprooted, or damaged. Power was also knocked out to many customers, but eventually was turned off (for safety reasons) to the entire town. A total of about 2600 truckloads of debris were hauled to the town landfill. In the days following the tornado, a Presidential Disaster Declaration was granted. EPISODE NARRATIVE: A cold front moved across North Dakota on the 26th, with a hot and humid airmass in place ahead of the front. At 6 pm CST, a surface low was located over southern Manitoba (Canada), just north of Pembina, ND. The cold front stretched to the southwest, back toward Devils Lake (ND) and Bismarck (ND). Ahead of the cold front, temperatures ranged in the low to mid 80s with dew points around 70F. Behind the front, temperatures did not cool significantly, but dew points dropped to the mid 40s. Thunderstorms began to form along and ahead of the cold front by early evening (from northeast ND into south central ND), eventually crossing into northwest Minnesota several hours later. Eight distinct tornadoes occurred over northeast North Dakota and northwest Minnesota during this event.
49.22010-06-17447°40'N / 97°19'W47°46'N / 97°19'W8.00 Miles150 Yards000K0KGrand Forks
 Brief Description: EVENT NARRATIVE: This tornado began in Traill County about 3 miles north-northeast of Mayville at 349 PM CDT. The tornado crossed into Grand Forks County and tracked for an additional 8 miles to about 10 miles west of Thompson. The total track length was roughly 17 miles. One well constructed house near Holmes was completely swept from its foundation and destroyed along with several other farm buildings. Peak winds were estimated at 185 mph. EPISODE NARRATIVE: Conditions were ripe by the afternoon of the 17th for a major severe weather outbreak. A surface low had moved into east central North Dakota with an occluded front extending to the southeast. Warm and humid air was in place ahead of the front, with a much drier airmass pushing in behind it. The 500mb low was located over northwest North Dakota with a nice southwest to northeast upper jet pushing into eastern North Dakota. Two lines of convection formed by late afternoon, one from Roseau County down toward Eastern Otter Tail County and the other over east central North Dakota. Nearly all the cells that formed took on a classic hook shape with rotation very evident on radar imagery. Multiple tornado warnings were issued before the event wound down by mid evening. The strongest tornadoes were determined to be EF4 tornadoes, two in west central Minnesota and one in northeast North Dakota.
49.92007-08-26347°45'N / 97°55'W47°49'N / 97°53'W5.00 Miles580 Yards000K0KNelson
 Brief Description: EVENT NARRATIVE: This tornado continued into western Grand Forks County, where it dissipated 3 miles west-northwest of Logan Center at 716 pm CST. The total tornado track was about 6 miles long, with about 5 miles of this total occurring in Nelson County. The tornado destroyed a garage and farm outbuildings at 3 farmsteads. It killed 5 buffalo and completely dismantled a swathing combine. Trees were also snapped off or uprooted along the damage path and several empty metal grain bins were torn from their anchors and demolished. Gravel roads were deeply scarred by debris. Peak winds were estimated at 150 mph. EPISODE NARRATIVE: A cold front moved across North Dakota on the 26th, with a hot and humid airmass in place ahead of the front. At 6 pm CST, a surface low was located over southern Manitoba (Canada), just north of Pembina, ND. The cold front stretched to the southwest, back toward Devils Lake (ND) and Bismarck (ND). Ahead of the cold front, temperatures ranged in the low to mid 80s with dew points around 70F. Behind the front, temperatures did not cool significantly, but dew points dropped to the mid 40s. Thunderstorms began to form along and ahead of the cold front by early evening (from northeast ND into south central ND), eventually crossing into northwest Minnesota several hours later. Eight distinct tornadoes occurred over northeast North Dakota and northwest Minnesota during this event.


* 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.


 
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