1998: A derecho which originated in far southeast South Dakota moved across Illinois during the afternoon and evening and continued as far east as Ohio the next morning. Every county in central Illinois sustained some damage, as these severe thunderstorms passed. Winds gusted in the 60 to 80 mph range, with some localized microbursts producing winds more than 100 mph. Significant damage occurred in the microburst areas, including the towns of Morton, McLean, LeRoy, and Tolono. In Tolono, 22 cars of a southbound 101-car Illinois Central freight train were blown off the tracks. It was unknown how many cars were picked up by the wind, but 16 cars were turned over, and another six derailed but remained upright. The train was en route to Centralia from Chicago with a load of mixed freight, including plastic pellets and meal. The freight cars empty weighed about 60,000 pounds, while a full one weighs about 260,000 pounds. Overall, 12 people were injured, and damage was estimated around $16 million dollars.
1995: The Madison County Flood on June 27, 1995, was the worst flash floods Virginia had seen since the remnants of Camille dropped up to 30 inches of rain one night in Nelson County in August 1969. The Nelson County flood ranked as one of the nation’s worst flash floods of the century and resulted in the deaths of 117 people. The Madison County flood of 1995 killed one person.
2011: Polar temperatures and unusual snowfall chill several cities in Brazil’s southern states. Four cities in Santa Catarina state are blanketed in snow. The city of Urubici reported a temperature of 23.9 degrees Fahrenheit with a wind chill of 16.6 degrees below zero. In Florianopolis, the capital of Santa Catarina and a renowned sea resort, thermometers registered 21.2 degrees.
1807: Lightning strikes a gunpowder factory in the small European country of Luxembourg, killing more than 300 people. The Luxembourg disaster may have been the most deadly lightning strike in history.
1957: Hurricane Audrey moved northward, slowly strengthening until the 26th. At that time, a strong upper-level trough led to its acceleration and the hurricane deepened rapidly on its final approach to the Texas/Louisiana border. Audrey became the strongest hurricane on record for the month of June upon landfall, as it reached category four strength. Its acceleration was unanticipated, and despite hurricane warnings in place, 418 people perished in the storm, mainly across southwest Louisiana.
1967: Three, F3 tornadoes crossed the Netherlands on this day. The first tornado touched down at 4:17 PM in Oostmalle. This storm destroyed the church and the center of the village. More than half of the 900 homes in the community were damaged with 135 completely gone. The second tornado touched down near Ulicoten and tracked northward through woodlands area. This storm killed two people at a camping site near Chaam, Netherlands. The third tornado destroyed 50 houses in Tricht, killing five and injuring 32 others.
1975: An Eastern Airlines Boeing 727 crashed at JFK airport in New York City. 113 of the 124 people on board the aircraft died. Researcher Theodore Fujita studied the incident and discovered that a microburst caused the crash. His research led to improved air safety. The tower never experienced the microburst, which was held back by a sea-breeze front. The plane crashed 2,400 feet short of the runway.
2003: An F4 tornado destroyed or heavily damaged all buildings, other structures, and vehicles in the small town of Manchester, in Kingsbury County. Many homes were stripped to the foundation. Of the six residents of the town, four were injured and were transported to hospitals. Three were deemed to be severely injured, but none of the injuries were listed as life-threatening. Throughout the path, the tornado was observed to have multiple vortices. The tornado was seen and videotaped by many storm chasers and researchers. Researchers also deployed weather sensors around the town of Manchester. One of these sensors recorded a 100 millibar pressure drop as the tornado passed. This tornado was part of a larger outbreak in eastern South Dakota, which experienced a record 67 tornadoes within an eight-hour time frame.
1944: The deadliest and strongest tornado for the state of West Virginia occurred on this day. The Shinnston Tornado that ravaged a path of destruction from Shinnston to Cheat Mountain, then on to Maryland and ending in Pennsylvania in the Allegheny Mountains, is the only twister to produce F4 damage in West Virginia. This tornado killed 103 people.
2002: A powerful supercell thunderstorm produced six tornadoes from eastern McPherson County and across northern Brown County in South Dakota during the evening hours. The fifth tornado developed 5 miles southeast of Barnard and became a violent F4 tornado. This tornado caused damage to one farmhouse, several outbuildings, trees, and equipment as it moved northeast and strengthened.
1919: The second deadliest tornado in Minnesota’s history occurred on this day. 59 people were killed as an estimated F5 tornado ripped through the town of Fergus Falls, Minnesota. 400 buildings were destroyed. A blank check was found over 60 miles away, and lumber was carried 10 miles. Of the 59 victims, 35 were guests of the Grand Hotel.
1928: A farmer near Greensburg, KS looked up into the heart of a tornado. He described its walls as “rotating clouds lit with constant flashes of lightning and a strong gassy odor with a screaming, hissing sound.”
2003: A hailstone measuring 7.0 inches in diameter with a circumference of 18.75 inches and weighing 1.33 pounds falls in Aurora, Nebraska. The National Weather Service reports this is the second largest hailstone ever documented in the U.S. by weight, and the largest by size at that time. The world’s largest hailstone NOW was produced from storms in South Dakota; 8″ in diameter and 1.9375 lbs. on July 23, 2010.
2007: The first officially documented F5 tornado in Canada struck the town of Elie, Manitoba population 500 people. Video of the storm showed a heavy van being whirled through the air. The storm also tossed an almost entire house several hundred yards through the air before it disintegrated. The tornado traveled across the landscape for about 35 minutes covering 3.4 miles and leaving a damage path 984 feet wide. Wind speeds in the tornado were later estimated at 260-316 mph. Fortunately, no fatalities or serious injuries were reported.
1902: Light to heavy frost occurred over most of South Dakota with low temperatures ranging from the mid-20s to the lower 30s.
1987: A tornado destroyed 57 mobile homes at the Chateau Estates trailer park northwest of Detroit, Michigan killing one person and injuring six others. Total damage was estimated at 1.7 million dollars. Thunderstorms over Lower Michigan also drenched the Saginaw Valley with up to 4.5 inches of rain in less than six hours.
1988: The first full day of summer was a hot one, with afternoon highs of 100 degrees or above reported from the Northern and Central Plains to the Ohio Valley. Sixty-nine cities in the north central U.S. reported record high temperatures for the date. The high of 110 degrees at Sioux Falls, SD was an all-time record for that location.
1957: An F5 tornado cut a swath through Fargo, North Dakota killing 10 and injuring at least 103 people. This tornado was the northernmost confirmed F5 tornado until the Elie, Manitoba tornado on June 22, 2007.
1989: A meteorological “hot flash” hit Pierre, South Dakota. Descending air from collapsing thunderstorms caused the temperature in Pierre to warm from 86 degrees at midnight to 96 at one a.m. and to 104 at 2 a.m. Pierre’s record high for the date of 105 degrees in 1974.
1970: Nesbyen, Norway reached 96 degrees on this day, becoming the warmest temperature recorded in Norway.
2001: Large hail driven by strong thunderstorm winds raked Denver International and front-range airports. Wind gusting to 54 mph along with hail as large 2 inches in diameter punched at least 14 thousand holes and cracks in the flat roofs of several buildings at Denver International Airport. Also, 93 planes and hundreds of cars were damaged. About 100 flights had to be canceled stranding 1500 travelers. The Airport was completely shut down for about 20 minutes. The storm also damaged ground avoidance radar used to track planes on the ground to prevent collisions. Damage was estimated at 10 million dollars not counting the damage to the 93 airliners. The storm moved south and struck Watkins Colorado with hail as large as 2 1/2 inches in diameter and winds gusting to 60 mph.