Showing posts with label Missouri. Show all posts
Showing posts with label Missouri. Show all posts

Monday, 18 August 2025

Fireball over Arkansas and Missouri.

Witnesses across Arkansas, Iowa, Illinois, Indiana, Kentucky, Louisiana, Mississippi, Missouri, Oklahoman Tennessee, and Texas have reported observing a bright fireball meteor slightly after 1.30 am local time (slightly after 6.30 am GMT) on Sunday 17 August 2025. The fireball is described as having moved from southeast to northwest, appearing to the northwest of Walnut Ridge and disappearing close to Reeds Spring. A fireball is defined as a meteor (shooting star) brighter than the planet Venus. These are typically caused by pieces of rock burning up in the atmosphere, but can be the result of man-made space-junk burning up on re-entry.

The 17 August 2025 fireball meteor seen from Waxahachie, Texas. Garrett Griffen/American Meteor Society

Objects of this size probably enter the Earth's atmosphere several times a year, though unless they do so over populated areas they are unlikely to be noticed. They are officially described as fireballs if they produce a light brighter than the planet Venus. The brightness of a meteor is caused by friction with the Earth's atmosphere, which is typically far greater than that caused by simple falling, due to the initial trajectory of the object. Such objects typically eventually explode in an airburst called by the friction, causing them to vanish as a luminous object. However, this is not the end of the story as such explosions result in the production of a number of smaller objects, which fall to the ground under the influence of gravity (which does not cause the luminescence associated with friction-induced heating).

Heat map showing areas where sightings of the meteor were reported (warmer colours indicate more sightings), and the apparent path of the object (blue arrow). American Meteor Society.

These 'dark objects' do not continue along the path of the original bolide, but neither do they fall directly to the ground, but rather follow a course determined by the atmospheric currents (winds) through which the objects pass. Scientists are able to calculate potential trajectories for hypothetical dark objects derived from meteors using data from weather monitoring services.

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Saturday, 21 July 2018

Seventeen dead after pleasure boat sinks on Missouri lake during storm.

Seventeen people, including eleven members of one family, have died after a pleasure vessel sank on a Missouri lake on Table Rock Lake in Stone County, Missouri, on Thursday 19 July 2018. The vessel, described as an amphibous duck boat, reportedly got into trouble after a thundestorm struck, leading to a rapid deteriation of conditions. The victims are described as having been between 1 and 76 years in age.

A duck boat carrying tourists on Table Rock Lake in Missouri, shortly before sinking on 19 July 2018. Ron Folsom/Reuters.

Duck boats are amphiboius vehicles similar to those used in the Normandy landings during the Second World War. They are widely used as pleasure vehicles on inland waterways in parts of the US, but questions have been repeatedly raised about their suitability for such a role, as they do not cope well with rough weather conditions. The vehicle that sank on 19 July was reportedly carrying 31 people when it went down, and is known to have had life jackets on board, but it is unclear whether they were issued to passengers or whether passengers were waring them if they were. An investigation into the event is being led by the US Coastguard.

Thunderstorms are caused by heating of the land or water surface by the sun, causing air to expand, and thus rise, this causes more air to be drawn in to fill the gap, which is in turn heated and rises, repeating the process and creating a cycle. As the air rises it expands, and therefore cools, losing its capacity to retain water, leading to precipitation (rainfall), with higher levels of rainfall occurring when the initial air mass is warmer and more humid.

See also...

https://sciencythoughts.blogspot.com/2018/07/flash-flood-kills-radio-presenter-in.htmlhttps://sciencythoughts.blogspot.com/2018/06/train-derailment-leads-to-major-oil.html
https://sciencythoughts.blogspot.com/2018/06/arkansas-kayaker-killed-when-sinkhole.htmlhttps://sciencythoughts.blogspot.com/2018/04/oklahoma-man-killed-by-wildfire.html
https://sciencythoughts.blogspot.com/2018/04/tornado-injures-four-in-mountainburg.htmlhttps://sciencythoughts.blogspot.com/2017/09/iowa-woman-dies-from-west-nile-virus.html
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Saturday, 1 July 2017

Sinkhole swallows car in St Loius, Missouri.

A driver returning to his car after visiting a gym in the Downtown area of St Louis, Missouri on Thursday 29 June 2017 was shocked to discover the vehicle had been swallowed by a sinkhole measuring six meters across and about seven meters deep. Nobody was hurt in the incident, but it is unclear at this time whether the vehicle will be salvageable.

Vehicle trapped in a sinkhole in St Louis, Missouri, on Thursday 29 June 2017. Christian Gooden/St. Louis Post-Dispatch.

Sinkholes are generally caused by water eroding soft limestone or unconsolidated deposits from beneath, causing a hole that works its way upwards and eventually opening spectacularly at the surface. Where there are unconsolidated deposits at the surface they can infill from the sides, apparently swallowing objects at the surface, including people, without trace.

However in this occasion the sinkhole is believed to have been caused by a ruptured water main, which washed away unconsolidated sediments beneath the road, creating a void into which the vehicle collapsed.

See also...

http://sciencythoughts.blogspot.co.uk/2015/12/stroms-and-floods-kill-at-least-43.html
http://sciencythoughts.blogspot.co.uk/2017/03/hundreds-of-homes-damage-as-storms.html

http://sciencythoughts.blogspot.co.uk/2015/05/giant-sinkholes-appear-at-missouri-golf.html
http://sciencythoughts.blogspot.co.uk/2015/10/magnitude-34-earthquake-in-ripley.html
http://sciencythoughts.blogspot.co.uk/2014/07/magnitude-28-earthquake-in-dunklin.html
http://sciencythoughts.blogspot.co.uk/2015/04/magnitude-36-earthquake-in-pemiscot.html

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Wednesday, 8 March 2017

Hundreds of homes damaged as storms sweep across America's Midwest.

Hundreds of homes have been destroyed an a number of people have been injured as series of storms swept across the American Midwest on Monday 6 March 2017. The worst of the damage occurred around Oak Grove on the border between Jackson and Lafayette counties in Missouri where about 500 homes and commercial buildings were damaged or destroyed by a tornado that reached three on the Enhanced Fujita scale (or an EF-3 tornado), with winds peaking at 245 km per hour. 

The aftermath of the 6 March 2017 Oak Grove tornado outbreak. Kansas City News and Weather.

Elsewhere in Missouri between fifty and sixty homes were damaged or destroyed by an EF-2 tornado with peak winds of over 210 kilometres per hour in Smithville. 46 homes were damaged in the Kansas City suburb of Leaward, while twelve aircraft hangers were damaged and one destroyed at Johnson County Executive Airport. Two people were injured and a number of properties were damaged after an EF-1 tornado with winds of 140-175 kilometres per hour hit Wentzville. A water treatment plant was damaged in Odessa and tornadoes were also reported in Lee's Summit and Macks Creek.

 Overtuned mobile home in Wentzville, Missouri following the 7 March 2017 tornado outbreak. Robert Cohen/St Louis Post-Dispatch.

In Iowa an EF-2 tornado with winds peaking at 185 kilometres per hour hit the city of Muscatine leaving a trail of destruction 200 m wide and over three kilometres in length, with three people injured and over eighty homes damaged. A second tornado hit the city of Blue Grass, though this caused only minor damage. Tornadoes were also reported in Minnesota, the earliest in the year ever reported in the state, as well as in Kansas and Illinois, while major thunderstorms were reported in Louisiana, Mississippi and Alabama.

 Damage in Seymour, Iowa, following the 7 March 2017 tornado outbreak. Daily Iowegian.

Tornadoes are formed by winds within large thunder storms called super cells. Supercells are large masses of warm water-laden air formed by hot weather over the sea, when they encounter winds at high altitudes the air within them begins to rotate. The air pressure will drop within these zones of rotation, causing the air within them so rise, sucking the air beneath them up into the storm, this creates a zone of rotating rising air that appears to extend downwards as it grows; when it hits the ground it is called a tornado. 

Tornadoes can occur anywhere in the world, but are most common, and most severe, in the area of the American mid-west known as 'Tornado Ally', running from Texas to Minnisota, which is fuelled by moist air currents from over the warm enclosed waters of the Gulf of Mexico interacting with cool fast moving jet stream winds from the Rocky Mountains. Many climatologists are concerned that rising temperatures over the Gulf of Mexico will lead to more frequent and more severe tornado events.

Simplified diagram of the air currents that contribute to tornado formation in Tornado Alley. Dan Craggs/Wikimedia Commons/NOAA.

See also...

http://sciencythoughts.blogspot.co.uk/2015/12/stroms-and-floods-kill-at-least-43.htmlhttp://sciencythoughts.blogspot.co.uk/2015/06/severe-damage-to-homes-and-businesses.html
http://sciencythoughts.blogspot.co.uk/2015/03/oklahoma-tornadoes-kill-one-injure.htmlhttp://sciencythoughts.blogspot.co.uk/2014/06/texas-house-carried-100-m-by-tornado.html
http://sciencythoughts.blogspot.co.uk/2014/05/six-injured-as-tornado-hits-north.htmlhttp://sciencythoughts.blogspot.co.uk/2014/05/missouri-town-hit-by-tornado.html
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Tuesday, 29 December 2015

Storms and floods kill at least 43 people in the US over Christmas period.

AT least 43 people have died across the southern and midwest United States over the past week as the country has been hit by a series of severe floods and storm events. Multiple deaths have been recorded in Texas, Missouri, Mississippi, Tennessee and Illinois, and severe storm and flood damage in New Mexico, Louisiana, Arkansas, Oklahoma and Alabama.

The remains of a home destroyed by storms in Roundaway, Mississippi, on 23 December 2015. Troy Catchings/The Press Register/AP.

The highest death toll has been recorded in Texas where a series of nine tornadoes touched down to the northeast of Dallas on Saturday 26 December, damaging or destroying around 140 homes, as well as toppling trees and power lines and killing at least eleven people. The worst affected area was the community of Garland in Dallas County, where around 600 homes have been destroyed, at least eight people have died, three of them in vehicles thrown from in interstate highway, and at least fiftenn more have been injured. Twenty three people have been reported in the town of Rowlett, also in Dallas County. Three further deaths have been reported in Collin County. In addition heavy snowfall has been reported across much of the north of the state, with snow in excess of 50 cm deep closing many roads and cutting off smaller communities.

Homes destroyed by a tornado in Garland, Texas on 26 December 2015. NBC.

In Missouri six people have died in two separate incidents involving vehicles on flooded roads in the southern art of the state, four soldiers from another country stationed at Fort Leonard Wood for training who died in Pulaski County and two other people in Green County. Two other deaths have been reported from the state, and several more people are missing, though details of these are not yet clear, and many people have been evacuated from homes in low-lying areas.

Flooding in Kendricktown Missouri on Sunday 27 December 2015. AP.

In Mississippi ten people including a seven-year-old boy died in a series of tornadoes that swept across the northern part of the state on Wednesday 23 December. In the worst event a single tornado stayed on the ground for over 200 km, leaving a trail of destruction across six counties, and killing four people in the small community of Holly Springs in Marshall County.

A tornado that touched down near Clarksdale, Mississippi, on 23 December 2015. Mike Prendergast/TV Weatheroom.

In Tenassee at least six people died in storms on Wednesday 23 December including three teenagers found dead in a car submerged in a creek Maurey County. Further deaths have been reported in Perry County, where an elderly couple were blown off a road in their car and in Rhea County where a 22-year-old man died when his car was caught in a flash flood. This has been followed by a drop in temperature that has brought ice storms, sleet, snow and freezing rain to areas where many people have lost their homes and many more have damaged homes and/or have lost electricity supplies.

Storm damage near Linden, Tennessee, following the 23 December storms. Mark Humphrey/AP.

Illinois was hit by a series of blizzards and flash floods on Saturday 26 December, and five people including two children are reported to have died when their car was caught in a flash flood in Marrion County. Flood warnings remain in place across much of the south of the state, particularly close to the Mississippi River, with evacuations being carried out in some low-lying areas.

Flooding in the LaRue Pine Hills in southern Illinois. Nathan Speagle/The Southern Illinoisan.

Eastern New Mexico has been hot by severe winter storms with more than 50 cm of snow falling in places and drifts in excess of 3 m. At least one person has died of hypothermia in Albuquerque and around 10 000 homes have been left without electricity due to downed power lines. A large number of vehicle accidents have been reported as drivers struggle to cope with unfamiliar conditions.

A road traffic accident to the south of Albuquerque in New Mexico on Saturday 26 December 2015. Roberto Rosales/The Albuquerque Journal/AP.

In Louisiana high winds and tornadoes have damaged and destroyed homes across large areas of the state, as well as toppling many trees, which have blocked roads and brought down power lines; about 19 000 homes were without power on the morning of Monday 28 December. The state is on high alert from expected flooding, with a number of levees already reported to be under strain.

Damage caused by a tornado in Rapides Parish, Louisiana on Monday 28 December 2015. KALB.

In Arkansas a woman was killed when a tree was blown onto her house on Wednesday 23 December and a man has died in a flooding in Pope County on Monday 28 December, after his car was washed off a road in a flash flood, and several other people have been reported missing. Flooding has been reported across much of the northeast of the state, while tornadoes have been reported in Ouachita, Calhoun and Lee counties.

Storm damage caused by high winds in Sharp County, Arkansas, on 23 December 2015. Brenda Harris/TVH11.

In Oklahoma two people are known to have died in flooding on Monday 28 December, and at least one more is missing; a third death in the state is being attributed to hypothermia. About 50 people have been admitted to hospitals with storm-related injuries. High winds, heavy rainfall and snow have brought disruption to much of the state, with About 200 000 people being left without electricity, and several cases of carbon monoxide poisoning have been reported as people without electricity have tried to warm their homes with little-used fireplaces, only to find that ventilation has been blocked. 

Flooding in Tulsa, Oklahoma, on 28 December 2015. Mike Simons/Tulsa World/AP.

In Alabama heavy rain began to fall on Christmas Day bringing flooding to the Birmingham area, and has continued for much of the following week, leading to flooding across much of the state. Three people are known to have died, two in Coffee County and one in New Hope. Flooding has forced many people from their homes, and a series of tornadoes has caused further problems in the Birmingham area.

Flooding at Harvest in Madison County, Alabama. Penny Bright/AL.com.

The storms and flooding has been widely linked to the El Niño weather system currently affecting the Pacific Ocean, a phenomenon that typically brings high levels of rainfall to the southwest United States, starting around the beginning of December, although this year the area has been suffering floods since the middle of October. 

 Predicted changes to North American weather patterns during an El Niño event. NWS/NCEP Climate Prediction Center/NOAA.

The El Niño is the warm phase of a long-term climatic oscillation affecting the southern Pacific, which can influence the climate around the world. The onset of El Niño conditions is marked by a sharp rise in temperature and pressure over the southern Indian Ocean, which then moves eastward over the southern Pacific. This pulls rainfall with it, leading to higher rainfall over the Pacific and lower rainfall over South Asia. This reduced rainfall during the already hot and dry summer leads to soaring temperatures in southern Asia, followed by a rise in rainfall that often causes flooding in the Americas and sometimes Africa. Worryingly climatic predictions for the next century suggest that global warming could lead to more frequent and severe El Niño conditions, extreme weather conditions a common occurrence.

See also...

http://sciencythoughts.blogspot.co.uk/2015/11/flooding-and-winter-storms-thought-to.htmlFlooding and winter storms thought to have killed at least fouteen in Texas, Oklahoma and Kansas.                                                    At least fourteen people are thought to have died as flooding and...
http://sciencythoughts.blogspot.co.uk/2015/10/flash-flooding-brings-chaos-to-south.htmlFlash flooding brings chaos to South California.                                                   Many areas of southern California are recovering after a series of thunderstorms caused flash flooding across parts of Los Angeles, San Luis Obispo, Santa...
http://sciencythoughts.blogspot.co.uk/2015/06/severe-damage-to-homes-and-businesses.htmlSevere damage to homes and businesses after tornado hits Hawthorne, Nevada.          Six homes and five businesses have reportedly suffered severe damage after a tornado touched down in the town of Hawthorne in Mineral County, Nevada, at about 3.15 pm local time on Friday 5 June 2015.  The storm created a trail of damage through the town about...
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Saturday, 17 October 2015

Magnitude 3.4 Earthquake in Ripley County, Missouri.

The United States Geological Survey recorded a Magnitude 3.4 Earthquake at a depth of 17 km, in northern Ripley County, in southern Missouri, slightly after 3.25 pm local time on Friday 16 October 2015 (slightly after 8.25 pm GMT). These are no reports of any damage or injuries associated with this event, but people have reported feeling it locally.

The approximate location of the 16 October 2015 Ripley County Earthquake. Google Maps.

Southourn Missouri lies within an area known as the New Madrid Fault Zone, an seismically active area which lies over the deeply buried Reelfoot Rift, an area of tectonic expansion associated with the breakup of the ancient supercontinent of Rodinia about 750 million years ago. This is no longer an active rift, but it is an area of weakness within the North American Plate which is more prone to movement in response to other tectonic stresses, such as the compression of the plate by expansion beneath the Atlantic and Pacific Oceans.

The Reelfoot Rift is overlain by a deep layer of poorly consolidated tertiary sediments. These sediments are prone to liquefaction during tremors. When this occurs the sediments behave as a liquid, rather than a solid, with often devastating consequences for man made structures such as buildings and roads on the surface.

The structures underlying the New Madrid Fault Zone. Geological Survey of Alabama.

The New Madrid Fault Zone gets its name from the New Madrid Earthquakes of 1811-12, which were felt over much of the central United States, entirely destroying the city of New Madrid, Missouri, and causing damage to buildings as far away as St Louis, Missouri and Memphis Tennessee as well as diverting the course of the Mississippi River.

Witness accounts of Earthquakes can help geologists to understand these events, and the structures that cause them. The international non-profit organization Earthquake Report is interested in hearing from people who may have felt this event; if you felt this quake then you can report it to Earthquake Report here.

See also...

A pair of giant sinkholes have appeared at the Top of the Rock Golf Course in Taney County, Missouri, on Friday 22 May 2014. The larger of the two sinkholes measures 25 m across by 10 m deep, while the...


The United States Geological Survey recorded a Magnitude 3.6 Earthquake at a depth of 10 km, roughly 3 km to the south of the city of Steele in Pemiscot...


The United States Geological Survey recorded a Magnitude 2.8 Earthquake at a depth of 7.7 km, roughly 4 km to the west of the city of Malden in Dunklin...


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