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204880 sightings reported...
and growing

Alcester, SD

Sighted on Tuesday 23. June 2015
Reported on
Shape: Chevron | Duration: 25 minutes
Source:

Ripples in the sky, and bright flashes of light.There are a number of rippling chevron waves throughout the sky, it has been going on for the past 25 minutes, still going. At times there are bright flashes of light, much like a shooting star but there is no trail. Also, quick moving objects have appeared a number of times. The ripples become lesser and less frequent and then another bright flash appears and the ripples come back stronger and closer. We've ruled out fog, shooting stars, and the possibility of seeing the northern lights. This is unexplainable to us all.

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Top 100 nearest sightings ordered by sighting date (100 miles radius):

Location Sighted on Shape Duration
Location Sighted on Shape Duration
LISMORE 2023-07-16 ROUND STILL CURRENT
Salem, South Dakota (United States) 2020-03-20 Circle 00:30:00
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Sioux Falls, South Dakota (United States) 2019-10-26 Sphere 00:05:00
Dell Rapids, South Dakota (United States) 2019-10-01 Other 00:00:10
Sioux Falls, South Dakota (United States) 2018-11-10 Triangle 00:01:00
Yankton, South Dakota (United States) 2018-10-12 Star-like 00:11:00
Yankton, South Dakota (United States) 2018-06-23 Disc 00:00:25
Vermillion, South Dakota (United States) 2018-01-10 Circle
Sioux City, Iowa (United States) 2017-09-21 Circle 00:00:03
Sioux City, Iowa (United States) 2017-09-08 Sphere 02:00:00
Sheldon, Iowa (United States) 2017-08-26 N, A 00:30:00
Sioux Falls, South Dakota (United States) 2017-08-10 Bullet, Missile 00:05:00
Granville, Iowa (United States) 2017-07-13 Sphere 00:05:00
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Sioux City, Iowa (United States) 2017-07-03 Fireball 00:12:00
Sioux Falls, SD 2017-05-11 Changing 1:00
Hawarden, South Dakota (United States) 2017-04-24 Circle 01:00:00
Hartford, SD 2017-04-11 Light 10 minutes
North Sioux City, South Dakota (United States) 2017-03-28 Sphere 00:03:00
Sioux Falls, SD 2017-03-04 Sphere 5 seconds
Sioux Falls, SD 2017-02-18 Sphere >15 minutes
Hawarden, South Dakota (United States) 2017-02-13 Sphere 01:00:00
Alcester, SD 2017-02-13 Sphere 30 minutes
Brandon, SD 2017-01-18 Other 35 minutes
Sioux Falls, SD 2016-12-04 Light 30 seconds
Sioux Falls, SD 2016-11-18 Chevron 5 minutes
Sioux Falls, SD 2016-11-11 Circle 3-4 seconds
Sioux Falls, SD 2016-11-05 Oval 15 seconds
Sioux City, Iowa (United States) 2016-10-20 Circle 00:45:00
Sioux City, Iowa (United States) 2016-10-13 Cigar 00:15:00
Sioux Falls, SD 2016-10-02 Disk 10 seconds
North Sioux City, SD 2016-09-29 Light 20-30 seconds
Dell Rapids, SD 2016-09-28 Flash Few seconds
Tea, SD 2016-09-21 Fireball 4 seconds
Jefferson, SD 2016-08-27 Fireball Few minutes
Sioux Falls, South Dakota (United States) 2016-08-22 Sphere 00:15:00
Sioux City, Iowa (United States) 2016-08-12 Triangle 00:00:05
Yankton, South Dakota (United States) 2016-08-01 Star-like 00:03:00
Crooks, SD 2016-06-04 Unknown 10 minutes
Granville, Iowa (United States) 2016-05-02 Other Undisclosed
Sioux City, IA 2016-02-27 Formation 10 seconds
Sioux Falls, SD 2015-11-24 15 minutes
Sioux Falls, SD 2015-11-24 Other ongoing
Wakefield, Nebraska (United States) 2015-11-10 Triangle Undisclosed
Sioux City, Iowa (United States) 2015-11-07 Fireball Undisclosed
Sioux Falls, South Dakota (United States) 2015-11-02 Cylinder Undisclosed
Hartford, South Dakota (United States) 2015-11-01 Sphere Undisclosed
Dell Rapids, SD 2015-10-31 Triangle 30 seconds
Sioux County, Iowa (United States) 2015-10-20 Bright light 6:30am to still bright and moving west
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Sioux Falls, SD 2015-09-13 30-60 minutes
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Sioux City, Iowa (United States) 2015-08-09 Square, Rectangular Undisclosed
Jefferson, South Dakota (United States) 2015-08-02 Diamond Undisclosed
Sioux Falls, South Dakota (United States) 2015-07-27 Triangle Undisclosed
Sioux Falls, SD 2015-07-27 Other 3-6 minutes
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Orange City, Iowa (United States) 2015-06-30 Triangle Undisclosed
Sioux Falls, South Dakota (United States) 2015-06-28 Cylinder, its was 30ft in diameter -
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Sioux Falls, South Dakota (United States) 2015-06-07 Other Undisclosed
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Sioux City, IA 2015-05-13 Sphere 4 seconds
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Sioux Falls, SD 2015-03-14 Chevron 2
Salix, Iowa (United States) 2015-03-06 Disc Undisclosed
Sioux City, IA 2014-12-12 Other 180 seconds
Sioux Falls, SD 2014-08-30 Circle 5 minute
Sioux Falls, SD 2014-08-30 Circle 5 minute
Sioux City, Iowa (United States) 2014-08-18 Fireball Undisclosed
Sioux Falls, SD 2014-08-12 Teardrop 15 minutes
Sioux Falls, SD 2014-08-12 Teardrop 15 minutes
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Sioux Falls, South Dakota (United States) 2014-08-01 Triangle Undisclosed
Geneva/Manchester, New York (United States) 2014-06-28 Fireball Undisclosed
Sheldon, Iowa (United States) 2014-04-25 Blimp 01:05:00
Sioux Falls, SD 2014-04-20 Circle 5 minutes
Laurel, Nebraska (United States) 2014-03-20 Circle Undisclosed
Sioux Falls, South Dakota (United States) 2014-02-17 Sphere Undisclosed
Sioux City, IA 2014-01-13 Circle 2 minutes
Hartford, SD 2014-01-06 Other 7 minutes
Yankton, South Dakota (United States) 2014-01-03 Sphere Undisclosed
Yankton, SD 2014-01-02 Fireball 5-10 minutes
Sheldon, IA 2013-10-13 Circle 5 minutes
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South Sioux City, Nebraska (United States) 2013-09-25 Sphere, Triangle Undisclosed
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South Sioux City, NE 2013-09-24 Sphere 1.5 hou rs
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