Direction from which the phenomenom entered the field of vision of the witness.
Direction from which the phenomenom left the field of vision of the witness.
The witness saw the phenomenon travelling from right to left.
The witness saw the phenomenon travelling from left to right.
The witness didn't provide enough information about the diretion of the phenomenon.
The witness heard a sound at same moment of viewing phenomenon (concurrent sound).
The witness heard a delayed sound, after initial view of phenomenon (delayed sound).
Each witness has a "level" of experience from 1 to 5 - 5 is the highest level of experience.
Use the buttons on the top right section of the map to change the display options.
| ID | UT Date & Time | Local Date & Time | City | State | Dur. | Magn. | D. Sound | C. Sound | Frag. | Observer | Exp. |
|---|---|---|---|---|---|---|---|---|---|---|---|
| a | 2017-05-04 03:40 UT | 2017-05-03 20:40 PDT | Athena | OR | ≈3.5s | -19 | - | - | - | Jeff C | 3 |
| b | 2017-05-04 03:40 UT | 2017-05-03 21:40 MDT | Great Falls | MT | ≈3.5s | -21 | - | - | - | Shad P | 1 |
| c | 2017-05-04 03:44 UT | 2017-05-03 21:44 MDT | Okotoks | Alberta | ≈20s | 0 | ? | ? | ? | Alex C | 2 |
| d | 2017-05-04 03:45 UT | 2017-05-03 21:45 MDT | Kalispell | MT | ≈3.5s | -22 | - | - | James V | 3 | |
| e | 2017-05-04 03:50 UT | 2017-05-03 21:50 MDT | Missoula | MT | ≈1.5s | -28 | - | - | - | Steph L | 1 |
| f | 2017-05-04 03:55 UT | 2017-05-03 21:55 MDT | Kalispell | MT | ? | -13 | ? | ? | - | Shelbi C | 2 |
| g | 2017-05-04 04:00 UT | 2017-05-03 22:00 MDT | Calgary | Alberta | ? | -21 | ? | ? | ? | Carlene S | 1 |
| h | 2017-05-04 04:00 UT | 2017-05-03 22:00 MDT | Okotoks | Alberta | ≈3.5s | -22 | ? | ? | ? | Jaimie M | 1 |
| i | 2017-05-04 04:00 UT | 2017-05-03 21:00 PDT | Potlatch | ID | ≈3.5s | -25 | - | - | - | Amos D | 2 |
| j | 2017-05-04 03:30 UT | 2017-05-03 21:30 MDT | West Glacier | MT | ≈3.5s | -7 | ? | ? | Gary S | 3 | |
| k | 2017-05-04 03:35 UT | 2017-05-03 21:35 MDT | Belgrade | MT | ≈1.5s | -13 | - | - | - | Annika R | 1 |
| l | 2017-05-04 04:00 UT | 2017-05-03 22:00 MDT | Columbia Falls | MT | ≈1.5s | -8 | ? | - | Lee B | 2 |