I don't believe this information has been explored in full and does relate to the post above. According to the claim, the object was in the sky for 10 minutes. As highlighted by Mick West a decoy IR flare can illuminate for 7 or so minutes, which would account for the sighting duration (this will vary dependent on the flare being used, assuming it is a flare?).
Below are a range of flares used by the military, detailed are the aircraft that use them:
- https://www.chemring.com/~/media/Files/C/Chemring-V3/documents/countermeasures/MJU-50AB Brochure v3.pdf
Looking at the training videos it is possible that a M206 Infrared Countermeasure/IR decoy was deployed by a helicopter or osprey. Each unit only weighs 300 grams or 0.30 pounds (as part of a larger cluster).
On the night in question, the wind speed was 14-18 mph with gusts up to 22-28mph (see below). You can hear the wind gusts in the videos released.
A formation of flares even from a distance would unlikely maintain a 'V' pattern/formation even as they drop? More data on the videos would help. Fairly sure these are flares though...
Let's eliminate countermeasure flares.
[Countermeasure flare] an aerial infrared countermeasure
used by a plane or helicopter to counter an infrared homing
("heat-seeking") surface-to-air missile
or air-to-air missile
. Flares are commonly composed of a pyrotechnic composition
based on magnesium
or another hot-burning metal, with burning temperature equal to or hotter than engine exhaust. The aim is to make the infrared-guided missile seek out the heat signature from the flare rather than the aircraft's engines.
Countermeasure flares are small, are free falling and only last a few seconds.
Some examples of what countermeasure flares look like at night:
(The author of this video presents them as a mystery)
In this case, beyond reasonable doubt, these were parachute illuminating flares. And almost certainly these were large flares dropped at high altitude by an aircraft.
A parachute illuminating (or illumination) flare is meant to be an artificial Sun that lights up the landscape. In the US military there are several types.
Hand held rockets
Artillery rounds - 80mm and 120mm mortar:
I'm going to point to this recent thread which will give more info on the large parachute illuminating flares dropped from aircraft at high altitude.
In regard to cases that involve large flares that are many miles away from the observer/camera - 10 miles and more:
In this case, and in many others that involve large and very distant parachute illuminating flairs, we see comments from people who identify themselves as military or ex-military who claim the flare idea as impossible. This video illustrates why we get this type of claim.
It's reasonable to conclude that these people have only
seen relatively small and relatively close artillery rounds.
The flares we see in this video are hundreds of yards away - not tens of miles away.
-Obvious smoke trails
But very large and very distant flares appear quite different due to the great distances.
-Very slow or no noticeable movement
-Very little or no trace of smoke trails
These flares, for example, were never part of a UFO case. They are well documented to be illuminating flares dropped by an aircraft in a search and rescue mission. Distance from the camera - about 20 miles. (The aircraft sounds are from a nearby airport, not the aircraft dropping the flares.)
Reports of burning flares observed in the sky last night came in from Oakville and Mississauga tonight after emergency crews are performing a water rescue. Bright shimmer with a faded trail of smoke in the distance could be seen all evening over Lake Ontario. The Royal Air Force dispatched a rescue airplane from 424 Squadron from 8 Wing in Trenton, Ontario. Canadian Coast Guard along with water units from the Halton Regional Police Services are currently searching for a missing boater after an unoccupied vessel was found. In a tweet tonight, the police underlined that the shiny lights over the lake that people may have spotted were in fact flares used by the crews to illuminate the otherwise dark waters below. The last known position of the possible victim as per HRPS is determined to be the mouth of 16 Mile Creek located near the corner of Lakeshore Rd and Water St in Oakville, Canada. In an updated statement we have learned that the person missing is 80 year old Robert Wyles, an experienced boater who had acquired the vessel the same day and who has been missing since about 6h pm last night.
The difference in this present case is that - as already noted here - these seem to be IR illuminating flares. They are designed to illuminate the landscape primarily with infrared light, and are useful for troops who are equipped with passive infrared sensors. (And would be a positive boon if the enemy troops were not equipped with IR sensors.)
So rather than burning with a bright orange flame, they appear to the naked eye to be dimmer and burn with a more magenta flame. In other words, they are most likely Northrup Grumman LUU-19B/B Infrared Flares.