***I STRONGLY RECOMMEND USING EARPHONES/HEADPHONES (BASS AMPLIFIED) TO HEAR THE MORE NATURAL SOUND OF THE RAIN***
A video compilation of the heavy afternoon convective rainfall and thunderstorms that affected the island of Montreal and closely surrounding locations.
Organized deep convection was associated with a cold front. Within the pre-frontal environment were strong WSW shearing fields, as well as sufficient solar heating and very high humidity that culminated into borderline moderate-high instability. Some rotation was briefly observed with the deep convection that affected the West Island as the multi-cell thunderstorm grew westwards with a brief embedded supercellular tendency at the West end (this can be seen by 23:00 into the video, but especially from 26:20 to 28:57 into the video). This video principally highlights the very heavy rainfall across the separate rounds of rainfall, especially with the rapidly growing multi-cell thunderstorm family that occurred by mid-afternoon. This went on to produce a maximum gust of 91 km/h in the West Island, at the airport. Collectively, an enormous amount of rainfall occurred over the West Island. Notably, 31.0 mm of rainfall fell at the airport, and 43.7 mm was observed at Sainte-Anne-de-Bellevue. Some thunder was observed (not on video) with the second of the heavy rainfall occurrences during the early-afternoon. Severe Thunderstorm Watches were released during the early-afternoon, and two warnings given to the island during the early- to mid-afternoon period.
It should also be noted that a thunderstorm cluster occurred during the late-predawn period, beginning in Lachute-Saint Placide, and then affecting Mirabel-Sainte-Jerome, and eventually towards Blainville-Mascouche to East Laval. This was associated with a shear axis and shortwave trough, continued moderate humidity and strong deep WSW/West shearing fields.
Footage was taken in SW Pierrefonds, located in Montreal’s West Island. Radar imagery is courtesy of NOAA.
~Trav.~
Негізгі бет Severe thunderstorm in Montreal -June 30th, 2021
No video
Пікірлер: 7