Two More Tornadoes in Ontario; 2 EF1 Tornadoes on August 27 2020 Confirmed
/The Northern Tornado Project team confirmed that two EF1 tornadoes occurred during the afternoon of August 27, 2020 in Southern Ontario.
Their investigation of the tornado at Mount Carmel (2:30 PM) found that this tornado had a maximum wind speed of 155 km/h, 7.1 km long path with a width of 100m. The damage to the century barn can be seen in this tweet by Connell Miller from NTP:
A second tornado at Union (St. Thomas area) which occurred at 3:15 PM had a maximum wind speed of 150 km/h, 5.2 km long path with a width of 150m. They found that a small century barn was shifted on its foundation as well as damage to trees and crops. If you look closely you can also see crop damage in second photo in the tweet below:
NTP has information about their investigations including photos and maps showing the land (blue) and drone (orange) survey paths and where the photos were taken. Click on the maps below to go to their site and view the details.
Timeline
11:30 AM: Environment Canada issued a Severe Thunderstorm Watch that included both areas affected by the tornadoes:
1:29 PM: Environment Canada issued a Severe Thunderstorm Warning that includes Southern Huron County (Mount Carmel):
2:06 PM: Environment Canada issued a Severe Thunderstorm Warning for an area that included Eastern Lambton County (just south of Mount Carmel)
2:39 PM: Environment Canada issued a Severe Thunderstorm warning for the area that included St. Thomas (Union):
2:45 PM: Adam went live.
3:12 PM: We notified all those in the path who use our app, text service, and social media pages “Tornado Reported” for the area near St. Thomas (Union).
3:12 PM: At the same time Environment Canada also issued a Tornado Warning for the St Thomas (Union) area:
Keep alert and trust your intuition if you think that the weather may be severe. The Mount Carmel tornado did not have a tornado warning. There can be many reasons why some tornadoes are not warned. Different areas have different radar coverage and some tornadoes do not have a strong radar signature. Some tornadoes may also form quickly and the associated radar signature is brief. Observations by reliable spotters play a role in tornado warnings as well.
We sincerely hope everyone stayed safe in the path of these tornadoes and thank you so much to all of those who sent in reports! Your reports are critical in confirming tornadoes and continuing our goal to raise awareness about them and severe weather. Thank you!
