freya
You're right, this weekend they've really outdone themselves! On Sat I showed my son a very large chemtrail just as we were exiting the garage. He said: "that's a cloud", then started to rant about me being a paranoid-conspiracy-theory-lover. We turned north and he became very quiet when he saw about 12 huge chemtrails criss-crossing the northern sky in a clearly man-made pattern. We drove over the 401 and could see some of them stretching from Mississauga to beyond Scarborough. I've never seen anything like it before since I first noticed the chemtrails in Toronto, some 10-11 years ago.
I wanted to go back to the bridge and take some pics, but my camera is too small and can't take wide-angle pictures. Also, I would have had to walk there as I can't stop over the bridge and I did not want to allow whatever they were spraying to soak me. But I did take a pic from my bedroom window (through the screen but clear enough) of a tiny bit of sky with no less than 4 chemtails in it.
On Sun I missed the spraying, but took a picture of an EDB rainbow from my balcony. Pretty but deadly.
Like you mentioned, the drop in temperature was dramatic, Mon was freezing! Tue was a bit better.
I'll post the pictures as soon as I'll resize them, they're over 2.5MB now.