Dave Sills 🍁🌪️🎶⚓☮️
@davesills.ca
Canadian tornado guru at uwo.ca/ntp and the new CSSL.ca at WesternU in Londontario, my debut album is 'Fifty' (bit.ly/40WqxUy) and my latest album is 'Cover Me' (bit.ly/3V1MnCG), Great Lakes sailor, ECCC & YorkU alumnus, #ElbowsUp
Some of you may recall back last fall when I shared that applications for the 4th year of the ImpactWX Genesis Grant, which supports new ideas in severe weather response and awareness, were open.
I'm excited to share that this year's recipients have been selected!
I'm excited to share that this year's recipients have been selected!
Genesis Grant - ImpactWX
impactwx.com
October 9, 2026 at 9:44 PM
Some of you may recall back last fall when I shared that applications for the 4th year of the ImpactWX Genesis Grant, which supports new ideas in severe weather response and awareness, were open.
I'm excited to share that this year's recipients have been selected!
I'm excited to share that this year's recipients have been selected!
Tornado warning up for surprise supercell in the Muskoka area, with the storm currently west-northwest of Huntsville, ON moving the east-southeast (ie. towards Huntsville). Possible tornado debris signature (right panel). Take shelter if in the area! #ONstorm
October 9, 2026 at 3:35 PM
Tornado warning up for surprise supercell in the Muskoka area, with the storm currently west-northwest of Huntsville, ON moving the east-southeast (ie. towards Huntsville). Possible tornado debris signature (right panel). Take shelter if in the area! #ONstorm
Reposted by Dave Sills 🍁🌪️🎶⚓☮️
Congrats to Anne Carson! A brilliant writer who graciously contributed several poems to our latest album. Canada is home to the world’s greatest writers. m.youtube.com/watch?v=JO9t...
The Moon Dreams
YouTube video by Rheostatics - Topic
m.youtube.com
October 8, 2026 at 11:22 AM
Congrats to Anne Carson! A brilliant writer who graciously contributed several poems to our latest album. Canada is home to the world’s greatest writers. m.youtube.com/watch?v=JO9t...
Surprise storm chase yesterday in southwestern Ontario as the environment ahead of a cold front turned out to be more storm-conducive than had been forecast all week. Elevated supercells with some large hail. Put on a good lightning show after sunset :-) #ONstorm
October 8, 2026 at 11:03 AM
Surprise storm chase yesterday in southwestern Ontario as the environment ahead of a cold front turned out to be more storm-conducive than had been forecast all week. Elevated supercells with some large hail. Put on a good lightning show after sunset :-) #ONstorm
So that makes 6 tornadoes recorded so far for PEI in 2026, including one that caused EF1 damage. A good number of these were associated with thunderstorms, possibly supercells. Big number for the smallest of provinces. #PEstorm
October 2, 2026 at 2:15 AM
So that makes 6 tornadoes recorded so far for PEI in 2026, including one that caused EF1 damage. A good number of these were associated with thunderstorms, possibly supercells. Big number for the smallest of provinces. #PEstorm
Reposted by Dave Sills 🍁🌪️🎶⚓☮️
As of today, I am back in weather radar research with both feet!
September 24, 2026 at 11:30 AM
As of today, I am back in weather radar research with both feet!
Toronto got lucky with this storm on Sep 2. An HP supercell through the city with isolated large hail and downburst winds, but didn't quite have its low-level rotation together until it got to New York where it produced EF0 and EF1 tornadoes. Given the environment that day, far worse was possible.
The NTP-confirmed downburst that hit the northwestern part of Toronto on September 2 had damage rated at EF0. An NTP ground survey documented damage to homes, apartments and trees in the area.
Full details at the NTP blog: www.uwo.ca/ntp/blog/202...
#ONstorm
Full details at the NTP blog: www.uwo.ca/ntp/blog/202...
#ONstorm
September 20, 2026 at 1:03 PM
Toronto got lucky with this storm on Sep 2. An HP supercell through the city with isolated large hail and downburst winds, but didn't quite have its low-level rotation together until it got to New York where it produced EF0 and EF1 tornadoes. Given the environment that day, far worse was possible.
If we take a big step back, Homo Sapiens existed for about 300,000 years before the first commercial oil wells in the 1800s. In less than *200 years* - a historical blip - we have so polluted our natural environment by burning oil and gas that the planetary damage will last well past 7 generations.
The new Canada's Changing Climate Report 2026 is a sobering read. Even if greenhouse gas emissions stopped tomorrow, the warming / impacts are locked in for centuries. I was a lead author for Ch 8 on extremes - lots of uncertainty.
Please at least read the summary:
www.canada.ca/content/dam/...
Please at least read the summary:
www.canada.ca/content/dam/...
September 10, 2026 at 12:51 PM
If we take a big step back, Homo Sapiens existed for about 300,000 years before the first commercial oil wells in the 1800s. In less than *200 years* - a historical blip - we have so polluted our natural environment by burning oil and gas that the planetary damage will last well past 7 generations.
The new Canada's Changing Climate Report 2026 is a sobering read. Even if greenhouse gas emissions stopped tomorrow, the warming / impacts are locked in for centuries. I was a lead author for Ch 8 on extremes - lots of uncertainty.
Please at least read the summary:
www.canada.ca/content/dam/...
Please at least read the summary:
www.canada.ca/content/dam/...
September 9, 2026 at 1:19 PM
The new Canada's Changing Climate Report 2026 is a sobering read. Even if greenhouse gas emissions stopped tomorrow, the warming / impacts are locked in for centuries. I was a lead author for Ch 8 on extremes - lots of uncertainty.
Please at least read the summary:
www.canada.ca/content/dam/...
Please at least read the summary:
www.canada.ca/content/dam/...
I deal with broadcast media across Canada, and almost without fail they'll provide interview times in standard time even when they're in daylight time i.e. EST instead of EDT. For such a time-focused business it's surprising. Why not just just 'eastern time' ET? Maybe a media friend can explain :-)
September 8, 2026 at 1:14 PM
I deal with broadcast media across Canada, and almost without fail they'll provide interview times in standard time even when they're in daylight time i.e. EST instead of EDT. For such a time-focused business it's surprising. Why not just just 'eastern time' ET? Maybe a media friend can explain :-)
Here at @westernu.ca, they just conducted a monthly test of the tornado siren at noon. May be the real thing later this afternoon.
Monitor @environmentca.bsky.social alerts and keep an eye on the skies today in southern Ontario.
#ONstorm
Monitor @environmentca.bsky.social alerts and keep an eye on the skies today in southern Ontario.
#ONstorm
September 2, 2026 at 4:03 PM
Here at @westernu.ca, they just conducted a monthly test of the tornado siren at noon. May be the real thing later this afternoon.
Monitor @environmentca.bsky.social alerts and keep an eye on the skies today in southern Ontario.
#ONstorm
Monitor @environmentca.bsky.social alerts and keep an eye on the skies today in southern Ontario.
#ONstorm
Heads up in southern Ontario! The ingredients are coming together for what could be the biggest storm day of the year. Particularly for the area north of London to the GTA. Monitor Environment Canada alerts and keep eyes on the skies today. Here's hoping the worst doesn't happen. #ONstorm
September 2, 2026 at 1:06 PM
Heads up in southern Ontario! The ingredients are coming together for what could be the biggest storm day of the year. Particularly for the area north of London to the GTA. Monitor Environment Canada alerts and keep eyes on the skies today. Here's hoping the worst doesn't happen. #ONstorm
Canada recently lost one of its legendary meteorologists - Jim Bruce, age 97. Started his career in 1948 and rose to great heights - head of AES (now MSC), established the flood warning system for Ontario, a leader at the WMO, Nobel winner with IPCC members, Order of Canada, and much much more. RIP.
September 2, 2026 at 12:47 PM
Canada recently lost one of its legendary meteorologists - Jim Bruce, age 97. Started his career in 1948 and rose to great heights - head of AES (now MSC), established the flood warning system for Ontario, a leader at the WMO, Nobel winner with IPCC members, Order of Canada, and much much more. RIP.
Introduce yourself with 10 acts or bands you’ve seen live.
1 #Rheostatics 🇨🇦
2 #ArtBergmann 🇨🇦
3 #BigSugar 🇨🇦
4 #Rush 🇨🇦
5 #TheBeaches 🇨🇦
6 #SarahMcLachlan 🇨🇦
7 #kdlang 🇨🇦
8 #BlueRodeo 🇨🇦
9 #TheTragicallyHip 🇨🇦
10 #NeilYoung 🇨🇦
And some less important stuff from other countries ;-)
1 #Rheostatics 🇨🇦
2 #ArtBergmann 🇨🇦
3 #BigSugar 🇨🇦
4 #Rush 🇨🇦
5 #TheBeaches 🇨🇦
6 #SarahMcLachlan 🇨🇦
7 #kdlang 🇨🇦
8 #BlueRodeo 🇨🇦
9 #TheTragicallyHip 🇨🇦
10 #NeilYoung 🇨🇦
And some less important stuff from other countries ;-)
Introduce yourself with 10 acts or bands you’ve seen live.
1 #JeffBuckley
2 #Rheostatics 🇨🇦
3 #Sugar
4 #PeterGabriel
5 #TheCure
6 #ViolentFemmes
7 #BruceCockburn 🇨🇦
8 #WarrenZevon
9 #PJHarvey
10 #NeilYoung 🇨🇦
1 #JeffBuckley
2 #Rheostatics 🇨🇦
3 #Sugar
4 #PeterGabriel
5 #TheCure
6 #ViolentFemmes
7 #BruceCockburn 🇨🇦
8 #WarrenZevon
9 #PJHarvey
10 #NeilYoung 🇨🇦
Introduce yourself with 10 acts or bands you've seen live.
1. L7
2. Yes
3. Pixies
4. Lou Reed
5. Hüsker Dü
6. Pretenders
7. Dead Kennedys
8. Laurie Anderson
9. Sisters Of Mercy
10. Siouxsie and The Banshees
1. L7
2. Yes
3. Pixies
4. Lou Reed
5. Hüsker Dü
6. Pretenders
7. Dead Kennedys
8. Laurie Anderson
9. Sisters Of Mercy
10. Siouxsie and The Banshees
August 30, 2026 at 4:44 PM
Introduce yourself with 10 acts or bands you’ve seen live.
1 #Rheostatics 🇨🇦
2 #ArtBergmann 🇨🇦
3 #BigSugar 🇨🇦
4 #Rush 🇨🇦
5 #TheBeaches 🇨🇦
6 #SarahMcLachlan 🇨🇦
7 #kdlang 🇨🇦
8 #BlueRodeo 🇨🇦
9 #TheTragicallyHip 🇨🇦
10 #NeilYoung 🇨🇦
And some less important stuff from other countries ;-)
1 #Rheostatics 🇨🇦
2 #ArtBergmann 🇨🇦
3 #BigSugar 🇨🇦
4 #Rush 🇨🇦
5 #TheBeaches 🇨🇦
6 #SarahMcLachlan 🇨🇦
7 #kdlang 🇨🇦
8 #BlueRodeo 🇨🇦
9 #TheTragicallyHip 🇨🇦
10 #NeilYoung 🇨🇦
And some less important stuff from other countries ;-)
Who would have thought that this beloved Blue Rodeo song would end up becoming a Canadian rallying cry? “Out in the middle of #LakeOntario”! #LakeOntarioForever
youtu.be/oMt0skVPC0o?...
youtu.be/oMt0skVPC0o?...
Blue Rodeo - Hasn't Hit Me Yet (Official Music Video)
YouTube video by Blue Rodeo
youtu.be
August 28, 2026 at 12:25 PM
Who would have thought that this beloved Blue Rodeo song would end up becoming a Canadian rallying cry? “Out in the middle of #LakeOntario”! #LakeOntarioForever
youtu.be/oMt0skVPC0o?...
youtu.be/oMt0skVPC0o?...
FYI, the name Lake Ontario is recognized internationally, appears in federal legislation on both sides of the border, and is embedded in treaties dating back more than a century. Because the Lake is shared, neither country can *legally* rename it. But the orange felon just did. #AmericanIdiot
August 27, 2026 at 6:20 PM
FYI, the name Lake Ontario is recognized internationally, appears in federal legislation on both sides of the border, and is embedded in treaties dating back more than a century. Because the Lake is shared, neither country can *legally* rename it. But the orange felon just did. #AmericanIdiot
Reposted by Dave Sills 🍁🌪️🎶⚓☮️
With $8 million in federal funding, #WesternU has recruited internationally recognized severe storm expert Seth Guikema as the Eddie Goldenberg Research Chair of Canada in Climate Risk and Resilience Analytics.
Read more: news.westernu.ca/2026/08/eddi...
Read more: news.westernu.ca/2026/08/eddi...
August 27, 2026 at 4:52 PM
With $8 million in federal funding, #WesternU has recruited internationally recognized severe storm expert Seth Guikema as the Eddie Goldenberg Research Chair of Canada in Climate Risk and Resilience Analytics.
Read more: news.westernu.ca/2026/08/eddi...
Read more: news.westernu.ca/2026/08/eddi...
So nice of US lead trade negotiator Jamieson Greer to gaslight Canadians on our own public broadcaster. And CBC, why give him the platform to spread lies on behalf of the orange menace? Just to say you have the ‘exclusive’ story? Barton barely pushed back. You got played. Do better, CBC.
August 27, 2026 at 1:33 AM
So nice of US lead trade negotiator Jamieson Greer to gaslight Canadians on our own public broadcaster. And CBC, why give him the platform to spread lies on behalf of the orange menace? Just to say you have the ‘exclusive’ story? Barton barely pushed back. You got played. Do better, CBC.
Some may find this useful - I've been doing all of this for many years :-) #BuyLocal #CanadaStrong
August 26, 2026 at 10:39 AM
Some may find this useful - I've been doing all of this for many years :-) #BuyLocal #CanadaStrong
I thought the orange menace would eventually go there. This is one of many 'shock and awe' actions he will threaten to take to try to break Canada and force us to comply. He's only getting started - it will get worse once Carney announces retaliation plans today. Better buckle up fellow Canadians.
August 25, 2026 at 12:21 PM
I thought the orange menace would eventually go there. This is one of many 'shock and awe' actions he will threaten to take to try to break Canada and force us to comply. He's only getting started - it will get worse once Carney announces retaliation plans today. Better buckle up fellow Canadians.
I've seen a lot of waterspout photos and video, and have taken some myself, but have never seen this quasi-steady state 'corkscrew' structure before. I think it's rare with tornadoes over land as well. @chrisknoxphotog.bsky.social captured something special with this one over Lake Ontario!
A quick clip of this morning's waterspout over Lake Ontario, just west of Presqu'ile Provincial Park. This came within 500m or so of the shore before it fell apart in heavy rain.
Brighton, Ontario
#onstorm #shareyourweather
Brighton, Ontario
#onstorm #shareyourweather
August 25, 2026 at 11:14 AM
I've seen a lot of waterspout photos and video, and have taken some myself, but have never seen this quasi-steady state 'corkscrew' structure before. I think it's rare with tornadoes over land as well. @chrisknoxphotog.bsky.social captured something special with this one over Lake Ontario!
New paper alert! This peer-reviewed journal paper is the most comprehensive study of tornado-related wind risk ever undertaken for Canada. And includes our latest best estimate of annual occurrence rate (below). Should be open access here:
kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...
kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...
August 24, 2026 at 12:30 PM
New paper alert! This peer-reviewed journal paper is the most comprehensive study of tornado-related wind risk ever undertaken for Canada. And includes our latest best estimate of annual occurrence rate (below). Should be open access here:
kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...
kwnsfk27.r.eu-west-1.awstrack.me/L0/https:%2F...