Simon Lam Eng @SimonLamEng
Research meteorologist with @westernuNHP. Civil EIT. Obsessed with severe weather. Opinions are my own. Toronto, Ontario Joined July 2012-
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@Spothe Complete with pyroCBs for added measure!
Plenty of 2 cm hail, some stones maybe 3 #onstorm
Flash flooding from the earlier thunderstorm in the neighbourhood of Douglasdale in Calgary. Lots of hail on the ground here but it’s all pea-dime sized. #abstorm #yyc @teamdomcanada
Hail near Brooks pic taken by Eric Thompson #abstorm
Quarter to loonie sized hail south of Brooks #abstorm
Quarter to loonie sized hail south of Brooks #abstorm
Lots of nickel to quarter sized hail northwest of Brooks, Alberta #abstorm
@PavanFederico00 This has been an issue for event research in Canada as well. It's part of why we make copies of articles with weather event info, I've seen online sources disappear even over the course of only a few years.
Landspout tornado northwest of Abernathy, Texas at 6:04 PM central time ✨🌪️✨ #OzOrBust #txwx @ChrisKridler
#ONStorm #ONwx On this day in 2022, a historic derecho steamrolled across Southern Ontario and into Quebec, across the most densely populated corridor of Canada. There were nine EF2 strength downbursts and four tornadoes associated with the derecho, including an EF2 tornado that touched down in Uxbridge with estimated wind speeds of 195km/h. Sadly, sixteen people lost their lives and $1.257 billion worth of damage was caused over the 1000km path of destruction. Our condolences go out to the friends and family of those who were lost. What do you remember from this day? - Alannah Map courtesy of the Northern Tornadoes Project
@PMDStormchaser @chase_archive Same! Had no idea photos even existed of it... I often think of it as the "forgotten" F4 from that era, since it was overshadowed by the Woodstock & Barrie events, and the fact that it (thankfully!) didn't kill anyone (although a few ppl came real close).
We found several points of EF4 damage southeast and southwest of Enid from the tornado last night. Damage surveys still ongoing, but we have found EF4 damage. #okwx
New (open-access) paper! This full-scale wind tunnel study investigates the wind loading of architectural rooftop screens and their influence on the wind loads experienced by roof-mounted equipment (RME). Check it out here: doi.org/10.1080/237447…
TODAY: The @ibhshailstudy Record Hail Response Team is on the ground with @gensiniwx to document the likely new state of #Illinois hailstone record using our 3D scanning capabilities.
Excited to announce that my method for estimating wind speeds based on lofted debris in tornadoes was used as contextual evidence for upgrading the Enderlin, ND tornado to an EF5! journals.ametsoc.org/view/journals/… #NDwx #Enderlin #EF5 #Tornado
The @westernuCSSL /@westernuNTP assisted @NWSGrandForks with their upgrading of the official rating of the June 2025 Enderlin, ND tornado from EF3 to EF5. Official details here: uwo.ca/ntp/blog/2025/… Photo: @brianemfinger #NDWx #EF5 #Enderlin #Tornado
Mark Robinson @StormhunterTWN
78K Followers 1K Following Weather Network StormHunter, adventurer, meteorologist, father, husband. I have an odd life. https://t.co/FVNroKG1mF
Alex Masse @CAlexMasse
3K Followers 2K Following Chef. SW Ontario Storm and Aurora Chaser. Dabble in Aviation, Auto, Landscape, and Wildlife Photography.
Reed Timmer, PhD @ReedTimmerUSA
878K Followers 25K Following Extreme meteorologist, inventor and storm chaser intercepting the most powerful storms on the planet. I'm driven to push the science and its education forward.
Northern Tornadoes Pr... @westernuNTP
9K Followers 187 Following Founded in 2017 by Western University with ImpactWX, NTP aims to detect and document all tornadoes in Canada and uncover Canada’s true tornado climatology.
Brad Rousseau @bradrousseau
6K Followers 1K Following Meteorologist and storm chaser in Canada and USA.
alluringstorms 🇨�... @alluringstorms
3K Followers 2K Following Hi, I'm Paxton!! I'm a storm photographer in Ontario!🌪 Count: 5 (and 4 spouts) Links: https://t.co/tDuWuM22Ud
Instant Weather Ontar... @IWeatherON
75K Followers 920 Following Ontario's independent and community-driven weather organization. Providing context to severe weather since 2013. Download our app: https://t.co/HIGhpa8g3m
Troy Boone @derecho_series
2K Followers 299 Following 30 | Civil Engineering | Weather Nerd | Heavy Civil Construction | Stormspotter in Central Newfoundland 🇨🇦
The Weather Network @weathernetwork
1.6M Followers 2K Following Canada's #1 source for weather forecasts, news and information ☀☔⚡❄ #ShareYourWeather videos and photos with us!
Tom Stef @vaughanweather
6K Followers 2K Following Canadian storm chaser, President of Slate 10 Pictures Inc Exec Producer. Profile is a tornado I photographed in Hennessey, Oklahoma on May 19, 2010 🇨🇦🇧🇧🇭🇷
Jaclyn Whittal @jwhittalClimate
29K Followers 16K Following Founder/CEO One Earth Communications, Meteorologist, Climate Journalist, @RCGS_SGRC Fellow FI’23 @the_explorers_club Top50GlobalWomenInSustainability2025
Kim MacDonald 🌻 @KMacTWN
22K Followers 3K Following Pro weather conversationalist @weathernetwork, @breastcancercdn ambassador. ❤️my dog. Summer loving Canadian. 🌈 ally.
Tom Smetana 🇨🇦 ... @twstdbro
4K Followers 902 Following ❤ tornadoes, thunder & lightning, severe weather, automotive nut, proud 🇨🇦, driver/owner of the #BlueMoose (🌪94) #EhTeam
Brandon Houck ⚡️ @HouckisPokisewx
9K Followers 8K Following The Doppler Boy Weather Specialist / Producer @BrooksBandits broadcast Brooks, AB @NewCountry105 @1011boom New Country CNP Now Cast Radio, Team Dominator Canada
Gregory Kopp @gregoryalankopp
757 Followers 114 Following ImpactWX Chair in Severe Storms Engineering; Professor of Civil & Environmental Eng. at Western University; lead researcher for Northern Tornadoes Project
Dayna Vettese 🌪️ @daynavettese
9K Followers 949 Following She/Her. Meteorologist, Product & Editorial Manager, @weathernetwork. ⚡️ YorkU Atmospheric Science Alum. Storm Chaser. Dog, music, and movie enthusiast.
Connell Miller @ConnellMiller
722 Followers 281 Following Director of the @westernuNMP at @westernuCSSL; Adjunct Professor at @WesternU. Connecting all of Canada’s weather networks over at https://t.co/xpWWiA512z!
sharon Dorris🌚🌝 @Maryjamia113031
2 Followers 128 Following
Name @R360r10
0 Followers 2K Following
Claire Martin @ClaireMartinWx
13K Followers 5K Following Former-TV broadcaster/host. Qualified meteorologist. Expat. If my tweets don't sound British, they weren't written by me.
Dwauxkal @Dwauxkal3787
253 Followers 7K Following I’m learning to love the sound of my feet walking away from things not meant for me.
Great One @sandra733896
10 Followers 410 Following
Sabrina Nichole @EmmeLarissa
20 Followers 239 Following The part is open for every living soul dream it and win it Only New Account for me ‼️
CwoodWX @cwoodwx
80 Followers 238 Following
Musa Bojang @Bala51792849773
107 Followers 3K Following
kaleb edwars @EdwarsKaleb
689 Followers 7K Following
Osmany Hernández �... @OsmanyHernndez1
38 Followers 149 Following Civil Eng., PhD @ WesternU. From HOLGUIN 🇨🇺, but liked winter so much I decided to stay in 🇨🇦. Fan of: 🎵 📸 🌪
Timothy Ponepal @TJsupercell
1K Followers 489 Following local storm chaser in waterloo ON CANADA. Mathematician, learning to apply pure and applied mathematics to severe convective storms.
Siebo @Siebo951626
8 Followers 378 Following
Frank jack @Frankjack235993
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maged @USA_NWA
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Soudooson @SoudoosonMg02k
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Spencer Barratt @barratt_sp53544
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Suteckeart @SuteckeartSSg1
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R W @IntelAware
75 Followers 2K Following
Matthieu Lax @LaxMatthieu
122 Followers 499 Following Photographer and PhD student on tornadoes in Europe! Passionate about climate, storm and space ! Lyon 2 university/EVS laboratory.
Jonathan O'Brien @jeobrien_wx
988 Followers 543 Following Fire wx meteorologist @forestservice in SoCal | Fmr @NWS_MountHolly and Hollings @NWSBoston | @PlymouthState alum | Weather | Outdoors | Boston sports |
Kathy K @kathyk7210
18 Followers 486 Following
Trenten Pentelichuk @Trenten_WX
1K Followers 405 Following https://t.co/0dUvJQlA2S 🌪️ Storm Chaser #abstorm #skstorm 📸Photographer ➡️ @westernuNTP Super-Contributor https://t.co/p1yJeOhkpS
Allen Young @Allen899
554 Followers 4K Following i'm from a small town in the Niagara region called Port Colborne Ontario Canada I enjoy country music enjoy Driving anywhere and Every were.
Nobody @LimWeather
3K Followers 7K Following
Diane Riley @trade_withDiane
32 Followers 475 Following ✈️🌏World traveler 📈💹Trader and investor 📊Crypto mining expert 👨💼Co-owner of cube Fp with £250+ AUM ⏰24/7 trading 📨Dm let’s make money together 💯
Buddy Ching @JulieLi23744099
12 Followers 331 Following
Canadian Severe Storm... @westernuCSSL
212 Followers 60 Following The Canadian Severe Storms Laboratory (CSSL) at Western University is the authoritative source for severe convective storms data and research in Canada.
Danielle lambert @Daniellela59302
129 Followers 7K Following
sarahjane789 @sarahjane789
2 Followers 225 Following
Amanda wicks ❯❯�... @Wicks_amanda_
2K Followers 4K Following photographer & painter and Lupus fighter LØVË❤️🦋Seems to me that when I die these words will be written on my stone .R.I.P Liam ❯❯❯❯ , 🐾❤️
Jessica Arrazola @Jess_A_Arrazola
0 Followers 7 Following
Carl Jones @Wx_Jones
1K Followers 995 Following Meteorologist. 🎓FSU. North Florida native, North Dakota transfer. Weather, satellites, blowing snow, aurora #GOESR #JPSS1 @NASASocial
A New Democracy @NewDemocracy24
44 Followers 2K Following A New Democracy. Novel by Karu Sankaralingam. Available now on Amazon.
MNStorm @mn_storm
1K Followers 296 Following Severe/fire weather enthusiast. Meteorology student at SCSU.
Grace Yan @grace_yan25919
3 Followers 14 Following
Will Breckenridge @wgbreckenridge
95 Followers 305 Following I have been active in the community for many years, engaging in history, tour guiding and political activities.
kingdisco dancequeen @KingdiscoD29745
127 Followers 4K Following
Howard @wennerd_
12 Followers 70 Following
NSCS - National Storm... @chaser_summit
5K Followers 3K Following Official Twitter account of the National Storm Chaser Summit - NSCS a 501c3 nonprofit- dedicated to severe weather edu!🌪️🌩️ Join us at #NSCS26
DENT MASTERS YYC @DentMasters_
88 Followers 831 Following Locally Based Company Servicing YYC, Alberta, Canada for 19+ yrs. Factory Quality Paintless Dent Repair! Customer Service Driven! 100% Satisfied or it’s Free!
Kalin Mitchell @KalinMitchelCTV
16K Followers 949 Following Chief Meteorologist for @CTVAtlantic. West coast to east coast story. Worked the weather from mountains, prairies, lakes, and coasts. Husband and father.
Julianne Ho @julianneylh
2 Followers 14 Following
mb @windolyn11
0 Followers 16 Following
Peninsula Storm Chase... @CraigDunmore
1K Followers 629 Following Storm Chaser, Nature Photographer, Angler, Powerlineman, Guitarist, Skateboarder. Check out my Photography Portfolio on Instagram. @craigdunmore
Mark Robinson @StormhunterTWN
78K Followers 1K Following Weather Network StormHunter, adventurer, meteorologist, father, husband. I have an odd life. https://t.co/FVNroKG1mF
Reed Timmer, PhD @ReedTimmerUSA
878K Followers 25K Following Extreme meteorologist, inventor and storm chaser intercepting the most powerful storms on the planet. I'm driven to push the science and its education forward.
Northern Tornadoes Pr... @westernuNTP
9K Followers 187 Following Founded in 2017 by Western University with ImpactWX, NTP aims to detect and document all tornadoes in Canada and uncover Canada’s true tornado climatology.
Brad Rousseau @bradrousseau
6K Followers 1K Following Meteorologist and storm chaser in Canada and USA.
alluringstorms 🇨�... @alluringstorms
3K Followers 2K Following Hi, I'm Paxton!! I'm a storm photographer in Ontario!🌪 Count: 5 (and 4 spouts) Links: https://t.co/tDuWuM22Ud
Anthony Farnell @AnthonyFarnell
34K Followers 2K Following Chief Meteorologist at Global News. Accurate & reliable weather forecasts with a smile.
Instant Weather Ontar... @IWeatherON
75K Followers 920 Following Ontario's independent and community-driven weather organization. Providing context to severe weather since 2013. Download our app: https://t.co/HIGhpa8g3m
Rob's Obs @robsobs
7K Followers 191 Following Retired Environment Canada meteorologist and weather history buff. * INACTIVE ACCOUNT *
Jenny Hagan LostInSk @LostInSk
13K Followers 10K Following Storm chaser, NTP contributor and content director for @NewsWestCentral #skstorm #abstorm #mbstorm ✉️[email protected]
Troy Boone @derecho_series
2K Followers 299 Following 30 | Civil Engineering | Weather Nerd | Heavy Civil Construction | Stormspotter in Central Newfoundland 🇨🇦
The Weather Network @weathernetwork
1.6M Followers 2K Following Canada's #1 source for weather forecasts, news and information ☀☔⚡❄ #ShareYourWeather videos and photos with us!
Tom Stef @vaughanweather
6K Followers 2K Following Canadian storm chaser, President of Slate 10 Pictures Inc Exec Producer. Profile is a tornado I photographed in Hennessey, Oklahoma on May 19, 2010 🇨🇦🇧🇧🇭🇷
Chris Scott @ChrisScottWx
8K Followers 1K Following Chief 〽️eteorologist, The Weather Network Michigan Wolverine
Jaclyn Whittal @jwhittalClimate
29K Followers 16K Following Founder/CEO One Earth Communications, Meteorologist, Climate Journalist, @RCGS_SGRC Fellow FI’23 @the_explorers_club Top50GlobalWomenInSustainability2025
Cameron Nixon @CameronJNixon
24K Followers 612 Following Hodographer and storm chaser Co-founder of https://t.co/BnEhsdmyQr Research scientist, PhD (severe storm environments and interactions)
Kim MacDonald 🌻 @KMacTWN
22K Followers 3K Following Pro weather conversationalist @weathernetwork, @breastcancercdn ambassador. ❤️my dog. Summer loving Canadian. 🌈 ally.
Brandon Houck ⚡️ @HouckisPokisewx
9K Followers 8K Following The Doppler Boy Weather Specialist / Producer @BrooksBandits broadcast Brooks, AB @NewCountry105 @1011boom New Country CNP Now Cast Radio, Team Dominator Canada
Gregory Kopp @gregoryalankopp
757 Followers 114 Following ImpactWX Chair in Severe Storms Engineering; Professor of Civil & Environmental Eng. at Western University; lead researcher for Northern Tornadoes Project
Storm Chase Archive @chase_archive
2K Followers 10 Following The biggest collection of storm chase events on the web. For storm chasers, by storm chasers.
Nadocast @nadocast
80K Followers 8 Following Tornado probabilities via machine learning post-processing of public weather simulations. Subjective comparisons at https://t.co/BFbffoBke5, data at https://t.co/UsxjLsuwM6
ICECHIP @nsf_icechip
1K Followers 7 Following In-Situ Collaborative Experiment for the Collection of Hail In the Plains (ICECHIP). @NSF funded field campaign to better understand all aspects of hail.
Stephen Punwasi 🏚�... @StephenPunwasi
86K Followers 887 Following Finance & tech guy. Co-founder @BetterDwelling. You’ve probably read something I wrote.
Jonathan O'Brien @jeobrien_wx
988 Followers 543 Following Fire wx meteorologist @forestservice in SoCal | Fmr @NWS_MountHolly and Hollings @NWSBoston | @PlymouthState alum | Weather | Outdoors | Boston sports |
Emily Hopkins (Harp L... @emilyharpist
12K Followers 223 Following professional harpist & pedal addict
Canadian Severe Storm... @westernuCSSL
212 Followers 60 Following The Canadian Severe Storms Laboratory (CSSL) at Western University is the authoritative source for severe convective storms data and research in Canada.
Aaron Rigsby @AaronRigsbyOSC
30K Followers 1K Following International Storm Chaser, Photographer, Anything Outdoors 🏂 . Ohio to Colorado . Media use contact Aaron [email protected]
Northern Mesonet Proj... @westernuNMP
165 Followers 20 Following NMP was founded by Western University & ImpactWX and aims to connect and enhance Canada's weather networks. Creator of the @CanadianMesonet.
Dr. Kim Wood @DrKimWood
6K Followers 315 Following Tired associate professor studying hurricanes. Open science, Python, scicomm, feline 🐈 enthusiast. Personal account.
Meteorologist Katie N... @weather_katie
23K Followers 2K Following Emmy Award Winning Morning Meteorologist. Creator of the #FandomForecast CBM #918 CDM #7 Opinions are my own
Weather Fatalities @WXFatalities
6K Followers 1 Following Updates on global weather events and their casualties. Created/Updated by @ElijahWeather
Julianne Ho @julianneylh
2 Followers 14 Following
MNStorm @mn_storm
1K Followers 296 Following Severe/fire weather enthusiast. Meteorology student at SCSU.
Instant Weather Alber... @IWeatherAB
5K Followers 174 Following Alberta's independent and community-driven weather organization. Providing context to severe weather since 2013. Download our app: https://t.co/8ppLT5AR75
J Responds @assistachief
9K Followers 19 Following 🚒 Fire Chief 🚨 Masters in Disaster Emergency Management 🔥 FireSmart
Jake Sorber @jakesorber25
138 Followers 122 Following Meteorologist | all about the weather and anything outdoors - God's creation amazes me | MS Penn State 2021
Kins Whitaker @mwxhitaker
1K Followers 379 Following ➴ b.s. @ouags ‘21 ➴ m.s. em mgmt @millersvilleu ‘23 ➴ hazard mitigation & risk communication ➴ powerline enthusiast ➴ views my own ➴ 🏳️🌈
Insurance Institute f... @IBHS_org
9K Followers 2K Following At IBHS, we research the impact of severe weather on homes and businesses to find actionable solutions. #disasterprep
Mark Sudduth @hurricanetrack
72K Followers 215 Following Weather documentarian. Geographer. Crowdfunded via Patreon. Storm Tracker for Fox Weather. Lots on https://t.co/U02mJWcl75
Véronique Mayrand @vmayrand
5K Followers 3K Following Animatrice présentatrice radio-télé Radio-Canada
jennifer spinney @jspinney19
294 Followers 592 Following 🇨🇦 anthropologist | assist prof at York U-DEM | understanding social dimensions of disaster risk and vulnerability through anthropological lens
Dennis Mersereau @wxdam
10K Followers 4K Following I make it rain and then write about it. 📡 Weather reporter, author, Tom Nook apologist, and aspiring flâneur. He/him. 🏳️🌈 || @wxdam.com on Bluesky.
Billy Pickles @BillyPickles6
327 Followers 434 Following Just another guy, with some cool gigs under his belt. |Storm Chaser | Photographer | Father & Husband | ** Tweets are expressed as my own **
Highways & Hailstones @HighwaysHail
2K Followers 4K Following We are a global community of storm chasers. Our app makes it EZ to stream & document severe weather & our website allows everyone to join in on your adventures!
Billy Strings @BillyStrings
82K Followers 1K Following So Much For Goodbyes out August 28. Preorder now: https://t.co/CivTpa2vVk
Jo @attila_thefun
5K Followers 5K Following To see a candles light, one must take it into the darkness.🕯 🌌🌩🏕📷🍞🍷☕️🇨🇦 Running on caffeine and dread. Fluent in silence and existential crises.
James G. LaDue, CCM @JLaDue
1K Followers 991 Following CCM, Master Instructor: NWS Warning Decision Training Division, past Acting Director: NIST NWIRP, Chair: ASCE WindstormEstimation Standards Committee
Alannah Franks @AlannahFranks
493 Followers 581 Following Meteorologist for @Instant_Weather, Meteorology and Geology Nerd, and License Plate Collector
Okanagan Fire Scanner @Okanaganscan
12K Followers 19 Following Kelowna B.C and beyond Fire watch. Updated daily during fire season
Connor O'Donovan @ConnODonWeather
1K Followers 1K Following Video journalist with the Weather Network based in Calgary ⛈ 🌞 ❄️ 🏔 Formerly with Global Regina & CityNews Edmonton. Not AI.
Tracey Dyck @ABStormChaser
4K Followers 760 Following Director of Storm Chase Canada @StormChaseCA NTP Super-contributor 🌫 https://t.co/3RGqVNWdo6 Chasing the Canadian Prairies 🌪 ⚡️
Auke-Florian @AukeFlorian
6K Followers 880 Following 🌍 Biologist, 🪺 Studying plastic in bird nests, 📚 Author Find me now on BlueSky: https://t.co/eZtfyhFF7N
Ben Chernesky @BenChernesky
2K Followers 440 Following ⛈️ Storm Chaser with Team Dominator Canada 🇨🇦\ UCalgary Geog Student \ ConvectAlert Analytics Founder
David Peterson @DrDavePeterson
554 Followers 269 Following Meteorologist at @USNRL | Expert on wildfire-generated thunderstorms (pyrocumulonimbus) 🔥 | Broad interests in meteorology 🌪⛈❄️ | satellite remote sensing 🛰
Devon Healey @DevonHealey6
90 Followers 135 Following Meteorologist. PhD in Radar Signatures of Severe Weather, UNL 2025. Father and husband. Member of the Church of Jesus Christ of Latter Day Saints.
Jack Hamilton @JackHamiltonWX
111 Followers 203 Following Field Coordinator for @westernuNHP and @westernuCSSL field campaign 🌩️🇨🇦 Hail reports can be sent to @NHP_Reports and follow the team @NHP_field
Jay Lesyk @JayLesykWX
4K Followers 488 Following Jay from Alberta🇨🇦🌪️ ||Meteorologist ||Ball State Alum ||25 ||Dm for licensing
DylanPainchaud-Niemi @DylanPNiemi
299 Followers 263 Following Research Meteorologist @westernuCSSL @westernuNTP⚡☈🌪️ || M. Sc. Atmospheric Science Student - U of Manitoba
Danté Fenolio, Ph.D. @DanteFenolio
6K Followers 714 Following Ph.D Biologist: conservation photographer, caver, canopy biology, deepsea biodiversity, ground water ecology For image use, contact [email protected]
ChasinSpin @ChasinSpin
12K Followers 1K Following REAL SCIENCE! Researcher, and Severe WX Chaser for Team Dominator (and Canada). Designs and launches sensors into Tornadoes. https://t.co/FhJu3qSodK
Lian Kwong @LianKwong
347 Followers 385 Following Biological Oceanographer | DFO Biologist | PhD/MSc UBC EOAS/IOF
HulloThere @jethroreading32
2K Followers 1K Following PhD student at Southampton, studying mesopelagic fish ecology. Occasional writer and amateur baker. Tweets about fish in superlatives. Opinions my own.















