Northern Tornadoes Project 🇨🇦 @westernuNTP Twitter profile

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Northern Tornadoes Project 🇨🇦

3 months

NTP's 2023 Annual Report is now published and live! It can be found at (along with our past reports). Have a look at what NTP found, and was able to achieve, over the past year. Cover photo (July 1 Didsbury, AB EF4 tornado) courtesy of @DevonHealey6 .

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Northern Tornadoes Project 🇨🇦

@westernuNTP

10 months

An NTP investigation, in collaboration with @ECCCWeatherAB , has concluded that the worst damage from the July 1st Didsbury tornado is rated EF4 on the Enhanced Fujita scale, making it the highest-rated AB tornado since Edmonton in 1987. Full details: …

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

#OTD in 1987, the Edmonton F4 tornado occurred. To this day, this remains the strongest documented tornado to hit the province, leaving a path of destruction ~31 km long and up to 1300 m wide in some areas. It killed 27 people and injured 300, destroying more than 300 home. #ABwx

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Here's what our NTP event map for the May 21st #derecho looks like right now - a mix of many damage reports and points we've surveyed or analyzed. It's probably the busiest event map we've ever put together. NTP teams will be out again this coming week. Watch here for updates...

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

An NTP storm survey team investigated damage in southern Ottawa following the May 21 derecho. Analysis of the data reveals that a particularly intense downburst, not a tornado, was responsible for the damage there, with maximum wind speeds reaching 190 km/h (EF2). #ONStorm 1/2

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Northern Tornadoes Project 🇨🇦

@westernuNTP

10 months

Two NTP survey teams will be investigating the damage caused by a powerful tornado in the Didsbury, AB area yesterday. An NTP team captured this image of the ground scour track going off into the distance last evening. They are coordinating with @ECCCWeatherAB who are also on…

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Yesterday's stunning derecho through southern ON and southern QC sadly claimed the lives of 5 people out during a holiday weekend, and injured others. There have been countless reports of damage. Two NTP teams will investigate areas today where a tornado may have occurred. 1/3

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

An NTP team investigated the damage at Uxbridge, ON after Saturday's devastating derecho. The preliminary result is that a long, narrow path of enhanced damage, up to EF2 in intensity, was identified - length 4.26 km, max width 260 m, max speed 195 km/h, time near 1:15 ET. 1/2

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

NTP meteorologists have identified an area for likely tornado development later today in our experimental outlook. See orange area on map below. Closely monitor EC watches and warnings in and near this area. A Chance Tornado threat exists for the wider area in yellow. #ONStorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

NTP confirmed an EF2 tornado at Lake Travers, ON, from the Jul 15th storms. Here's a great aerial shot showing its path through the forest, courtesy @tjfarncombe . An aircraft with a downward-pointing 5-cm imager will also fly this track + Dwight & Sunbeam Lake tracks. #onstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

NTP meteorologists are expecting sufficient ingredients to come together in parts on ern ON and srn QC tomorrow for a 'Likely Tornado' threat, as shown on our *experimental* Day 2 Outlook product. A Day 1 update is possible tomorrow morning so stay tuned... #onwx #qcwx

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Two NTP teams will travel to the region N of Belleville, ON tomorrow to conduct ground / drone surveys in the Havelock / Hwy 7 / Kaladar area. It appears one or more tornadoes have caused extensive damage there. Please send reports to @NTP_Reports or ntp @uwo .ca. #ONStorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

NTP teams surveyed 2 locations in ON yesterday that had localized swaths of enhanced damage: Uxbridge and southern Ottawa. Given the complexity of the damage due to the derecho, it will require thorough analysis in order to classify / rate the event. Work continues. #ONStorm 1/2

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Northern Tornadoes Project 🇨🇦

@westernuNTP

10 months

Lots going on due to the severe storms in the Ottawa and Montreal areas yesterday. Here's a status update: - confirmed damaging tornado at Barrhaven area of Ottawa, ON with an NTP team set to arrive around 10 am to begin a damage survey there - confirmed tornado at Mirabel, QC…

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Northern Tornadoes Project 🇨🇦

@westernuNTP

11 months

A funnel cloud and related damage were reported at Talbotville between London and St. Thomas, ON this evening. A preliminary NTP damage survey identified a narrow path of EF0 damage (building, trees). An NTP team will investigate this tornado event further tomorrow. #ONStorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

A tornado was observed over Lake Huron earlier today (see ). It appears it came ashore causing damage to barns, trees, etc. Two NTP teams will survey this and other damage tomorrow. Please send additional reports to @NTP_Reports or ntp @uwo .ca. #ONStorm

MaryAnn Williams

@Stormymaryann

3 years

Port Albert ON a few minutes ago! #ONStorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

4 years

The @westernuNTP team surveyed the tornado damage in the Belmont, ON area today. Preliminary results: max winds 150 km/h (EF1), path length 18 km, max path width 250 m. Tomorrow the team will investigate the Glencoe, ON tornado damage. Data also being collected for other events.

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Northern Tornadoes Project 🇨🇦

@westernuNTP

10 months

The NTP damage survey and analysis for the Barrhaven area of Ottawa has wrapped up and it was a complicated one: two tornadoes, with the 2nd crossing the path of the 1st. We still have some analysis to do so lengths/widths are preliminary. Details here: …

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

NTP has released results from its investigation of the extensive July 24th #ONstorm damage in eastern Ontario. The damage - rated up to EF2 - was caused by one supercell tornado with a 55.8 km length and 1420 m max width. Full details at the NTP blog:

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Two NTP ground/drone survey teams have been been busy since yesterday gathering data along the extensive damage swath in eastern ON between Havelock & Kaladar. So far, one tornado with a preliminary rating of EF1 has been confirmed. Here are some images from their work. #ONStorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

After further analysis, NTP has upgraded the length of the May 21st #Uxbridge , ON EF2 #tornado from just over 4 km to 16 km. The map below shows the revised path length (blue line). More details can be found at the NTP blog: #ONStorm #derecho

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

A preliminary map of the worst-affected area on May 21 is shown below (green pin EF1, yellow pin EF2). However, intermittent intense damage along a path ~5 km wide continues ENE at least as far as Plantagenet. Additional details on that damage will be forthcoming. #ONStorm 2/2

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Northern Tornadoes Project 🇨🇦

@westernuNTP

10 months

An NTP survey team will leave Western @London later this afternoon to investigate this damaging tornado in Ottawa today, as well as damage from any other tornadoes that may have occurred with this potent storm system. Damage reports should be sent to ECCC if real-time, otherwise…

Anmol Zakhmi

@zanmol

10 months

Tornado captured in Barrhaven area, Ottawa @CityNewsOttawa

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Northern Tornadoes Project 🇨🇦

@westernuNTP

10 months

NTP wind impacts researcher Dr. Connell Miller, lead surveyor for the Didsbury, AB tornado, explains how this tornado was stronger than 95% of Canadian tornadoes. Full details on the tornado will be released later this morning. #ABstorm

Destructive Alberta tornado stronger than 95% that touch down in Canada, researcher says | CBC News

Crews are working to determine the intensity of the tornado that touched down north of Calgary on Saturday, destroying a handful of homes and leaving others damaged.

www.cbc.ca

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

A damage survey in Georgetown by @westernuNTP , based on initial info from @StormhunterTWN , has turned up Ontario's 41st tornado of 2020. Occurred 1445 EST on 15 Nov, max winds 135 km/h (EF1), length 3.7 km, max width 360 m, mainly tree damage but some light roof damage #onstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

9 months

Following a damage survey this afternoon, NTP has determined that a tornado did develop northeast of Caledonia, ON this morning, causing EF0 tree damage along a 5 km path. Details at Other potential tornadoes from today's storms are being investigated.…

EF0 tornado at Caledonia ON

An NTP investigation has determined that a tornado caused EF0 tree damage near Caledonia, ON on Aug 12

uwo.ca

James⚡️

@j_gray00

9 months

Funnel in Caledonia. @stormwx1 @StormhunterTWN @ECCCWeatherON #ONStorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

NTP has confirmed two EF1 tornadoes that occurred along the leading edge of the May 21st #derecho as it moved through London, ON. Details at the NTP blog: We continue to follow up on numerous reports of significant damage in southern Ontario. #ONStorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

4 years

The @westernuNTP storm survey team confirms that a brief tornado caused a narrow path of damage in the Strabane area of Hamilton, ON at 4:30 PM yesterday. Outbuilding destroyed, barn roof shifted/damaged, trees snapped, truck overturned. Max wind of 150 km/h, rated EF1. #ONstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

11 months

One year ago today, a devastating derecho affected southern parts of Ontario and Quebec. The Northern Tornadoes Project undertook an extensive investigation of this historic event that continues today. #onstorm #meteoqc 1/4

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

It's #EmergencyPreparednessWeek and Canada's next tornado season is about to begin. A good time to reveal a new undertaking from NTP - a preliminary assessment of tornado warning performance in Canada. Bottom line: needs improvement. See the NTP blog at

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Northern Tornadoes Project 🇨🇦

@westernuNTP

11 months

NTP investigation, in coordination with @ECCCWeatherAB , has resulted in the preliminary confirmation of 10 EF0 tornadoes from yesterday's outbreak in southern AB. More details at the NTP blog: #ABStorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

#OTD in 2007, Canada's only F5 tornado occurred near Elie, MB. Video showed a house being carried into the air and disintegrating. Amazingly, there were no serious injuries or fatalities. Below is the iconic photo of the tornado, taken by @justinhobson85 (used with permission).

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Northern Tornadoes Project 🇨🇦

@westernuNTP

10 months

The Northern Tornadoes Project would like to welcome aboard our latest 'Super-Contributor' Tracey Dyck ( @ABStormChaser ). A stylish NTP ball cap will soon be on its way west. We hope to see many reports from her in the future! Interested in becoming an NTP SuperC? See below...

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

An NTP survey team is headed to Barrie this evening, and will investigate reports in Udora/Little Brittain tomorrow. Our thoughts are with those impacted in these areas and hoping for a quick recovery for those injured. Reports can be sent to @NTP_Reports or ntp @uwo .ca.

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Northern Tornadoes Project 🇨🇦

@westernuNTP

9 months

An NTP ground/drone survey team has completed their preliminary assessment of tornado damage in southern Ottawa from storms on August 3rd. The tornado that impacted the Findlay Creek area was rated EF0 (max. wind speed 130 km/h). Thankfully no injuries reported.

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Are you an undergraduate or senior high school student looking for exciting summer employment in 2022? Interested in hail, tornadoes and summer storms? We are hiring summer interns! You can get all of the details and apply at Deadline is Fri Jan 28.

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Northern Tornadoes Project 🇨🇦

@westernuNTP

9 months

NTP has confirmed six damaging wind events from the storms in southwestern Ontario on July 20, including 2 tornadoes and 4 downbursts. Details at the NTP blog: More to come from this day. #ONstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

4 months

Given NTP has now published all 86 known tornadoes for 2023 in Canada, we can say a few things about the season. First, there were only 5 EF2+ tornadoes recorded, with Didsbury, AB rated at EF4 - only the second EF4 in the NTP era (2017-2023). No EF2+ in SK or southern ON.

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Ultra-rare tornado event in Vancouver on Nov 6th - thankfully just EF0 damage. Last time a tornado hit Vancouver - July 25, 1976 (F0). Last time a tornado hit the Vancouver area - March 10, 1991 (F0, Pitt Meadows). All past tornadoes in the area occurred March-July. #BCStorm

ECCC Weather British Columbia

@ECCCWeatherBC

2 years

It's confirmed! An EF0 tornado occurred at 5:10pm PDT on Nov 6th, 2021 near the UBC Golf Club. Read more details here #BCSTORM

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

The two locations where NTP will conduct damage surveys today are Uxbridge and southern Ottawa, both in Ontario. It is anticipated that more locations with potential tornado damage will be visited tomorrow, and possibly beyond. 2/3 #ONStorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

NTP has been assembling & analyzing all available data related to the devastating May 21st derecho through southern ON / QC. In fact, we continue to receive reports more than a month after the event. We now have results to share - still preliminary but a much fuller picture. 1/3

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Northern Tornadoes Project 🇨🇦

@westernuNTP

11 months

The 1st recorded Canadian tornado of 2023 occurred yesterday SE of Regina, SK. Photos/video provided sufficient evidence to confirm. The tornado damaged a farm near Rowatt. An NTP team will conduct a damage survey tomorrow. Other damage reports can be sent to ntp @uwo .ca. #skstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

10 months

Update from Alberta - the NTP survey teams have completed their work in the field. We are working on the analysis today, in collaboration with @ECCCWeatherAB , and will release full details tomorrow. In the meantime, a couple of good articles on the tornado that demonstrate the…

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

Canada's first supercell / EF2 tornadoes of the year from the evening of May 25th. Using hi-res satellite imagery, the preliminary NTP assessment is one EF2 near Chapleau, ON and three other EF2s west of Val-d'Or, QC. Event details are shown below. #onstorm #meteoqc (1/2)

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Northern Tornadoes Project 🇨🇦

@westernuNTP

4 years

NTP crews were out in 2 locations today. An EF0 tornado was confirmed in the Belmont area with prelim length 9.3 km and max wind 125 km/h. An EF1 tornado was confirmed north of Lucan with prelim length 2.4 km and max wind 135 km/h (a larger EF0 downburst also found). #onstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

#OTD in 2007, Canada's only F5 tornado occurred near Elie, MB. Video showed a house being carried into the air and disintegrating. Amazingly, there were no serious injuries or fatalities. Below is the iconic photo of the tornado, taken by @justinhobson85 (used with permission).

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Northern Tornadoes Project 🇨🇦

@westernuNTP

4 years

The @westernuNTP team has confirmed an EF0 tornado in Point Clark, ON, from Friday at 10:15 PM. Max wind speed 130 km/h, path length 300 m, path width 80 m. The tornado came off Lake Huron sending trees falling in multiple directions, some on top of houses (see images). #onstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

NTP, in collaboration with @environmentca , has confirmed an EF2 tornado and an EF1 downburst in the Medicine Hat area of Alberta. Details at the NTP blog: This drone photo from the survey shows a home that took a direct hit from the EF2 tornado. #ABStorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

10 months

An unfortunate Canada Day near Didsbury, AB. Looks like a major tornado hit there this afternoon. Still trying to get details, but an NTP survey team will fly out to be there in the morning. Damage reports can be sent to ntp @uwo .ca or @NTP_Reports , or our webform at…

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Northern Tornadoes Project 🇨🇦

@westernuNTP

4 years

Update 1 - Another tornado & downburst from Jul 19. Using data gathered by @justinmweather , @westernuNTP is able to confirm an EF1 tornado in the Blyth area (135 km/h, 6.7 km long, 50 m wide, see photos) & an EF0 downburst in the Brussels/Cranbrook area (5 km x 11 km). #onstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Next, we have generated maps with EF-scale contours of the derecho damage. The areas affected include OH, MI, ON, QC, VT, NH and ME, with all EF1+ damage in ON & QC. All 4 tornadoes were in ON (2 EF1, 2 EF2). Details at the NTP blog: #ONstorm #meteoQC

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

I'd like you to meet my new little sister - welcome to the world Northern Hail Project! Thanks to @weathernetwork for the birth announcement :-) #NHP #hail #Alberta #Canada

The Weather Network

@weathernetwork

2 years

The success of Western University and ImpactWX's @westernuNTP has paved the way for the just-announced Northern Hail Project ( #NHP ), an initiative that will be in the field this upcoming storm season to document the frozen phenomenon.

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

We are continuing to analyze / investigate storm damage from May 21 in these areas: - Ottawa (analysis) - Rawdon, QC area (ground/drone survey) - London, ON area (ground/drone surveys) We are receiving reports of significant damage in other locations as well. #ONStorm #meteoQC

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Northern Tornadoes Project 🇨🇦

@westernuNTP

4 months

After an extensive investigation, NTP has confirmed that an EF0 fire-generated tornado occurred on Aug 18 at Gun Lake, BC. #BCstorm Details here: That is the last new tornado for 2023 (unless we discover more). All the best over the holidays from NTP!

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

NTP damage surveys have documented 5 different tornadoes generated by the storms of July 15th in southern Ontario, all of them having maximum wind speeds in the EF2 range. See details below. #ONStorm (1/2)

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Well 2021, that's a wrap - at least as far as tornadoes go. Our last NTP blog entry for the year provides some stats for the 💯tornadoes we documented across Canada this year. All the best over the holidays - from Team NTP! ⛄️

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

An NTP team completed a survey yesterday near Cranbrook ON, documenting a narrow path of damage to trees and crops where video of the weak tornado was captured on August 1st. Damaged assessed as EF0 tornado – length 3.30 km, max width 120 m, max speed 115 km/h. #ONstorm 1/2

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

. @westernuNTP meteorologists have identified a tornado threat today for southern parts of E ON and S QC – particularly where supercell thunderstorm development is expected this afternoon / evening. Monitor watches / warnings issued by @environmentca . #onstorm #meteoqc #qcstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Past Vancouver tornadoes 1956 05 03 F1, 1962 07 01 F0, 1976 07 25 F0 Past Vancouver-area tornadoes 1954 03 25 F1 (New Westminster), 1964 07 01 F1 (Steveston), 1988 05 01 F0 (Port Moody area), 1991 03 10 F0 (Pitt Meadows) Upshot: it's been a long time since the last tornado.

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Northern Tornadoes Project 🇨🇦

@westernuNTP

11 months

An NTP survey team investigated the EF0 tornado damage at Talbotville, ON from last night's storm there. A path length of 2440 m and max width of 40 m were found using drone imagery. Details at the NTP blog () and at #ONstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

8 months

An NTP investigation has concluded that an EF1 tornado caused damage in Tecumseh and Lakeshore, ON during the evening of Aug 24. No injuries were reported. Full details at the NTP blog: Interestingly, this tornado and the Windsor EF0 tornado to the west…

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

Super-Contributors are given a special NTP link to add to their social media profiles, and will receive NTP swag as thanks for their efforts. So here we go: NTP recognizes @StormhunterTWN and @KyleTWN from NTP partner @weathernetwork as our first NTP Super-Contributors! 2/3

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Northern Tornadoes Project 🇨🇦

@westernuNTP

4 years

Information update on Scarth, MB Tornado (Aug 7): Analysis of satellite imagery - Preliminary track length = 9.35 km Max. width = 740 m Imagery captured by @Planetlabs satellites yesterday shows visible damage caused by tornado as it crossed Hwy 83, just northwest of Scarth.

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

We have a special treat for NTP followers. There will be a virtual premiere screening of the new tornado drama '13 Minutes' on Oct 28 at 7 pm EDT followed by a Q&A with writer, producer, director and more. The first 25 people to email ntpmedia @uwo .ca will receive passes. Go! :-)

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Update re NTP's ongoing analysis of the May 21st derecho - after much additional analysis, the Ottawa-area EF2 downburst zone has been extended to the ENE, and now includes the communities of Navan and Sarsfield. #ONStorm Full details at the NTP blog:

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

To cap off a strange weather year, a supercell tornado developed over the Strait of Georgia west of Vancouver Airport near 5 pm local today. It appears it may have come ashore at the UBC campus. Reports of trees and wires down in that area. @westernuNTP is following up. #BCStorm

Chris Vagasky ⚡️

@COweatherman

2 years

This is amazing. #BCstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

Beginning in 2021, the Northern Tornadoes Project will be including all mature waterspouts over Canadian waters in our tornado counts. Historically, waterspouts that occur entirely over water have been the domain of marine forecasting programs (and of course @ICWR ). 1/3

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Northern Tornadoes Project 🇨🇦

@westernuNTP

9 months

A mid-August update on the national tornado count. This graph shows the cumulative tornado counts for 2023 and past years - since the start of the the Northern Tornadoes Project in 2017. At 61 tornadoes, 2023 is considerably lower than 2022 and 2021 at this point, but similar…

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Northern Tornadoes Project 🇨🇦

@westernuNTP

4 years

The drone results are in! The damage at Sturgeon Point, ON, on Jun 23 was caused by an EF1 tornado (max wind 145 km/h) with length over land 5 km and max width 120 m. In addition to damaging a dock, the tornado ripped off half of a barn roof and tossed it ~100 m. #onstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

A fast-moving line of storms overtook a smaller, slower moving line resulting in the development of an embedded supercell over Lake Huron. The supercell generated a multi-vortex tornado, plus several weaker 'satellite' tornadoes and downbursts, as it came onshore. #ONStorm 2/n

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

Please send reports of damage that may be due to a tornado to @NTP_Reports or email ntp @uwo .ca. You can also visit the Report a Tornado page at our website: . Please also take care when clearing damaged trees - it can be dangerous work. #ONStorm #meteoQC

Report a Tornado

Western University, in vibrant London, Ontario, delivers an academic and student experience second to none.

uwo.ca

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Northern Tornadoes Project 🇨🇦

@westernuNTP

2 years

With yesterday's ultra-rare Nov supercell tornado in Vancouver, BC, NTP's tornadoes affecting land stretch from the Pacific to the Atlantic in 2021 - total of 72 (map). Adding 2021 tornadoes occurring entirely over water, count goes up to 90. Impressive for a quiet year N of 49N.

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Northern Tornadoes Project 🇨🇦

@westernuNTP

4 years

Final update today - the @westernuNTP survey team confirmed that a tornado caused EF1 damage at Gads Hill on Jul 19. Max wind 150 km/h, length 4.2 km, max width 400 m. Damage to a farm and trees. Tomorrow morning the team will investigate damage in the Thedford area. #onstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

The NTP survey team spent most of the day tracking down damage from last evening's Chatsworth-area tornado. So far, the damage can be rated at least high-end EF1. Length / max width are near 13.5 km / 400 m, respectively. Will go over drone imagery in detail tomorrow. #onstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

3 years

Our @western Annual Report 2020 is out: A highlight reel: Amidst a pandemic that brought the world to a standstill, we still managed to conduct 409 investigations & verify 77 tornadoes across Canada, increasing the 2020 tornado count by 166%. 1/8

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@westernuNTP

2 years

NTP investigations of the severe storms of June 16th in ON & QC have resulted in the confirmation of two supercell tornadoes in ON - an EF0 at Brooklin and an EF0-Default at Carleton Place. Details at the NTP Blog: #ONstorm

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@westernuNTP

9 months

An NTP storm survey team left Ottawa yesterday and found damage in a few locations in ern ON / srn QC (blue pins). Today they will complete work in QC and head home to start analysis. Another team will investigate reported damage in SW ON from storms on Jul 14. #meteoQC #ONstorm

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Northern Tornadoes Project 🇨🇦

@westernuNTP

9 months

Results from the NTP surveys of damage caused by the July 13 storms in eastern Ontario are now complete: 2 new EF0 tornadoes (Embrun and Fournier). This is in addition to the two EF1 tornadoes at Barrhaven (Ottawa) that day (all shown below). Full details at the NTP blog:…

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@westernuNTP

2 years

(1/2) On this day 37 years ago, a tornado outbreak impacted Southern Ontario: - 14 tornadoes occurred - Two F4 tornadoes - Hundreds injured and 12 people killed - Total estimated property damage is $152M dollars (unadjusted 1985) from this outbreak #ONwx Image: @weathernetwork

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@westernuNTP

2 years

There is additional damage roughly in line with this tornado farther to the east of Uxbridge, and the length of the tornado may be extended after further analysis. The worst damage was to the roofs of two apartment buildings (one shown below). #ONStorm 2/2

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@westernuNTP

4 years

Update: @westernuNTP has identified 3 new tornadoes from the June 10th storms in southern ON - locations mapped on dashboard at . All occurred along the leading edge of bow segments (QLCS). We continue to investigate other reports from this date. #ONstorm

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@westernuNTP

3 years

News on NTP's investigation of reports & damage from Saturday's #ONstorm in SW ON. 1) A 2nd tornado is confirmed based on photos/video. It developed N of Goderich and moved NE between Lucknow and Ripley. No damage reported (yet) so rating is EF0-Default. Photo by @StormhunterTWN

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@westernuNTP

4 years

Some good news - the Northern Tornadoes Project 2018/2019 Report is now available. Every NTP-verified #tornado across Canada, and more. You can find a link on the About page at , or just click on the link here: @westernuEng #NTP

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@westernuNTP

3 years

An NTP survey team began a damage survey in south Barrie last evening, working collaboratively with an ECCC team. The results to this point are included in this ECCC summary (below). The damage was assessed at EF2 (DI=FR12, DOD=7, max wind 210 km/h). Will be continuing today.

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@westernuNTP

2 years

NTP has confirmed three new tornadoes - EF2 on May 30 in NW ON, EF1 on June 6 in srn AB, and EF0 on June 10 in srn SK. Details at the NTP blog: Kudos to @environmentca & @Instant_Weather for assistance. #ONstorm #ABstorm #SKstorm

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@westernuNTP

3 years

NTP has confirmed four new tornadoes for southern Ontario - 3 non-supercell EF0s entirely over Lake Huron on the evening of Sept 5th, and 1 EF0 from a supercell that moved from Lake Huron onshore north of Goderich near 4 am the next day (unusual but can clearly happen). #ONStorm

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@westernuNTP

3 years

Welcome to our growing team, @IWeatherCanada ! #Innovation

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@westernuNTP

2 years

NTP has received a report that a tornado passed just south of Exeter radar with the line of storms earlier this afternoon. A ground/drone survey team will investigate tomorrow morning. Please send any additional tornado/damage reports to @NTP_Reports or ntp @uwo .ca. #ONStorm

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@westernuNTP

3 years

NTP conducted damage surveys yesterday in SW ON following the 'bow echo' storm the night before. A survey in the Parkhill, ON area found evidence for an EF1 tornado (structural/tree damage). A weak downburst was identified near the end of the track. See summary below. #ONStorm

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@westernuNTP

2 years

#OTD 28 years ago, an F4 tornado occurred near Birtle, MB. The 🌪️ travelled for 29km and injured 2 people. An entire house was lifted off its foundation and landed on its roof 250 ft away. Farm equipment was tossed about 300m. This remains the only 1 of 2 F4/EF4 🌪across #MBwx

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@westernuNTP

9 months

After causing tornado havoc in Chicago and part of Lower Michigan on July 12, an intense storm system redeveloped over eastern ON and southern QC on July 13 - causing 6 tornadoes and 5 downbursts. Thankfully all EF0/EF1. You can plot the map below and click on the icons for…

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@westernuNTP

4 years

Final update today - the @westernuNTP survey team confirmed an EF1 tornado in the Lambton Shores area (ENE of Sarnia) from Jul 19. Max wind speed 155 km/h, path length 15.4 km, max path width 200 m. This brings the # of tornadoes for this outbreak to 6 (+ 1 waterspout) #onstorm .

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@westernuNTP

11 months

An NTP survey team has investigated the damage from Saturday's tornado near Regina, SK. The only significant damage was to a well-constructed farm building - rated at max 150 km/h / EF1. Debris was blown up to 2.5 km to the NNE. Full details at #SKstorm

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@westernuNTP

11 months

(1/2) OTD 38 years ago, a tornado outbreak impacted Southern Ontario: - 14 tornadoes occurred - Two F4 tornadoes - Hundreds injured and 12 people killed - Total estimated property damage is $152M dollars (unadjusted 1985) from this outbreak #ONwx Image: @weathernetwork

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@westernuNTP

9 months

New Ontario tornadoes, and one important upgrade. Continued NTP investigation has resulted in the confirmation of 3 new EF1 tornadoes and the upgrade of one tornado to EF2 - all from Jul 9 in NW ON. There was also a tornado near Kaladar, in southern ON, from the storms of Aug…

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@westernuNTP

1 year

A systematic review of hi-res satellite imagery has uncovered 17 previously undocumented tornadoes from 2021, from western SK to southwestern QC. EF1/EF2 forest damage in all cases. Full details at the NTP blog here: #skstorm #mbstorm #onstorm #meteoqc

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@westernuNTP

4 years

13 years ago, an F5 struck Elie, #Manitoba . No one was injured or killed. @environmentca adopted EF scale in 2013, making tornado Canada's first & last confirmed F5. Meteorologist @justinhobson85 's eyewitness account & pictures: @weathernetwork @CanGeo

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@westernuNTP

3 years

Two NTP teams collected ground survey data for the Kingsbridge to Kenilworth line yesterday (~90 km). We'll be analyzing that data today, with Kingsbridge to Lucknow being quite complex. An NTP team is out again today surveying damage near Southampton and near Goderich #ONStorm

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@westernuNTP

9 months

NTP storm surveys have concluded that in SW Ontario on July 26 an EF1 tornado hit Blenheim while an EF1 downburst caused widespread damage in the Harrow and Kingsville areas, also rated at EF1. Details here: #ONstorm

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@westernuNTP

3 years

NTP has received reports of damage in the Penetanguishene area, close to where a supercell with strong low-level rotation moved through yesterday. An NTP ground / drone survey team is on its way this morning. Additional reports can be sent to @NTP_Reports or ntp @uwo .ca. #ONStorm

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@westernuNTP

3 years

An NTP survey team discovered weak tree damage caused by the tornado captured on video near the London Int’l Airport on August 10, 2021. Preliminary EF0 rating with estimated max. wind speed of 115 km/h - track details to be confirmed following full review of survey results.

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