Simon Eng
@simonlameng.bsky.social
Research Meteorologist at Canadian Severe Storms Lab (CSSL), Northern Hail Project (NHP). Opinions are my own.
Reposted by Simon Eng
The CSSL/NTP assisted the US National Weather Service (NWS) with their upgrading of the official rating of the June 2025 Enderlin, ND tornado from EF3 to EF5.
Announced by the NWS today, it’s the first EF5-rated tornado in the US since 2013.
Details here: uwo.ca/ntp/blog/202...
Image B. Emfinger
Announced by the NWS today, it’s the first EF5-rated tornado in the US since 2013.
Details here: uwo.ca/ntp/blog/202...
Image B. Emfinger
October 6, 2025 at 6:16 PM
The CSSL/NTP assisted the US National Weather Service (NWS) with their upgrading of the official rating of the June 2025 Enderlin, ND tornado from EF3 to EF5.
Announced by the NWS today, it’s the first EF5-rated tornado in the US since 2013.
Details here: uwo.ca/ntp/blog/202...
Image B. Emfinger
Announced by the NWS today, it’s the first EF5-rated tornado in the US since 2013.
Details here: uwo.ca/ntp/blog/202...
Image B. Emfinger
Reposted by Simon Eng
Today we have a special blog post on a new NTP tool for AI-assisted satellite review, with the method described by its developer - the NTP's Daniel Butt. The tool is being used experimentally and is already producing results. More on that shortly!
uwo.ca/ntp/blog/202...
uwo.ca/ntp/blog/202...
October 3, 2025 at 3:00 PM
Today we have a special blog post on a new NTP tool for AI-assisted satellite review, with the method described by its developer - the NTP's Daniel Butt. The tool is being used experimentally and is already producing results. More on that shortly!
uwo.ca/ntp/blog/202...
uwo.ca/ntp/blog/202...
Reposted by Simon Eng
The NTP has confirmed four EF2 tornadoes in western Quebec during the late afternoon and evening hours of September 5. In each case there was considerable tree damage.
Full details can be found here:
uwo.ca/ntp/blog/202...
#meteoQC
Full details can be found here:
uwo.ca/ntp/blog/202...
#meteoQC
September 30, 2025 at 7:18 PM
The NTP has confirmed four EF2 tornadoes in western Quebec during the late afternoon and evening hours of September 5. In each case there was considerable tree damage.
Full details can be found here:
uwo.ca/ntp/blog/202...
#meteoQC
Full details can be found here:
uwo.ca/ntp/blog/202...
#meteoQC
Reposted by Simon Eng
**Damage Survey Announcement: Following an extreme rainfall event and resulting flash flooding across SE Manitoba on Sept 11 & 12, a CSSL damage survey team will be conducting an assessment of the event's impacts. Please let us know if you have any rainfall and/or damage reports! #mbstorm @cssl.ca
September 14, 2025 at 5:20 PM
Reposted by Simon Eng
Last post for the big radar conference in #Toronto - from the 3 co-chairs. We did it! With much support from @ametsoc.org and volunteers. Thanks to co-chair Julian Brimelow, and to @shobenase.bsky.social for leading the charge. It’s been a great experience working with the both of you. #AMS41Radar
August 29, 2025 at 4:21 PM
Last post for the big radar conference in #Toronto - from the 3 co-chairs. We did it! With much support from @ametsoc.org and volunteers. Thanks to co-chair Julian Brimelow, and to @shobenase.bsky.social for leading the charge. It’s been a great experience working with the both of you. #AMS41Radar
Reposted by Simon Eng
**Damage Survey Announcement #abstorm: Yesterday (July 27) a major hailstorm tracked from W of Twin Butte, through Cardston, E to the Shanks Lake area. An NHP damage survey team will begin data collection tomorrow. Please forward us any information you may have on this event!
July 28, 2025 at 11:19 PM
**Damage Survey Announcement #abstorm: Yesterday (July 27) a major hailstorm tracked from W of Twin Butte, through Cardston, E to the Shanks Lake area. An NHP damage survey team will begin data collection tomorrow. Please forward us any information you may have on this event!
Reposted by Simon Eng
**Seeking Hail Reports: Calgary was affected by a potentially damaging hailstorm this evening (July 13) between 7:45 & 8:15 PM MT, tracking SE from the NW corner of the city to S of Chestermere. Please send us your hail and hail damage reports, and if you can, save some samples! #abstorm #Calgary
July 14, 2025 at 5:13 AM
Reposted by Simon Eng
**Survey Announcement: The CSSL’s Winnipeg team is conducting a damage survey of hail impacts in the Reston area following a major storm on the evening of July 3rd with radar estimated hail larger than baseballs (see MRMS MESH below). Let us know if you have any information on this storm!
#MBstorm
#MBstorm
July 10, 2025 at 9:13 PM
**Survey Announcement: The CSSL’s Winnipeg team is conducting a damage survey of hail impacts in the Reston area following a major storm on the evening of July 3rd with radar estimated hail larger than baseballs (see MRMS MESH below). Let us know if you have any information on this storm!
#MBstorm
#MBstorm
Reposted by Simon Eng
**Survey Announcement: Yesterday (July 9), NHP Field Ops intercepted a damaging thunderstorm near the communities of Acme & Carbon, AB. A damage survey of the combined impacts of wind & hail in the area will be conducted later today. Let us know if you have any information on this storm! #abstorm
July 10, 2025 at 8:52 PM
**Survey Announcement: Yesterday (July 9), NHP Field Ops intercepted a damaging thunderstorm near the communities of Acme & Carbon, AB. A damage survey of the combined impacts of wind & hail in the area will be conducted later today. Let us know if you have any information on this storm! #abstorm
I don't usually post food photos, but this was a pretty good BLT: thick cut locally sourced bacon, toasted bread with mayo, salt and pepper, and a side of seasoned garlic cloves baked in the oven on the bacon tray.
June 21, 2025 at 2:06 AM
I don't usually post food photos, but this was a pretty good BLT: thick cut locally sourced bacon, toasted bread with mayo, salt and pepper, and a side of seasoned garlic cloves baked in the oven on the bacon tray.
Reposted by Simon Eng
Teams are hitting the road for training out in Boulder! Want to follow along to see where we are in the Plains? Use our #ICECHIP tracker!
icechip.niu.edu/tracker/
icechip.niu.edu/tracker/
May 14, 2025 at 3:05 PM
Teams are hitting the road for training out in Boulder! Want to follow along to see where we are in the Plains? Use our #ICECHIP tracker!
icechip.niu.edu/tracker/
icechip.niu.edu/tracker/
Reposted by Simon Eng
The NHP has been busy preparing for field operations, both at home and abroad! For the #ICECHIP field campaign, the NHP and Western's UMS designed and built 4 platforms which collect and preserve hailstones, capture high-speed video of falling #hail, and measure hail fall speed with a small radar.
May 13, 2025 at 7:59 PM
@jack-hamilton.bsky.social @connellmiller.ca @westernunhp.bsky.social just found important new add-ons for our gear.
Packing for fieldwork. Mustn’t forget the essentials. 🧪⚒️
May 8, 2025 at 8:45 PM
@jack-hamilton.bsky.social @connellmiller.ca @westernunhp.bsky.social just found important new add-ons for our gear.
Reposted by Simon Eng
And there you have it. At least a dozen tornadic supercells in an STP bullseye of 9, smack dab in the center of an SPC High Risk. We can stop complaining now, or rejoice, or just appreciate the NWS.
April 2, 2025 at 11:16 PM
And there you have it. At least a dozen tornadic supercells in an STP bullseye of 9, smack dab in the center of an SPC High Risk. We can stop complaining now, or rejoice, or just appreciate the NWS.
View leaving Toronto earlier this evening, entering the cloud base...
March 25, 2025 at 4:41 AM
View leaving Toronto earlier this evening, entering the cloud base...
Reposted by Simon Eng
Today: A bunch of my federal colleagues are being terminated from their jobs, and there was a misinformation attack on UCAR (which is currently hosting me on my sabbatical).
This sort of day is becoming frighteningly normal.
This sort of day is becoming frighteningly normal.
February 14, 2025 at 4:57 AM
Today: A bunch of my federal colleagues are being terminated from their jobs, and there was a misinformation attack on UCAR (which is currently hosting me on my sabbatical).
This sort of day is becoming frighteningly normal.
This sort of day is becoming frighteningly normal.
Reposted by Simon Eng
Permafrost thaw will cause billions of dollars of damage to Arctic infrastructure. Roads (like this roller coaster due to frost heave), buildings, runways, coastlines. Delay at our own peril.
December 5, 2024 at 5:13 PM
Permafrost thaw will cause billions of dollars of damage to Arctic infrastructure. Roads (like this roller coaster due to frost heave), buildings, runways, coastlines. Delay at our own peril.
Reposted by Simon Eng
Hey Canadian storm and weather friends - do you ever look at the FOCN product to see the forecast discussion for any significant weather day? If you do, look at this note. The MSC is considering discontinuing the issuing of this discussion. Thoughts? Email: focn45@ec.gc.ca
Repost for visibility?
Repost for visibility?
November 26, 2024 at 3:05 AM
Hey Canadian storm and weather friends - do you ever look at the FOCN product to see the forecast discussion for any significant weather day? If you do, look at this note. The MSC is considering discontinuing the issuing of this discussion. Thoughts? Email: focn45@ec.gc.ca
Repost for visibility?
Repost for visibility?
Reposted by Simon Eng
Always disappointing to see #AI captures get such traction when the real thing which takes much more time/effort is seldom as rewarded.
If it looks #fake, it probably is… think twice before liking & sharing a computer’s output and follow, share, & like content by live-people creators!
If it looks #fake, it probably is… think twice before liking & sharing a computer’s output and follow, share, & like content by live-people creators!
November 24, 2024 at 11:46 PM