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Severe Weather 2026

More supercells and tornado warnings going up over Saskatchewan some pretty high STP over Saskatchewan right now of 6 from what I can see on HRRR although this doesn't extend into northern/central Sask from what I can see... but can't rule out a strong tornado from these cells.
 
Not a rotation signature passing just outside my door minutes ago.....
 

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Damage coming in from the earlier Tulliby Lake tornado in Alberta we may have another EF4 candidate this year



Also lots of other tornadoes being reported in Saskatchewan today. This and yesterday may actually end up being the most profilic tornado outbreak in Canadian history? I believe the largest 1 day is 22. But this might be the largest overall? Anyone have statistics on this?
 
Interesting:

TUESDAY/DAY 4 -- NEW ENGLAND

MULTIPLE ENSEMBLE SYSTEMS CONTINUE TO SUPPORT A FAVORABLE SEVERE
WEATHER ENVIRONMENT BEING IN PLACE ACROSS NEW ENGLAND ON TUESDAY.
STRONG DIURNAL HEATING AND SOUTHWESTERLY SURFACE FLOW SHOULD ALLOW
SURFACE TEMPERATURES TO WARM INTO THE MID-80FS TO PERHAPS LOW-90FS
BY LATE AFTERNOON AHEAD OF A SEASONABLY STRONG SURFACE COLD FRONT.
AHEAD OF THE COLD FRONT, SURFACE DEWPOINT TEMPERATURES SHOULD RISE
INTO THE 60FS TO PERHAPS 70FS, LEADING TO MUCAPE BETWEEN 1000-2000
J/KG. CURRENT THINKING IS THAT THUNDERSTORMS WILL DEVELOP ALONG AND
AHEAD OF THE SURFACE COLD FRONT DURING THE AFTERNOON ACROSS QUEBEC
AND MOVE INTO NEW ENGLAND DURING THE LATE AFTERNOON BEFORE
DISSIPATING OVERNIGHT. STRONG VERTICAL SHEAR IN EXCESS OF 50 KNOTS
WILL COMBINE WITH STRONG INSTABILITY TO SUPPORT SEVERE
THUNDERSTORMS. THE MOST PROBABLE SCENARIO IS FOR ONE OR MORE BROKEN
LINES OF STORMS TO MOVE ACROSS THE REGION, WITH PERHAPS A FEW
EMBEDDED SUPERCELLS. ALL SEVERE HAZARDS SEEM POSSIBLE AT THIS TIME.
 
SPC's outlook the last couple days has been focused on the mid-Atlantic for Friday 7/17, but the GFS has consistently had a region of enhanced EHI over the upper Midwest for that timeframe.

Forecast sounding from the latest run, along the warm front in southern WI. Of course at this range and especially with it being summer, this can and will change.

gfs_2026071200_141_43.50--89.25.png
 
Also, key note that the HRRR legitimately convects in that region of 10+ STP. And the soundings are genuinely the most high end I think I've ever seen for Canada. However, i am typically a finicky day with SE moving days because storms can overconvect and just become a propagating mess. A violent tornado is conditionally possible, and even if mode goes messy, still a evident significant tornado threat. I am heavily intrigued into how this plays out.
 

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Damage coming in from the earlier Tulliby Lake tornado in Alberta we may have another EF4 candidate this year



Also lots of other tornadoes being reported in Saskatchewan today. This and yesterday may actually end up being the most profilic tornado outbreak in Canadian history? I believe the largest 1 day is 22. But this might be the largest overall? Anyone have statistics on this?

On long range models, this period was surprisingly potent and evident so I'm not surprised that we've seen multiple significant tornadoes in Alberta and Sask. I did mention last night on my writeup a while back but I was a bit laid back with the wording. Still has been a insane period
 
Also, key note that the HRRR legitimately convects in that region of 10+ STP. And the soundings are genuinely the most high end I think I've ever seen for Canada. However, i am typically a finicky day with SE moving days because storms can overconvect and just become a propagating mess. A violent tornado is conditionally possible, and even if mode goes messy, still a evident significant tornado threat. I am heavily intrigued into how this plays out.
Well the thing with this area is that this is extremely unpopulated as this is the middle of the Canadian shield where almost no one lives. Any validation of tornadoes here will most likely have to be done by satellite unless the tornado happens to be very close to the Trans-Canada highway. So probably as good a place as any for violent tornadoes to occur because it is extremely unlikely they will hit anything. The outbreak on Tuesday from Quebec-New Brunswick is probably more concerning as if those storms go off earlier the chance of damaging tornadoes in populated areas of Quebec are high as well as the Saint John River valley and Maine/NB is definitely an area where the public doesn't have a lot of experience with tornadoes nor is there any kind of tornado warning system.
 
Well the thing with this area is that this is extremely unpopulated as this is the middle of the Canadian shield where almost no one lives. Any validation of tornadoes here will most likely have to be done by satellite unless the tornado happens to be very close to the Trans-Canada highway. So probably as good a place as any for violent tornadoes to occur because it is extremely unlikely they will hit anything. The outbreak on Tuesday from Quebec-New Brunswick is probably more concerning as if those storms go off earlier the chance of damaging tornadoes in populated areas of Quebec are high as well as the Saint John River valley and Maine/NB is definitely an area where the public doesn't have a lot of experience with tornadoes nor is there any kind of tornado warning system.
That's fair.

I'm not sold on a "outbreak" yet on Tuesday in that area but it is a interesting setup. I think a isolated tornado threat, wind and hail. The advection of a EML is the most key thing to Tuesday. I do expect leftovers from Monday to perhaps act as morning convection.
 
That's fair.

I'm not sold on a "outbreak" yet on Tuesday in that area but it is a interesting setup. I think a isolated tornado threat, wind and hail. The advection of a EML is the most key thing to Tuesday. I do expect leftovers from Monday to perhaps act as morning convection.
You're right, I didn't mean to imply a guaranteed outbreak and should've used the term risk instead.
 
Someone got drone footage of the path of Tulliby Lake, Alberta tornado very, very severe forest damage, also looks like there may be a spot where some of the top soil was removed early in the footage. Also looks like it threw some tanks or something before taking a house completely off it's foundation. Definitely an EF4 candidate from what I'm seeing:



Also some heavy oil tanks appear to have been taken out of the ground. Very curious to see what the NTP thinks of this damage.

 
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