Matt Grinter

Meteorologist @AvivaCanada

[Matt Grinter @matt_grinter]

@scottdkehler Thanks for all the reports between you and Matt!

[Matt Grinter @matt_grinter]

@NatePower @WxFront Polygon alerts aren't being issued by ECCC yet. The start date of June 2 was cancelled and there isn't a known time when they will begin.

[Matt Grinter @matt_grinter]

@MisheylaIwasiuk Unfortunately, marine tornado alerts extend a distance inland, so marine and land tornado alerts overlap. 😔🫠🤔

[Matt Grinter @matt_grinter]

@BadWeatherKyle I'm glad temperatures drop back down to limit the amount of snowmelt going into the system during the rain event. There's already been a good amount added this week due to the heat.

[Matt Grinter @matt_grinter]

@pmagn @BenjaminLeitgeb @EcdoPrep I'd say more than slightly. The point can be driven home without excluding data. Now there's a graph being shared everywhere where most people won't realize data is excluded.

[Matt Grinter @matt_grinter]

Vineland reached 20.0C at 11 am making it the first 20C temperature for Ontario this year. #onstorm

[Matt Grinter @matt_grinter]

@DavidTaylorNYC @MurphTWN ...... More than a Murph 😂

[Matt Grinter @matt_grinter]

With the 5 cm of snow reported on metars this morning at YYT to add to the 172.2 from Feb 1 to 25. St. John's airport has now had its snowiest month on record beating the old record of 173.4 cm from December 2000. #yyt #nlwx

[Matt Grinter @matt_grinter]

Another 4 cm from 11 pm -1 am puts the daily total to 50 cm in Burlington. #ONStorm #onwx

[Matt Grinter @matt_grinter]

6 cm in Burlington as of 1 pm.
#onstorm #ONwx

[Matt Grinter @matt_grinter]

From 7 pm to 11 pm - measured 31 cm! The lake effect band has been a fire hose the past couple of hours. Storm total from this morning is 46 cm! #onstorm #onwx

[Matt Grinter @matt_grinter]

@stormwx1 I wasn't measuring it that closely. My guess would say yes, but no true measurement.

[Matt Grinter @matt_grinter]

Downtown Toronto's largest one day snowfall on record is 48.3 cm on Dec 11, 1944. Snowfall records have not been kept since 2017, however, the change of SOG today from 9 am till 8 pm shows 56 cm has accumulated in that time. Largest one day snowfall for Toronto?!* #onstorm #onwx

[Matt Grinter @matt_grinter]

41 cm at Pearson Airport (YYZ) as of 7 pm, that (unofficially) beats the old daily snow record of 39.9 cm from Feb 25, 1965. Still 6 hours of the day left to add to that total. #onstorm #onwx

[Matt Grinter @matt_grinter]

@m_e_f1 @WxOntario1 I'm west central. I also use a snow board and clear every 6 hours. The wind is probably also playing a factor in the difference.

[Matt Grinter @matt_grinter]

@stormwx1 YYZ also saw 6 cm in the past hour. 18 cm total.

[Matt Grinter @matt_grinter]

~ 10 cm of snow as of 9 pm in Burlington. First flakes of the season adding up to 10 cm is not a bad start for the winter season ... right @gtaweather1 🎉 #onstorm

[Julien C @jjcwpg]

Temperatures were close to average overall for summer 2025 in Winnipeg (June to August). It was the smokiest summer on record by far, beating the previous record by almost 100 hours. August rainfall resulted in only a 32nd driest summer, but June-July were very dry.

[Matt Grinter @matt_grinter]

@CAlexMasse It looks like that one east of Mount Forest was a different cell.