#ONStorm
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darkwaterphotos.bsky.social
#OnStorm Currently playing the classic Canadian game: "Am I on the road, or is this a lake?".

I think we're in for about five centimetres of white cloud goop coming down through the night, starting around Two A.M. #SnowDay #OhMyDouglas #Toronto#Snowfall #SnowProblem #CdnPoli #SnowMuchFun
Screen image is Michigan & Southern Ontario as it appears on Windy.com's radar map, blue bits being various levels of snowfall. Toronto circled in red for perspective.
February 10, 2026 at 5:16 AM
mrwx4caster.bsky.social
Latest WPC winter guidance snow amounts (in inches) and possible risk area for patchy, local freezing drizzle. They have shifted back into more MI side, lessened it a bit, and moved it a bit north from previous 4casts. Snow amounts look reasonable. #onwx #onstorm
Latest WPC winter guidance snow amounts (in inches) and possible risk area for patchy, local freezing drizzle. They have shifted back into more MI side, lessened it a bit, and moved it a bit north from previous 4casts. Snow amounts look reasonable.
February 10, 2026 at 2:42 AM
mrwx4caster.bsky.social
Latest SONT Radar & SFC Visibility (<5 miles-grey blobs) loop, 6hr. history -till 9:25 PM EST #onwx #onstorm area of snow thru-out Cottage C/NE/EONT
February 10, 2026 at 2:29 AM
mrwx4caster.bsky.social
7PM EST (00Z) Synoptic “Snapshot” summary of
current atmospheric conditions in S. Ontario-includes
info on pressure/fronts/temps/radar/etc. A
precipitation outlook for overnight till 7AM next day &
other maps as needed. Active ECCC Alerts:
shorturl.at/n7Yty
#onwx #onstorm
7PM EST (00Z) Synoptic “Snapshot” summary of current atmospheric conditions in S. Ontario-includes info on pressure/fronts/temps/radar/etc. A precipitation outlook for overnight till 7AM next day & other maps as needed.
February 10, 2026 at 1:17 AM
mrwx4caster.bsky.social
7PM EST (00Z) Synoptic “Snapshot” summary of
current atmospheric conditions in N. Ontario-includes
info on pressure/fronts/temps/radar/etc. A
precipitation outlook for overnight till 7AM next day &
other maps as needed. Active ECCC Alerts:
shorturl.at/n7Yty
#onwx #onstorm
7PM EST (00Z) Synoptic “Snapshot” summary of current atmospheric conditions in N. Ontario-includes info on pressure/fronts/temps/radar/etc. A precipitation outlook for overnight till 7AM next day & other maps as needed.
February 10, 2026 at 1:16 AM
mrwx4caster.bsky.social
Risk is low & short lived, but it keeps showing up in the model runs with various coverage scenarios, all light BTW, -but even the most minimal ice accretion on non treated surfaces can cause issues. Just be aware & heed any ECCC alerts that may be issued. #onwx #onstorm
Risk is low & short lived, but it keeps showing up in the model runs with various coverage scenarios, all light BTW, -but even the most minimal ice accretion on non treated surfaces can cause issues. Just be aware & heed any ECCC alerts that may be issued.
February 10, 2026 at 12:17 AM
mrwx4caster.bsky.social
Latest Aft. run of the HRRR -Radar 4cast + WPC's snow guidance (in inches) at p50-"what is expected" (the underlaid static image) – not much has changed, again the focus for the bulk of the snowfall is in NEONT/Cottage C/EONT. GTAH ~1-4cm overall #onwx #onstorm
February 10, 2026 at 12:05 AM
instantweather.bsky.social
#ONStorm #ONwx 🚌 ‘Snow Day’ Forecast: Up to 10-20cm of Snow on Tuesday Could Bring Widespread Bus Cancellations to Parts of Southern Ontario

📅 Tuesday, February 10, 2026

⤵️ VIEW TOMORROW'S FORECAST HERE ⤵️
🔗 instantweatherinc.com/article/onta...

- Brennen
‘Snow Day’ Forecast: Up to 10-20cm of Snow on Tuesday Could Bring Widespread Bus Cancellations to Parts of Southern Ontario
Widespread snow is expected to spread across much of Central and Eastern Ontario overnight and continue into Tuesday morning. This system will bring a steady period of snowfall that is likely to creat...
instantweatherinc.com
February 9, 2026 at 11:03 PM
darkwaterphotos.bsky.social
#OnStorm I think we're looking at three to five centimetres of the white flakes throwing themselves at the ground overnight.

It's going to be another snow bath.

I'm going for a run to the store for #stormchips just because, and maybe I'll grab milk and bread while I'm there.
February 9, 2026 at 9:41 PM
hamiltonweather.ca
YELLOW LEVEL WARNING - COLD - ENDED for #HamOnt at 10:28 AM EST. #ONStorm
February 9, 2026 at 3:28 PM
mrwx4caster.bsky.social
Latest 12Z run of the HRRR -Radar 4cast + WPC's snow guidance (in inches) at p50-"what is expected" (the underlaid image) -both matched up to end at 7AM Wed. Again the focus for the bulk of the snow is in NEONT/Cottage C/N. EONT. #onwx #onstorm
February 9, 2026 at 2:27 PM
mrwx4caster.bsky.social
WPC's latest guidance on ice accretion risk, the risk is still low, but there, this solution has been there for several runs, so I posted it. The risk is for patchy freezing drizzle along a warm front entering SWONT in the overnight into Tues. AM. #onwx #onstorm
WPC's latest guidance on ice accretion risk, the risk is still low, but there, this solution has been there for several runs, so I posted it. The risk is for patchy freezing drizzle along a warm front entering SWONT in the overnight into Tues. AM.
February 9, 2026 at 1:22 PM
mrwx4caster.bsky.social
7AM EST (12Z) Synoptic “Snapshot” summary of current atmospheric conditions in S. Ontario
Includes info on pressure/fronts/temps/radar/etc. A
precipitation outlook for the day until midnight & other
WX-maps as needed. Active ECCC Alerts:
shorturl.at/35M1Q
#onwx #onstorm
7AM EST (12Z) Synoptic “Snapshot” summary of current atmospheric conditions in S. Ontario Includes info on pressure/fronts/temps/radar/etc. A precipitation outlook for the day until midnight & other WX-maps as needed.
February 9, 2026 at 1:04 PM
mrwx4caster.bsky.social
7AM EST (12Z) Synoptic “Snapshot” summary of current atmospheric conditions in N. Ontario
Includes info on pressure/fronts/temps/radar/etc. A
precipitation outlook for the day until midnight & other
WX-maps as needed. Active ECCC Alerts: None at post
#onwx #onstorm
7AM EST (12Z) Synoptic “Snapshot” summary of current atmospheric conditions in N. Ontario Includes info on pressure/fronts/temps/radar/etc. A precipitation outlook for the day until midnight & other WX-maps as needed. Active ECCC Alerts: None at post
February 9, 2026 at 1:03 PM
hamiltonweather.ca
YELLOW LEVEL WARNING - COLD - for #HamOnt at 4:31 AM EST. #ONStorm
February 9, 2026 at 9:32 AM
instantweather.bsky.social
#ONStorm #ONwx ☃️ Snowy Blast Could Bring 10-20cm of Fresh Snow to a Wide Swath of Southern Ontario on Tuesday

📅 Tuesday, February 10, 2026

⤵️ VIEW THE FULL FORECAST:

instantweatherinc.com/article/onta...

- Brennen
Snowy Blast Could Bring 10-20cm of Fresh Snow to a Wide Swath of Southern Ontario on Tuesday
The month of February has certainly been a lot quieter on the snow front across Southern Ontario compared to what many experienced during January. That stretch featured relentless lake effect squalls ...
instantweatherinc.com
February 9, 2026 at 7:16 AM
mrwx4caster.bsky.social
ooking at the profiles,-several models have a slight risk for freezing drizzle Mon. overnight/into Tues. AM as warmer air aloft rides over the colder dense air near the surface-potential set up for some FRZN DR. Mainly in SWONT rn. (used the London profile) #onwx #onstorm
February 9, 2026 at 3:47 AM
mrwx4caster.bsky.social
Latest-WPC’s Winter Snow Guidance-72hrs out (in.) -p50: "What is expected" (most likely)
p90: "Overachieves" -near the "upper limit"
The "range" of "possibilities" for snow amounts-rather than just "one single number". #onwx #onstorm
1"snow=~2.5cm-Colour scale at top
Latest-WPC’s Winter Snow Guidance-72hrs out (in.) -p50: "What is expected" (most likely) p90: "Overachieves" -near the "upper limit" The "range" of "possibilities" for snow amounts-rather than just "one single number". 1"snow=~2.5cm-Colour scale at top
February 9, 2026 at 3:14 AM
mrwx4caster.bsky.social
Latest HRRR continues to show that the bulk of snowfall will be in NE/EONT based on the snowfall trail, will have some numbers next post. (snowfall trail colour scale at top in inches-1"snow=~2.5cm) #onwx #onstorm
February 9, 2026 at 2:54 AM
mrwx4caster.bsky.social
7PM EST (00Z) Synoptic “Snapshot” summary of
current atmospheric conditions in S. Ontario-includes
info on pressure/fronts/temps/radar/etc. A
precipitation outlook for overnight till 7AM next day &
other maps as needed. Active ECCC Alerts:
shorturl.at/dLinF
#onwx #onstorm
7PM EST (00Z) Synoptic “Snapshot” summary of current atmospheric conditions in S. Ontario-includes info on pressure/fronts/temps/radar/etc. A precipitation outlook for overnight till 7AM next day & other maps as needed.
February 9, 2026 at 1:17 AM
mrwx4caster.bsky.social
7PM EST (00Z) Synoptic “Snapshot” summary of
current atmospheric conditions in N. Ontario-includes
info on pressure/fronts/temps/radar/etc. A
precipitation outlook for overnight till 7AM next day &
other maps as needed. Active ECCC Alerts: None at post #onwx #onstorm
7PM EST (00Z) Synoptic “Snapshot” summary of current atmospheric conditions in N. Ontario-includes info on pressure/fronts/temps/radar/etc. A precipitation outlook for overnight till 7AM next day & other maps as needed. Active ECCC Alerts: None at post
February 9, 2026 at 1:16 AM
instantweather.bsky.social
#ONStorm #ONwx 🚌 Southern Ontario: ‘Snow/Cold Day’ Forecast for Monday, February 9, 2026

⤵️ VIEW TOMORROW'S FORECAST HERE ⤵️
🔗 instantweatherinc.com/article/onta...

- Brennen
Southern Ontario: ‘Snow/Cold Day’ Forecast for Monday, February 9, 2026
While no precipitation is expected across Southern Ontario on Monday, there is still a slight chance of school bus cancellations tied to extreme cold in some parts of the region. The coldest conditio...
instantweatherinc.com
February 8, 2026 at 11:25 PM
hamiltonweather.ca
YELLOW LEVEL WARNING - COLD - for #HamOnt at 3:10 PM EST. #ONStorm
February 8, 2026 at 8:11 PM
mrwx4caster.bsky.social
...gotta love the Great lakes in the dead of winter. Just amazing...could watch this all day...and all the things/features that are happening in that loop. #onwx #onstorm
February 8, 2026 at 7:52 PM
hamiltonweather.ca
YELLOW LEVEL WARNING - COLD - for #HamOnt at 10:22 AM EST. #ONStorm
February 8, 2026 at 3:22 PM