YELLOW ADVISORY - FROST ENDED, Ottawa

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 8:42 AM EDT Sunday 4 October 2026...

#Frost #ONwx #CdnWeather #wx

Latest regional radar loop for Ontario, zoomed in 4 SONT. Cold front is very evident on this loop, keeps moving East-NE, scattered showers/odd rumble of thunder, no big deal, it's weakening tho. This is the 1st wave of cooler air pushing thru -Next wave Mon. AM #onwx #onstorm

...while I brew my coffee🙌...Quick look at RTMA Temperature Analysis (of real data) this morning at 6:15 AM. Coldest air in mid areas of EONT. Probably some patch frost, especially in frost pockets. #onwx #onstorm (Mmmmmmm...the smell of coffee on a Sunday Morn😋)

YELLOW ADVISORY - FROST, Peterborough

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 5:12 AM EDT Sunday 4 October 2026...

#Frost #ONwx #CdnWeather #wx

YELLOW ADVISORY - FROST, Kingston

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 5:12 AM EDT Sunday 4 October 2026...

#Frost #ONwx #CdnWeather #wx

YELLOW ADVISORY - FROST, Ottawa

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 5:12 AM EDT Sunday 4 October 2026...

#Frost #ONwx #CdnWeather #wx

That cold front will usher cooler at first, showers. maybe a local storm, but the arrival of the colder air aloft happens Mon. AM. Lot's of instability sets up post front (warm lakes) both Integrated graupel which helps Lightning production + lake CAPE ramps ups. #onwx #onstorm

Latest 0Z HRRR- Radar + Cloud cover% 4cast from ~now thru 8PM Mon. Cold front crosses SONT ~mid-day Sun. (few showers/risk local storm) cooler air floods in at first,-then even colder air Mon. AM. Instability showers/LE streamers pop up. HRRR also thinking some⚡️ with the front #onwx #onstorm

YELLOW ADVISORY - FROST, Peterborough

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 8:53 PM EDT Saturday 3 October 2026...

#Frost #ONwx #CdnWeather #wx

YELLOW ADVISORY - FROST, Kingston

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 8:53 PM EDT Saturday 3 October 2026...

#Frost #ONwx #CdnWeather #wx

8PM EDT (00Z) Synoptic “Snapshot” summary of
current atmospheric conditions in S. Ontario
Such as-pressure/temp.-fields/frontal locations.
A total precipitation outlook for overnight till 8AM next day & any active ECCC Alerts at post:
shorturl.at/Mfiuo - frost
#onwx #onstorm

YELLOW ADVISORY - FROST, Ottawa

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 8:53 PM EDT Saturday 3 October 2026...

#Frost #ONwx #CdnWeather #wx

8PM EDT (00Z) Synoptic “Snapshot” summary of
current atmospheric conditions in N. Ontario
Such as-pressure/temp.-fields/frontal locations.
A total precipitation outlook for overnight till 8AM next day & any active ECCC Alerts at post: None
#onwx #onstorm

YELLOW ADVISORY - FROST, Peterborough

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 6:37 PM EDT Saturday 3 October 2026...

#Frost #ONwx #CdnWeather #wx

YELLOW ADVISORY - FROST, Kingston

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 6:37 PM EDT Saturday 3 October 2026...

#Frost #ONwx #CdnWeather #wx

YELLOW ADVISORY - FROST, Ottawa

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 6:37 PM EDT Saturday 3 October 2026...

#Frost #ONwx #CdnWeather #wx

....Well that ramped up faster than I thought, lol
Frost alert just released... don't worry, there will be more in the next couple of days😬. 👉 shorturl.at/FPWYK
#onwx #onstorm

We have a Frost advisory issued for Eastern Ontario for Sunday October 4th.. #frost #onstorm #ONwx

YELLOW ADVISORY - FROST, Peterborough

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 10:40 AM EDT Saturday 3 October 2026...

#Frost #ONwx #CdnWeather #wx

YELLOW ADVISORY - FROST, Kingston

Persons in or near this area should be on the lookout for adverse weather conditions and take necessary safety precautions. Issued: 10:40 AM EDT Saturday 3 October 2026...

#Frost #ONwx #CdnWeather #wx