Weather historian. I gather raw statistics from Environment Canada to generate these alerts. All tweets authored by Rolf Campbell.

Joined March 2015
馃With 56 cm of snow cover, today is #Toronto-Pearson's deepest Jan 26th since records began in 1955. #YyzWx #TOWx #YYZ #ONWx
3
600
Yesterday was the 5th snowiest January day on record in #Toronto-Pearson: 23cm. #YyzWx #TOWx #YYZ #ONWx
1
528
Yesterday was the snowiest day on record in #Toronto-Pearson: 46.2cm. #YyzWx #TOWx #YYZ #ONWx
5
12
1,166
馃With 46.2cm of snow, yesterday was #Toronto-Pearson's snowiest Jan 25th since records began in 1938. #YyzWx #TOWx #YYZ #ONWx
5
362
With 56cm of snow-on-the-ground, today is #Toronto-Pearson's deepest day in more than 20 years, since Jan 16th, 1999. #YyzWx #TOWx
3
2
20
18,700
Today is the 10th snowiest day on record in #Toronto-Pearson: 28cm. #YyzWx #TOWx
3
620
馃With a 4pm snow total of 23cm, today is #Toronto-Pearson's snowiest Jan 25th since records began in 1938. #YyzWx #TOWx #YYZ #ONWx
5
26
4,138
Today is #Toronto-Pearson's 2nd day with at least 20cm of snow this January which puts 2026 in 1st place for the most during January. #YyzWx #TOWx #YYZ #ONWx
2
486
Today is #Toronto-Pearson's 2nd day with at least 20cm of snow this year which raises 2026 from 5th to 1st place for the most in any year since records began. Just 1 more day to break the all-time record. #YyzWx #TOWx #YYZ #ONWx
1
417
With a 4pm snow total of 23cm, today is #Toronto-Pearson's snowiest day in more than 4 years, since Jan 17th, 2022. #YyzWx #TOWx
8
589
Today is the 10th snowiest January day on record in #Toronto-Pearson: 18cm. #YyzWx #TOWx
1
304
馃With a 3pm snow total of 18cm, today is #Toronto-Pearson's snowiest Jan 25th since records began in 1938. #YyzWx #TOWx #YYZ #ONWx
1
6
720
Near record snow. 12cm of snow brought #Toronto-Pearson within 1.8 cm of the most snow recorded on Jan 25th. #YyzWx #TOWx
1
3
489
Yesterday was #Toronto-Pearson's first -20掳C of the season. Typical first is January 23. Record earliest is Dec 2, 1940; latest never, 1946/.../2024. #YyzWx #TOWx
2
409
Yesterday was #Toronto-Pearson's first -19掳C of the season. Typical first is January 22. Record earliest is Dec 2, 1940; latest never, 1952/.../2024. #YyzWx #TOWx
257
January 23 was #Toronto-Pearson's first -27 windchill of the season. Typical first is January 16. Record earliest is Dec 2, 1976; latest never, 1997/.../2023. #YyzWx #TOWx
253
January 23 was #Toronto-Pearson's first -17掳C of the season. Typical first is January 16. Record earliest is Nov 26, 1949; latest never, 2001/.../2023. #YyzWx #TOWx
1
220
January 23 was #Toronto-Pearson's first -16掳C of the season. Typical first is January 7. Record earliest is Nov 26, 1949; latest never, 2001/.../2023. #YyzWx #TOWx
245
January 20 was #Toronto-Pearson's first -26 windchill of the season. Typical first is January 7. Record earliest is Dec 2, 1976; latest never, 2005/.../2023. #YyzWx #TOWx
1
236
January 20 was #Toronto-Pearson's first -15掳C of the season. Typical first is January 2. Record earliest is Nov 26, 1949; latest never, 2001/2016. #YyzWx #TOWx
1
227