Record hottest month


The October just finished will be the hottest month on record globally.  That’s since 1850 — a total of 166 years, or nearly 2000 individual months.

. . . → Read More: Record hottest month

Diesel and NOx

Why do diesel cars emit so much NOx ?  Here’s my answer in 6 tweets … expanded and annotated.  It turns out to be fairly complex.

. . . → Read More: Diesel and NOx

The last gasp (22 September)

Outcome: Nice setup, but dry — less than 10 cm. . . . → Read More: The last gasp (22 September)

Next week (2-5 September)

Outcome: A modest spring fall . . . → Read More: Next week (2-5 September)

An extraordinary system


No, the snow depth peak is not already in; not by a long way. The weather this week has been extraordinary; so far from conventional Australian snow weather as to border on unprecedented.

. . . → Read More: An extraordinary system

Is the peak already in?

Spencers Creek snow depth, from Snowy Hydro

With just 10 cm snowfall claimed at Perisher Valley and Thredbo overnight and a week of warm weather in the offing, is the 2015 snow depth peak already in?

. . . → Read More: Is the peak already in?

11-14 August


Outcome: Basically fizzed; Perisher Valley claimed less than 10 cm . . . → Read More: 11-14 August

Ski trail bikes

I mean snowmobiles of course, pretty much universally referred to by the popular brand name, Ski-Doo. These noisy smelly machines have been out of control in Australian alpine areas forever, but recent behavior is beyond acceptable.

. . . → Read More: Ski trail bikes

Thursday (30 July)

Outcome: Each of these (Thursday and Saturday) delivered about 5 cm, but with heavy rain preceding the snow on Saturday (60 mm at Perisher Valley). Miserable.

. . . → Read More: Thursday (30 July)

3-5 August


Outcome: Ignore the rain; this was another nice fall . . . → Read More: 3-5 August