Alberta Foothills Weather

October 25

After breaking our 41year high temperature record yesterday, hitting 23.5C at YQF, a sharp cold front blew through at 4:30pm(fig.1), with winds veering instantly from SW to NNE and gusting to 60+km/h. We got a few mm of rain in the early evening, then a few patches of ice pellets and some flurries near midnight. Calgary got 3cm of snow this morning.

Looking back at last year, we took a big dive into the deep freeze on the 27th(fig.2), which lasted till Nov. 7. First snow photos last year are from Nov.4, at which point there is already good ice building on Gleniffer lake(3,4). Long range forecasts aren’t calling for that this year, but this is Alberta so we shall see. Haven’t even seen ice on a puddle yet.

Two comets are now visible to night sky watchers.
Comet Loneos C/2007 F1 is a green fuzzball setting after the sun, almost due west. An easy spot with binocs at mag 6 or so, it might brighten up this week, with our best chance to see it being Oct28.
Comet 17P/Holmes surprised everybody yesterday when it suddenly flared up, brightening from mag 17 to 2.5 in one day.
Will have to go out tonight and have a look if it doesn’t snow 🙂 . Spaceweather has a 17/P Holmes gallery here.

Full moon tonight @ 5:42pm

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