Alberta Foothills Weather

February 5

Nice warmup today, gaining 20C and climbing above the freezing mark for a few hours late this afternoon for the first time since Jan.26.
A huge chinook arch formed up over the foothills after noon and slowly pushed over here by sunset. The strange looking thumbnail picture below is a squeezed to fit version of the largest image I have posted so far. It’s a 15,000 x 600 pixel 1mb panorama of the arch from this afternoon. So be warned, if you click the funky pic below, what pops up may take a while to load.

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The WRF and GFS models have sped up a bit and brought the arctic blast a day forward. Now the WRF is calling for the cold wave to arrive Thursday afternoon/evening while the GFS expects it to arrive Friday morning. They do not agree on how to handle a low expected to be over southern Alberta Friday morning, maybe they will more more in line tomorrow. As of 00z(5pmMST) the WRF is calling for a quick blast of snow Friday morning, followed by a nasty north wind, then some more blow and maybe some snow for Saturday as the next system rolls into northern BC and kicks the cold out of here by Sunday. GFS holds the low back a bit and gives us a few more hours of snow for Friday.
Whatever happens, Friday and Saturday look like a good time to be someplace tropical. The coldest stuff is forecast to be north of about Edmonton, so hopefully it will stay up there. GFS showing above normal temps for next week.

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