hi there, ive only got 6 weeks until my 3 week holiday to the Rockies were starting Calgary on the 20th sept and ending in Vancouver on the 10th oct so can anyone tell me what sort of weather i might expect so as i know what to pack for my family?

It will be similiar to English autumn as you are not entering the cold winter weather yet. It still could be in the mid 20's in daytime high. Calgary you would expect to see frosts at night. Though I have seen snow in Calgary in late September. Vancouver should be milder. I would pack waterproof jacket and a fleece you could wear underneath.

Arriving during the change of seasons can be hard to pack for! I'd suggest bringing clothes that you can layer. You may want something a bit warmer while you're in the Rockies, but a warm fleece should suffice. The Lower Mainland of BC (Vancouver area) is generally still quite mild until mid October, so you won't need bulky sweaters there at that time (as Hudd mentioned, rain gear might be a consideration though).

Have a wonderful trip!!

Oggy

Thanks for that.

Judy in Calgary's website has all the info you need

1 dead, 3 injured after tornado hits resort towns in Manitoba

Has happen in alberta too. so be prepared.

A little alarmist to say the least.

They arrive on the 20th of September almost impossible to happen at that time of year. July early August maybe but late September no chance.

Steve

your right steve,

30 September 1999, Calgary, Alberta: Black ice conditions causes a 90 vehicle pileup in Calgary closing Deerfoot Trail for 20 hours.

24 September 2001, Lethbridge, Alberta: Record heat across Alberta: Lethbridge breaks old record by 5Co (9Fo)with 35.7°C (96.3°F) reading.

7 September 1991, Calgary, Alberta: A 30 minute hailstorm drops 10-cm (4-inch) diameter hail on Calgary subdivisions, breaking windows and siding, splitting trees, and crushing birds. Homeowners file a record 116,000 insurance claims for losses exceeding $300 million making it the most destructive hailstorm ever in Canada.

1 September 1950, Northwestern Alberta: Tornado skirts across Alberta from Rycroft to Eaglesham damaging crops, farm buildings and machinery.


The weather never has the possibility for Tornados in september in alberta.

Oh, I'm convinced then.
Quick......... let's all go back to the UK!!

I only lived in Alberta for 2 years, but did have the pleasure of driving in the autumn on the Deerfoot Trail and freezing rain/black ice. Only saw hail as big as golf balls though. Luckily my car was in a garage at the time of the hail storm, though it made a a mess of my mates car. Had a twister go through our town, it only damaged the local camp site. It scared the wife and kids though. Took a couple of weeks to clean all the dust in the house.
hudd

I did state almost impossible.

The only reference you make to a September tornado is on the first of the month, a possible chance of a tornado with the hail storm (and we all know not all thunder/hail storms produce totornado's) was on the seventh of the month, by the way I remember that one we had to get a new roof. High heat itself wont produce a tornado. Finally what the hell does black ice have to do with totornado's?

I stick with my original statement the chances of a late september tornado in Alberta particularly the Calgary/Banff area is almost nil.

You are scare mongering and it is completely ununnecessary.

Steve

Is that like being nearly a virgin

You got it in one.

Just like the Montreal Olympics had as much chance of losing money as a man has of getting pregnant, to paraphrase Jean Drapeau.

Cheers
Steve

Thanks for all that folks, now im REALLY looking forward to my holiday

I had a holiday in practically the same places at the same time as you, but 7 years ago.

It was very warm until the last couple of days when it snowed - in Jasper but was warm again by the time we got back to Vancouver. Packed warm clothes, mainly wore my shorts.