Being smoked out will always be a threat for any trip to
Disneyland. Seriously, CA is covered in fire hazards across the state and especially in that area. You will never be able to guarantee a no smoke trip. Therefore, I’d go on your trip and then leave early if smoke starts flooding the area. The odds of actually being smoked out are very low, it has happened but it’s VERY uncommon.
Those thoughts aside...
*MAJOR CAVEAT to the following: I do not know if the normal ticket rules are different for Canadian discount tickets. IF they operate under the normal ticket rules...
People can try to plead their cases for refunds but I haven’t seen a single DP on anyone getting refunded for ANY reason in the last year.
You can’t apply the value to Disney World tickets. The tickets will retain their purchase price value and you can use that towards another Disneyland ticket if they expire.
CA is forecasting rain coming in for some around Wed as long as the high pressure ridge off the coast breaks.
Disney World: are you thinking of switching this seemingly soon trip to WDW? Like, you know it’s American Thanksgiving next week and Disney World will be swamped right? The best Table Service restaurants were booked out 6 months ago. The best FastPasses were booked out 2 months ago. Heck, being a holiday the mediocre FastPasses were probably booked 1 month ago. Tickets are now variably priced on the date there so if you haven’t looked at the ticket prices in the last month check again.
A couple US airlines are waving change fees for the area- but only as long as you travel to the same place on a slightly different date. Getting your money back on flights could be hard, if not impossible...