looks like a experienced outdoors person.

In my experience there are a few kinds of persons who will go out despite bad weather forcast:

- People with time and/or money contrains. Do it now or wait/save up for another year.

- Setting your self up for succes type of persons. 'The we, go out despite bad weather forcasts and see how the weather actually is on sight and determine if you turn around or not'. Weather forcasts are just forcasts and it's not really too accurate. Many people, me including have just stayed home when the weather forcasts was bad, just to find out it was pretty good.

- A little bad weather means less congestion on populair routes, which sometimes makes things more pleasant and sometimes even safer.

In all cases, beter get a good bail out plan and bring proper equipment. I do not know her, the area or the weather forcast, but I do get why people do not abord plans when the weather forcast turn bad.