Exactly! perfect wx Saturday morning, a baron geared up coming to rest at the intersection of both runways! That's why we carry a 45 min reserve even with no traffic and weather.

I also had the misfortune of having a pretty bad mechanical problem and then completely unforecast weather pop up while dealing with the mechanical. It's obvious that some of these armchair quarterbacks have never been in a situation where plan A, B, C, etc fails and you're quickly running out of options needing to make a decision immediately. Sometimes no amount of planning can prepare you for when mother nature and/or mechanicals wants to throw a bunch of curve balls at once.

When I flew corporate we ALWAYS had access to xm weather. It was great being able to zoom out the map and see if stuff were popping up eroute from 1000 miles out. Also having easy access to tafs/metars/pireps/winds/sigmets graphically depicted on the screen. It amazes me how in the dark I feel at times in airline flying, with crappy radar and FMSs with limited capabilities. We have a dispatcher that in theory should be our extra eyes and ears, but not all of them seem to be very proactive about letting us know when trouble lies ahead. Its just not the same as being able to access the information we had available at fingertips in the corporate jet.