In today's 1630Z outlook, SPC mentions possible upgrades in the next outlook for three different regions. Not sure I have ever seen that before, but I think that is a good example of what people have been talking about in this thread, i.e. days where you don't know much until the day of or very close. This can work out great if you live near the threat area and have a flexible schedule or are on chasecation already in the area. Of course, as others have said, not so much if you have to travel or have inflexible schedules. But for those whose situations are right, opportunities will arise, though they may not be evident too far ahead. I will say this, though - some of my best chase days have been when something has arisen on short notice near where I already was. So if you have some flexibility, pay attention to the short term.