zzh wrote:tolakram wrote:Keep in mind that historically the April forecast has NO skill and is often negative. I'm glad they issue it as the discussion is the important part, I just wish they left the numbers out. In my opinion.
https://i.imgur.com/bmpcrWv.jpg
https://i.imgur.com/vzsQB7b.jpg
Just a reminder that CSU has improved A LOT in recent years.
Good point, but I don't think there's enough data yet to say if this is an actual positive trend OR just a symptom of ENSO doing what was expected. In other words, has ENSO forecasting really improved yet? If we stay neutral their April forecast probably verifies well, if not it won't.
Here's their deep dive into the percentages:
1. AMO is very strong in 2022 and no El Niño occurs (resulting in a seasonal
average Accumulated Cyclone Energy (ACE) activity of ~ 170) – 25% chance.
2. AMO is above average and no El Niño occurs (ACE ~ 130) – 40% chance.
3. AMO is above average and El Niño develops (ACE ~ 80) – 15% chance.
4. AMO is below average and no El Niño occurs (ACE ~ 80) – 10% chance.
5. AMO is below average and El Niño develops (ACE ~ 50) – 10% chance.
65% chance of 130+ ACE
35% chance of 80- ACE