Thanks! So, IF this 12Z GEFS EPO were to verify, we'd have daily EPO numbers of 460, -480, -485, -475, -410 during the 5 day interval 12/23-27!! How rare would something like that be?
1. There's only one day since 1948 with a sub -485: -504 of 12/24/1983.
2. The longest stretch of sub -460 days on record is only 2: 12/23-4/1983. This would be 4!
3. The longest stretch of sub -400 days on record is only 4: 1/3-6/1974. This would be 5!
My point is that should this verify, this would be an extreme rarity for a -EPO. Are the models going to have extra trouble getting a good handle on this in advance?