24 hrs is a trend. But today's 12z EPS in my opinion matches what the teles show. A slightly positive PNA is the only tele in our favor. Which screams average temps with occasional cold shots like next week. So I'd like to know where all that deep sustained cold was coming from? Especially with the coldest anomalies on the other side of the pole.So, what does everyone consider to be a trend? I would say give something at least 24 hours one way or the other for it to be a positive or negative trend. If the models show something going the same way, progressing the same, positive or negative for 24 straight hours, then I would consider that a true trend in one direction versus the other.