Here's something a little off topic. I have noticed today that the 18z 3-km NAM products, as shown on PivotalWeather.com and College of Dupage, have taken from 18:00z till 23:00z, 5 hours, and they're not even completely done. This does not take so long for the 00z 3-km NAM products. Is NCEP just processing that much more computational stuff during the mid-day time?