oh man - you want to know something funny. At my startup we had a guy hacker in a random weather generator to use in our models. I was like WTF Man! The number

oh man - you want to know something funny. At my startup we had a guy hacker in a random weather generator to use in our models. I was like WTF Man! The numbers you are getting are not random. Sure the models are chaotic and non-linear, but still it's giving you hints at potential patterns, especially at long range time scales. People need to understand that wx forecasts, especially 3+ days out, should be read as guidelines for what is LIKELY to happen. Say that GFS predicts two inches of rain for your city over the next week as a wave comes through. What if the next model run shifts that blob of rainfall 25miles north? In the model terms, global terms, 25miles is nothing. But for you that is the difference between dry & soaked , and you think the model sucks.