What is amusing about weather is that the carried over the same bizarre feature from MTW: the weather changes every 5 minutes or so, with little regard to what it was "forecasted" to be. You can actually detect the slight pause as the new weather loads.

Here's a really novel idea ...weight the weather change probability. In real life if it is raining cats and dogs, chances are that 5 minutes later it will still be doing the same. It is extremely rare that it is bright and sunny within 10 minutes... Or raining 5 minutes after having a clear blue sky. As time goes on the chance of weather changing could certainly increase.

It does tend to go in sequence: fair, light rain, heavy rain, then light rain, then fair, then light rain, repeat... Instead of cycling so easily there should be some sort of probability that the weather will change (better or worse.) Most times it would not change on the first pass, or even the 2nd or 3rd.

Statistics have shown that the most reliable weather forecast is that tomorrow's weather will be roughly the same as todays. Now cut that down to 5 minute or one hour increments and think about the most likely forecast.