Evaluate the valence intensity of the following tweet, considering the mood of the tweeter. Provide a score between 0 and 1, where 0 indicates very negative and 1 indicates very positive.
Tweet: Completely blown away by @EvaNoblezada @alistairbrammer @JonJonBriones and the cast of @MissSaigonUK tonight. #fathomevents #speechless
0.677