@korina - I'm really pleased to see this feature being added.
Just looking at it this morning, its a bit too coarse to be useful to a soaring pilot. Its telling me, for example, that a broad area over central California will have 6 knt thermals today in the afternoon. Its smoothed from the coast to the Sierra Mtns. Here's a screenshot showing the current prediction for thermals:
Experience and other tools tell me (1) there is cloud in some areas today, (2) thermal lift is rarely or never smoothly distributed from coast to mountains like that and (3) its not going to be that strong. Here's a screenshot from Skysight showing what's more likely to be seen for thermal distribution and strength today.
Maybe there's no practical way to use better resolution and produce more localized predictions, but something more like the above Skysight image is what glider pilots would hope to see.