I use the HRRR a lot since I was tipped off about the site by Walt (WX) a few years ago. I use it most for its predicted convective cloud development (echotop height, cloudtop height), cloud cover and winds.

Recently, we had several days of strong east winds in Arizona that make soaring very tough, but HRRR predicted they would quit around noon on day three and that cumulus would form. The model was spot on and what looked like a lost day turned into a very good one.

It's also quite good in predicting winds from microbursts, which is really useful out west. It accurately predicted a strong line of outflow from distant thunderstorms last June in Moriarty, for example.

I also haven't fund a way to go to a specific field, but start at the main page.

Mike