Inside was comfortable but outside looked terrible.

One of my friends attends an oil painting class and the school ran an exhibition for three days, so I went to look at her paintings yesterday.
A typhoon made landfall at Kyushu yesterday morning. Here Osaka is very far from Kyushu, but the weather was unsettled. When I left my house I could see the sun shine but when I arrived at a station it was cloudy. After that it started small rain apparently while I was in the exhibition hall. I moved to a restaurant with other friends for lunch and had a talking time. Then we heard a big sound. It was a rumbling thunder. The rain became heavy as quick as a blink. A storm warning was issued. We were surprised but we went back to our chatting immediately. We talked a lot for a long time, of course. We enjoyed our chatting and the cozy meal.
The inside of the restaurant was very comfortable but outside looked terrible.
When we left the restaurant, it was still rain but no storm. I arrived at the nearest station of my house and I saw a beautiful sunset. It was lovely day.