The weather this morning was very good.   White clouds in a blue sky and the sun was shining.   However,  there was also some thunder.   At first I thought I was mistaken,  but there was more and more of it.   I remember this kind of situation is called  "Thunder on a Dry Day".   The sky turned darker as noon time approached.   Actually when it rained we realzed the weather had taken a turn for the worse.   Since thunder without rain lets us let down our guard for safety,  it is actually more dangerous.   I wonder if this phenomenon is directly related to super typhoon Neoguri that's approaching Okinawa in Japan?