guerrilla rain and pinpoint rain

(posted; Etymology page)
Oh...., we had tyhoon damage in eastern part of Japan!!!  Another natural disaster with many casualties in a same year (sigh).   Also we have been experiencing weird climatic phenomenon. Rainfalls seems to have changed in its style, maybe due to the "global warming".

Strangely enough, torrential downpour for a while and then dark clouds moves quickly bringing sunshine. We had really changeable weather like these several times this late summer, which I've never experienced before. I wonder if the weather in Japan is getting close to the one in tropical area.

guerrilla rain and pinpoint rain　(ゲリラ豪雨・ピンポイント豪雨）

And there goes another new Japanese-English, "guerrilla rain" and "pinpoint rain". We have Japanese for localized torrential rain, but in these two Japanese-English, there seems to be slight differences.

       "guerrilla rain"  is unforeseeable

       "pinpoint rain"  is a bit foreseeable from the data.

(Here's the example conversation related with this new term in PC-site)

あなた(you)：Do you know two people were killed due to a guerrilla rain yesterday?

                          (昨日ゲリラ豪雨で2人亡くなったの知ってる？)
友達(friend)：Guerrilla rain? Oh, does it mean a "localized torrential rain"?
                          (ゲリラ豪雨？あー、"局地的豪雨"のことね？)
あなた(you)：Yes, that's right. We call it "guerrilla rain" in Japanese.
                           (そうそう、日本語では「ゲリラ豪雨」って呼んでるんだよ)
友達(friend)：I see, it's because it hits many areas in a short time like a guerrilla attack.
                           (なるほど。ゲリラ攻撃みたいに短時間でたくさんの地域に襲来するからだね)
(posted in Etymology page)