Weather in Israel is very interesting. (Author disclaimer: Both my wife and I have degrees in Meteorology, so we think that ALL weather is interesting. Please hold off on nerd-based comments until further notice.) Often, people have a misunderstanding of the land of Israel in that it is completely arid and warm. While there are locations in the land that can be described that way, overall, that is not the case. Generally speaking, the country of Israel has two seasons: summer and winter. During the transition times, you have periods of heavy rain. You can even read about these periods of rain in the Bible.
And it shall be that if you earnestly obey My commandments which I command you today, to love the Lord your God and serve Him with all your heart and with all your soul, then I will give you the rain for your land in its season, the early rain and the latter rain, that you may gather in your grain, your new wine, and your oil. - Deuteronomy 11:13-14
The early rains come in the fall and the latter rains come in the spring. During the summer, very little rain will fall in many areas of the country. Consequently, when the early rains come, flash flooding can easily occur.
Earlier today, I read posts from Luke Chandler (who gave a hat-tip to Ferrell Jenkins) and Todd Bolen who featured a link to an amazing piece of video from flash flooding in the Valley of Harod. The Valley of Harod stretches a few miles from the eastern edge of the Jezreel Valley to the city of Beit-She'an.
I am also reminded of Elijah's warning to King Ahab.
So he said, “Go up, say to Ahab, ‘Prepare your chariot, and go down before the rain stops you.’” Now it happened in the meantime that the sky became black with clouds and wind, and there was a heavy rain. So Ahab rode away and went to Jezreel. - 1 Kings 18:44-45
Elijah knew that flash flooding would occur in the Jezreel Valley once the rains came and sent his servant to warn King Ahab about it.
Isn't the weather in Israel interesting?
(You may now proceed with your nerd-based comments.)