| OCR Text |
Show Sounds Change Before A Rain? Why do horns, whistles and other noises often sound different, diffe-rent, or hollow, just before a rain? HAVING established, in that these noises are different, let us look at the cause. Immediately Im-mediately before a rain the ceiling of the cloud base often lowers and one gets a sort of echo board effect with sounds. Train whistles, boat horns, or the grind of an aircraft engine en-gine reach one's ear with a different dif-ferent sound or tone. It's a weather clue. It usually means rain is coming. IT'S MOST valuable as a signal at night, when clouds can t be seen well. Noting this change in sounds, one can prepare pre-pare for possible rain in a matter mat-ter of minutes or hours. |
