@aiseries.com.ph: It's unbelievable there is no warning sirens. You would think the valley below would be alerted by sirens. They should have emergency drills for people to get to high ground. The authorities should learn from this and put things in place. Vulnerable locations should be identified. Infrastructure should be put in place to direct and control the flow in areas of high population. #NepalFlood #NepalDisaster #NepalFlashflood #NepalRescue #PrayforNepal