🛟Public safety

seven national warning systems live at once, and only one of them has published the hour it begins

Seven systems, seven different distances between the warning and the water — and exactly one with a start time on it. In Nigeria the lead time is the whole story: the regulated release begins tomorrow and ramps 100 to 1000 m³/s over seven days, with an official alert already out across eleven Benue-bordering states, which is a rare case where evacuation sequencing can be planned against a published schedule rather than a gauge. In Vietnam the lead time has already been spent — about 700 residents in 160 households are out of the Se Pon floodplain and the rain is still falling on saturated slope. Pakistan has one day of spell left onto loaded rivers, Bangladesh has rivers still rising under up to 16 districts of flash-flood risk, Saudi Arabia's reds now run through Friday, South Africa has a new cut-off low Wed–Fri rather than the easing that was called, and in the United States the board is deliberately pre-staging — Flood Watches 11 to 16 for an event on Friday. The call that belongs to the emergency manager is which of those clocks they are allowed to use.

carried on 36 of the last 62 editions — since Jul 18, the 10 most recent shown.