The board simplified to one hazard on wet soil. 32 Flood Warnings and 14 Flood Watches are live, with land alerts concentrated in Ohio, Illinois, Iowa and West Virginia, under a Day-1 slight excessive-rain area over the Midwest and Ohio Valley plus the Northern High Plains — and the discussion's own emphasis is saturated soil rather than rainfall rate. On full ground the runoff coefficient approaches one, so an ordinary risk cashes out as warnings. The flash-flood focus through Tuesday sits on the Appalachians and Mid-Atlantic, New Mexico and west Texas, and South Florida. Total active alerts read 336 — 87 land, 249 marine.
THE RECORD
35 turning points on record since Jul 18 — the 8 most recent shown.
Sep 21▽ slipped down the board
Sep 19building → active
Sep 18cresting → building
Sep 17building → cresting · intensified sharply
Sep 16↑ moved up the board
Sep 15active → building
Sep 13↑ firmed
Sep 12▽ slipped down the board
WHO IT TOUCHES
Public safetyfive warning systems live at once, and the distance between the warning and the water is different in every one
Aviationat least 275 flights already cancelled on a holiday weekend, with three more boards to buffer
Supply chainsrail suspended through a holiday weekend, a Rhine at 16.0 cm, and a coast that may lose its ports inside three days
Energymore than 4,000 homes already dark, and three grids facing wind, hail or flood inside the day
Agriculturea hail line over three Brazilian states and a withdrawal window opening across north-west India, inside the same day
CONNECTED
The hazard is the soil, not the rainfall total — two boards on opposite sides of the planet where ordinary rain is doing extraordinary work.
WHAT THEY'RE SAYING
searched 34 vetted voices and the open field — nothing said about this system cleared the screen.
THE ATMOSPHERE TODAY · EVENT← TODAY'S COVER