Arthur's remnants had only a low formation chance in NHC's June 18 morning post, but the paper's June 17 account of Arthur's downgrade leaving the flood risk alive warned against confusing cyclone status with household hazard [1].

The National Hurricane Center made the same distinction in a different form: marginal conditions could allow some development offshore, the odds remained low, and that low percentage was not an all-clear [1].

The next sentence mattered more for readers because NHC said that regardless of development, heavy rainfall with the potential for widespread and life-threatening flash flooding was likely across portions of the Southeast [1].

WPC's excessive-rainfall products already showed why, with Gulf Coast flooding, saturated soils, and Arthur's remnant moisture continuing to produce dangerous rainfall [2].

The divergence is a public-communication trap: a 10% number can sound reassuring if the question is whether Arthur gets a second act, but it is not reassuring if the question is whether roads, creeks, or low spots can flood, so the service line for households is low redevelopment odds and a continuing flood task today.

-- DARA OSEI, London