arkstorm

From ARkStorm, from atmospheric river (“AR”) + thousand (“1000, k”) (1-in-1000 years) + storm. From staring as a disaster planning scenario for a once in a thousand year storm event rainstorm fed by a Pineapple Express atmospheric river hitting California and deluging the state, resulting in a seemingly Biblical flood, needing an ark, as the Central Valley turns into an inland sea.

arkstorm (plural arkstorms)

1. (meteorology) A very severe rainstorm lasting for many days, fed by an atmospheric river, causing massive flooding.

• ark storm, ARkStorm