[flqmyyqp] Flood prediction

Flood prediction at the bottom of the Mississippi is neat because prediction can be made weeks (the rain has fallen), months (the snow has fallen, it will eventually melt), or more (climatological forecast of a wetter than normal season).

Constantly broadcast some models, with probability distributions of river height.  This is probably already being done, though not obviously findable.  It ought to be, allowing a long advance warning for flood evacuation.

When was the first warning of the Mississippi trouble in May?