Message 12003

Available since version: 2026.2.0

ERROR 12003 - Following water quality calculations a NaN was detected in cell <2d_cell_id>, layer <layer_id>, wq constituent <wq_constituent>.

Description

A NaN (not-a-number) value was detected in the water quality constituent concentrations following a water quality model update. The cell, layer and constituent index are shown in the message. This indicates an model instability has occured during the water quality update.

Suggestions

Review the water quality log file for errors or warnings preceding this message.