21' - Major Flooding: Levee overtopping, with failures likely along both sides of the river between US-101 and Trimble flowing in a northerly direction.<br><br>20' - Moderate Flooding: Levee overtopping imminent. Highest risk areas are between US-101 and Trimble.<br><br>19' - Minor Flooding: High flows with heavy debris might cause localized blockages to cause overtopping of levees.<br><br>17' - Action Stage: 7256 cfs<br><br>