WMS:OC Unit Hydro Design Storms

Define the point precipitation values that WMS will use to compute the design storm by selecting Define Storm in the OC Hydrograph menu. There are three types of storms: single-day event, multi-day event with flow-through detention, and multi-day event with flow-by detention. Choose a frequency and storm duration (for multi-day events). The antecedent moisture condition (AMC-I, AMC-II, AMC-III) that should be used to compute losses is displayed.

If the design storm event is changed, WMS automatically updates the effective precipitation for all sub-areas in which effective precipitation was previously defined.

Related Topics

• Effective Precipitation