WMS:HEC-HMS Defining the Meteorological Model

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You can define meteorologic data for your model by selecting the Meteorologic Parameters menu item from the HEC-HMS menu.


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Selecting this menu item will bring up the HMS Meteorological Model dialog. This dialog is used to assign precipitation data to all the basins in the model.


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The same precipitation method must be assigned to all the basins in your HMS model. The precipitation method you choose should be based on the type of analysis you want to run. If you have rainfall gage data for your watershed, you can use the user hyetograph or the user gage weighting method. If you want to create a synthetic storm with a known exceedance probability, select the frequency storm method. If you want to model a standard project storm, select the standard project storm or the SCS hypothetical storm method. You should only use the "No Precipitation" option if your HMS model does not have any basins. See the topics below for more detailed information about the HMS Meteorological Model dialog.


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