Watershed Tool Troubleshooting

[ThiPham12]

Hi Everyone, 

I created a set of watersheds using a set of pourpoints raster, which have been snapped to the location of highest accumulation using the snap pourpoint tool and the Watershed tool. When I generated the watershed, one of the watersheds has void spaces within the watershed. I was wondering if anyone have faced this problem before and how you resolved it? I attached a picture of the watershed below. 

[DanPatterson]

Did you fill "sinks" before running the flow direction tool? Do you have a depressionless dem?

How Flow Direction works—ArcGIS Pro | Documentation

Creating a depressionless DEM—ArcGIS Pro | Documentation

[tzz_12]

After using the fill tool with the directional raster, there were six instances of sinks filled-in. However, the resulting dem raster is not located where the original dem is located but at Hudson Bay. I am wonder how I am using the fill tool incorrectly? Thanks for your help!

[DanPatterson]

I suspect your map and input files and output file were in different coordinate systems, use the Environments tab on tools to make sure you get your coordinate systems correct

[ThiPham12]

Hi Dan,
I was able to successfully use the fill tool on my original raster, but there was no depression found. Do you know if the fill tool should also work on a directional raster? If there is no depression, do you have other ideas of what may have caused the void spaces in the watershed? I was wondering, is there a tool to fill in void spaces in a polygon?

Thank you so much for your help!

[JanCilliers_76]

Good day

Used the d8 flow direction from a 5m dem to create the watershed, but it calculated only 1 bock or a small area around the stream. A can see the watershed must be a lot bigger with the stream data I have.