Lalith 0 Report post Posted May 14 Hi, I have a working Modflow-NWT steady state model. However, it does not trace capture zones using modpath. Error message states as: " RUN STOPPED because cell thickness is negative" Does modpath work with Modflow-NWT? Any help is appreciated. Thank you, Lalith Quote Share this post Link to post Share on other sites
Bri 0 Report post Posted May 15 I did a little looking on the USGS website, and it looks like it MODPATH works with MODFLOW-NWT, but you need to set IPHDRY to a positive number in the UPW package. I got that info from here: https://water.usgs.gov/water-resources/software/MODPATH/UsingModpathWithModflow-NWT.txt Quote Share this post Link to post Share on other sites
Lalith 0 Report post Posted May 15 Than you Bri. That works. Wonderful solution. Quote Share this post Link to post Share on other sites
Bri 0 Report post Posted May 15 No problem! I'm glad I could help. Quote Share this post Link to post Share on other sites
