ZCZC SPCSWOMCD ALL ACUS11 KWNS 022034 SPC MCD 022034 MNZ000-SDZ000-NDZ000-022200- Mesoscale Discussion 1915 NWS Storm Prediction Center Norman OK 0334 PM CDT Mon Sep 02 2019 Areas affected...Southeast ND...West-Central MN...Far Northeast SD Concerning...Severe potential...Watch likely Valid 022034Z - 022200Z Probability of Watch Issuance...95 percent SUMMARY...Strengthening MCS across central SD is expected to persist downstream in southeast ND, west-central MN, and far northeast SD. A downstream watch will likely be needed. DISCUSSION...Current storm motion takes the ongoing MCS across central ND to the edge of Severe Thunderstorm Watch 631 before 22Z. Convective inhibition currently remains in place over the downstream environment across southeast ND, west-central MN, and far northeastern SD. However, increasing moisture advection and diurnal heating will contribute to an erosion of at least some of this inhibition. In addition to the weakening convective inhibition and building instability, the strong warm-air advection is expected to persist. All of these factors combined with the organized character of the ongoing MCS suggest the severe threat will continue downstream. Some acceleration of the MCS is also possible along with higher probability for strong wind gusts at the surface. A downstream watch will likely be needed to cover the resulting severe weather threat. ..Mosier/Guyer.. 09/02/2019 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...MPX...FGF...ABR...BIS... LAT...LON 47309893 47729790 46999509 45629493 45419668 46019960 47309893 NNNN