Fig. 1: Changes in Mean Annual MCS and NON-MCS Precipitation.

Mean annual precipitation stratified by event type for (a–c) HIST and the change in mean annual precipitation relative to HIST for (d–f) FUTR 4.5 and (g–i) FUTR 8.5. Event types include (a, d, g) ALL events, (b, e, h) MCS events, and (c, f, i) NON-MCS events (i.e., Precipitation from ALL events - Precipitation from MCS events). Significant differences relative to HIST are noted in (d–i) using the Mann–Whitney U test (p < 0.05). The subregions in (a) are the (i) Northern Plains, (ii) Southern Plains, (iii) Midwest, (iv) Southeast, and (v) Northeast. The eastern CONUS (ECONUS) is defined as the combination of regions i–v.