ZCZC SPCSWOMCD ALL ACUS11 KWNS 152052 SPC MCD 152052 OHZ000-MIZ000-INZ000-ILZ000-MOZ000-160245- Mesoscale Discussion 0093 NWS Storm Prediction Center Norman OK 0252 PM CST Mon Feb 15 2021 Areas affected...central/northern Illinois...southern Lower Michigan...northern/central Indiana...northern Ohio Concerning...Heavy snow Valid 152052Z - 160245Z SUMMARY...Moderate to occasionally heavy snow will overspread much of the discussion area from the southwest over the course of the afternoon/evening. Localized areas will received 1-2+ inch per hour snow rates. DISCUSSION...Broad, large-scale lift associated with a mid-level wave across Kansas/Oklahoma continued to maintain a broad precipitation shield across much of the Midwest currently. The precipitation continues to fall as snow (heavy at times) across much of southern Illinois and Indiana. The precip shield is outpacing many models in its northeastward progression and will overspread much of the discussion area from south to north over the next several hours. Within the precipitation shield, it appears that a subtle shortwave over western Tennessee has provided forcing aloft for enhanced snowfall rates across southern Illinois and Indiana. Most of the heavy snow reports have been concentrated in this area, and localized banding may result in 2+ inch/hour rates as this area spreads northeastward into Indiana/northwestern Ohio over the course of the afternoon. Farther west, a few bands have also produced heavier snow from the St. Louis area through central Illinois. This axis of snow should shift northeastward toward the Chicago Metro area and portions of southern Lower Michigan over the next several hours, with 1 inch/hour rates probable beneath heavier bands. ..Cook.. 02/15/2021 ...Please see www.spc.noaa.gov for graphic product... ATTN...WFO...CLE...ILN...DTX...IWX...GRR...IND...LOT...ILX... LSX...DVN... LAT...LON 38879034 39139087 39659100 40539065 41498958 42318772 42858529 42878301 42098146 41338118 40598200 40338307 40158737 39548925 38879034 NNNN