Good afternoon everyone! We continue to track light snows progressing across MO with light rain showers along its southeastern periphery in southeastern MO as of 4:05pm CST. Over the course of the evening into tonight, this activity will gradually work eastward with a gradual transition to snow showers likely in southeastern MO as we head into tonight.
Simulated radar through 6am CST Tuesday: Light snows work west to east across the state, gradually weakening in coverage across the western/northern areas over the next several hours. During the mid to late evening hours, we’ll still note a band of light snows generally along and south of the I-44 corridor while light rains will hold on near the Bootheel. As we progress into tonight, snows will continue to lift east with most areas dry along the I-44 corridor as we approach 12am CST tonight. Light rain showers will be transitioning to a mix of rain and snow overnight in the Boot Heel before all activity pushes out of the state to the east by 6am CST Tuesday.
Total additional snowfall through 6am CST Tuesday: In general, additional light snow accumulations of 0.75″ or less can be expected for most places within the dark circled region while we do note an area of enhanced frontogenesis in the blue circled area that can bring 1″+ more of snow before the snows exit early morning. Locations that are unlikely to get much in the way of any additional snow accumulation include far northern MO with most of the snows suppressed to the south at this point and the Boot Heel where temperatures will remain largely warm enough to stay as rain. However, a brief turnover to snow is likely before coming to an end.
With the snows that have already fallen and the additional snow accumulations expected, we wanted to highlight the continued risk for slick spots through tomorrow morning. The best potential for slick spots on the roadways through this time period is within the dark circled region mentioned above. As the night progresses, temperatures will fall into the upper teens due to fresh snow cover and the passage of the storm system. This will allow for any untreated surfaces and/or wet roadways to possibly become slick due to the formation of black ice. Definitely be wary if you are heading out through Tuesday morning in these areas. While temperatures will drop close to freezing, the Boot Heel is likely to only have patchy slick spots, pending any snows and wind gusts upwards of 25mph that can help to dry up surfaces.
If you have any questions do not hesitate to reach out! Have a great evening!