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Simulated radar through 9pm EST this evening: The storm system that brought significant snow accumulations to the Central Plains and severe weather to portions of the area over the weekend is tracking east of the area, however, back-side activity will linger through the day with scattered rain showers/drizzle likely along and south of the I-70 corridor while activity north of this corridor in IL/IN will continue to transition to snows this morning. Lake effect snow showers off Lake Michigan will develop this morning and persist through this timeframe. Some warming late this morning into mid afternoon will likely shift some snow activity back to rain in central IN and northern OH but temperatures will begin falling again into late afternoon and evening, allowing for these scattered rain showers to begin transitioning back to snow. By evening, scattered pulses of rain showers/drizzle will be likely near the Ohio River, a mixed bag of precipitation northward to the I-70 corridor, then scattered pulses of snow showers north of this corridor. Overall, a dusting of snow is possible over the northern areas, mainly on elevated surfaces as temperatures remain marginal.
Simulated radar from 9pm EST this evening through 12pm EST Wednesday: Progressing through the evening hours, colder air will work in from the north and continue the transition to snow showers into the far southern areas of the region as well. Snow shower activity will weaken overnight with even some possible drizzle mixing in given the dendritic growth zone will not be saturated. Pockets of drizzle/snow flurries will hang around into Tuesday morning. Treatment on parking lots/pavement is recommended as slick spots will be possible tonight into Tuesday morning with temperatures hovering around freezing. An upper level low will strengthen across the area Tuesday afternoon into Tuesday night, which will help to squeeze out any residual moisture in the atmosphere and increase snow shower activity across the area. As the low lifts east Wednesday morning, the snows will lose coverage once more and begin to lift out of the area. A few more problems with slick spots will be possible again into Tuesday night and Wednesday morning as temperatures fall well below freezing.
Total snowfall through Wednesday morning: A general coating of snow is expected for most areas, especially on grassy surfaces. As mentioned above, slick spots will be possible, especially tonight and Tuesday night. Lake effect enhancement in northwestern IN (LaPorte to Lake counties) will likely lead to pockets of 1-2″ of snow.
A better chance for snow will come Thursday as a band of precipitation develops ahead of a cold front working into the region. Locations generally along and north of the I-70 corridor could see 1-2″ of snow before the system exits into Thursday night.
Total precipitation through the next 7 days: Current consensus keeps precipitation amounts around 0.3″ or less across the area. We are still tracking the potential for a winter storm into Saturday, but most model guidance at this time is keeping a majority of the precipitation just south of the region. However, this system is still several days out and model guidance will continue to waver with different solutions over the next few days as they try to decipher the strength of the high pressure system to the north. Our favored model right now, the GFS Parallel continues to develop snow over the southern plains and clips the southern portions of the area; Something to keep in mind. Definitely keep checking back as we track this potential storm.
High temperatures over the next 4 days: The cold front passed through the area yesterday into last night, which has dropped temperatures substantially across the area. Most locations today will not climb out of the 30s for highs with Tuesday being even colder with temperatures <35ºF.
Low temperatures over the next 4 mornings: With colder air funneling into the region from the northwest, morning lows Tuesday will largely be below freezing for the entire area. This will be especially true Wednesday morning with most in the 20s.
Wind forecast over the next 4 days: Winds will be substantially weaker today and especially Tuesday as the storm system exits to the east. Winds will likely still be a tad gusty right off the lake but inland areas should see gusts upwards of 20mph max.
High/low temperatures over the next 10 days for Columbus (OH), Indianapolis, Springfield and Davenport: A blast of cold air following behind our storm system will be here to stay this week with below normal temperatures.
If you have any questions do not hesitate to reach out! Have a great day!