The National Weather Service in St. Louis, MO, is bracing residents for a snowy weekend, as a Winter Weather Advisory comes into effect from midnight tonight until midnight CST tomorrow night, with expectations of snow accumulations ranging between 2 and 4 inches in parts of south central and southwest Illinois and east central and northeast Missouri.
As detailed by the National Weather Service, the snow will likely begin before 3am, potentially mixed with rain between 3am and 4am and then continuing as snow after 4am, with a 100% chance of precipitation and new snow accumulation of around an inch possible; the conditions are expected to cause slippery road conditions requiring motorists to slow down and use caution while traveling, the snow, possibly mixed with rain and sleet, will continue before 11am tomorrow, then between rain and snow until noon after which it will turn into rain with another 1 to 3 inches of new snow and sleet accumulation possible.
By tomorrow evening, the wintry mix is predicted to transition to mostly rain, with the likelihood of rain mixing with snow after 9pm and tapering off to leave behind little to no new snow accumulation; the forecast projects mostly cloudy skies with a high near 30 on Sunday, signaling the onset of cooler temperatures and a continuing chance for snow into the following week.
"Plan on slippery road conditions," cautions the NWS advisory, noting that the latest road conditions can be obtained at traveler.modot.org/map or by calling 1-888-275-6636 in Missouri, and www.gettingaroundillinois.com in Illinois, reminding travelers to prepare for potentially hazardous travel. Looking ahead, the Weather Service's Hazardous Weather Outlook foresees continued winter weather challenges, including accruing snow through tomorrow evening with full details available on their site and spotters are invited to contribute by reporting snowfall amounts to NWS St. Louis.
