ST. LOUIS, MO — The National Weather Service in St. Louis is warning about a possible glazing of ice on area roads during rush hour. They are encouraging some people to leave work early to avoid slick streets. Their forecast says that there may be freezing drizzle mixed with light snow from 4pm to 5pm Monday. A light glazing of surfaces is expected. Less than one inch of snow is forecast for St. Louis.
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— NWS St. Louis (@NWSStLouis) February 5, 2018
Monday night the first of two weather systems will swing through the area. The significant snowfall should stay well north of St. Louis Monday night into Tuesday morning. But there will be lots of clouds and cold.
The second system should bring some snow our way late Tuesday from the Texas panhandle. The day should be dry but snow and sleet are expected Tuesday night into Wednesday morning.
There are still lots of questions with the track of the storm. A shift in only 50 miles can mean a big difference. We know very little about the system until the energy comes over the Rockies and develops in the Great Plains. We are still in that unknown category.
Watch the power of the cold/dry high pressure to our north. This could push the system to the Plains deeper south. Right now I'm thinking snow and sleet develop late Tuesday afternoon with the bulk of the moisture Tuesday night. Amounts of precipitation may be in the 1" to 3" range. I'm thinking it should be on the low side of this range.