a Better Bubble™

Frost Advisory issued April 18 at 2:41PM CDT until April 19 at 9:00AM CDT by NWS

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM CDT TUESDAY... * WHAT...Temperatures as low as 31 will result in frost formation. * WHERE...In Missouri, Saint Charles MO, Saint Louis City MO and Saint Louis MO Counties. In Illinois, Madison IL and Saint Clair Counties. * WHEN...From 2 AM to 9 AM CDT Tuesday.