SNOW HEAVY AT TIMES TODAY AND TONIGHT WITH 15 TO 25 CENTIMETRES LIKELY.
A DEVELOPING LOW PRESSURE AREA EMERGING FROM KANSAS TODAY WILL MOVE TOWARDS THE GREAT LAKES TONIGHT. SNOW AHEAD OF THIS SYSTEM WILL BEGIN LATER THIS EVENING AND TONIGHT AND BECOME HEAVY AT TIMES TUESDAY. SNOW WILL CONTINUE THROUGHOUT THE DAY TUESDAY INTO TUESDAY NIGHT. UPWARDS OF 20 TO 25 CENTIMETRES ARE LIKELY IN THESE AREAS BY OVERNIGHT TUESDAY NIGHT.