URGENT - WEATHER MESSAGE National Weather Service Buffalo NY Niagara-Orleans-Monroe-Northern Erie- Including the cities of Niagara Falls, Medina, Rochester, and Buffalo 245 PM EDT Fri Sep 18 2020 ...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM EDT SATURDAY... * WHAT...Temperatures in the mid to upper 30s well inland from the Lake Erie and Lake Ontario shorelines will result in frost formation. * WHERE...Niagara, Orleans, Monroe, and Northern Erie counties. * WHEN...From midnight tonight to 8 AM EDT Saturday. * IMPACTS...Frost could kill sensitive outdoor vegetation if left uncovered. PRECAUTIONARY/PREPAREDNESS ACTIONS... Take steps now to protect tender plants from the cold.