Weather Alerts For Warren, MI

# HEADLINE -------------------- FREEZE WARNING REMAINS IN EFFECT UNTIL 11 AM EDT THIS MORNING # DETAILS -------------------- WHAT Sub-freezing temperatures as low as 19. WHERE A portion of southeast Michigan. WHEN Until 11 AM EDT this morning. IMPACTS Frost and freeze conditions could harm sensitive outdoor vegetation. ISSUED AT Monday, April 20, 2026 at 2:29 AM EDT ISSUED BY National Weather Service Detroit/Pontiac MI HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Take steps now to protect tender plants from the cold. # AREAS AFFECTED -------------------- Macomb, Genesee, Lapeer, Lenawee, Livingston, Monroe, Oakland, Saginaw, Shiawassee, St. Clair, Washtenaw, Wayne Including the cities of Saginaw, Owosso, Warren, Pontiac, Detroit, Monroe, Ann Arbor, Lapeer, Howell, Port Huron, Adrian, and Flint

Pollen Index: 9.8 Pollen Level: high Predominant Pollen: Maple, Ash and Poplar/Aspen/Cottonwood. Pollen concentrations for Tuesday will be increasing over today's levels and extend even further into the extremely high range. This higher level is caused in part by higher temperatures and windy conditions. These overall conditions could make it a bit more difficult for those who are allergic to airborne pollens.