Weather Alerts For Howell, 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 Pollen Level: medium-high Predominant Pollen: Maple, Cedar/Juniper and Poplar/Aspen/Cottonwood. The amount of pollen in the air for Tuesday will be rising and extend even further into the extremely high range. This increase is due to higher temperatures and windy conditions. This heavy increase in pollen concentration could very well cause problems for those who are allergic to airborne pollens.