Fog, Southwest Heat and Tropical Watch

Dense fog advisories are in effect across parts of the Great Lakes and Upper Midwest (including Detroit, Ann Arbor, Monroe and portions of northeast Wisconsin and northwest Minnesota), producing reduced visibility this morning and urging commuters to allow extra travel time. Temperatures remain above seasonal normals — highs in the 70s for much of the Midwest and coastal California, upper 70s–90s in the Southeast, and a sharp warm-up in Phoenix to the low‑ to mid‑100s midweek before a late‑week cooldown. Scattered showers and thunderstorms are likely today into Wednesday for parts of Michigan and higher terrain, with additional shower chances later in the week for San Diego and the Southeast. A front moving through Friday brings a marginal risk for excessive rainfall and isolated flooding for parts of the Savannah region. Tropical activity is being monitored as Hurricane Gabrielle passes east of Bermuda and an area east of the Lesser Antilles could develop into a tropical depression later in the week. Separately, President Trump suggested a possible link between Tylenol use in pregnancy and rising autism rates — a connection experts say remains unproven.