Baltimore, MD – A migrating heat dome is set to drive temperatures from the mid-80s to near 100 degrees along the Atlantic Coast within days, bringing a stretch of early-season heat and daily storm chances that could disrupt travel from Maryland to Florida through early April.
According to the National Weather Service Climate Prediction Center, a 70 to 80 percent probability of above-normal temperatures will dominate the Atlantic seaboard from April 3 through April 9. Highs from Baltimore and Washington down through the Carolinas and into Jacksonville are expected to run 10 to 20 degrees above seasonal averages, with upper 80s common in the Mid-Atlantic and 90s to near 100 degrees across the Southeast. Overnight lows will remain warm and humid, limiting relief.
The coastal corridor sits along the eastern edge of the heat dome, where deep Atlantic and Gulf moisture will fuel repeated rounds of showers and thunderstorms.
Rain chances increase along the entire I-95 corridor, with the greatest coverage during afternoon and evening hours. Heavier downpours could impact major metros including Washington, Richmond, Raleigh, Charleston, Savannah, and Jacksonville, leading to reduced visibility and water-covered roads during peak travel times.
Residents are urged to stay hydrated, limit outdoor activity during peak heat, and avoid driving through flooded roadways.
This pattern is expected to persist through April 3–9, with additional advisories likely as storm timing and rainfall totals become more defined.
