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Heat Records in Southern California as Fronts Raise Storm and Flood Risks Across U.S.

A shift in upper‑level flow is breaking the West heat dome, sending moisture inland that elevates heavy‑rain and flash‑flood threats in the central and eastern states.

Overview

  • Widespread heat alerts remain in parts of California and the inland West, with Southern California reporting multiple record highs and Extreme Heat Warnings in place as of Thursday.
  • Forecasters expect a notable cool‑down for parts of Northern California this weekend as onshore and westerly winds return and push daytime temperatures down by 10–15 degrees.
  • A series of mid‑level disturbances and cold fronts is increasing scattered to numerous showers and thunderstorms across the Southeast, Central and Eastern U.S., with slow or training storms creating pockets of heavy rain and localized flash flooding.
  • The Northern Plains and Upper Midwest face an elevated severe‑weather threat this week, and the National Hurricane Center says the Atlantic basin is unusually quiet with no tropical development expected over the next seven days.
  • Internationally, India’s Meteorological Department warns of isolated to very heavy rainfall for Odisha driven by a cyclonic circulation over East Uttar Pradesh and adjoining Bihar, raising short‑term flood concerns there.