Overview

• WPC says isolated to scattered flash flooding is likely across southwestern to south-central to southeastern Arizona through early evening, with 1–2 inches falling in an hour where storms train.
• Morning mesoscale guidance highlighted central and southern Arizona, including the Phoenix area and the I‑8/I‑10 corridors, for repeated cells capable of rates at or above 1 inch per hour.
• SPC notes a separate, localized severe risk with hail and damaging gusts possible in parts of southern Nevada, southeastern California, southwestern Utah, and southeast Arizona, with watches generally unlikely.
• Remnants of Raymond are feeding convection near El Paso, where forecasters flagged a conditional flash‑flood risk if training sustains rates over 0.5 inch per hour.
• An offshore coastal low produced extreme rainfall near Georgetown, South Carolina, with MRMS estimates of 6–10 inches since midnight and a continuing localized flash‑flood concern along the northern SC into southern NC coast.