Strong high pressure aloft will remain across the southern Plains into the Southeast with a weak upper low near the southern California coast. Hot and dry conditions with near record setting temperatures are likely across the southern Plains, the southern Appalachians, Carolinas, and Georgia, but winds are likely to remain light overall. Isolated dry thunderstorms will be ongoing this morning across the Transverse Ranges of southern California, with thunderstorms becoming scattered and a mix of wet and dry this afternoon across much of central and southern California. Isolated mixed wet and dry thunderstorms likely across portions of the southern Great Basin on the monsoon periphery, with wet monsoon thunderstorms across much of Arizona, New Mexico, and southern Colorado. Debris flows will be possible on recent burn scars such as the Hermits Peak and Black Fires. To the north, breezy and dry conditions will develop across portions of eastern Montana and eastern Wyoming. Scattered showers and thunderstorms will develop along a cold front from the central Plains to the Mid-Atlantic and Northeast with the heaviest rain in the Mid-Atlantic. A warming and drying trend will begin across south-Central Alaska and the central and eastern Interior, with isolated mixed wet and dry thunderstorms in the afternoon across south-central Alaska.