Apex Wx

Heavy Rainfall Raises Flash Flood Risk Across Parts of the Central and Southern United States
Heavy rainfall may lead to localized flash flooding across portions of the Midwest, Gulf Coast, Southeast, and Four Corners through today. The greatest risk extends from southeastern Minnesota through southern Wisconsin, Illinois, eastern Missouri, Iowa, western Indiana, and northwestern Kentucky, where repeated thunderstorms could produce intense downpours over areas with low flash flood guidance. Additional heavy rain is expected along a nearly stationary front across the Gulf Coast and parts of the Southeast, where abundant moisture and unstable air will support slow moving thunderstorms capable of producing excessive rainfall. Across eastern Arizona, New Mexico, Colorado, and nearby High Plains locations, monsoon driven thunderstorms may also trigger isolated flash flooding, especially in vulnerable low lying areas, burn scars, and normally dry washes.

Hot, Dry Weather and Isolated Thunderstorms Increase Fire Weather Concerns Across the West
Warm, dry weather will continue across much of the western United States today as a strong weather system approaches the Pacific Northwest. Although no critical fire weather areas have been identified, locally elevated fire danger is expected across parts of the Intermountain West where low humidity, hot temperatures, and occasional breezy conditions could support the rapid spread of any new wildfire starts. Isolated dry thunderstorms may develop across portions of central and eastern Idaho and southwest Montana, but storm coverage is expected to remain limited. Farther east, thunderstorms in Wyoming are expected to produce more rainfall, reducing wildfire concerns. Monsoon thunderstorms will also continue across southeastern Arizona and parts of Colorado and New Mexico, bringing beneficial rainfall along with occasional lightning.