WEATHER SUNDAY MAY 26 2024 Severe weather and tornados Southern Great lakes to Kentucky and Tennessee...Delays into Chicago and KBNA .... Dry west coast

Severe weather and heavy rain chances shift into the Mid-Mississippi, Ohio and Tennessee valleys today before progressing into the Mid-Atlantic, Southeast, and Gulf Coast on Memorial Day... ...Dangerous and potentially record-breaking heat continues across parts of Texas, the western Gulf Coast, and southern Florida... ...Active weather returns to the southern Plains on Tuesday with additional chances for severe weather and flash flooding... An organizing storm system over the central U.S. is responsible for numerous thunderstorms stretching from Kansas/Missouri to the Edwards Plateau of Texas. Boundaries aiding this convection include a dryline extending southward through the southern Plains and a slowly lifting warm front stretching from the central Plains through the Ohio Valley. Current storms are expected to grow upscale and merge into a larger complex of thunderstorms by morning while swinging through parts of Missouri, Illinois, western Kentucky, and neighboring states. Damaging wind gusts, large hail, and tornadoes are possible. Additionally, heavy rain may lead to scattered instances of flash flooding with this initial burst of thunderstorms. By the afternoon hours another round of showers and thunderstorms are expected to develop along a cold front and impact similar regions, with the severe threat shifting further east across the Ohio Valley overnight. More chances for all modes of severe weather are possible, with repeating storms potentially increasing the flash flooding threat throughout parts of Kentucky and Tennessee. Area of heavy rain may also lead to flash flooding concerns near the low pressure center as it progresses toward southern Wisconsin tonight. As the center of the storm system enters the Great Lakes on Monday and the attached cold front extends from the Ohio Valley to the southern Plains, severe weather and heavy rain chances will focus along the eastern U.S. and Gulf Coast States. More specifically, the greatest chances for intense rainfall rates leading to flash flooding exists across eastern Pennsylvania and neighboring section of southeast New York and northwest New Jersey, where a Slight Risk (level 2/4) of Excessive Rainfall is in effect on Memorial Day. Severe thunderstorms are most likely across the Mid-Atlantic as well as an area stretching from the Lower Mississippi Valley to the Southeast. Damaging wind gusts and hail are the primary potential hazards. Residents and visitors planning to enjoy outdoor holiday barbecues and parties should remain weather aware and have multiple ways to receive warnings.