Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 414 PM EDT Wed Jun 17 2020 Valid 00Z Thu Jun 18 2020 - 00Z Sat Jun 20 2020 ...Cool, wet, and dreary weather continues over the Mid-Atlantic and Carolinas, showers and storms likely in central and southern Florida... ...Cool to chilly conditions continue in the northern Rockies as late-season high-elevation snowfall slowly tapers off... ...Hot conditions through the North-Central U.S.; severe storms remain possible from the central Plains to upper Midwest; fire weather danger in the Southwest and central High Plains... The upper-level low responsible for the soaking rainfall in the Carolinas the last several days will gradually weaken as it begins to move slowly toward the north. The associated scattered showers and thunderstorms are expected to edge slowly to the north and west across the Mid-Atlantic, central Appalachians, eastern Ohio Valley and into the lower Great Lakes during the next couple of days. The highest chance of rain is expected to be across parts of the Mid-Atlantic and along the central and southern Appalachians where an inch or more of rainfall can be expected through Friday evening. Meanwhile, off-and-on showers and thunderstorms will continue across the Carolinas. Farther south, a good chance of showers and thunderstorms will linger over much of the Florida Peninsula through Friday. Much of the East Coast will remain cool and damp under the slow-moving upper low. The exception will be in New England where afternoon high temperatures will soar into the 80s. In contrast, hot conditions will spread eastward from the northern Plains toward the upper Midwest where high temperatures soaring well up into the 90s are forecast for the next couple of days. Some parts of the central High Plains could also make a run for the triple digits. Severe weather will again be possible from the central Plains to the upper Midwest on Thursday as a cold front approaches. Behind the cold front, a large cold air mass will dominate much of the western U.S. In fact, more mountain snow can be expected over portions of the northern Rockies through Thursday morning before tapering off later on Thursday. Many places in this area will see temperatures more than 20 degrees below normal during the day. Meanwhile, much of the West Coast should remain rain-free through Friday. In the Southwest, elevated to critical fire weather conditions will continue due to prolonged breezy and very dry conditions. Red Flag warnings are in effect for California's Sacramento Valley, across eastern Arizona, eastern Colorado, and into the central High Plains. Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php