Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 227 AM EDT Thu Jun 7 2018 Valid 12Z Thu Jun 7 2018 - 12Z Sat Jun 9 2018 ...Upper level ridge over the central U.S. with periods of stormy weather from the Rockies to the Ohio Valley... A strong upper level high will remain in place across the southern Great Plains, supporting summer-like temperatures across much of the Plains and also for much of the Intermountain West. Showers and thunderstorms developing on Thursday are expected to keep temperatures lower across portions of the central Great Plains and mid to lower Missouri valley. The hottest weather is expected for the lower elevations of the Desert Southwest and western High Plains, with some 100+ degree highs likely. A series of upper level disturbances moving across the northern tier of the nation are expected to affect portions of the northern Rockies into the Great Plains with showers and thunderstorms both days. Episodes of severe weather are possible with the thunderstorm complexes that develop. Across the western U.S., a Pacific front will slow move inland across the Pacific Northwest late this week, bringing showers into western Washington, Oregon and far northwestern California on Friday. Across the eastern states, temperatures will gradually moderate to more typical June averages by Friday. With the exception of Florida, much of the eastern U.S. will remain dry through Thursday, before afternoon and evening thunderstorms become more widespread on Friday. Across Florida, a lingering frontal boundary is forecast to produce showers and thunderstorms across the state over the next couple of days. D. Hamrick Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php