Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 408 PM EDT Tue Jun 25 2019 Valid 00Z Wed Jun 26 2019 - 00Z Fri Jun 28 2019 ...Relatively quiet weather over much of the country although the best chance of thunderstorms is expected across the northern Plains to the upper Midwest... Overall, a quieter weather pattern is in store for the U.S. over the next couple of days, as the trough over the Great Lakes lifts into Canada and a broad upper-level high pressure builds into much of the eastern two-thirds of the country. Thunderstorms will still be present over portions of the central and southern Plains into the Mississippi Valley but they will be more scattered in nature. By Wednesday into Thursday the best chance of showers and thunderstorms will shift into the northern Rockies and the northern High Plains. This is in response to the approach of yet another deep upper-level low from the Pacific Northwest as a surface low pressure center gradually develop over Wyoming. The upper-level low will also bring another period of cool and damp weather into the Pacific Northwest, down into northern California, and western part of the Great Basin. Over the Northeast, showers and thunderstorms are expected to move east of the region by Wednesday morning as the associated frontal system moves off the coast. Heat and humidity will begin to build along the East Coast with daily high temperatures reaching the 90's up to the New York City area. Summer heat will prevail across the Plains with highs reaching the upper 90's over the central Plains. Farther south, a weak low pressure center could form and move from east to west across northern Florida late Wednesday into Thursday. This feature could bring some locally heavy rain across northern Florida and the eastern Gulf Coast. Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php