Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 PM EDT Mon Jul 02 2018 Valid 00Z Tue Jul 03 2018 - 00Z Thu Jul 05 2018 ...A heat wave continues from the Midwest to the Mid-Atlantic and Northeast through the 4th of July holiday... ...Wet snow is possible over the high elevations of the northern Cascades and northwest Montana... Hot an humid weather will continue to be the story across a large portion of the country from the central Plains northeastward into the Mid-Atlantic and New England as we head into the 4th of July holiday. Under the influence of a strong subtropical high pressure system, temperatures will remain more than 10 degrees above normal across New England. A weak cold front will offer only slight relief from the heat across the Great Lakes followed by New England on Tuesday. But the strong July sun will practically erase the slight cooling and return conditions to hot and humid on Independence Day. Along the Gulf Coast region, a weak low pressure system interacting with tropical moisture is forecast to move generally westward for the next couple of days, bringing thunderstorms with locally heavy downpours along the Louisiana coast tonight and into the Texas coast on Wednesday. Farther moisture from the western Atlantic associated with an inverted trough is forecast to reach the southeast U.S. coast on Wednesday. Meanwhile, a deep upper-level trough has been bringing much cooler than normal temperatures into the Pacific Northwest. In fact, wet snow is in the forecast over the high elevations of the northern Cascades and northwest Montana tonight. Over the northern Plains, showers and thunderstorms can be expected to form as the deep upper-level trough approaches during the next couple of days. Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php