Extended Forecast Discussion NWS Weather Prediction Center College Park MD 243 AM EDT Thu Jul 25 2019 Valid 12Z Sun Jul 28 2019 - 12Z Thu Aug 01 2019 ...Overview and Guidance/Predictability Assessment... A strong upper high will slowly migrate out of the Southwest and into the southern Rockies next week. Troughing will develop downstream over the East Coast but with heights near to above normal CONUS-wide. Generally weak surface fronts will traverse the US/Canadian border with area-wide light/modest rainfall but with locally heavier amounts. The models/ensembles agreed fairly well with each other such that a consensus blend approach served well as a starting point. ...Weather Highlights/Threats... Above average temperatures in much of the West and Northeast will shift to the east through the week. This will bring warmer temperatures to the Plains/Upper Midwest with cooler than average temperatures into the Pacific Northwest thanks to an incoming front. Precipitation will be focused along and to the south of a wavy front stretched from the Rockies Sunday to the Great Lakes/Northeast Mon/Tue where it may linger into Thursday. Weak/dissipating front over Florida will boost afternoon convection there while the Southwest will see an increase in monsoonal-driven showers/storms as the upper high moves to the east of Arizona, allowing Mexican moisture to advect northward. Fracasso Additional 3-7 Day Hazards information can be found on the WPC medium range hazards chart at: https://www.wpc.ncep.noaa.gov/threats/threats.php WPC medium range 500mb heights, surface systems, weather grids, quantitative precipitation, winter weather outlook probabilities and heat indices are at: https://www.wpc.ncep.noaa.gov/medr/5dayfcst500_wbg.gif https://www.wpc.ncep.noaa.gov/medr/5dayfcst_wbg_conus.gif https://www.wpc.ncep.noaa.gov/5km_grids/5km_gridsbody.html https://www.wpc.ncep.noaa.gov/qpf/day4-7.shtml https://www.wpc.ncep.noaa.gov/wwd/pwpf_d47/pwpf_medr.php?day=4 https://www.wpc.ncep.noaa.gov/heat_index.shtml