Extended Forecast Discussion NWS Weather Prediction Center College Park MD 158 PM EDT Sun Jun 06 2021 Valid 12Z Wed Jun 09 2021 - 12Z Sun Jun 13 2021 ...Locally Heavy Rainfall from the Tennessee/Ohio River Valleys to the Central Appalachians and Mid-Atlantic... ...Much Above Normal Temperatures for the North-Central U.S.... ...Guidance/Predictability Evaluation... The WPC medium range product suite was primarily derived from a composite blend of reasonably well clustered guidance of the 06 UTC GFS, 00 UTC ECMWF/UKMET/Canadian and the 13 UTC National Blend of Models Wednesday-Friday before moving to the compatible GEFS/NAEFS/ECMWF ensemble means next weekend amid gradually growing forecast spread. The pattern overall offers above normal forecast predictability/continuity and remains consistent with 12 UTC guidance. ...Weather Highlights/Hazards... Much above normal to near record warmth will persist next week for the northern Rockies/Plains and the Upper Midwest. Upper trough ejection over the West Wed-Thu may then focus north-central U.S. convection. Unsettled weather meanwhile with a slowly ejecting upper level trough/low may spread locally heavy midweek TN and OH River Valleys rainfall to the central Appalachians and Mid-Atlantic later week coincident with a settling of a temperature moderating backdoor front. A storm system slowly approaching the West Coast may bring precipitation and unsettled weather to the Pacific Northwest by next weekend. Schichtel Additional 3-7 Day Hazard information can be found on the WPC medium range hazards outlook 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