Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 417 AM EDT Sun Oct 09 2016 Valid 12Z Sun Oct 09 2016 - 12Z Tue Oct 11 2016 ...Hurricane Matthew is forecast to become a post tropical extratropical off the Carolina Coast... ...Heavy rain possible across parts of the Pacific Northwest... ...Snow for parts of the Northern Rockies/Northern High Plains... Hurricane Matthew is forecast to become a post-tropical extratropical low off of Cape Hatteras and move eastward away from the East Coast. The heavy rain associated with the storm will slowly end over the Mid-Atlantic Coast by Sunday afternoon and over parts of Cape Cod by Sunday night. The rain along the Northeast Coast will end by Monday afternoon. In addition, the front over the Northeast into the Mid-Atlantic will move off the coast by Sunday morning. For more information on specific threats associated with Hurricane Matthew along with its most current track and intensity, see the National Hurricane Center (www.hurricanes.gov). Meanwhile, upper-level energy over the Southern Rockies/Southern Plains will move northeastward to parts of the Middle Mississippi/Western Ohio Valleys by Monday. Moisture over the Southern High Plains into the Southwest along with the upper-level energy will aid in producing showers and thunderstorms over parts of the Southwest eastward to parts of the Southern High Plains, on Sunday morning, that will move into parts of the Central Plains/Middle Mississippi Valley by Monday evening. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php