Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 358 PM EDT Mon Oct 24 2016 Valid 00Z Tue Oct 25 2016 - 00Z Thu Oct 27 2016 ...Heavy rain possible over parts of the Upper Mississippi Valley... ...Heavy rain possible for parts of the Pacific Northwest and Northern Sierras... ...Snow possible for the highest elevations of Northern New England... Low pressure over the Northern High Plains will move southeastward to the Middle Missouri Valley by Wednesday. The system will produce rain over parts of the Northern Plains into parts of the Middle Missouri Valley overnight Monday into Tuesday morning that will move into the Upper Mississippi Valley/Upper Great Lakes/Western Ohio Valley by Wednesday morning. Unsettled weather over the eastern Pacific with a deep low pressure system offshore is expected to bring periods of rain to the Pacific Northwest early this week. Additional showers and storms are likely to develop over the Intermountain West, with snow for the highest mountains. Windy conditions are also expected for coastal areas from northern California to Washington state. By Wednesday morning, surface cyclogenesis over the Midwest states is expected to result in numerous showers and some storms. Strong thunderstorms are possible south of the warm front that will lift northward towards the Ohio Valley, and a cold rain across Wisconsin and Michigan. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php