Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 309 AM EDT Thu Oct 29 2026 Valid 12Z Thu Oct 29 2026 - 12Z Sat Oct 31 2026 ...Snow will develop over parts of the higher elevations of the Cascades, Northern Intermountain Region/Northern Rockies on Thursday, tapering off on Friday... ...There is a Slight Risk of excessive rainfall over parts of the Southern High Plains on Thursday and over parts of the Southwest on Friday and Saturday... A quasi-stationary area of low pressure just off the Pacific Northwest Coast will stream moisture into the Northwest Coast, producing rain and highestïelevation snow over the Cascades and Northern Intermountain Region on Thursday into Friday evening. Furthermore, a front extending from the Upper Great Lakes to the Southern High Plains will advance eastward off the Northeast Coast by Friday evening. The system will produce rain with embedded thunderstorms over the Upper Great Lakes and rain over the Lower Great Lakes through late Thursday night. Additionally, scattered light rain showers will develop over parts of the Northeast through Friday evening. Easterly flow off the Atlantic will bring rain with embedded thunderstorms over parts of Florida through Saturday. In addition, upper-level energy will move over the Southern High Plains, creating heavy rain over the region Thursday into Friday. Therefore, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over the Southern High Plains with these