Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 319 AM EST Tue Nov 08 2016 Valid 12Z Tue Nov 08 2016 - 12Z Thu Nov 10 2016 ...Heavy rain possible over parts of the Central Gulf Coast... ...Heavy rain possible over the Olympic Peninsula in Washington State... ...Temperatures will be 15 to 25 degrees above average over parts of the Northern Rockies to the Upper Mississippi Valley... A front extending from the Great Lakes roughly southward to the Southern Plains will move eastward off most of the East Coast by Wednesday evening. Moisture will pool along the boundary aiding in the development of rain from the Great Lake to the Middle Mississippi Valley that will move eastward to the Northeast/Mid-Atlantic by Wednesday afternoon then beginning to move off the coast by Wednesday evening. Meanwhile, upper-level energy over the Central/Southern Plains will close off forming and upper-level low over the Lower Rio Grande Valley/Central Northern Mexico by Wednesday morning moving southwestward into Mexico by Wednesday evening. The energy will aid in producing showers and thunderstorms over the Southern Plains and Lower Mississippi Valley on Tuesday. The showers and thunderstorms will move southeastward to parts of the Central/Eastern Gulf Coast by Wednesday evening. In addition, showers and thunderstorms will remain over Western Texas through Wednesday into Thursday. In the meantime, a front just off the Pacific Northwest will move inland to the Northern High Plains/Great Basin by Wednesday. A plume of moisture will flow nearly parallel to the Northwest Coast and move slightly onshore by Wednesday morning before weakening significantly by Wednesday evening into Thursday. The system will produce rain over parts of the Olympic Peninsula through Tuesday night. Overnight Tuesday, rain will move onshore over the Pacific Northwest/Northern California Coast and slightly inland by Wednesday before waning to a small area over western Washington State by Wednesday evening. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php