Short Range Forecast Discussion...amended NWS Weather Prediction Center College Park MD 725 AM EDT Wed Sep 17 2014 Valid 12Z Wed Sep 17 2014 - 12Z Fri Sep 19 2014 ...Heavy rain possible over parts of the Southwest/Southern Rockies... ...Heavy rain possible over parts of the Western Gulf Coast... Moisture associated with Tropical Storm Odile will lift northward into the Southwest and aid in producing showers and thunderstorms with heavy rain over parts of the Southwest and the Southern Rockies through Thursday evening. A moderate risk of flash flooding is expected during this time frame, as several inches of rain are expected to fall across southeast Arizona and southern New Mexico. See Weather Prediction Center rainfall and excessive rainfall outlooks and discussions for more concerning this heavy rain threat. Meanwhile, upper-level energy over the Southern Rockies will move southeastward to the Central Gulf Coast by Thursday. Moisture-rich air over the Western Gulf Coast will interact with the upper-level energy to produce showers and thunderstorms over the Western Gulf Coast and the Southern Rockies through Thursday. In addition, an old front extending from the Southeast to parts of the Central Plains will also aid in focusing showers and thunderstorms over parts of the Middle/Lower Mississippi Valley through Thursday. Elsewhere, upper-level energy moving over the Mid-Atlantic/Southeast will aid in producing showers and thunderstorms over parts of the Southern Mid-Atlantic and the Southeast on Wednesday and Thursday. Furthermore, a front moving southeastward across the Great Lakes into the Northeast Coast/Mid-Atlantic by Thursday will cause rain will develop over parts of the Upper Great Lakes and move across Ontario into parts of Northern New England by Thursday morning. A deep upper-level trough over the Eastern Pacific will move onshore over California by Thursday. The energy will produce rain over parts of the West Coast Wednesday afternoon into Thursday morning. An area of showers and thunderstorms will develop over parts of the Great Basin on Thursday evening as the upper level system progresses inland. Ziegenfelder/Roth Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_wbg.php