Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 358 AM EDT Tue Sep 15 2020 Valid 12Z Tue Sep 15 2020 - 12Z Thu Sep 17 2020 ...Hurricane Sally will bring the threat of hurricane conditions and life-threatening flooding are expected along the Central/Eastern Gulf Coast due to Sally's slow forward motion... ...Wildfires and poor air quality continues over parts of the interior Pacific Northwest, Northern/Central California, the Northern Rockies, and the Great Basin... ...There is a high risk of excessive rainfall over parts of the Central/Eastern Gulf Coast... ...Temperatures will be 10 to 20 degrees above average over parts of the Great Basin/Northern Rockies and the interior Pacific Northwest... Sally is forecast to make landfall Tuesday night/Wednesday morning. When Sally makes landfall the water-related hazards are expected to be the biggest threats to life and property, these threats include life-threatening storm surge, battering surf, inland flooding, hurricane force wind,and a chance for tornadoes. Sally will bring heavy rain to parts of the Eastern/Central Gulf Coast through Thursday. the WPC has issued a high risk of excessive rainfall over parts of the Eastern/Central Gulf Coast through Wednesday morning. The heavy rain and surf associated with Sally will produce severe, widespread flash flooding is expected, this will include areas that don't normally experience flash flooding. Lives and property are in great danger along the path of this storm. Our current forecast calls for 10 to 20 inches of rainfall with isolated amounts of 30 inches over portions of the Central Gulf Coast from the western Florida Panhandle to far southeast Louisiana will be the storm total precipitation. Please see the latest advisory from the National Hurricane Center for additional and updated information across this area. Residents within Sally's reach should continue to monitor the storm's progress and follow the advice of local officials. Elsewhere, a front will move across the northern tier states to the Northeast and southward to Central Plains/Middle Mississippi Valley by Thursday. Behind the front colder temperatures will move into the Upper Midwest with temperatures around 10 degrees below average. Out West, an upper-level ridge over the Intermountain Region continues to support the ongoing poor air quality. As a result, dense smoke advisories and air quality alerts are posted over the Pacific Northwest, parts of California, the Northern Rockies and parts of the Great Basin. The fire weather forecast for Tuesday is elevated level in portions of the Northwest, the Northern California, and Northwestern Nevada. Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php