Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 426 PM EDT Wed Jun 21 2017 Valid 00Z Thu Jun 22 2017 - 00Z Sat Jun 24 2017 ...Tropical storm Cindy is forecast to make landfall Thursday morning near the Louisiana-Texas border... ...Very heavy rain is expected to track inland across the Deep South into Tennessee Valley for the next couple of days... ...Excessive heat in the Desert Southwest continues for a couple more days... Tropical storm Cindy continues to move steadily to the northwest towards the western Gulf Coast. Tropical moisture streaming up from the Gulf of Mexico has been interacting with a coastal front, resulting in widespread tropical downpours and areas of flash flooding across the Deep South. The center of Cindy is forecast to make landfall Thursday morning near the Louisiana-Texas border bringing tropical force winds, high seas, and heavy rain in the coastal sections. Cindy is forecast to weaken over land and turn towards the north on Thursday before gradually turning towards the northeast on Friday as an upper-level trough quickly approaches from the north. The heaviest rainfall is expected to fall near and along the track of Cindy where flash flooding will remain a serious threat. Outside of the track of Cindy, a continued influx of tropical moisture will continue to keep heavy rain a threat along the central Gulf Coast into Thursday. Farther to the north, a cool air mass associated with the aforementioned upper trough will move swiftly across the northern section of the country. The associated cold front will bring showers and thunderstorms across the northern Plains into the upper Midwest on Thursday before moving towards and interacting with the remnants of Cindy on Friday over the Tennessee Valley. As this interaction occurs, very heavy rain could spread rapidly across Arkansas into Tennessee and Kentucky on Friday. Meanwhile, showers and thunderstorms should reach farther northeast along the Appalachians into New Engalnd Friday afternoon ahead of the cold front. Over the Desert Southwest, excessive heat continues to plague the area under the influence of a strong high pressure cell aloft. Temperatures will once again reach the century mark in the interior California valleys, and the 120-degree mark at some locations in the desert! The excesive heat will begin to show signs of abating by Friday. Kong Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php