Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 347 PM EDT Sat May 26 2018 Valid 00Z Sun May 27 2018 - 00Z Tue May 29 2018 ...Subtropical Storm Alberto will bring heavy rainfall across the central and eastern Gulf Coast as well as for portions of the Southeast... ...Heavy rainfall and flash flooding possible tonight into Sunday for portions of the Mid-Atlantic... ...Severe weather possible across the northern and central Plains through the weekend and into early next week... Subtropical Storm Alberto will continue a northerly track through the eastern Gulf of Mexico over the next few days, and based on the latest advisory from the National Hurricane Center, is expected to make landfall along the central Gulf coast by Monday night. In the meantime, significant moisture will continue being pulled northward across Florida, the central Gulf Coast, and into much of the Southeast this weekend and into the early work week. In addition to the Southeastern and Gulf Coast states, heavy rainfall will also be possible across the central Appalachians and into the Mid-Atlantic states, as multiple waves of energy move through in the broad mid-upper level troughing surrounding Alberto. A slight to moderate risk for excessive rainfall/flash flooding is highlighted in WPCs excessive rainfall outlooks across much of the Southeast, with a marginal to slight risk extending northward into the Mid-Atlantic tonight and on Sunday. As is usually the case with tropical systems, there is also a marginal risk for severe weather and tornadoes, particularly for Florida and portions of the eastern/central Gulf Coast. For the latest information on the track and intensity of Alberto, please refer to the National Hurricane Center (www.hurricanes.gov). Elsewhere across the country, showers and thunderstorms will continue to expand across portions of the Intermountain West tonight, and into the Plains Sunday and Monday. A surface low and cold front moving slowly eastward into the High Plains should help provide a focus for heavy rainfall and possible severe weather. The SPC has highlighted much of the northern and central Plains within a marginal to slight risk for severe weather tonight and into Monday. By Monday, storms will also develop along a frontal boundary as it drops into the northern Mississippi Valley. Ahead of this system, temperatures will be very warm across much of the central U.S. and the Mid-west with afternoon high temperatures as much as 10 to 20 degrees above normal possible. Santorelli Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php