Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 359 PM EDT Fri May 25 2018 Valid 00Z Sat May 26 2018 - 00Z Mon May 28 2018 ...A slight risk of severe thunderstorms is possible from the Great Lakes to the southern Plains... ...Sub Tropical Storm Alberto tracking northward through the Gulf of Mexico will give way to rainfall across the Gulf Coast, Southeast and Mid-Atlantic... ...Plains and Upper Midwest will have well above normal temperatures... Showers and thunderstorms will fire across the High Plains this weekend with the help of warm, moist air transporting north through the central CONUS from the Gulf of Mexico. With instability in place and a cold front sweeping across the Upper Midwest, thunderstorms are expected to develop along and ahead of this boundary. The Storm Prediction Center has issued slight risks for severe weather through Saturday morning for Wisconsin/Minnesota/Iowa border where convection will fire along the frontal boundary and another area along the Texas/Oklahoma were strong convection will fire east of a dry line. For specific details on the risks of severe weather, please refer to the SPC website. Showers and a few thunderstorms will pass from the West Coast through the Great Basin and Intermountain West as low pressure system advances slowly through the region- with snow possible in the higher peaks Portions of the Intermountain West will have a marginal risk for strong to severe thunderstorms to develop. Meanwhile, an impressive cold front will drop south into New England by Saturday morning with showers and thunderstorms is expected to fire off ahead of this boundary and will move into the interior of New England These storms do have a marginal risk of becoming severe. As the cold front presses southward across southern New England and into the Northeast, showers and thunderstorms are expected to follow suit. Sub Tropical Storm Alberto is expected to strength to strength as it tracks from the northwest Caribbean into the Gulf of Mexico. This system will bring an abundance of moisture across the Gulf Coast and Southeast with and increased chance for thunderstorms for the Central Appalachians. Temperatures heading into the holiday weekend will vary in terms of respect to climatology depending on the region. The Southeast will generally be below normal due to the wet conditions. The Great Basin and West Coast will also be below normal as a cold front and showers and thunderstorms sweep across the area. The northern and central Plains, northern Mississippi Valley and Upper Midwest will be nearly 20 degrees above normal throughout the weekend! High temperatures are expected to be in the mid-90s. West Texas can also expect temperatures to reach the century mark--with these temperatures being 10 to 15 degrees above normal. Campbell/Reinhart Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php