Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 357 AM EDT Mon May 14 2018 Valid 12Z Mon May 14 2018 - 12Z Wed May 16 2018 ...A slight risk of severe thunderstorms today from the Southern Plains to the Midwest and east over parts of the Mid-Ohio Valley and Mid-Atlantic... ...Heavy rain possible from the Midwest to the Central Appalachians through Tuesday... ...Heavy rain possible over the east coast of the Florida Peninsula... Scattered to widespread showers and thunderstorms will fire along a quasi-stationary front over the central U.S. through midweek. The Storm Prediction Center has highlighted a vast area spanning from the Southern Plains to the Central Appalachians, along the frontal boundary, as having a slight risk for severe weather. For Additional details, please refer to the SPC website. Abundant moisture will feed northward over this boundary, and given the slow movement of the front, storms will likely track over the same area. This will increase the likelihood for excessive rainfall, which could lead to flash flooding for portions of the Midwest and Ohio Valley today. The area of risk will shift into the Central Appalachians and Northeast on Tuesday. In addition, diurnally driven showers and thunderstorms will develop along and ahead of the associated dryline through Tuesday, too. Additionally, a deep upper-level low over the Great Basin will slowly weaken through Tuesday evening. The energy associated with the low will aid in producing showers and thunderstorms over parts of the Northern/Central Plains, Northern Intermountain Region, Great Basin, and the Sierras likewise through Tuesday. An area of low pressure is forecast to hang out over the eastern Gulf of Mexico, which will draw moisture from the tropics an into over Florida. Showers and thunderstorms are expected to generate over Florida and will slowly move northward into the Southeast and into the Central Gulf Coast by Tuesday evening. Periods of heavy rainfall can be expected for portions of Florida. Campbell/Ziegenfelder Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php