Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 257 PM EST Thu Dec 14 2023 Valid 00Z Fri Dec 15 2023 - 00Z Sun Dec 17 2023 ...Increasing Excessive Rainfall concerns over Florida... A low pressure system beneath a digging upper trough will continue to produce mainly light snow across western Kansas and the Oklahoma and Texas panhandles with generally an additional inch or two possible. Ahead of this system, scattered showers and thunderstorms will continue to spread across Texas and Oklahoma with a threat for mainly isolated flash flooding into Friday. This system should begin to tap Gulf of Mexico moisture to produce additional showers and storms across the western and central Gulf Coast into the weekend. High temperatures will be below average across the Central/Southern High Plains today and tomorrow due to cloud cover and rain showers. Meanwhile, a quasi-stationary front draped across southern Florida will continue to be the focus for showers and thunderstorms throughout the region on Friday. A developing low pressure system out of the southeast Gulf of Mexico will bring anomalous moisture across Florida with a widespread heavy rainfall event appearing more likely beginning Saturday and lasting into the medium range period. Given prior heavy rain across the Sunshine state, there will be an elevated threat for flash flooding across much of the Florida Peninsula. Elsewhere, a wavy front across the northern tier will bring some scattered showers across the Upper Midwest, with light snow across the Great Lakes. Into the weekend, much of the country will have above normal temperatures, with the exception of the Gulf Coast and Florida as a couple of dynamic systems move through. Santorelli/Kebede Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php