Short Range Forecast Discussion...Correction NWS Weather Prediction Center College Park MD 221 AM EDT Mon Jul 08 2019 Valid 12Z Mon Jul 08 2019 - 12Z Wed Jul 10 2019 ...Severe weather and heavy rainfall for the northern and central Plains through Tuesday... ...Heavy rainfall is expected across the southern Mid-Atlantic & Carolinas on Monday... ...Heavy rainfall for Florida through Wednesday... ...Record heat will continue across portions of southern Alaska on Monday... A disturbance aloft near the Pacific Northwest will help consolidate a low pressure system across the northern Plains today/Monday. This low center will cross the Dakotas and approach the Upper Midwest on Tuesday, dragging a cold front into the central Plains which reaches the southern Plains Wednesday morning. Heavy rainfall is expected with the system as it pushes east, with localized areas of flash flooding and severe thunderstorms (with large hail and damaging winds) across portions of the central and northern Plains this afternoon and evening. The focus on Tuesday shifts to heavy rainfall for portions of the northern Plains and Midwest, which progresses to the Great Lakes Wednesday. To the east, a cold front will settle slowly south across the Tennessee Valley, central and southern Appalachians, and southern Mid-Atlantic Monday. Locally heavy rainfall is expected across the central Appalachians and North Carolina/Virginia Monday. The front moves into the Southeast Tuesday before stalling and weakening on Wednesday, with the heavy rainfall threat shifting southward with the boundary into Georgia and the Carolinas. An area of low pressure drifts southward from Georgia into the northeast Gulf of Mexico by Wednesday morning, bringing the promise of heavy rainfall to Florida today through Wednesday. The National Hurricane Center (NHC) advertises a high chance of this system evolving into a tropical depression later this week. See Tropical Outlooks from NHC for the latest on this system's prospects as a tropical system in the northeast and north-central Gulf of Mexico. A strong ridge of high pressure over Alaska slowly weakens and shifts northwest. A dry northerly flow to its east is expected to foster a continuation of dry conditions and near-record to record high temperatures today/Monday, with all-time records within reach, for southern Alaska as temperatures soar into the 80s and 90s. Wildfires will remain a concern which will drive areas of smoke, and a degradation of air quality as a result. From Tuesday onward, temperatures will fall towards July averages. Roth Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php