Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 349 PM EDT Sun Jun 16 2019 Valid 00Z Mon Jun 17 2019 - 00Z Wed Jun 19 2019 ...Greatest risks for severe thunderstorms through Monday over portions of the central and southern Plains into portions of the Ohio Valley into the northern Mid-Atlantic... ...Threats for flash flooding will exist over portions of the central and southern Plains into the Ohio Valley and northern Mid-Atlantic region through Tuesday... The weather pattern over the lower 48 will be slow to evolve over the next couple of days with common themes in place each day for many locations. Anomalous moisture will remain located to the south of two slow moving fronts currently stretching from the Northeast coast into the central Plains with another front from the Midwest back into Texas. While temperatures will not be notably hot to the south of these fronts, low level moisture combined with weak impulses aloft will help to drive a threat for scattered thunderstorms. Multiple rounds of thunderstorms are expected over the next couple of days with the greatest coverage during the afternoon and evening hours. Some of these storms will have the potential to be severe and produce flash flooding with 3-day rainfall totals forecast between two to four inches form the Ohio Valley to the northern Mid-Atlantic coast. The greatest threats for severe weather for this evening will be across central Texas and along the Ohio Valley to the northern Mid-Atlantic coast where the Storm Prediction Center has Enhanced and Slight risks (respectively) forecast through Monday morning. The severe and heavy rain threat will remain in place east of the Mississippi River but shift to the southern and central High Plains for locations west of the Mississippi for Monday. Across Florida, a weak upper level disturbance interacting with deep tropical-like moisture will continue a threat for locally heavy rain through Monday across the region. The disturbance will move off of the Southeast coast for Tuesday returning conditions closer to typical June-like weather for mid-week. Temperatures will be cooler than average for mid-June from the Great Lakes and Midwest, back through the central Rockies and portions of the southern Great Basin. Temperature anomalies will run roughly 5 to 15 degrees below for daytime highs, while heat will remain across the Pacific Northwest into northern and central California through Tuesday. Across these western locations, high temperatures should generally run from the upper 80s into the 90s, but some triple digit heat is expected for portions of the San Joaquin Valley on Tuesday. Otto Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php