Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 342 PM EDT Mon Jun 03 2019 Valid 00Z Tue Jun 04 2019 - 00Z Thu Jun 06 2019 ...Severe weather and excessive rain threats spread east across the south-central U.S through Wednesday.... ...Much above normal temperatures continue across the Northern Plains... An upper level trough over the Desert Southwest this afternoon will move east to the southern Rockies through Wednesday and be the main weather maker for the country through the next couple of days. Moisture streaming north from the Gulf of Mexico ahead of this trough will intersect a slow moving warm front over the southern Great Plains with flash flooding a concern across parts of the Central and Southern Plains, including west and north Texas which has received much above normal rainfall in recent weeks. The heavy rain and severe weather threat will shift east with the warm front into the middle Mississippi Valley on Tuesday, while continuing across parts of the Southern High Plains. Both SPC and WPC highlight these regions within slight risks for severe thunderstorms and flash flooding, respectively. Please see the outlooks from these centers for more information. Canadian-sourced high pressure that has brought cool and dry conditions to the eastern U.S. will shift off the Mid-Atlantic coast on Tuesday with more typical meteorological summer-like conditions following, as warmer and more moist air spreads in from the Gulf of Mexico. Well above normal temperatures (departures +10 to +20 degrees) will persist across much of the Northern Plains under a ridge of high pressure through the rest of the week with daytime highs in the mid 80s to around 90 degrees expected. A cold front off the Pacific Ocean pushes into the Pacific Northwest on Wednesday bringing a return of below normal temperatures there. High pressure will persist over the southeastern U.S. where dryer than normal conditions will persist through at least midweek. Jackson Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php