667 FXUS01 KWBC 140806 PMDSPD Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 AM EDT Sun Jun 14 2026 Valid 12Z Sun Jun 14 2026 - 12Z Tue Jun 16 2026 ...Strong to severe thunderstorms with flooding rainfall this morning across the central U.S. are expected to be less intense as they move farther into the southern Plains... ...Strong to severe thunderstorms are forecast to move across the Mid-Atlantic and the Northeast later today and through tonight... ...Heat will build over the Pacific Northwest as much cooler air surges into the mid-section of the country to end the heat in the East... A weather pattern favoring cold air intrusions from Canada will bring refreshingly cool air to replace the heat and humidity across much of the eastern two-thirds of the country during the next couple of days. However, this process will lead to formation of showers and thunderstorms with possible severe weather and flooding rainfall. The most intense rain and thunderstorms found this morning across the central U.S. are expected to lose intensity as they move toward the southern Plains and the lower Mississippi Valley later today. However, a low pressure wave developing along the cold front will likely trigger additional strong to severe thunderstorms from the Midwest to the Ohio Valley and through the lower Great Lakes this morning. Increasingly southerly wind ahead of the cold front will tend to bring heat and humidity up the East Coast once again this afternoon with high temperatures soaring to near 100 degrees in central North Carolina. The heat and humidity will aid the production of additional strong to severe thunderstorms from the Mid-Atlantic to the Northeast later today ahead of the cold front as the low pressure wave intensifies. Damaging winds appear to be the main concern with this episode of strong to severe thunderstorms. By Monday morning, the cold front is forecast to move off the New England coast as the refreshingly cool air from Canada drops temperatures into the 40s and 50s across the Northern and Central U.S. by Monday morning. These cool readings are forecast to spread into New England by Tuesday morning. Elsewhere, monsoonal showers across the Four Corners and Southern Rockies will be most active later today but should become less active on Monday, tapering off by Tuesday. The Desert Southwest and the Central Valley of California will remain hot, with highs in the 110s and 100s, respectively. Across the Pacific Northwest, heat is forecast to peak today and Monday, with record-high temperatures reaching into the 80s and as high as the mid-90s before cooling off on Tuesday. Farther east, a few record high temperatures are possible across the Mid-Atlantic and Northeast before cooler than normal temperatures arrive on Monday. However, the Gulf Coast will remain hot and humid as the front becomes nearly stationary. From Sunday into Monday, the South is expected to see an increasing chance of showers and thunderstorms. A threat of heavy rain emerges today across southwestern Texas, shifting east on Monday across southern Texas through the lower Mississippi Valley as tropical moisture from a tropical wave near the Mexican east coast begins to interact with the stationary front. Kong Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php $$