Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 400 AM EDT Tue May 25 2021 Valid 12Z Tue May 25 2021 - 12Z Thu May 27 2021 ...Showers and thunderstorms across the Great Plains and Midwest will spread into the Northeast on Wednesday... ...More wet snow for the northern Rockies to North Dakota as strong to severe thunderstorms develop in the north-central Plains... ...Heat intensifies along the East Coast on Wednesday... A large and rather intense low pressure system over south-central Canada will begin to move more quickly toward the northeast and intensify further. This will help pushing the trailing cold front to move more quickly across the Plains toward the eastern U.S. during the next couple of days. The associated scattered showers and thunderstorms will continue to be across the central to southern Plains into tonight. By Wednesday, a reinforcing cold front moving across the Great Lakes will push the showers and thunderstorms steadily eastward toward the northeastern U.S. as heat is forecast to intensify up and down the East Coast Wednesday afternoon. The Mid-Atlantic states could see readings challenging daily high temperature records after another day of relatively cool and damp conditions. Parts of the upper Midwest could see thunderstorm reaching severe levels this evening. The Northeast will see a higher chance for severe weather later on Wednesday ahead of a strong cold front. In contrast to the heat in the East, cooler than normal conditions will continue across the Northwest. A frontal system currently entering the Pacific Northwest is forecast to reach the central High Plains by Wednesday and produce the next round of spring thunderstorms across the central Plains. The Storm Prediction Center has issued a enhanced risk of severe weather from eastern Wyoming to southwest Iowa and northwest Missouri on Wednesday. Showers will likely be found across the northern Rockies and Great Basin on Tuesday and Wednesday as well. Throughout the eastern U.S., the brief shot of cool weather today across the Mid-Atlantic and Northeast will be short lived as a warm front lifts across the region by Wednesday. In fact, record-breaking warmth is forecast from North Carolina to New Jersey. High temperatures are expected to reach the low-to-mid 90s and around 10 to 20 degrees above average. The combination of warm temperatures and an approaching cold front may also lead to scattered thunderstorms Wednesday evening, with a few severe thunderstorms not out of the question. Kong/Snell Graphics available at www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php