Lexington, Massachusetts, USA
Short Range Forecast Discussion NWS Weather Prediction Center College Park MD 438 AM EDT Mon Jun 08 2026 Valid 12Z Mon Jun 08 2026 - 12Z Wed Jun 10 2026 ...There is an Enhanced Risk (level 3/5) of severe thunderstorms over parts of the Northern Plains on Tuesday and the Upper/Middle Mississippi Valley on Wednesday... ...There is a Slight Risk (level 2/5) of severe thunderstorms over parts of the Central Plains on Monday... ...There is a Slight Risk (level 2/4) of excessive rainfall over parts of the Middle/Lower Mississippi Valley, Tennessee Valley, and Central/Southern Plains on Monday... ...There is a Slight Risk (level 2/4) of excessive rainfall over parts of the Ohio/Tennessee Valleys and Northern Plains on Tuesday... Moisture flowing northward over the Mississippi Valley will produce showers and thunderstorms with heavy rain over the Upper/Middle Mississippi Valley, the Ohio Valley, and the Tennessee Valley. Therefore, the WPC issued a Slight Risk (level 2/4) of excessive rainfall over parts of the region through Tuesday morning. The associated heavy rain will mainly cause localized flash flooding, with urban areas, roads, small streams, and low-lying areas most vulnerable. In addition, showers and severe thunderstorms will develop over parts of the Central Plains and Central High Plains. Therefore, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the Central High Plains and the Central Plains through Tuesday morning. The hazards associated with these thunderstorms include frequent lightning, severe wind gusts, hail, and the threat of tornadoes. On Tuesday, there is an Enhanced Risk (level 3/5) of severe thunderstorms over parts of the Northern Plains. The hazards associated with these thunderstorms include frequent lightning, severe wind gusts, hail, and the threat of tornadoes. Moreover, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Northern Plains and Upper Mississippi Valley. Furthermore, the WPC has issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Ohio/Tennessee Valley on Tuesday into Wednesday morning. The associated heavy rain will mainly cause localized flash flooding, with urban areas, roads, small streams, and low-lying areas most vulnerable over both regions. The threat of severe thunderstorms moves into the Upper/Middle Mississippi Valley as the front moves eastward on Wednesday. Therefore, the SPC has issued a Slight Risk (level 2/5) of severe thunderstorms over parts of the Upper/Middle Mississippi Valley on Wednesday. The hazards associated with these thunderstorms include frequent lightning, severe wind gusts, hail, and the threat of tornadoes. Moreover, showers and thunderstorms with heavy rain will develop over parts of the Central Plains/Middle Mississippi Valley. Therefore, the WPC issued a Slight Risk (level 2/4) of excessive rainfall over parts of the Central Plains/Middle Mississippi Valley on Wednesday. The associated heavy rain will mainly cause localized flash flooding, with urban areas, roads, small streams, and low-lying areas most vulnerable. Meanwhile, a front moving onshore over the Pacific Northwest on Monday will trigger rain over parts of the Northwest and the Northern California Coast, which will move inland to the Northern Intermountain Region overnight Monday. Onshore flow and upper-level energy will help produce rain and high-elevation snow over parts of the Pacific Northwest and the Northern Intermountain Region by Tuesday into Wednesday. Ziegenfelder Graphics available at https://www.wpc.ncep.noaa.gov/basicwx/basicwx_ndfd.php